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20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (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 questions from 36 to 42.            The countryside of Britain is well known for its beauty and many contrasts: it bare mountains and moorland, its lakes, rivers and woods, and its long, often wild coastline. Many of the most beautiful areas are national parks and are protected from development. When Britain people think of the countryside they think of farmland, as well as open spaces. They imagined cows or sheep in greenfield enclosed by hedges or stone walls and field of wheat and barley. Most farmland is privately owned but is crossed by a network of public footpaths.          Many people associate the countryside with peace and relaxation. They spend their free time walking or cycling there, or go to the country for a picnic or a pub lunch. In summer people go to fruit farms and pick strawberries and other fruit. Only a few people who live in the country work on farms. Many commute to work in towns. Many others dream of living in the country, where they believe they would have a better and healthier lifestyle.          The countryside faces many threats. Some are associated with modern farming practices, and the use of chemical harmful to plants and wildlife. Land is also needed for new houses. The green belt, an area of land around many cities, is under increasing pressure. Plans to build new roads are strongly opposed by organizations trying to protect the countryside. Protesters set up camps to prevent, or at least delay the building work.          America has many areas of wild and beautiful scenery, and there are many areas, especially in the West in States like Montana and Wyoming, where few people living. In the New England states, such as Vermont and New Hampshire, it is common to see small farm surrounded by hills and green areas. In Ohio, Indianan, Illinoisan and other Midwestern states, field of corns or wheat reach to the horizon and there are many miles between towns.          Only about 20% of Americans live outside cities and towns. Life may be difficult for people who live in the country. Services like hospitals and schools may be further away and going shopping can mean driving long distances. Some people even have to drive from their homes to the main road where their mail is left in a box. In spite of the disadvantages, many people who live in the country say that they like the safe, clean, attractive environment. But their children often move to a town or city as soon as they canWhat does the word “they” in paragraph 2 refers to______?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 438 lượt xem 6 năm trước
Bài 5: Góc có đỉnh ở bên trong đường tròn. Góc có đỉnh ở bên ngoài đường tròn

Cho đường tròn (O) và hai dây AB, AC. Gọi M, N lần lượt là điểm chính giữa của cung AB và cung AC. Đường thẳng MN cắt dây AB tại E và cắt dây AC tại H. Chứng minh tam giác AEH là tam giác cân.

Toán Lớp 9
Xem chi tiết 18 K lượt xem 1 năm trước
Bài 5: Xác suất của biến cố

Có hai hộp chứa các quả cầu. Hộp thứ nhất chứa 6 quả trắng, 4 quả đen. Hộp thứ hai chứa 4 quả trắng, 6 quả đen. Từ mỗi hộp lấy ngẫu nhiên một quả. Kí hiệu:A là biến cố: "Qủa lấy từ hộp thứ nhất trắng"B là biến cố: "Qủa lấy từ hộp thứ hai trắng"a. Xem xét A và B có độc lập không?b. Tính xác suất sao cho hai quả cầu lấy ra cùng màu.c. Tính xác suất sao cho hai quả cầu lấy ra khác màu.

Toán Lớp 11
Xem chi tiết 24.1 K lượt xem 1 năm trước
15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 11)

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.Political and family values within society have impacted upon the modern family structure. Traditionally, it has been the man’s role to be the breadwinner for the family- providing the funds to pay for food and shelter.However, due to the many new and unique responsibilities placed upon families, in numerous cases both men and women- fathers and mothers- have had to enter the workforce. Generally, the reasons for both being involved in the workforce revolve around the need to add to the family’s current financial base. To a lesser extent, the need to interact with “adults” in a stimulating work environment is another popular reason. Whatever their reasons, for many families, the decision for father and mother to go out of home and join the labour force has led to a number of side effects within the home which, in turn, impact upon their performance as employees.Many researchers agree that attitudes towards work are carried over into family life. This spillover can be positive or negative. Positive spillover refers to the spread of satisfaction and positive stimulation at work resulting in high levels of energy and satisfaction at home. If the amount of research is to be taken as an indication, it would seem that positive spillover is not a dominant occurrence in the workplace with most research focusing on the effects of negative spillover. Often pointing out the incompatible nature of work and family life, the research focuses on problems and conflict at work which has the effect of draining and preoccupying the individual, making it difficult for him or her to participate fully in family life.Social scientists have devised a number of theories in an attempt to explain the work-family dynamic. Compensation theory is one which has been widely used. It assumes that the relationship between work and family is negative by pointing out that high involvement in one sphere- invariably the work sphere- leads to low involvement in the other. As an individual advances within a career, demands typically fluctuate from moderate to more demanding and if the advancing worker has younger children, this shift in work responsibilities will usually manifest itself in the form of less time spent with the family. Researchers subscribing to this theory point out that the drain on family time is significantly related to work-family conflict with an escalation in conflict, as the number of families increase. What is the main focus of this passage?

