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Kỳ thi thử thpt quốc gia lần 1 năm 2019 môn Tiếng Anh cực hay có lời giải(Đề 19)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questionsThe raw materials present in sugar beet________make sugar.

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate thecorrect word or phrase that best fits each of the numbered blanks.Back in the 1960s and 1970s, the world was becoming more aware of the destructive effects of industry (23)__________the environment and people were starting to think seriously about ways of protecting the environment. One man who was particularly affected by this subject was Gerard Morgan-Grenville. As Morgan-Grenville travelled round earning his living as a gardener, he noticed signs of the damage that was being done to the countryside around him. It wasn't long before Morgan-Grenville decided that he had to do something about this situation. He felt that if people could be shown a better way of living then maybe they would be interested enough to try to protect their (24)__________environment.Mr. Morgan-Grenville decided to set up a project (25)__________would prove what was happening to our surroundings and what could be done about it. So, in 1975, Morgan-Grenville created the Centre for Alternative Technology (CAT) in a village in Wales.The main aim of CAT is to search for an ecologically better way of living by using technology which (26)__________no harm to the environment. One of the most important things CAT did initially was to explore and demonstrate a wide range of techniques and to point out which ones had the least destructive results on the world around us. (27) __________CAT provides information and advice to people all over Britain and all over the world. If more and more individuals are informed about how much damage our modern lifestyle is causing to the planet, maybe more of them would be prepared to look for practical solutions to environmental problems.Điền vào ô 27

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 20)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questionsOnly their own mother can tell Simon and Mike apart.

Tiếng Anh Tốt nghiệp THPT
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Kỳ thi thử thpt quốc gia lần 1 năm 2019 môn Tiếng Anh cực hay có lời giải(Đề 19)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questionsDon’t_________until tomorrow what you can do today.

Tiếng Anh Tốt nghiệp THPT
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ĐỀ 1

Read the following passage and mark the letter A, B, C, D on our answer sheet to indicate the correct answer to each of the questions In the explosion of the linguistic life cycle, it is apparent that it is much more difficult to learn a second language in adulthood than a first language in childhood. Most adults never completely master a foreign language, especially in Phonology – hence the ubiquitous foreign accent. Their development often “fossilizes” into permanent error patterns that no teaching or correction can undo. Of course, there are great individual differences, which depend on effort, attitudes, amount of exposure, quality of teaching and plain talent, but there seems to be a cap for the best adults in the best circumstancesMany explanations have been advanced for children’s superiority; they exploit Motherese (the simplified, repetitive conversation between parents and children), make errors unself-consciously, are more motivated to communicate, like to conform, are not set in their ways, and have not first language to interfere. But some of these accounts are unlikely, based on what is known about how language acquisition works. Recent evidence is calling these social and motivation explanations into doubt. Holding every other factor constant, a key factor stands out: sheer ageSystematic evidence comes from the psychologist Elissa Newport and her colleagues. They tested Korean and Chinese – born students at the University of Illinois who had spent a least ten years in the United States. The immigrants were give a list of 276 simple English sentences, half of them containing some grammatical error. The immigrants who came to the United States between the age of 3 and 7 performed identically to American – born students. Those who arrived between ages 8 and 15 did worse the latter they arrived, and those who arrived between 17 and 39 did the worst of all, and showed huge variability unrelated to their age of arrival The word “who” in paragraph 3 refers to _____

Tiếng Anh Tốt nghiệp THPT
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224 Bài tập ancol- phenol cực hay có đáp án (phần 6)

Số chất ứng với công thức phân tử C7H8O (là dẫn xuất của benzen) đều tác dụng được với dung dịch NaOH là

Hóa học Lớp 11
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Bài 5: Góc có đỉnh ở bên trong đường tròn. Góc có đỉnh ở bên ngoài đường tròn

Qua điểm S nằm bên ngoài đường tròn (O), vẽ tiếp tuyến SA và cát tuyến SBC của đường tròn . Tia phân giác của góc BAC cắt dây BC tại D. Chứng minh SA = SD.

Toán Lớp 9
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Bài tập về Este - Lipit cực hay có lời giải chi tiết (P5)

Thủy phân hoàn toàn triglixerit X sau phản ứng thu được axit oleic (C17H33COOH) và axit linoleic (C17H31COOH). Nếu đốt cháy hoàn toàn m gam X cần 76,32 gam oxi thu được 75,24 gam CO2. Mặt khác, m gam X tác dụng vừa đủ với V ml dung dịch Br2 1M trong dung môi CCl4. Giá trị của V là

Hóa học Lớp 12
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Kỳ thi thử thpt quốc gia lần 1 năm 2019 môn Tiếng Anh cực hay có lời giải(Đề 19)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questionsRaising and selling cut flowers and_______potted plants is a large industry.

