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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P12)

Read the following passage and mark the letter A, B , C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Speech is one of the most important (13) ______ communicating. It consists of far more than just making noises. To talk and also to (14) ______ by other people, we have to speak a language, that is, we have to use combinations of (15) ______ that everyone agrees to stand for a particular object or idea. Communication would be impossible if everyone made up their own language.Learning a language properly is very (16)______ . The basic (17) ______ of English is not very large, and not only about 2,000 words are needed to speak it quite (18)______. But the more idea you can (19) ______ the more precise you can be about their exact meaning.Words are the (20) ______ thing we use in communicating what we want to say. The way we (21)______ the words is also very important. Our tone of voice can express many emotions and (22) ______ whether we are pleasedor angry, for instanceĐiền vào ô 22

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 26)

Rosemary Dare is a wildlife photographer. She__________in Uganda for many years.

Tiếng Anh Tốt nghiệp THPT
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BÀI TẬP LÝ THUYẾT

Từ hỗn hợp (CuO, MgO, Al2O3) để điều chế Al, Mg, Cu, có thể sử dụng thêm dãy hóa chất nào dưới đây (các dụng cụ thiết bị coi như có đủ)?

Hóa học Lớp 12
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BÀI TẬP LÝ THUYẾT

Cho hỗn hợp gồm Fe, Mg, Al vào dung dịch chứa AgNO3 và Cu(NO3)2 khi các phản ứng xảy ra hoàn toàn thu được dung dịch X (gồm 3 muối) và chất rắn Y (gồm 3 kim loại). 3 muối trong X là:

Hóa học Lớp 12
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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P12)

Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction.Since erecting (A) in 1886, the Statue of Liberty has served (B) as a (C) symbol of freedom.(D)

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 3)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Choosing a career may be one of the hardest jobs you ever have, and it must be done with care. View a career as an opportunity to do something you love, not simply as a way to earn a living. Investing the time and effort to thoroughly explore your options can mean the difference between finding a stimulating and rewarding career and move from job to unsatisfying job in an attempt to find the right one. Work influences virtually every aspect of your life, from your choice of friends to where you live. Here are just a few of the factors to consider.Deciding what matters most to you is essential to making the right decision. You may want to begin by assessing your likes, dislikes, strengths, and weaknesses. Think about the classes, hobbies, and surroundings that you find most appealing. Ask yourself questions, such as “Would you like to travel? Do you want to work with children? Are you more suited to solitary or cooperative work?” There are no right or wrong answers; only you know what is important to you. Determine which job features you require, which ones you would prefer, and which ones you cannot accept. Then rank them in order of importance to you.The setting of the job is one factor to take into account. You may not want to sit at a desk all day. If not, there are diversity occupation – building inspector, supervisor, real estate agent – that involve a great deal of time away from the office. Geographical location may be a concern, and employment in some fields is concentrated in certain regions. Advertising job can generally be found only in large cities. On the other hand, many industries such as hospitality, law education, and retail sales are found in all regions of the country. If a high salary is important to you, do not judge a career by its starting wages. Many jobs, such as insurance sales, offers relatively low starting salaries; however, pay substantially increases along with your experience, additional training, promotions and commission.Don’t rule out any occupation without learning more about it. Some industries evoke positive or negative associations. The traveling life of a flight attendant appears glamorous, while that of a plumber does not. Remember that many jobs are not what they appear to be at first, and may have merits or demerits that are less obvious. Flight attendants must work long, grueling hours without sleeps, whereas plumbers can be as highly paid as some doctors.Another point to consider is that as you mature, you will likely develop new interests and skills that may point the way to new opportunities. The choice you make today need not be your final one.In paragraph 5, the author suggests that ____________

Tiếng Anh Tốt nghiệp THPT
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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 3)

Read the following text then answer the questions that followed by circling its corresponding letter marked A, B, C or D from 38 to 42. Sometimes you know things about people the first time you see them, for example, that you want to be friends with them or that you don’t trust them. But perhaps this kind of intuition isn’t as hard to explain as it may seem. For instance, people give out their body language signals all the time. The way you hold your body, head and arms tells people about your mood. If you hold your arms tightly at your sides, or fold them across your chest, people will generally feel that you are being defensive. Holding your head to one side shows interest in the other, while an easy, open posture indicates that you are self-confident. All this affects the way you feel about someone. Also, a stranger may remind you of a meeting with someone. This may be because of something as simple as the fact that he or she is physically similar to someone who treated you well or badly. Your feelings about a stranger could be influenced by a smell in the air that brings to mind a place where you were happy as a child. Since even a single word can bring back a memory such as that, you may never realize it is happening.What one feels about a stranger may be influenced by something that___________.

Tiếng Anh Tốt nghiệp THPT
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P12)

Read the following passage and mark the letter A, B , C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Speech is one of the most important (13) ______ communicating. It consists of far more than just making noises. To talk and also to (14) ______ by other people, we have to speak a language, that is, we have to use combinations of (15) ______ that everyone agrees to stand for a particular object or idea. Communication would be impossible if everyone made up their own language.Learning a language properly is very (16)______ . The basic (17) ______ of English is not very large, and not only about 2,000 words are needed to speak it quite (18)______. But the more idea you can (19) ______ the more precise you can be about their exact meaning.Words are the (20) ______ thing we use in communicating what we want to say. The way we (21)______ the words is also very important. Our tone of voice can express many emotions and (22) ______ whether we are pleasedor angry, for instanceĐiền vào ô 21

Tiếng Anh Tốt nghiệp THPT
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BÀI TẬP LÝ THUYẾT

Hòa tan hoàn toàn hỗn hợp gồm MgO, Zn(OH)2, Al, FeCO3, Cu(OH)2, Fe trong dung dịch H2SO4 loãng dư, sau phản ứng thu được dung dịch X. Cho vào dung dịch X một lượng Ba(OH)2 dư thu được kết tủa Y. Nung Y trong không khí đến khối lượng không đổi được hỗn hợp rắn Z, sau đó dẫn luồng khí CO dư (ở nhiệt độ cao) từ từ đi qua Z đến khi phản ứng xảy ra hoàn toàn thu được chất rắn G. Thành phần các chất trong G là