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 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 questions from 36 to 42.            The countryside of Britain is well known for its beauty and many contrasts: it bare mountains and moorland, its lakes, rivers and woods, and its long, often wild coastline. Many of the most beautiful areas are national parks and are protected from development. When Britain people think of the countryside they think of farmland, as well as open spaces. They imagined cows or sheep in greenfield enclosed by hedges or stone walls and field of wheat and barley. Most farmland is privately owned but is crossed by a network of public footpaths.          Many people associate the countryside with peace and relaxation. They spend their free time walking or cycling there, or go to the country for a picnic or a pub lunch. In summer people go to fruit farms and pick strawberries and other fruit. Only a few people who live in the country work on farms. Many commute to work in towns. Many others dream of living in the country, where they believe they would have a better and healthier lifestyle.          The countryside faces many threats. Some are associated with modern farming practices, and the use of chemical harmful to plants and wildlife. Land is also needed for new houses. The green belt, an area of land around many cities, is under increasing pressure. Plans to build new roads are strongly opposed by organizations trying to protect the countryside. Protesters set up camps to prevent, or at least delay the building work.          America has many areas of wild and beautiful scenery, and there are many areas, especially in the West in States like Montana and Wyoming, where few people living. In the New England states, such as Vermont and New Hampshire, it is common to see small farm surrounded by hills and green areas. In Ohio, Indianan, Illinoisan and other Midwestern states, field of corns or wheat reach to the horizon and there are many miles between towns.          Only about 20% of Americans live outside cities and towns. Life may be difficult for people who live in the country. Services like hospitals and schools may be further away and going shopping can mean driving long distances. Some people even have to drive from their homes to the main road where their mail is left in a box. In spite of the disadvantages, many people who live in the country say that they like the safe, clean, attractive environment. But their children often move to a town or city as soon as they canWhich is NOT mentioned as an activity of relaxation in the countryside of Britain?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 619 lượt xem 10 tháng trước
20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 12)

Ở lúa, A quy định hạt gạo đục trội hoàn toàn so với a quy định hạt gạo trong; B quy định chín sớm trội hoàn toàn so với b quy định chín muộn. Cho cây dị hợp về 2 cặp gen nói trên tự thụ phấn, đời con có 4 loại kiểu hình, trong đó cây hạt gạo trong, chín muộn chiếm tỉ lệ 4%. Cho các kết luận sau:(1) Ở đời con, cây mang 2 tính trạng trội chiếm tỉ lệ 36%.(2) Đã có hoán vị gen với tần số 40%.(3) Ở đời con, cây hạt gạo đục, chín muộn có tỉ lệ 21%.(4)  Cây bố mẹ có kiểu gen AbaB.Số kết luận đúng là:

Sinh học Tốt nghiệp THPT
Xem chi tiết 4.6 K lượt xem 6 năm trước
15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 15)

You looked exhausted. I think you’ve ______ more than you can handle.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 401 lượt xem 6 năm trước
15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 15)

Pesticide residues in fruit and vegetable can be ______ to health.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 365 lượt xem 6 năm trước
Bộ đề luyện thi Hóa Học cực hay có lời giải chi tiết (Đề số 12)

Polime nào sau đây được dùng làm chất dẻo?

