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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 from 24 to 30.  Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of...
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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 from 24 to 30.

  Almost all living things ultimately get their energy from the sun. In a process called photosynthesis, plants, algae, and some other organisms capture the sun's energy and use it to make simple sugars such as glucose. Most other organisms use these organic molecules as a source of energy. Organic materials contain a tremendous amount of energy. As food, they fuel our bodies and those of most other creatures. In such forms as oil, gas, and coal, they heat our homes, run our factories and power our cars.

  Photosynthesis begins when solar energy is absorbed by chemicals called photosynthetic pigments that are contained within an organism. The most common photosynthetic pigment is chlorophyll. The bright green color characteristic of plants is caused by it. Most algae have additional pigments that may mask the green chlorophyll. Because of these pigments, algae may be not only green but brown, red, blue or even black.                       

  In a series of enzyme-controlled reactions, the solar energy captured by chlorophyll and other pigments is used to make simple sugars, with carbon dioxide and water as the raw materials. Carbon dioxide is one of very few carbon- containing molecules not considered to be organic compounds. Photosynthesis then converts carbon from an inorganic to an organic form. This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose. The glucose is then used to make other organic compounds. In addition, photosynthesis produces oxygen gas. All the oxygen gas on earth, both in the atmosphere we breathe and in the ocean, was produced by photosynthetic organisms. Photosynthesis constantly replenishes the earth's oxygen supply.

  Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They are called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs. Many organisms cannot produce their own food and must obtain energy by eating organic matter. These are called heterotrophs.

 

The phrase “this process” in the third paragraph refers to the process of__________.

A. storing chemical energy 

B. photosynthesis

C. absorbing solar energy 

D. carbon fixation 

1
14 tháng 12 2018

Chọn D

Câu đề bài: Cụm từ “quá trình này” trong đoạn ba đề cập đến quá trình của _________.

Đáp án D: sự cố định carbon

Các đáp án còn lại:

A. Lưu trữ năng lượng hóa học

B. Sự quang hợp

C. Hấp thụ năng lượng mặt trời

Thông tin trong bài:

This is called carbon fixation. In this process, the solar energy that was absorbed by chlorophyll is stored as chemical energy in the form of simple sugars like glucose.

Đây được gọi là cố định carbon. Trong quá trình này, năng lượng mặt trời được hấp thụ bởi chất diệp lục được lưu trữ dưới dạng năng lượng hóa học dưới dạng các loại đường đơn giản như glucose.

26 tháng 9 2019

Đáp án: D

Giải thích: Mấu chốt của câu này là các em phải đọc hết đoạn cuối để suy ra cái mà tác giả muốn hướng tới: Con người phải đối mặt với sự lựa chọn khó khăn: sự sống của mình hay cứu lấy động vật.

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   22  to  26A.   Read the passage carefully, then choose the correct answer.The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the...
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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   from   22  to  26

A.   Read the passage carefully, then choose the correct answer.

The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the fifteenth century. The ruins of Angkor are documented as same .of the mast impressive ones in the world, rivaling the pyramids of Giza in Egypt. Why this mighty civilization died out is a question that archeologists are now only beginning to ponder. The answer, it turns out, may be linked with the availability of fresh water.

One possible explanation far the downfall of the Khmer Empire has to do with the inhabitants' irrigation system. The temple and palaces of Angkor were constructed around a series of artificial reservoirs and canals which were annually flooded to capacity by the Mekong River. Once filled, they were used to irrigate the surrounding rice patties and farmland during the course of the year. Farmers were completely dependent upon the water for their crucial rice crop. Without consistent irrigation, the farmers would have been unable to maintain functional crop production.

Scientists speculate that toward the end of the Khmer Empire the hydraulic systems of the reservoirs and canals broke down. The construction of hundreds of sandstone temples and palaces required an enormous amount of physical labor. In addition, as the capital of the Khmer Empire, Angkor contained upwards of one hundred thousand people who resided in and around Angkor. In order to feed so many people, the local farmers were driven to grow food quicker and more efficiently. After centuries of continual use, the irrigation system was pushed beyond its capacity. Soil erosion, nutrient depletion, and the loss of water led to decrease in the food supply. With less food available, the people of Angkor slowly began to migrate to other parts of Cambodia thus leaving the marvelous city of Angkor to be swallowed by the jungle. Therefore, it is speculated that the Khmer Empire may have fallen victim to its own decrepit infrastructure.