Hóa học Lớp 12
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Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 04)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questionsMartin Luther King, Jf., is well- known for his work in civil rights and for his many famous speeches, among which is his moving “ I have a dream” speech. But fewer people know much about King’s childhood. M.L., as he was called, was born in 1929 in Atlanta, Georgia, at the home of his maternal grandfather. M.L.’s grandfather purchased their home on Auburn Avenue in 1909, twenty years before M.L was born. His grandfather allowed the house to be used as a meeting place for a number of organizations dedicated to the education and social advancement of blacks. M.L. grew up in the atmosphere, with his home being used as a community gathering place, and was no doubt influenced by it.   M.L.’s childhood was not especially eventfully. His father was a minister and his mother was a musician. He was the second of three children, and he attended all black schools in a black neighborhood. The neighborhood was not poor, however. Auburn Avenue was an area of banks, insurance companies, builders, jewelers, tailors, doctors, lawyers, and other businesses and services. Even in the face of Atlanta’s segregation, the district thrived. Dr. King never forgot the community spirit he had known as a child, nor did he forget the racial prejudice that was a huge barrier keeping black Atlantans from mingling with whites.M.L. was _______ by the atmosphere in which he grew up

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 26)

If you had taken your dad's advice, you__________such a silly mistake.

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.Learning means acquiring knowledge or developing the ability to perform new behaviors. It is common to think of learning as something that takes place in school, but much of human learning occurs outside the classroom, and people continue to learn throughout their lives.Even before they enter school, young children learn to walk, to talk, and to use their hands to manipulate toys, food, and other objects. They use all of their senses to learn about the sights, sounds, tastes, and smells in their environments. They learn how to interact with their parents, siblings,  friends, and other people important to their world. When they enter school, children learn basic academic subjects such as reading, writing, and mathematics. They also continue to learn a great deal outside the classroom. They learn which behaviors are likely to be rewarded and which are likely to  be punished. They learn social skills for interacting with other children. After they finish school, people must learn to adapt to the many major changes that affect their lives, such as getting married, raising children, and finding and keeping a job.Because learning continues throughout our lives and affects almost everything we do, the study of learning is important in many different fields. Teachers need to understand the best ways to educate children. Psychologists, social workers, criminologists, and other human-service workers need to understand how certain experiences change people’s behaviors. Employers, politicians,  and advertisers make use of the principles of learning to influence the behavior of workers, voters, and consumers.Learning is closely related to memory, which is the storage of information  in  the  brain.  Psychologists who study memory are interested in how the brain stores knowledge, where this storage takes place, and how the brain later retrieves knowledge when we need it. In contrast, psychologists who study learning are more interested in behavior and how behavior changes as a result  of  a person’s experiences.There are many forms of learning, ranging from simple to complex. Simple forms  of  learning  involve a single stimulus. A stimulus is anything perceptible to the senses, such as a sight, sound, smell, touch, or taste. In a form of learning known as classical conditioning, people learn to associate two stimuli that occur in sequence, such as lightning followed by thunder. In operant conditioning, people learn by forming an association between a behavior and its consequences (reward or punishment). People and animals can also learn by observation - that is, by watching others perform behaviors. More complex forms of learning include learning languages, concepts, and motor skills. The passage mainly discusses _____ .

Tiếng Anh Tốt nghiệp THPT
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BÀI TẬP LÝ THUYẾT

Chỉ dùng dung dịch KOH để phân biệt được các chất riêng biệt trong nhóm nào sau đây?

Hóa học Lớp 12
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P12)

Read the following passage and mark the letter A, B , C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Speech is one of the most important (13) ______ communicating. It consists of far more than just making noises. To talk and also to (14) ______ by other people, we have to speak a language, that is, we have to use combinations of (15) ______ that everyone agrees to stand for a particular object or idea. Communication would be impossible if everyone made up their own language.Learning a language properly is very (16)______ . The basic (17) ______ of English is not very large, and not only about 2,000 words are needed to speak it quite (18)______. But the more idea you can (19) ______ the more precise you can be about their exact meaning.Words are the (20) ______ thing we use in communicating what we want to say. The way we (21)______ the words is also very important. Our tone of voice can express many emotions and (22) ______ whether we are pleasedor angry, for instanceĐiền vào ô 20

Tiếng Anh Tốt nghiệp THPT
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Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 04)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questionsMartin Luther King, Jf., is well- known for his work in civil rights and for his many famous speeches, among which is his moving “ I have a dream” speech. But fewer people know much about King’s childhood. M.L., as he was called, was born in 1929 in Atlanta, Georgia, at the home of his maternal grandfather. M.L.’s grandfather purchased their home on Auburn Avenue in 1909, twenty years before M.L was born. His grandfather allowed the house to be used as a meeting place for a number of organizations dedicated to the education and social advancement of blacks. M.L. grew up in the atmosphere, with his home being used as a community gathering place, and was no doubt influenced by it.   M.L.’s childhood was not especially eventfully. His father was a minister and his mother was a musician. He was the second of three children, and he attended all black schools in a black neighborhood. The neighborhood was not poor, however. Auburn Avenue was an area of banks, insurance companies, builders, jewelers, tailors, doctors, lawyers, and other businesses and services. Even in the face of Atlanta’s segregation, the district thrived. Dr. King never forgot the community spirit he had known as a child, nor did he forget the racial prejudice that was a huge barrier keeping black Atlantans from mingling with whites.From the passage we can infer that:

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 3)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Choosing a career may be one of the hardest jobs you ever have, and it must be done with care. View a career as an opportunity to do something you love, not simply as a way to earn a living. Investing the time and effort to thoroughly explore your options can mean the difference between finding a stimulating and rewarding career and move from job to unsatisfying job in an attempt to find the right one. Work influences virtually every aspect of your life, from your choice of friends to where you live. Here are just a few of the factors to consider.Deciding what matters most to you is essential to making the right decision. You may want to begin by assessing your likes, dislikes, strengths, and weaknesses. Think about the classes, hobbies, and surroundings that you find most appealing. Ask yourself questions, such as “Would you like to travel? Do you want to work with children? Are you more suited to solitary or cooperative work?” There are no right or wrong answers; only you know what is important to you. Determine which job features you require, which ones you would prefer, and which ones you cannot accept. Then rank them in order of importance to you.The setting of the job is one factor to take into account. You may not want to sit at a desk all day. If not, there are diversity occupation – building inspector, supervisor, real estate agent – that involve a great deal of time away from the office. Geographical location may be a concern, and employment in some fields is concentrated in certain regions. Advertising job can generally be found only in large cities. On the other hand, many industries such as hospitality, law education, and retail sales are found in all regions of the country. If a high salary is important to you, do not judge a career by its starting wages. Many jobs, such as insurance sales, offers relatively low starting salaries; however, pay substantially increases along with your experience, additional training, promotions and commission.Don’t rule out any occupation without learning more about it. Some industries evoke positive or negative associations. The traveling life of a flight attendant appears glamorous, while that of a plumber does not. Remember that many jobs are not what they appear to be at first, and may have merits or demerits that are less obvious. Flight attendants must work long, grueling hours without sleeps, whereas plumbers can be as highly paid as some doctors.Another point to consider is that as you mature, you will likely develop new interests and skills that may point the way to new opportunities. The choice you make today need not be your final one.According to paragraph 3, which of the following fields is NOT suitable for a person who does not want to live in a big city?

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.Learning means acquiring knowledge or developing the ability to perform new behaviors. It is common to think of learning as something that takes place in school, but much of human learning occurs outside the classroom, and people continue to learn throughout their lives.Even before they enter school, young children learn to walk, to talk, and to use their hands to manipulate toys, food, and other objects. They use all of their senses to learn about the sights, sounds, tastes, and smells in their environments. They learn how to interact with their parents, siblings,  friends, and other people important to their world. When they enter school, children learn basic academic subjects such as reading, writing, and mathematics. They also continue to learn a great deal outside the classroom. They learn which behaviors are likely to be rewarded and which are likely to  be punished. They learn social skills for interacting with other children. After they finish school, people must learn to adapt to the many major changes that affect their lives, such as getting married, raising children, and finding and keeping a job.Because learning continues throughout our lives and affects almost everything we do, the study of learning is important in many different fields. Teachers need to understand the best ways to educate children. Psychologists, social workers, criminologists, and other human-service workers need to understand how certain experiences change people’s behaviors. Employers, politicians,  and advertisers make use of the principles of learning to influence the behavior of workers, voters, and consumers.Learning is closely related to memory, which is the storage of information  in  the  brain.  Psychologists who study memory are interested in how the brain stores knowledge, where this storage takes place, and how the brain later retrieves knowledge when we need it. In contrast, psychologists who study learning are more interested in behavior and how behavior changes as a result  of  a person’s experiences.There are many forms of learning, ranging from simple to complex. Simple forms  of  learning  involve a single stimulus. A stimulus is anything perceptible to the senses, such as a sight, sound, smell, touch, or taste. In a form of learning known as classical conditioning, people learn to associate two stimuli that occur in sequence, such as lightning followed by thunder. In operant conditioning, people learn by forming an association between a behavior and its consequences (reward or punishment). People and animals can also learn by observation - that is, by watching others perform behaviors. More complex forms of learning include learning languages, concepts, and motor skills. According to the passage, the stimulus in simple forms of learning _____ .

Tiếng Anh Tốt nghiệp THPT
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BÀI TẬP LÝ THUYẾT

Bốn kim loại Na; Al; Fe và Cu được ấn định không theo thứ tự X, Y, Z, T biết rằng: X, Y được điều chế bằng phương pháp điện phân nóng chảy; X đẩy được kim loại T ra khỏi dung dịch muối; Z tác dụng được với dung dịch H2SO4 đặc nóng nhưng không tác dụng được với dung dịch H2SO4 đặc, nguội. X, Y, Z, T lần lượt là:

Hóa học Lớp 12
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 26)

You won't know what to do__________you listen carefully.

Tiếng Anh Tốt nghiệp THPT
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Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 04)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questionsMartin Luther King, Jf., is well- known for his work in civil rights and for his many famous speeches, among which is his moving “ I have a dream” speech. But fewer people know much about King’s childhood. M.L., as he was called, was born in 1929 in Atlanta, Georgia, at the home of his maternal grandfather. M.L.’s grandfather purchased their home on Auburn Avenue in 1909, twenty years before M.L was born. His grandfather allowed the house to be used as a meeting place for a number of organizations dedicated to the education and social advancement of blacks. M.L. grew up in the atmosphere, with his home being used as a community gathering place, and was no doubt influenced by it.   M.L.’s childhood was not especially eventfully. His father was a minister and his mother was a musician. He was the second of three children, and he attended all black schools in a black neighborhood. The neighborhood was not poor, however. Auburn Avenue was an area of banks, insurance companies, builders, jewelers, tailors, doctors, lawyers, and other businesses and services. Even in the face of Atlanta’s segregation, the district thrived. Dr. King never forgot the community spirit he had known as a child, nor did he forget the racial prejudice that was a huge barrier keeping black Atlantans from mingling with whites.Which of the following statements is NOT true?

Tiếng Anh Tốt nghiệp THPT
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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 3)

Read the following text then answer the questions that followed by circling its corresponding letter marked A, B, C or D from 38 to 42. Sometimes you know things about people the first time you see them, for example, that you want to be friends with them or that you don’t trust them. But perhaps this kind of intuition isn’t as hard to explain as it may seem. For instance, people give out their body language signals all the time. The way you hold your body, head and arms tells people about your mood. If you hold your arms tightly at your sides, or fold them across your chest, people will generally feel that you are being defensive. Holding your head to one side shows interest in the other, while an easy, open posture indicates that you are self-confident. All this affects the way you feel about someone. Also, a stranger may remind you of a meeting with someone. This may be because of something as simple as the fact that he or she is physically similar to someone who treated you well or badly. Your feelings about a stranger could be influenced by a smell in the air that brings to mind a place where you were happy as a child. Since even a single word can bring back a memory such as that, you may never realize it is happening.What influences your impression of a person you meet in the first time?