Hóa học Tốt nghiệp THPT
Xem chi tiết 1.8 K lượt xem 6 năm trước
Bài 5: Xác suất của biến cố

Hai bạn nam và hai bạn nữ được xếp ngồi ngẫu nhiên vào bốn ghế xếp thành hai dãy đối diện nhau. Tính xác suất sao cho:a. Nam, nữ ngồi đối diện nhau.b. Nữ ngồi đối diện nhau.

Toán Lớp 11
Xem chi tiết 31.5 K lượt xem 1 năm trước
ĐỀ 1

Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to each of the following questions.“Your dress is lovely. I like it” “______”

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 6.5 K lượt xem 6 năm trước
15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 11)

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.Lead poisoning in children is a major health concern. Both low and high doses of paint can have serious effects. Children exposed to high doses of lead often suffer permanent nerve damage, mental retardation, blindness, and even death. Low doses of lead can lead to mild mental retardation, short attention spans, distractibility, poor academic performance, and behavioral problems.This is not a new concern. As early as 1904, lead poisoning in children was linked to lead- based paint. Microscopic lead particles from paint are absorbed into the bloodstream when children ingest flakes of chipped paint, plaster, or paint dust from sanding. Lead can also enter the body through household dust, nailbiting, thumb sucking, or chewing on toys and other objects painted with lead-based paint. Although American paint companies today must comply with strict regulations regarding the amount of lead used in their paint, this source of lead poisoning is still the most common and most dangerous. Children living in older, dilapidated houses are particularly at risk. What does the author imply in the final sentence of the passage?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 316 lượt xem 6 năm trước
224 Bài tập ancol- phenol cực hay có đáp án (phần 6)

Chất hữu cơ X có chứa vòng benzen và có công thức phân tử là C8H10O. X có khả năng tác dụng với NaOH. Số CTCT của X là:

Hóa học Lớp 11
Xem chi tiết 1 K lượt xem 6 năm trước
Bài 5: Xác suất của biến cố

Từ cỗ bài tú lơ khơ 52 con, rút ngẫu nhiên cùng một lúc bốn con. Tính xác suất sao cho:a. Cả bốn con đều là át.b. Được ít nhất là một con át.c. Được hai con át và hai con K

Toán Lớp 11
Xem chi tiết 119.9 K lượt xem 1 năm trước
15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 15)

Your brother hardly talks to anyone, ______?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 491 lượt xem 6 năm trước
20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (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 questions from 36 to 42.            The countryside of Britain is well known for its beauty and many contrasts: it bare mountains and moorland, its lakes, rivers and woods, and its long, often wild coastline. Many of the most beautiful areas are national parks and are protected from development. When Britain people think of the countryside they think of farmland, as well as open spaces. They imagined cows or sheep in greenfield enclosed by hedges or stone walls and field of wheat and barley. Most farmland is privately owned but is crossed by a network of public footpaths.          Many people associate the countryside with peace and relaxation. They spend their free time walking or cycling there, or go to the country for a picnic or a pub lunch. In summer people go to fruit farms and pick strawberries and other fruit. Only a few people who live in the country work on farms. Many commute to work in towns. Many others dream of living in the country, where they believe they would have a better and healthier lifestyle.          The countryside faces many threats. Some are associated with modern farming practices, and the use of chemical harmful to plants and wildlife. Land is also needed for new houses. The green belt, an area of land around many cities, is under increasing pressure. Plans to build new roads are strongly opposed by organizations trying to protect the countryside. Protesters set up camps to prevent, or at least delay the building work.          America has many areas of wild and beautiful scenery, and there are many areas, especially in the West in States like Montana and Wyoming, where few people living. In the New England states, such as Vermont and New Hampshire, it is common to see small farm surrounded by hills and green areas. In Ohio, Indianan, Illinoisan and other Midwestern states, field of corns or wheat reach to the horizon and there are many miles between towns.          Only about 20% of Americans live outside cities and towns. Life may be difficult for people who live in the country. Services like hospitals and schools may be further away and going shopping can mean driving long distances. Some people even have to drive from their homes to the main road where their mail is left in a box. In spite of the disadvantages, many people who live in the country say that they like the safe, clean, attractive environment. But their children often move to a town or city as soon as they canWe can see from the passage that in the countryside of Britain ______