Tiếng Anh Tốt nghiệp THPT
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ĐỀ 1

Read the following passage and mark the letter A, B, C, D on our answer sheet to indicate the correct answer to each of the questions In the explosion of the linguistic life cycle, it is apparent that it is much more difficult to learn a second language in adulthood than a first language in childhood. Most adults never completely master a foreign language, especially in Phonology – hence the ubiquitous foreign accent. Their development often “fossilizes” into permanent error patterns that no teaching or correction can undo. Of course, there are great individual differences, which depend on effort, attitudes, amount of exposure, quality of teaching and plain talent, but there seems to be a cap for the best adults in the best circumstancesMany explanations have been advanced for children’s superiority; they exploit Motherese (the simplified, repetitive conversation between parents and children), make errors unself-consciously, are more motivated to communicate, like to conform, are not set in their ways, and have not first language to interfere. But some of these accounts are unlikely, based on what is known about how language acquisition works. Recent evidence is calling these social and motivation explanations into doubt. Holding every other factor constant, a key factor stands out: sheer ageSystematic evidence comes from the psychologist Elissa Newport and her colleagues. They tested Korean and Chinese – born students at the University of Illinois who had spent a least ten years in the United States. The immigrants were give a list of 276 simple English sentences, half of them containing some grammatical error. The immigrants who came to the United States between the age of 3 and 7 performed identically to American – born students. Those who arrived between ages 8 and 15 did worse the latter they arrived, and those who arrived between 17 and 39 did the worst of all, and showed huge variability unrelated to their age of arrival In the experiment in the passage, the Psychologists discovered _____

Tiếng Anh Tốt nghiệp THPT
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Kỳ thi thử thpt quốc gia lần 1 năm 2019 môn Tiếng Anh cực hay có lời giải(Đề 19)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questionsNondurable goods________immediate use and are often less expensive than durable goods.

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate thecorrect word or phrase that best fits each of the numbered blanks.Back in the 1960s and 1970s, the world was becoming more aware of the destructive effects of industry (23)__________the environment and people were starting to think seriously about ways of protecting the environment. One man who was particularly affected by this subject was Gerard Morgan-Grenville. As Morgan-Grenville travelled round earning his living as a gardener, he noticed signs of the damage that was being done to the countryside around him. It wasn't long before Morgan-Grenville decided that he had to do something about this situation. He felt that if people could be shown a better way of living then maybe they would be interested enough to try to protect their (24)__________environment.Mr. Morgan-Grenville decided to set up a project (25)__________would prove what was happening to our surroundings and what could be done about it. So, in 1975, Morgan-Grenville created the Centre for Alternative Technology (CAT) in a village in Wales.The main aim of CAT is to search for an ecologically better way of living by using technology which (26)__________no harm to the environment. One of the most important things CAT did initially was to explore and demonstrate a wide range of techniques and to point out which ones had the least destructive results on the world around us. (27) __________CAT provides information and advice to people all over Britain and all over the world. If more and more individuals are informed about how much damage our modern lifestyle is causing to the planet, maybe more of them would be prepared to look for practical solutions to environmental problems.Điền vào ô 26

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate thecorrect word or phrase that best fits each of the numbered blanks.Back in the 1960s and 1970s, the world was becoming more aware of the destructive effects of industry (23)__________the environment and people were starting to think seriously about ways of protecting the environment. One man who was particularly affected by this subject was Gerard Morgan-Grenville. As Morgan-Grenville travelled round earning his living as a gardener, he noticed signs of the damage that was being done to the countryside around him. It wasn't long before Morgan-Grenville decided that he had to do something about this situation. He felt that if people could be shown a better way of living then maybe they would be interested enough to try to protect their (24)__________environment.Mr. Morgan-Grenville decided to set up a project (25)__________would prove what was happening to our surroundings and what could be done about it. So, in 1975, Morgan-Grenville created the Centre for Alternative Technology (CAT) in a village in Wales.The main aim of CAT is to search for an ecologically better way of living by using technology which (26)__________no harm to the environment. One of the most important things CAT did initially was to explore and demonstrate a wide range of techniques and to point out which ones had the least destructive results on the world around us. (27) __________CAT provides information and advice to people all over Britain and all over the world. If more and more individuals are informed about how much damage our modern lifestyle is causing to the planet, maybe more of them would be prepared to look for practical solutions to environmental problems.Điền vào ô 25