Tiếng Anh Tốt nghiệp THPT
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BÀI TẬP LÝ THUYẾT

Cho các phát biểu sau:(a)     Các kim loại kiềm đều tan tốt trong nước.(b)    Các kim loại Mg, Fe, K và Al chỉ điều chế được bằng phương pháp điện phân nóng chảy.(c)     Các kim loại Mg, K và Fe đều khử được ion  trong dung dịch thành Ag.(d)    Khi cho Mg vào dung dịch FeCl3 dư thu được kim loại Fe.Số phát biểu đúng là

Hóa học Lớp 12
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Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 3)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Choosing a career may be one of the hardest jobs you ever have, and it must be done with care. View a career as an opportunity to do something you love, not simply as a way to earn a living. Investing the time and effort to thoroughly explore your options can mean the difference between finding a stimulating and rewarding career and move from job to unsatisfying job in an attempt to find the right one. Work influences virtually every aspect of your life, from your choice of friends to where you live. Here are just a few of the factors to consider.Deciding what matters most to you is essential to making the right decision. You may want to begin by assessing your likes, dislikes, strengths, and weaknesses. Think about the classes, hobbies, and surroundings that you find most appealing. Ask yourself questions, such as “Would you like to travel? Do you want to work with children? Are you more suited to solitary or cooperative work?” There are no right or wrong answers; only you know what is important to you. Determine which job features you require, which ones you would prefer, and which ones you cannot accept. Then rank them in order of importance to you.The setting of the job is one factor to take into account. You may not want to sit at a desk all day. If not, there are diversity occupation – building inspector, supervisor, real estate agent – that involve a great deal of time away from the office. Geographical location may be a concern, and employment in some fields is concentrated in certain regions. Advertising job can generally be found only in large cities. On the other hand, many industries such as hospitality, law education, and retail sales are found in all regions of the country. If a high salary is important to you, do not judge a career by its starting wages. Many jobs, such as insurance sales, offers relatively low starting salaries; however, pay substantially increases along with your experience, additional training, promotions and commission.Don’t rule out any occupation without learning more about it. Some industries evoke positive or negative associations. The traveling life of a flight attendant appears glamorous, while that of a plumber does not. Remember that many jobs are not what they appear to be at first, and may have merits or demerits that are less obvious. Flight attendants must work long, grueling hours without sleeps, whereas plumbers can be as highly paid as some doctors.Another point to consider is that as you mature, you will likely develop new interests and skills that may point the way to new opportunities. The choice you make today need not be your final one.The word “assessing” in paragraph 2 could best be replaced by _______.

Tiếng Anh Tốt nghiệp THPT
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Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 04)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questionsMartin Luther King, Jf., is well- known for his work in civil rights and for his many famous speeches, among which is his moving “ I have a dream” speech. But fewer people know much about King’s childhood. M.L., as he was called, was born in 1929 in Atlanta, Georgia, at the home of his maternal grandfather. M.L.’s grandfather purchased their home on Auburn Avenue in 1909, twenty years before M.L was born. His grandfather allowed the house to be used as a meeting place for a number of organizations dedicated to the education and social advancement of blacks. M.L. grew up in the atmosphere, with his home being used as a community gathering place, and was no doubt influenced by it.   M.L.’s childhood was not especially eventfully. His father was a minister and his mother was a musician. He was the second of three children, and he attended all black schools in a black neighborhood. The neighborhood was not poor, however. Auburn Avenue was an area of banks, insurance companies, builders, jewelers, tailors, doctors, lawyers, and other businesses and services. Even in the face of Atlanta’s segregation, the district thrived. Dr. King never forgot the community spirit he had known as a child, nor did he forget the racial prejudice that was a huge barrier keeping black Atlantans from mingling with whites.According to the author, M.L. _______.

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề ôn tập thi THPTQG môn Sinh Học có đáp án (Đề số 15)

Ở 1 loài thực vật, xét 2 gen (A,a) qui định màu quả và (B,b) qui định dạng hạt quan hệ trội lặn hoàn toàn và cùng nằm trên 1 cặp NST tương đồng. Biết rằng, tính trạng quả đỏ và hạt trơn là trội hơn tính trạng quả vàng và hạt nhăn. Cho 2 cây có kiểu gen ABAB và abab giao phấn với nhau thu F1, cho F1 giao phấn ngẫu nhiên thu F2. Biết quá trình phát sinh giao tử ở các cây không xảy ra đột biến và cùng hoán vị với tần số f =20%. Cho các nhận định sau:(1) Trong các hạt trên cây F1, tỉ lệ các hạt mang gen trội về tính trạng hình dạng hạt là 0,75.(2) Trên các quả F1, ta thu được tỉ lệ hạt trơn : nhăn xấp xỉ là 3:1.(3) Khi thu hoạch quả trên các cây F1, ta nhận được tất cả quả đều là quả đỏ.(4) Xác suất chọn được 1 hạt nhăn trong tổng hạt nhăn F2 khi đem gieo ta được cây cho quả vàng là 64%.Số nhận định đúng là

Sinh học Tốt nghiệp THPT
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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.Learning means acquiring knowledge or developing the ability to perform new behaviors. It is common to think of learning as something that takes place in school, but much of human learning occurs outside the classroom, and people continue to learn throughout their lives.Even before they enter school, young children learn to walk, to talk, and to use their hands to manipulate toys, food, and other objects. They use all of their senses to learn about the sights, sounds, tastes, and smells in their environments. They learn how to interact with their parents, siblings,  friends, and other people important to their world. When they enter school, children learn basic academic subjects such as reading, writing, and mathematics. They also continue to learn a great deal outside the classroom. They learn which behaviors are likely to be rewarded and which are likely to  be punished. They learn social skills for interacting with other children. After they finish school, people must learn to adapt to the many major changes that affect their lives, such as getting married, raising children, and finding and keeping a job.Because learning continues throughout our lives and affects almost everything we do, the study of learning is important in many different fields. Teachers need to understand the best ways to educate children. Psychologists, social workers, criminologists, and other human-service workers need to understand how certain experiences change people’s behaviors. Employers, politicians,  and advertisers make use of the principles of learning to influence the behavior of workers, voters, and consumers.Learning is closely related to memory, which is the storage of information  in  the  brain.  Psychologists who study memory are interested in how the brain stores knowledge, where this storage takes place, and how the brain later retrieves knowledge when we need it. In contrast, psychologists who study learning are more interested in behavior and how behavior changes as a result  of  a person’s experiences.There are many forms of learning, ranging from simple to complex. Simple forms  of  learning  involve a single stimulus. A stimulus is anything perceptible to the senses, such as a sight, sound, smell, touch, or taste. In a form of learning known as classical conditioning, people learn to associate two stimuli that occur in sequence, such as lightning followed by thunder. In operant conditioning, people learn by forming an association between a behavior and its consequences (reward or punishment). People and animals can also learn by observation - that is, by watching others perform behaviors. More complex forms of learning include learning languages, concepts, and motor skills. Which of the following statements is NOT true according to the passage?