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 5.8 K lượt xem 6 năm trước
Bài 5: Xác suất của biến cố

Gieo một con súc sắc cân đối và đồng nhất. giả sử con súc sắc xuất hiện mặt b chấm. Xét phương trình x2 + bx + 2 = 0. Tính xác suất sao cho:a. Phương trình có nghiệmb. Phương trình vô nghiệmc. Phương tring có nghiệm nguyên.

Toán Lớp 11
Xem chi tiết 21.2 K lượt xem 1 năm trước
ĐỀ 1

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions You have gone to the doctor’s to have a check-u. You ____. You just had your check-up last week

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1 K lượt xem 6 năm trước
15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 15)

Tom denied ______ part in the fighting at school.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 412 lượt xem 6 năm trước
20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 04)

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 from 31 to 35.           I had never been to Denmark before, so when I set out to catch the ferry in early May, I little suspected that by the end of the trip I'd have made such lasting friendships. Esjberg is a (31)_____ port for acyclist's arrival, where tourist information can be obtained and money changed. A cycle track leads out of town an down to Ribe, where I spent my first night. The only appointment I had to (32)_____ was a meeting with a friend who was flying out in June. I wanted to use my time well, so I had planned a route which would include several small islands and various parts of the countryside.          In my (33)_____, a person travelling alone sometimes meets with unexpected hospitality, and this trip was no exception. On only my second day, I got into conversation with a cheerful man who turned (34)_____ to be the local baker. He insisted that I should join his family for lunch, and, while we were eating, he contacted his daughter in Odense. Within minutes, he had arranged for me to visit her and her family. Then I was sent on my way with a fresh loaf of bread to keep me (35)_____, and the feeling that this would turn out to be a wonderful holidayĐiền ô số 35

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 356 lượt xem 6 năm trước
Bài 5: Xác suất của biến cố

Một người chọn ngẫu nhiên hai chiếc giày từ bốn đôi giày cỡ khác nhau. Tính xác suất để hai chiếc chọn được tạo thành một đôi.

Toán Lớp 11
Xem chi tiết 41.3 K lượt xem 1 năm trước
15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 11)

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.Lead poisoning in children is a major health concern. Both low and high doses of paint can have serious effects. Children exposed to high doses of lead often suffer permanent nerve damage, mental retardation, blindness, and even death. Low doses of lead can lead to mild mental retardation, short attention spans, distractibility, poor academic performance, and behavioral problems.This is not a new concern. As early as 1904, lead poisoning in children was linked to lead- based paint. Microscopic lead particles from paint are absorbed into the bloodstream when children ingest flakes of chipped paint, plaster, or paint dust from sanding. Lead can also enter the body through household dust, nailbiting, thumb sucking, or chewing on toys and other objects painted with lead-based paint. Although American paint companies today must comply with strict regulations regarding the amount of lead used in their paint, this source of lead poisoning is still the most common and most dangerous. Children living in older, dilapidated houses are particularly at risk. According to the passage, what is the most common source of lead poisoning in children?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.2 K lượt xem 6 năm trước
15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 11)

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.Lead poisoning in children is a major health concern. Both low and high doses of paint can have serious effects. Children exposed to high doses of lead often suffer permanent nerve damage, mental retardation, blindness, and even death. Low doses of lead can lead to mild mental retardation, short attention spans, distractibility, poor academic performance, and behavioral problems.This is not a new concern. As early as 1904, lead poisoning in children was linked to lead- based paint. Microscopic lead particles from paint are absorbed into the bloodstream when children ingest flakes of chipped paint, plaster, or paint dust from sanding. Lead can also enter the body through household dust, nailbiting, thumb sucking, or chewing on toys and other objects painted with lead-based paint. Although American paint companies today must comply with strict regulations regarding the amount of lead used in their paint, this source of lead poisoning is still the most common and most dangerous. Children living in older, dilapidated houses are particularly at risk. The word "dilapidated" is closest in meaning to which of the following?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 310 lượt xem 6 năm trước
Bài 5: Góc có đỉnh ở bên trong đường tròn. Góc có đỉnh ở bên ngoài đường tròn

Hãy chứng minh định lí trênGợi ý: Sử dụng góc ngoài của tam giác trong ba trường hợp ở hình 36, 37, 38 ( các cung nêu ra dưới hình là những cung bị chắn).