22. What is the passage mainly about?

A. Modern day agricultural procedures in Cambodia.

B. A possible explanation for the, decline of a civilization.

C. The essential role water plays in farming.

D. Religious temples of the ancient Khmer Empire.

23. The passage preceding the passage most likely discusses ______.

A. architecture of ancient Asian civilization

B. religious practices of the people of Angkor

C. the form of government practiced by the Khmer Empire

D. the other six wonders of the world

24. According to the passage, Lake Tonle Sap in Cambodia ______.

A. is an enormous fresh body of water in Asia

B. was unable to supply enough fish for the people of Angkor

C. became polluted due to a population explosion

D. is one of the Seven Wonders of the World

25. Why does the author mention the hydraulic systems of the reservoirs?

A. They supplied irrigation from the Indian Ocean.

B. They became non-functional due to overuse.

C. They were destroyed by nearby warrior tribes.

D. They helped transport the sandstones for constructing temples.

26. It can be inferred from the passage that the inhabitants of the Khmer Empire ______.

A. were intentionally starved by the farmers

B. lost their food source due to excess rainfall

C. supplemented their diets with 'meat hunted in the nearby jungles

D. depended upon rice as their main source of food

27. All the following are mentioned as events that can affect food supply EXCEPT.

A. erosion of soil                                       B. contamination of soil

C. reduction of nutrients                            D. loss of water supply

 

2
16 tháng 4 2022

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   22  to  26

A.   Read the passage carefully, then choose the correct answer.

The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the fifteenth century. The ruins of Angkor are documented as same .of the mast impressive ones in the world, rivaling the pyramids of Giza in Egypt. Why this mighty civilization died out is a question that archeologists are now only beginning to ponder. The answer, it turns out, may be linked with the availability of fresh water.

One possible explanation far the downfall of the Khmer Empire has to do with the inhabitants' irrigation system. The temple and palaces of Angkor were constructed around a series of artificial reservoirs and canals which were annually flooded to capacity by the Mekong River. Once filled, they were used to irrigate the surrounding rice patties and farmland during the course of the year. Farmers were completely dependent upon the water for their crucial rice crop. Without consistent irrigation, the farmers would have been unable to maintain functional crop production.

Scientists speculate that toward the end of the Khmer Empire the hydraulic systems of the reservoirs and canals broke down. The construction of hundreds of sandstone temples and palaces required an enormous amount of physical labor. In addition, as the capital of the Khmer Empire, Angkor contained upwards of one hundred thousand people who resided in and around Angkor. In order to feed so many people, the local farmers were driven to grow food quicker and more efficiently. After centuries of continual use, the irrigation system was pushed beyond its capacity. Soil erosion, nutrient depletion, and the loss of water led to decrease in the food supply. With less food available, the people of Angkor slowly began to migrate to other parts of Cambodia thus leaving the marvelous city of Angkor to be swallowed by the jungle. Therefore, it is speculated that the Khmer Empire may have fallen victim to its own decrepit infrastructure.