Tiếng Anh Tốt nghiệp THPT
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P12)

Read the following passage and mark the letter A, B , C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Speech is one of the most important (13) ______ communicating. It consists of far more than just making noises. To talk and also to (14) ______ by other people, we have to speak a language, that is, we have to use combinations of (15) ______ that everyone agrees to stand for a particular object or idea. Communication would be impossible if everyone made up their own language.Learning a language properly is very (16)______ . The basic (17) ______ of English is not very large, and not only about 2,000 words are needed to speak it quite (18)______. But the more idea you can (19) ______ the more precise you can be about their exact meaning.Words are the (20) ______ thing we use in communicating what we want to say. The way we (21)______ the words is also very important. Our tone of voice can express many emotions and (22) ______ whether we are pleasedor angry, for instanceĐiền vào ô 19

Tiếng Anh Tốt nghiệp THPT
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Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 04)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questionsMartin Luther King, Jf., is well- known for his work in civil rights and for his many famous speeches, among which is his moving “ I have a dream” speech. But fewer people know much about King’s childhood. M.L., as he was called, was born in 1929 in Atlanta, Georgia, at the home of his maternal grandfather. M.L.’s grandfather purchased their home on Auburn Avenue in 1909, twenty years before M.L was born. His grandfather allowed the house to be used as a meeting place for a number of organizations dedicated to the education and social advancement of blacks. M.L. grew up in the atmosphere, with his home being used as a community gathering place, and was no doubt influenced by it.   M.L.’s childhood was not especially eventfully. His father was a minister and his mother was a musician. He was the second of three children, and he attended all black schools in a black neighborhood. The neighborhood was not poor, however. Auburn Avenue was an area of banks, insurance companies, builders, jewelers, tailors, doctors, lawyers, and other businesses and services. Even in the face of Atlanta’s segregation, the district thrived. Dr. King never forgot the community spirit he had known as a child, nor did he forget the racial prejudice that was a huge barrier keeping black Atlantans from mingling with whites.What is Martin Luthur King well- known for?

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 3)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Choosing a career may be one of the hardest jobs you ever have, and it must be done with care. View a career as an opportunity to do something you love, not simply as a way to earn a living. Investing the time and effort to thoroughly explore your options can mean the difference between finding a stimulating and rewarding career and move from job to unsatisfying job in an attempt to find the right one. Work influences virtually every aspect of your life, from your choice of friends to where you live. Here are just a few of the factors to consider.Deciding what matters most to you is essential to making the right decision. You may want to begin by assessing your likes, dislikes, strengths, and weaknesses. Think about the classes, hobbies, and surroundings that you find most appealing. Ask yourself questions, such as “Would you like to travel? Do you want to work with children? Are you more suited to solitary or cooperative work?” There are no right or wrong answers; only you know what is important to you. Determine which job features you require, which ones you would prefer, and which ones you cannot accept. Then rank them in order of importance to you.The setting of the job is one factor to take into account. You may not want to sit at a desk all day. If not, there are diversity occupation – building inspector, supervisor, real estate agent – that involve a great deal of time away from the office. Geographical location may be a concern, and employment in some fields is concentrated in certain regions. Advertising job can generally be found only in large cities. On the other hand, many industries such as hospitality, law education, and retail sales are found in all regions of the country. If a high salary is important to you, do not judge a career by its starting wages. Many jobs, such as insurance sales, offers relatively low starting salaries; however, pay substantially increases along with your experience, additional training, promotions and commission.Don’t rule out any occupation without learning more about it. Some industries evoke positive or negative associations. The traveling life of a flight attendant appears glamorous, while that of a plumber does not. Remember that many jobs are not what they appear to be at first, and may have merits or demerits that are less obvious. Flight attendants must work long, grueling hours without sleeps, whereas plumbers can be as highly paid as some doctors.Another point to consider is that as you mature, you will likely develop new interests and skills that may point the way to new opportunities. The choice you make today need not be your final one.The word “them” in paragraph 2 refers to ________.

Tiếng Anh Tốt nghiệp THPT
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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 3)

Read the following text then answer the questions that followed by circling its corresponding letter marked A, B, C or D from 38 to 42. Sometimes you know things about people the first time you see them, for example, that you want to be friends with them or that you don’t trust them. But perhaps this kind of intuition isn’t as hard to explain as it may seem. For instance, people give out their body language signals all the time. The way you hold your body, head and arms tells people about your mood. If you hold your arms tightly at your sides, or fold them across your chest, people will generally feel that you are being defensive. Holding your head to one side shows interest in the other, while an easy, open posture indicates that you are self-confident. All this affects the way you feel about someone. Also, a stranger may remind you of a meeting with someone. This may be because of something as simple as the fact that he or she is physically similar to someone who treated you well or badly. Your feelings about a stranger could be influenced by a smell in the air that brings to mind a place where you were happy as a child. Since even a single word can bring back a memory such as that, you may never realize it is happening.What does the word “open” in the passage most closely mean?