Toán Lớp 9
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Tổng hợp đề thi thử THPT quốc gia môn tiếng anh có lời giải chi tiết (Đề số 10)

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 from 31 to 35.Many people enjoy lying in bed in the morning, but can you imagine having to spend 90 days in bed? Could you stand the boredom and the frustration of not being(31)..... to get up? That was the task that faced 14 volunteers when they started out on a bed-rest experiment being conducted (32)….. the European Space Agency.The study had a serious purpose: to investigate the changes that take place in the human body during long-duration spaceflight. Lying in a horizontal position was the best way of (33)…… weightlessness. The aim was to discover what effect period of weightlessness will have on the health of astronauts spending several months on the International Space Station.The volunteers ate their meals, took showers and underwent medical tests without ever sitting up. That's even tougher than it sounds, especially when you (34) ..…. that no visitors were permitted. However, each volunteer did have a mobile phone, as well as access to the latest films, computer games and music. Surprisingly, Everyone was in a good (35) ..…. at the end of the 90 days, 'I would do it again,' said one of the volunteers. 'It was disorientating, but we knew we were 'contributing to medical research and space exploration.Điền ô số 33

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 353 lượt xem 6 năm trước
20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 04)

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 from 31 to 35.           I had never been to Denmark before, so when I set out to catch the ferry in early May, I little suspected that by the end of the trip I'd have made such lasting friendships. Esjberg is a (31)_____ port for acyclist's arrival, where tourist information can be obtained and money changed. A cycle track leads out of town an down to Ribe, where I spent my first night. The only appointment I had to (32)_____ was a meeting with a friend who was flying out in June. I wanted to use my time well, so I had planned a route which would include several small islands and various parts of the countryside.          In my (33)_____, a person travelling alone sometimes meets with unexpected hospitality, and this trip was no exception. On only my second day, I got into conversation with a cheerful man who turned (34)_____ to be the local baker. He insisted that I should join his family for lunch, and, while we were eating, he contacted his daughter in Odense. Within minutes, he had arranged for me to visit her and her family. Then I was sent on my way with a fresh loaf of bread to keep me (35)_____, and the feeling that this would turn out to be a wonderful holidayĐiền ô số 34

Tiếng Anh Tốt nghiệp THPT
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Bài 5: Xác suất của biến cố

Có 4 tấm bìa được đánh số từ 1 đến 4. Rút ngẫu nhiên 3 tấm.a. Hãy mô tả không gian mẫu.b. Xác định các biến cố sau:A: "Tổng các số trên 3 tấm bìa bằng 8"B: "Các số trên 3 tấm bìa là ba số tự nhiên liên tiếp"c.Tính P(A), P(B).

Toán Lớp 11
Xem chi tiết 35.5 K lượt xem 1 năm trước
ĐỀ 1

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions  ____ the price is high, we can’t afford to buy a new car

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 22 K lượt xem 6 năm trước
15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 15)

The architects have made ______ use of glass and transparent plastic.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 396 lượt xem 6 năm trước
Bộ đề luyện thi Hóa Học cực hay có lời giải chi tiết (Đề số 12)

Cacbon không phản ứng được (khi đun nóng) với chất nào sau đây?

Hóa học Tốt nghiệp THPT
Xem chi tiết 415 lượt xem 6 năm trước
Bài 5: Xác suất của biến cố

Gieo ngẫu nhien một con súc sắc cân đối và đồng chất hai lần.a.Hãy mô tả không gian mẫu.b.Xác định các biến cố sau.A: "Tổng số chấm xuất hiện trong hai lần gieo không bé hơn 10"B: "Mặt 5 chấm xuất hiện ít nhất một lần".c.Tính P(A), P(B).