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate thecorrect word or phrase that best fits each of the numbered blanks.Back in the 1960s and 1970s, the world was becoming more aware of the destructive effects of industry (23)__________the environment and people were starting to think seriously about ways of protecting the environment. One man who was particularly affected by this subject was Gerard Morgan-Grenville. As Morgan-Grenville travelled round earning his living as a gardener, he noticed signs of the damage that was being done to the countryside around him. It wasn't long before Morgan-Grenville decided that he had to do something about this situation. He felt that if people could be shown a better way of living then maybe they would be interested enough to try to protect their (24)__________environment.Mr. Morgan-Grenville decided to set up a project (25)__________would prove what was happening to our surroundings and what could be done about it. So, in 1975, Morgan-Grenville created the Centre for Alternative Technology (CAT) in a village in Wales.The main aim of CAT is to search for an ecologically better way of living by using technology which (26)__________no harm to the environment. One of the most important things CAT did initially was to explore and demonstrate a wide range of techniques and to point out which ones had the least destructive results on the world around us. (27) __________CAT provides information and advice to people all over Britain and all over the world. If more and more individuals are informed about how much damage our modern lifestyle is causing to the planet, maybe more of them would be prepared to look for practical solutions to environmental problems.Điền vào ô 24

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate thecorrect word or phrase that best fits each of the numbered blanks.Back in the 1960s and 1970s, the world was becoming more aware of the destructive effects of industry (23)__________the environment and people were starting to think seriously about ways of protecting the environment. One man who was particularly affected by this subject was Gerard Morgan-Grenville. As Morgan-Grenville travelled round earning his living as a gardener, he noticed signs of the damage that was being done to the countryside around him. It wasn't long before Morgan-Grenville decided that he had to do something about this situation. He felt that if people could be shown a better way of living then maybe they would be interested enough to try to protect their (24)__________environment.Mr. Morgan-Grenville decided to set up a project (25)__________would prove what was happening to our surroundings and what could be done about it. So, in 1975, Morgan-Grenville created the Centre for Alternative Technology (CAT) in a village in Wales.The main aim of CAT is to search for an ecologically better way of living by using technology which (26)__________no harm to the environment. One of the most important things CAT did initially was to explore and demonstrate a wide range of techniques and to point out which ones had the least destructive results on the world around us. (27) __________CAT provides information and advice to people all over Britain and all over the world. If more and more individuals are informed about how much damage our modern lifestyle is causing to the planet, maybe more of them would be prepared to look for practical solutions to environmental problems.Điền vào ô 23

Tiếng Anh Tốt nghiệp THPT
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Kỳ thi thử thpt quốc gia lần 1 năm 2019 môn Tiếng Anh cực hay có lời giải(Đề 19)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questionsWhat a beautiful skirt you are wearing! It matches your blouse. James: __________. My sister bought it for me last month

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 11)

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

Today, the old couple has their family and friends_______ their golden wedding anniversary

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

Vietnamese students are forced to take _______ entrance examination before being admitted to _______ college or university.

Tiếng Anh Tốt nghiệp THPT
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224 Bài tập ancol- phenol cực hay có đáp án (phần 6)

Có các phát biểu sau đây: 1.C2H5OH và C6H5OH đều phản ứng dễ dàng với HBr.2. C2H5OH có tính axit yếu hơn C6H5OH.3. C2H5ONa và C6H5ONa phản ứng hoàn toàn với nước cho ra trở lại C2H5OH và C6H5OH.Chọn phát biểu sai:

Hóa học Lớp 11
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 19)

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.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.Question:With which of the following statements would the author be most likely to agree?

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

They have just set off. They _______ on their way there.

Tiếng Anh Tốt nghiệp THPT
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20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 05)

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.Lakes occupy less than two percent of the Earth’s surface, yet they help sustain life.

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

He is a good team leader who always acts _______ in case of emergency.

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 19)

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.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.Question:The author mentions all of the following as examples of the effect of humans on the world’s ecosystems EXCEPT

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 11)

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

The interviewer asked me what experience _______for the job.