Tiếng Anh Tốt nghiệp THPT
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P12)

Read the following passage and mark the letter A, B , C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Speech is one of the most important (13) ______ communicating. It consists of far more than just making noises. To talk and also to (14) ______ by other people, we have to speak a language, that is, we have to use combinations of (15) ______ that everyone agrees to stand for a particular object or idea. Communication would be impossible if everyone made up their own language.Learning a language properly is very (16)______ . The basic (17) ______ of English is not very large, and not only about 2,000 words are needed to speak it quite (18)______. But the more idea you can (19) ______ the more precise you can be about their exact meaning.Words are the (20) ______ thing we use in communicating what we want to say. The way we (21)______ the words is also very important. Our tone of voice can express many emotions and (22) ______ whether we are pleasedor angry, for instanceĐiền vào ô 18

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.6 K lượt xem 5 năm trước
Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 04)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questionsMartin Luther King, Jf., is well- known for his work in civil rights and for his many famous speeches, among which is his moving “ I have a dream” speech. But fewer people know much about King’s childhood. M.L., as he was called, was born in 1929 in Atlanta, Georgia, at the home of his maternal grandfather. M.L.’s grandfather purchased their home on Auburn Avenue in 1909, twenty years before M.L was born. His grandfather allowed the house to be used as a meeting place for a number of organizations dedicated to the education and social advancement of blacks. M.L. grew up in the atmosphere, with his home being used as a community gathering place, and was no doubt influenced by it.   M.L.’s childhood was not especially eventfully. His father was a minister and his mother was a musician. He was the second of three children, and he attended all black schools in a black neighborhood. The neighborhood was not poor, however. Auburn Avenue was an area of banks, insurance companies, builders, jewelers, tailors, doctors, lawyers, and other businesses and services. Even in the face of Atlanta’s segregation, the district thrived. Dr. King never forgot the community spirit he had known as a child, nor did he forget the racial prejudice that was a huge barrier keeping black Atlantans from mingling with whites.When was M.L. born?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 289 lượt xem 5 năm trước
Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.Learning means acquiring knowledge or developing the ability to perform new behaviors. It is common to think of learning as something that takes place in school, but much of human learning occurs outside the classroom, and people continue to learn throughout their lives.Even before they enter school, young children learn to walk, to talk, and to use their hands to manipulate toys, food, and other objects. They use all of their senses to learn about the sights, sounds, tastes, and smells in their environments. They learn how to interact with their parents, siblings,  friends, and other people important to their world. When they enter school, children learn basic academic subjects such as reading, writing, and mathematics. They also continue to learn a great deal outside the classroom. They learn which behaviors are likely to be rewarded and which are likely to  be punished. They learn social skills for interacting with other children. After they finish school, people must learn to adapt to the many major changes that affect their lives, such as getting married, raising children, and finding and keeping a job.Because learning continues throughout our lives and affects almost everything we do, the study of learning is important in many different fields. Teachers need to understand the best ways to educate children. Psychologists, social workers, criminologists, and other human-service workers need to understand how certain experiences change people’s behaviors. Employers, politicians,  and advertisers make use of the principles of learning to influence the behavior of workers, voters, and consumers.Learning is closely related to memory, which is the storage of information  in  the  brain.  Psychologists who study memory are interested in how the brain stores knowledge, where this storage takes place, and how the brain later retrieves knowledge when we need it. In contrast, psychologists who study learning are more interested in behavior and how behavior changes as a result  of  a person’s experiences.There are many forms of learning, ranging from simple to complex. Simple forms  of  learning  involve a single stimulus. A stimulus is anything perceptible to the senses, such as a sight, sound, smell, touch, or taste. In a form of learning known as classical conditioning, people learn to associate two stimuli that occur in sequence, such as lightning followed by thunder. In operant conditioning, people learn by forming an association between a behavior and its consequences (reward or punishment). People and animals can also learn by observation - that is, by watching others perform behaviors. More complex forms of learning include learning languages, concepts, and motor skills. The word “retrieves ” in paragraph 4 is closest in meaning to                  .

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 3)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions.Choosing a career may be one of the hardest jobs you ever have, and it must be done with care. View a career as an opportunity to do something you love, not simply as a way to earn a living. Investing the time and effort to thoroughly explore your options can mean the difference between finding a stimulating and rewarding career and move from job to unsatisfying job in an attempt to find the right one. Work influences virtually every aspect of your life, from your choice of friends to where you live. Here are just a few of the factors to consider.Deciding what matters most to you is essential to making the right decision. You may want to begin by assessing your likes, dislikes, strengths, and weaknesses. Think about the classes, hobbies, and surroundings that you find most appealing. Ask yourself questions, such as “Would you like to travel? Do you want to work with children? Are you more suited to solitary or cooperative work?” There are no right or wrong answers; only you know what is important to you. Determine which job features you require, which ones you would prefer, and which ones you cannot accept. Then rank them in order of importance to you.The setting of the job is one factor to take into account. You may not want to sit at a desk all day. If not, there are diversity occupation – building inspector, supervisor, real estate agent – that involve a great deal of time away from the office. Geographical location may be a concern, and employment in some fields is concentrated in certain regions. Advertising job can generally be found only in large cities. On the other hand, many industries such as hospitality, law education, and retail sales are found in all regions of the country. If a high salary is important to you, do not judge a career by its starting wages. Many jobs, such as insurance sales, offers relatively low starting salaries; however, pay substantially increases along with your experience, additional training, promotions and commission.Don’t rule out any occupation without learning more about it. Some industries evoke positive or negative associations. The traveling life of a flight attendant appears glamorous, while that of a plumber does not. Remember that many jobs are not what they appear to be at first, and may have merits or demerits that are less obvious. Flight attendants must work long, grueling hours without sleeps, whereas plumbers can be as highly paid as some doctors.Another point to consider is that as you mature, you will likely develop new interests and skills that may point the way to new opportunities. The choice you make today need not be your final one.The author states that “There are no right or wrong answers” in order to __________

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 446 lượt xem 5 năm trước
30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 26)

I will not be here next week. I am going to be__________business in Mexico.