Toán Lớp 11
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 11)

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.Lead poisoning in children is a major health concern. Both low and high doses of paint can have serious effects. Children exposed to high doses of lead often suffer permanent nerve damage, mental retardation, blindness, and even death. Low doses of lead can lead to mild mental retardation, short attention spans, distractibility, poor academic performance, and behavioral problems.This is not a new concern. As early as 1904, lead poisoning in children was linked to lead- based paint. Microscopic lead particles from paint are absorbed into the bloodstream when children ingest flakes of chipped paint, plaster, or paint dust from sanding. Lead can also enter the body through household dust, nailbiting, thumb sucking, or chewing on toys and other objects painted with lead-based paint. Although American paint companies today must comply with strict regulations regarding the amount of lead used in their paint, this source of lead poisoning is still the most common and most dangerous. Children living in older, dilapidated houses are particularly at risk. The word "ingest" could best be replaced by which of the following?

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 11)

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.Lead poisoning in children is a major health concern. Both low and high doses of paint can have serious effects. Children exposed to high doses of lead often suffer permanent nerve damage, mental retardation, blindness, and even death. Low doses of lead can lead to mild mental retardation, short attention spans, distractibility, poor academic performance, and behavioral problems.This is not a new concern. As early as 1904, lead poisoning in children was linked to lead- based paint. Microscopic lead particles from paint are absorbed into the bloodstream when children ingest flakes of chipped paint, plaster, or paint dust from sanding. Lead can also enter the body through household dust, nailbiting, thumb sucking, or chewing on toys and other objects painted with lead-based paint. Although American paint companies today must comply with strict regulations regarding the amount of lead used in their paint, this source of lead poisoning is still the most common and most dangerous. Children living in older, dilapidated houses are particularly at risk. Which of the following does the passage infer? 

Tiếng Anh Tốt nghiệp THPT
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Bài 5: Góc có đỉnh ở bên trong đường tròn. Góc có đỉnh ở bên ngoài đường tròn

Hãy chứng minh định lý trên.Gợi ý: Xem hình 32. Sử dụng góc ngoài của tam giác, chứng minh:BEC^=sđBnC⏜+sđAmD⏜2

Toán Lớp 9
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15 Đề ôn thi thpt Quốc Gia môn Tiếng Anh có lời giải chi tiết (Đề số 15)

We truly respected our father and always ______ by his rule.

Tiếng Anh Tốt nghiệp THPT
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ĐỀ 1

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions The majority of people accept that modern drugs are the most effective way to cure a(n) ______

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 04)

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 from 31 to 35.           I had never been to Denmark before, so when I set out to catch the ferry in early May, I little suspected that by the end of the trip I'd have made such lasting friendships. Esjberg is a (31)_____ port for acyclist's arrival, where tourist information can be obtained and money changed. A cycle track leads out of town an down to Ribe, where I spent my first night. The only appointment I had to (32)_____ was a meeting with a friend who was flying out in June. I wanted to use my time well, so I had planned a route which would include several small islands and various parts of the countryside.          In my (33)_____, a person travelling alone sometimes meets with unexpected hospitality, and this trip was no exception. On only my second day, I got into conversation with a cheerful man who turned (34)_____ to be the local baker. He insisted that I should join his family for lunch, and, while we were eating, he contacted his daughter in Odense. Within minutes, he had arranged for me to visit her and her family. Then I was sent on my way with a fresh loaf of bread to keep me (35)_____, and the feeling that this would turn out to be a wonderful holidayĐiền ô số 33

Tiếng Anh Tốt nghiệp THPT
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Bài 5: Xác suất của biến cố

Chứng minh các tính chất a), b) và c).a) P∅= 0, PΩ = 1.b) 0 ≤ PA ≤ 1, với mọi biến cố A.c) Nếu A và B xung khắc, thìPA ∪ B = PA + PB (công thức cộng xác suất).