Tiếng Anh Tốt nghiệp THPT
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Bài tập về Este - Lipit cực hay có lời giải chi tiết (P5)

Đốt cháy hoàn toàn m gam hỗn hợp X gồm 2 este đồng phân cần dùng 4,704 lít khí O2, thu được 4,032 lít CO2 và 3,24 gam H2O. Nếu cho m gam X tác dụng hết với 110 ml dung dịch KOH 1M. Cô cạn dung dịch sau phản ứng thì thu được 7,98 gam chất rắn khan, trong đó có a mol muối Y và b mol muối Z MY>MZ. Các thể tích khí đều đo ở điều kiện chuẩn. Tỉ lệ a :

Hóa học Lớp 12
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

My aunt gave me a _______ hat on my 16th birthday.

Tiếng Anh Tốt nghiệp THPT
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224 Bài tập ancol- phenol cực hay có đáp án (phần 6)

Chất 1-brom-2,4-đimetylheptađien-2,5 có số đồng phân cis, trans là

Hóa học Lớp 11
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20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 05)

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.His career in the illicit drug trade ended with the police raid this morning.

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 19)

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.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.Question:The word “jolting” is closest in meaning to

Tiếng Anh Tốt nghiệp THPT
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

Most people believe that school days are the _______ days of their life.

Tiếng Anh Tốt nghiệp THPT
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20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 05)

Mark the letter A, B, C, or D on your answer sheet to indicate the word CLOSEST in meaning to the underlined word in each of the following questions.A lack of qualifications can be a major obstacle to finding a job.

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224 Bài tập ancol- phenol cực hay có đáp án (phần 6)

Một rượu no đa chức A có số nguyên tử cacbon bằng số nguyên tử oxi. Tỉ khối hơi của A so với hiđro bằng 46. Công thức cấu tạo rượu A là:

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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

We have just visited disadvantaged children in an orphanage _______ in Bac Ninh Province

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20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 05)

Mark the letter A, B, C, or D on your answer sheet to indicate the word CLOSEST in meaning to the underlined word in each of the following questions.In astronomy, a scale of magnitude from one to six denotes the brightness of a star

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 19)

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.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.Question:The author mentions the extinction of the dinosaurs in the 2nd paragraph to emphasize that

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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

Peter has a separate room for his musical _______.

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20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 05)

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. Host: “I’m terribly sorry for this inconvenience.”          Guests: -"_______"

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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

She didn’t enjoy her first year at college because she failed to _______ her new friends.

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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

Arranging flowers_______ among my mother’s hobbies.

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20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 05)

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchangesLaura: “I’ve got two tickets for the exhibition.”               -  Mary: “______”

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 19)

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.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.Question:The word “critical” is closest in meaning to

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20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 05)

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 As heart disease continues to be the number-one killer in the United States, researchers have become increasingly interested in identifying the potential risk factors that trigger heart attacks. High-fat diets and "life in the fast lane" have long been known to contribute to the high incidence of heart failure. But according to new studies, the list of risk factors may be significantly longer and quite surprising. Heart failure, for example, appears to have seasonal and temporal patterns. A higher percentage of heart attacks occur in cold weather, and more people experience heart failure on Monday than on any other day of the week. In addition, people are more susceptible to heart attacks in the first few hours after waking. Cardiologists first observed this morning phenomenon in the mid-1980, and have since discovered a number of possible causes. An early-morning rise in blood pressure, heart rate, and concentration of heart stimulating hormones, plus a reduction of blood flow to the heart, may all contribute to the higher incidence of heart attacks between the hours of 8:00 A.M. and 10:00 A.M. In other studies, both birthdays and bachelorhood have been implicated as risk factors. Statistics reveal that heart attack rates increase significantly for both females and males in the few days immediately preceding and following their birthdays. And unmarried men are more at risk for heart attacks than their married counterparts. Though stress is thought to be linked in some way to all of the aforementioned risk factors, intense research continues in the hope of further comprehending why and how heart failure is triggered. What does the passage mainly discuss?

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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 12)

On hearing that she failed the entrance exam, Trang couldn’t help _______ into tears.

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 19)

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.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.Question:What does the passage mainly discuss?

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20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 05)

The school was closed for a month because of serious ………… of fever.

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Bài 1: Điện tích.Định luật Cu-lông

Kết luận nào sau đây là sai?

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224 Bài tập ancol- phenol cực hay có đáp án (phần 6)

Có thể phân biệt thuận tiện và nhanh chóng rượu bậc 1, rượu bậc 2, rượu bậc 3 bằng chất nào  sau đây ?

Hóa học Lớp 11
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