Tiếng Anh Tốt nghiệp THPT
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P12)

Read the following passage and mark the letter A, B , C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Speech is one of the most important (13) ______ communicating. It consists of far more than just making noises. To talk and also to (14) ______ by other people, we have to speak a language, that is, we have to use combinations of (15) ______ that everyone agrees to stand for a particular object or idea. Communication would be impossible if everyone made up their own language.Learning a language properly is very (16)______ . The basic (17) ______ of English is not very large, and not only about 2,000 words are needed to speak it quite (18)______. But the more idea you can (19) ______ the more precise you can be about their exact meaning.Words are the (20) ______ thing we use in communicating what we want to say. The way we (21)______ the words is also very important. Our tone of voice can express many emotions and (22) ______ whether we are pleasedor angry, for instanceĐiền vào ô 17

Tiếng Anh Tốt nghiệp THPT
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Đề luyện thi THPT quốc gia môn tiếng anh có lời giải (Đề số 04)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questionsMartin Luther King, Jf., is well- known for his work in civil rights and for his many famous speeches, among which is his moving “ I have a dream” speech. But fewer people know much about King’s childhood. M.L., as he was called, was born in 1929 in Atlanta, Georgia, at the home of his maternal grandfather. M.L.’s grandfather purchased their home on Auburn Avenue in 1909, twenty years before M.L was born. His grandfather allowed the house to be used as a meeting place for a number of organizations dedicated to the education and social advancement of blacks. M.L. grew up in the atmosphere, with his home being used as a community gathering place, and was no doubt influenced by it.   M.L.’s childhood was not especially eventfully. His father was a minister and his mother was a musician. He was the second of three children, and he attended all black schools in a black neighborhood. The neighborhood was not poor, however. Auburn Avenue was an area of banks, insurance companies, builders, jewelers, tailors, doctors, lawyers, and other businesses and services. Even in the face of Atlanta’s segregation, the district thrived. Dr. King never forgot the community spirit he had known as a child, nor did he forget the racial prejudice that was a huge barrier keeping black Atlantans from mingling with whites.What is the passage mainly about?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 309 lượt xem 5 năm trước
Tổng hợp đề ôn tập thi THPTQG môn Sinh Học có đáp án (Đề số 15)

Hoạt động nào sau đây là yếu tố đảm bảo cho các phân tử ADN mới được tạo ra qua nhân đôi, có cấu trúc giống hệt với phân tử ADN “mẹ”? 

Sinh học Tốt nghiệp THPT
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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.Learning means acquiring knowledge or developing the ability to perform new behaviors. It is common to think of learning as something that takes place in school, but much of human learning occurs outside the classroom, and people continue to learn throughout their lives.Even before they enter school, young children learn to walk, to talk, and to use their hands to manipulate toys, food, and other objects. They use all of their senses to learn about the sights, sounds, tastes, and smells in their environments. They learn how to interact with their parents, siblings,  friends, and other people important to their world. When they enter school, children learn basic academic subjects such as reading, writing, and mathematics. They also continue to learn a great deal outside the classroom. They learn which behaviors are likely to be rewarded and which are likely to  be punished. They learn social skills for interacting with other children. After they finish school, people must learn to adapt to the many major changes that affect their lives, such as getting married, raising children, and finding and keeping a job.Because learning continues throughout our lives and affects almost everything we do, the study of learning is important in many different fields. Teachers need to understand the best ways to educate children. Psychologists, social workers, criminologists, and other human-service workers need to understand how certain experiences change people’s behaviors. Employers, politicians,  and advertisers make use of the principles of learning to influence the behavior of workers, voters, and consumers.Learning is closely related to memory, which is the storage of information  in  the  brain.  Psychologists who study memory are interested in how the brain stores knowledge, where this storage takes place, and how the brain later retrieves knowledge when we need it. In contrast, psychologists who study learning are more interested in behavior and how behavior changes as a result  of  a person’s experiences.There are many forms of learning, ranging from simple to complex. Simple forms  of  learning  involve a single stimulus. A stimulus is anything perceptible to the senses, such as a sight, sound, smell, touch, or taste. In a form of learning known as classical conditioning, people learn to associate two stimuli that occur in sequence, such as lightning followed by thunder. In operant conditioning, people learn by forming an association between a behavior and its consequences (reward or punishment). People and animals can also learn by observation - that is, by watching others perform behaviors. More complex forms of learning include learning languages, concepts, and motor skills. It can be inferred from the passage that social workers, employers, and politicians concern themselves with the study of learning because they need to                 

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 3)

Mark the letter A, B, C or D on your answer sheet to indicate the word of phrase that is OPPOSITE in meaning to the underlined part in each of the following question.During the five-decade history the Asian Games have been advancing in all aspects

Tiếng Anh Tốt nghiệp THPT
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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH (Đề số 3)

Read the following text then answer the questions that followed by circling its corresponding letter marked A, B, C or D from 33 to 37. How can a person offend people just because they cross their legs? In Thailand, it is rude for a person to show other people the bottom of their feet. This is considered unclean, and Thais can (33) …………..serious offense at it. Another thing people do in the West is to touch people on the head especially children. It is very normal to see an old woman walking up to a young boy and (34) …………… his hair tenderly while saying what a handsome young man he is. In Thailand, touching a person’s head is strictly taboo because that is the (35) …………… part of the body, and it is where the (36) ……………. is thought to reside in a person. Although very close family members might touch a child on the head, even this is considered rude after a child grows up. In the Middle East and some parts of Asia, the left hand is used to wash oneself after using a toilet. (37) ………….., the left hand can never offered to another person or used to eat with. Food must always be passed with the right hand, and it is considered polite to always use the right hand for social interactions.

Tiếng Anh Tốt nghiệp THPT
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Tổng hợp đề thi thử mới nhất môn tiếng anh cực hay có lời giải (P12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.Learning means acquiring knowledge or developing the ability to perform new behaviors. It is common to think of learning as something that takes place in school, but much of human learning occurs outside the classroom, and people continue to learn throughout their lives.Even before they enter school, young children learn to walk, to talk, and to use their hands to manipulate toys, food, and other objects. They use all of their senses to learn about the sights, sounds, tastes, and smells in their environments. They learn how to interact with their parents, siblings,  friends, and other people important to their world. When they enter school, children learn basic academic subjects such as reading, writing, and mathematics. They also continue to learn a great deal outside the classroom. They learn which behaviors are likely to be rewarded and which are likely to  be punished. They learn social skills for interacting with other children. After they finish school, people must learn to adapt to the many major changes that affect their lives, such as getting married, raising children, and finding and keeping a job.Because learning continues throughout our lives and affects almost everything we do, the study of learning is important in many different fields. Teachers need to understand the best ways to educate children. Psychologists, social workers, criminologists, and other human-service workers need to understand how certain experiences change people’s behaviors. Employers, politicians,  and advertisers make use of the principles of learning to influence the behavior of workers, voters, and consumers.Learning is closely related to memory, which is the storage of information  in  the  brain.  Psychologists who study memory are interested in how the brain stores knowledge, where this storage takes place, and how the brain later retrieves knowledge when we need it. In contrast, psychologists who study learning are more interested in behavior and how behavior changes as a result  of  a person’s experiences.There are many forms of learning, ranging from simple to complex. Simple forms  of  learning  involve a single stimulus. A stimulus is anything perceptible to the senses, such as a sight, sound, smell, touch, or taste. In a form of learning known as classical conditioning, people learn to associate two stimuli that occur in sequence, such as lightning followed by thunder. In operant conditioning, people learn by forming an association between a behavior and its consequences (reward or punishment). People and animals can also learn by observation - that is, by watching others perform behaviors. More complex forms of learning include learning languages, concepts, and motor skills. According to the passage, the study of learning is important in many fields due to              