Toán Lớp 11
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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 12)

Trong số các hiện tượng dưới đây thì sẽ có bao nhiêu hiện tượng xảy ra nếu một quần xã sinh vật có độ đa dạng loài càng cao, mối quan hệ sinh thái càng chặt chẽ?1. Quần xã có cấu trúc càng ổn định vì có lưới thức ăn phức tạp, nhiều loài rộng thực.2. Quần xã dễ xảy ra diễn thế do tác động của nhiều loài trong quần xã làm cho môi trường thay đổi nhanh.3. Quần xã sẽ có cấu trúc ít ổn định vì số lượng lớn loài sẽ dẫn đến cạnh tranh nhau gay gắt.4. Quần xã có xu hướng biến đổi làm cho độ đa dạng thấp từ đó mối quan hệ sinh thái lỏng lẻo hơn do thức ăn trong môi trường cạn kiệt dần.

Sinh học 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 10)

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 from 31 to 35.Many people enjoy lying in bed in the morning, but can you imagine having to spend 90 days in bed? Could you stand the boredom and the frustration of not being(31)..... to get up? That was the task that faced 14 volunteers when they started out on a bed-rest experiment being conducted (32)….. the European Space Agency.The study had a serious purpose: to investigate the changes that take place in the human body during long-duration spaceflight. Lying in a horizontal position was the best way of (33)…… weightlessness. The aim was to discover what effect period of weightlessness will have on the health of astronauts spending several months on the International Space Station.The volunteers ate their meals, took showers and underwent medical tests without ever sitting up. That's even tougher than it sounds, especially when you (34) ..…. that no visitors were permitted. However, each volunteer did have a mobile phone, as well as access to the latest films, computer games and music. Surprisingly, Everyone was in a good (35) ..…. at the end of the 90 days, 'I would do it again,' said one of the volunteers. 'It was disorientating, but we knew we were 'contributing to medical research and space exploration.Điền ô số 32

Tiếng Anh Tốt nghiệp THPT
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Bộ đề luyện thi Hóa Học cực hay có lời giải chi tiết (Đề số 12)

Tiến hành trùng hợp 1,0 tấn etilen với hiệu suất phản ứng trùng hợp là 70%. Khối lượng polietilen thu được là

Hóa học Tốt nghiệp THPT
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20 Đề ôn thi Tiếng Anh chuẩn cấu trúc có lời giải chi tiết (Đề số 04)

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 from 31 to 35.           I had never been to Denmark before, so when I set out to catch the ferry in early May, I little suspected that by the end of the trip I'd have made such lasting friendships. Esjberg is a (31)_____ port for acyclist's arrival, where tourist information can be obtained and money changed. A cycle track leads out of town an down to Ribe, where I spent my first night. The only appointment I had to (32)_____ was a meeting with a friend who was flying out in June. I wanted to use my time well, so I had planned a route which would include several small islands and various parts of the countryside.          In my (33)_____, a person travelling alone sometimes meets with unexpected hospitality, and this trip was no exception. On only my second day, I got into conversation with a cheerful man who turned (34)_____ to be the local baker. He insisted that I should join his family for lunch, and, while we were eating, he contacted his daughter in Odense. Within minutes, he had arranged for me to visit her and her family. Then I was sent on my way with a fresh loaf of bread to keep me (35)_____, and the feeling that this would turn out to be a wonderful holidayĐiền ô số 32

Tiếng Anh Tốt nghiệp THPT
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ĐỀ 1

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions Liquid milk is usually pasteurized in order to kill bacteria for a longer ____

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 15)

The energy ______ from the sun is renewable and environmentally-friendly.

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 11)

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.Lead poisoning in children is a major health concern. Both low and high doses of paint can have serious effects. Children exposed to high doses of lead often suffer permanent nerve damage, mental retardation, blindness, and even death. Low doses of lead can lead to mild mental retardation, short attention spans, distractibility, poor academic performance, and behavioral problems.This is not a new concern. As early as 1904, lead poisoning in children was linked to lead- based paint. Microscopic lead particles from paint are absorbed into the bloodstream when children ingest flakes of chipped paint, plaster, or paint dust from sanding. Lead can also enter the body through household dust, nailbiting, thumb sucking, or chewing on toys and other objects painted with lead-based paint. Although American paint companies today must comply with strict regulations regarding the amount of lead used in their paint, this source of lead poisoning is still the most common and most dangerous. Children living in older, dilapidated houses are particularly at risk. The phrase "exposed to" in line 2 could best be replaced by which of the following?

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 11)

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.Lead poisoning in children is a major health concern. Both low and high doses of paint can have serious effects. Children exposed to high doses of lead often suffer permanent nerve damage, mental retardation, blindness, and even death. Low doses of lead can lead to mild mental retardation, short attention spans, distractibility, poor academic performance, and behavioral problems.This is not a new concern. As early as 1904, lead poisoning in children was linked to lead- based paint. Microscopic lead particles from paint are absorbed into the bloodstream when children ingest flakes of chipped paint, plaster, or paint dust from sanding. Lead can also enter the body through household dust, nailbiting, thumb sucking, or chewing on toys and other objects painted with lead-based paint. Although American paint companies today must comply with strict regulations regarding the amount of lead used in their paint, this source of lead poisoning is still the most common and most dangerous. Children living in older, dilapidated houses are particularly at risk. What is the main topic of the passage?

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 04)

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 from 31 to 35.           I had never been to Denmark before, so when I set out to catch the ferry in early May, I little suspected that by the end of the trip I'd have made such lasting friendships. Esjberg is a (31)_____ port for acyclist's arrival, where tourist information can be obtained and money changed. A cycle track leads out of town an down to Ribe, where I spent my first night. The only appointment I had to (32)_____ was a meeting with a friend who was flying out in June. I wanted to use my time well, so I had planned a route which would include several small islands and various parts of the countryside.          In my (33)_____, a person travelling alone sometimes meets with unexpected hospitality, and this trip was no exception. On only my second day, I got into conversation with a cheerful man who turned (34)_____ to be the local baker. He insisted that I should join his family for lunch, and, while we were eating, he contacted his daughter in Odense. Within minutes, he had arranged for me to visit her and her family. Then I was sent on my way with a fresh loaf of bread to keep me (35)_____, and the feeling that this would turn out to be a wonderful holidayĐiền ô số 31

Tiếng Anh Tốt nghiệp THPT
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Luyện tập trang 79-80

Trên bờ biển có một ngọn hải đăng cao 40m. Với khoảng cách bao nhiêu kilomet thì người quan sát trên tàu bắt đầu trông thấy ngọn đèn này, biết rằng mắt người quan sát ở độ cao 10m so với mực nước biển và bán kính Trái Đất gần bằng 6400km (h.30)?Hướng dẫn: Áp dụng kết quả của bài tập 34.

Toán Lớp 9
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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 12)

Ở ruồi giấm, alen A quy định thân xám trội hoàn toàn so với alen a quy định thân đen; alen B quy định cánh dài trội hoàn toàn so với alen b quy định cánh cụt; alen D quy định mắt đỏ trội hoàn toàn so với alen d quy định mắt trắng. Thực hiện phép lai P:  thu được F1. Trong tổng số các ruồi ở F1, ruồi thân xám, cánh dài, mắt đỏ chiếm tỉ lệ là 52,5%. Biết rằng không xảy ra đột biến, có bao nhiêu kết luận sau đây là đúng?(1) Khoảng cách giữa 2 gen A và B là 20 cm.(2) Ở F1, ruồi đực thân xám, cánh cụt, mắt đỏ chiếm tỉ lệ 1,25%.(3) Ở đời F1 có 28 kiểu gen về 3 cặp gen trên.(4) Ở đời F1, kiểu hình ruồi cái thân đen, cánh dài, mắt đỏ chiếm tỉ lệ 2,5%.

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

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.My parent’ warnings didn’t deter me from choosing the job of my dreams.

Tiếng Anh Tốt nghiệp THPT
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