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Cho các nhân tố sau:(1) Chọn lọc tự nhiên(2) Giao phối không ngẫu nhiên(3) Giao phối ngẫu nhiên(4) Các yếu tố ngẫu nhiên      (5) Đột biến(6) Di nhập gen.Có bao nhiêu nhân tố không làm thay đổi tần số alen của quần thể?

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Tiến hành phản ứng nhiệt nhôm m gam hỗn hợp A gồm Al và một oxit sắt thu được hỗn hợp chất rắn B. Cho B tác dụng với dung dịch NaOH dư thu được dung dịch C, phần không tan D và 0,672 lít khí H2 (đktc). Cho từ từ dung dịch HCl vào dung dịch C đến khi thu được lượng kết tủa lớn nhất rồi lọc và nung kết tủa đến khối lượng không đổi được 5,1 gam chất rắn. Phần không tan D cho tác dụng hết với dung dịch H2SO4 đặc nóng. Sau phản ứng chỉ thu được dung dịch E chứa một muối sắt duy nhất và 2,688 lít khí SO2 duy nhất (đktc). (Biết  các phản ứng xảy ra hoàn toàn; dung dịch E không hòa tan được bột Cu). Thành phần % khối lượng của oxit sắt trong hỗn hợp A là

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Read the following passage and mark the letter A, B , C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Speech is one of the most important (13) ______ communicating. It consists of far more than just making noises. To talk and also to (14) ______ by other people, we have to speak a language, that is, we have to use combinations of (15) ______ that everyone agrees to stand for a particular object or idea. Communication would be impossible if everyone made up their own language.Learning a language properly is very (16)______ . The basic (17) ______ of English is not very large, and not only about 2,000 words are needed to speak it quite (18)______. But the more idea you can (19) ______ the more precise you can be about their exact meaning.Words are the (20) ______ thing we use in communicating what we want to say. The way we (21)______ the words is also very important. Our tone of voice can express many emotions and (22) ______ whether we are pleasedor angry, for instanceĐiền vào ô 16

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Hợp chất hữu cơ E cacbon không phân nhánh, có công thức phân tử trùng với công thức đơn giản nhất. Đốt cháy hoàn toàn m gam E cần vừa đủ 4,16 gam khí O2, thu được 3,136 lít khí CO2 (đktc) và 1,8 gam H2O. Đun nóng m gam E với dung dịch NaOH dư, có tối đa 1,6 gam NaOH phản ứng, thu được sản phẩm gồm glixerol và muối của một axit cacboxylic T. Phát biểu nào sau đây sai?

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The more you practise your English,__________.

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Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.Learning means acquiring knowledge or developing the ability to perform new behaviors. It is common to think of learning as something that takes place in school, but much of human learning occurs outside the classroom, and people continue to learn throughout their lives.Even before they enter school, young children learn to walk, to talk, and to use their hands to manipulate toys, food, and other objects. They use all of their senses to learn about the sights, sounds, tastes, and smells in their environments. They learn how to interact with their parents, siblings,  friends, and other people important to their world. When they enter school, children learn basic academic subjects such as reading, writing, and mathematics. They also continue to learn a great deal outside the classroom. They learn which behaviors are likely to be rewarded and which are likely to  be punished. They learn social skills for interacting with other children. After they finish school, people must learn to adapt to the many major changes that affect their lives, such as getting married, raising children, and finding and keeping a job.Because learning continues throughout our lives and affects almost everything we do, the study of learning is important in many different fields. Teachers need to understand the best ways to educate children. Psychologists, social workers, criminologists, and other human-service workers need to understand how certain experiences change people’s behaviors. Employers, politicians,  and advertisers make use of the principles of learning to influence the behavior of workers, voters, and consumers.Learning is closely related to memory, which is the storage of information  in  the  brain.  Psychologists who study memory are interested in how the brain stores knowledge, where this storage takes place, and how the brain later retrieves knowledge when we need it. In contrast, psychologists who study learning are more interested in behavior and how behavior changes as a result  of  a person’s experiences.There are many forms of learning, ranging from simple to complex. Simple forms  of  learning  involve a single stimulus. A stimulus is anything perceptible to the senses, such as a sight, sound, smell, touch, or taste. In a form of learning known as classical conditioning, people learn to associate two stimuli that occur in sequence, such as lightning followed by thunder. In operant conditioning, people learn by forming an association between a behavior and its consequences (reward or punishment). People and animals can also learn by observation - that is, by watching others perform behaviors. More complex forms of learning include learning languages, concepts, and motor skills. Which of the following can be inferred about the learning process from the passage?

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Read the following passage and mark the letter A, B , C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.Speech is one of the most important (13) ______ communicating. It consists of far more than just making noises. To talk and also to (14) ______ by other people, we have to speak a language, that is, we have to use combinations of (15) ______ that everyone agrees to stand for a particular object or idea. Communication would be impossible if everyone made up their own language.Learning a language properly is very (16)______ . The basic (17) ______ of English is not very large, and not only about 2,000 words are needed to speak it quite (18)______. But the more idea you can (19) ______ the more precise you can be about their exact meaning.Words are the (20) ______ thing we use in communicating what we want to say. The way we (21)______ the words is also very important. Our tone of voice can express many emotions and (22) ______ whether we are pleasedor angry, for instanceĐiền vào ô 15

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Cho hình vẽ mô tả thí nghiệm điều chế HNO3 trong phòng thí nghiệm như sau:Hình. Điều chế HNO3 trong phòng thí nghiệmPhát biểu không đúng về quá trình điều chế là

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