22. What is the passage mainly about?

A. Modern day agricultural procedures in Cambodia.

B. A possible explanation for the, decline of a civilization.

C. The essential role water plays in farming.

D. Religious temples of the ancient Khmer Empire.

23. The passage preceding the passage most likely discusses ______.

A. architecture of ancient Asian civilization

B. religious practices of the people of Angkor

C. the form of government practiced by the Khmer Empire

D. the other six wonders of the world

24. According to the passage, Lake Tonle Sap in Cambodia ______.

A. is an enormous fresh body of water in Asia

B. was unable to supply enough fish for the people of Angkor

C. became polluted due to a population explosion

D. is one of the Seven Wonders of the World

25. Why does the author mention the hydraulic systems of the reservoirs?

A. They supplied irrigation from the Indian Ocean.

B. They became non-functional due to overuse.

C. They were destroyed by nearby warrior tribes.

D. They helped transport the sandstones for constructing temples.

26. It can be inferred from the passage that the inhabitants of the Khmer Empire ______.

A. were intentionally starved by the farmers

B. lost their food source due to excess rainfall

C. supplemented their diets with 'meat hunted in the nearby jungles

D. depended upon rice as their main source of food

27. All the following are mentioned as events that can affect food supply EXCEPT.

A. erosion of soil                                       B. contamination of soil

C. reduction of nutrients                            D. loss of water supply

16 tháng 4 2022

22-b 23-d 24-a 25-b 26-d 27-b

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 following questions from 1 to 5.     Most Americans look forward to their vacations. Most American employees receive an annual vacation with pay. It is traditional to use this time off for travel.    Travelling within the United States is very popular because foreign travel generally takes more time and money. However, those who want to travel outside the USA are free...
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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 following questions from 1 to 5.

     Most Americans look forward to their vacations. Most American employees receive an annual vacation with pay. It is traditional to use this time off for travel.

    Travelling within the United States is very popular because foreign travel generally takes more time and money. However, those who want to travel outside the USA are free to go almost everywhere. Obtaining a passport is not difficult. Every year about thirteen million people travel abroad. The most popular periods are during the Summer and the two-week retool break on Christmas and New Year holidays. These periods are so the most crowded and the most expensive time to travel, so people who can adjust their schedules sometimes choose to travel in the autumn.

    American tourists often travel by car. Most families own a car, and those who do not have a car can rent one. Cars are usually the most economical way to travel, especially for families. It is also fairly fast and convenient. Excellent highways with motels and restaurants nearby connect the nation's major cities. They enable tourists to travel at a speed of 55 to 66 miles an hour. Tourists that want to travel faster often fly to their destination and then rent a car when they get there.

Câu 1: According to the writer, most American employees traditionally use their annual vacations for

     A. jogging                       B. shopping                    C. travelling                  D. cycling

Câu 2: In the USA, to obtain a passport is ______.                           

     A. easy                             B. difficult                     C. expensive                 D. time consuming

Câu 3: There are many American people travelling ______.

     A. in the autumn                                                     B. on Thanksgiving

     C. on Christmas and New Year holidays               D. on Women's Day

Câu 4: How do American tourists often travel?                                

     A. By car                         B. By bicycle                 C. By bicycle                D. By plane

Câu 5: The word “They" in paragraph 3 refers to ______.

     A. restaurants                  B. highways                   C. motels                       D. major cities

1
17 tháng 10 2021

1 C

2 A

3 C

4 A

5 B

30 tháng 5 2019

Đáp án A

Refuse + to V = từ chối làm gì

Avoid + V-ing = tránh làm gì

Deny + V-ing = phủ nhận làm gì     

Bother + to V = phiền làm gì

→ Dùng “refused” để phù hợp ngữ cảnh

Dịch: Bộ trưởng từ chối cho ý kiến liệu tất cả các mỏ than sẽ bị đóng.

25 tháng 8 2018

Đáp án: C

7 tháng 10 2019

Đáp án: B

X. 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.                                                 Almost everybody has some kinds of  hobby. My hobbies are listening to music and watching television.I am very fond of music. When I am free, I often listen to my favourite songs from an old cassette recorder. At weekends, I usually go to music shops in the downtown areas to buy good CDs. Of the famous pop...
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X. 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.                                                

Almost everybody has some kinds of  hobby. My hobbies are listening to music and watching television.

I am very fond of music. When I am free, I often listen to my favourite songs from an old cassette recorder. At weekends, I usually go to music shops in the downtown areas to buy good CDs. Of the famous pop singers, I prefer Frank Sinatra, Elvis Presley, Madonna and Paul MCCartney.

I also spend an hour after dinner watching news and documentary programmes. I particularly enjoy the programme “The World Here and There” because it boardens my knowledge of nature and human civilizations.

I think that my hobbies are very useful. They widen my knowledge, relax my mind, and make me feel better about myself.

 

Question 1.  The writer’s hobbies are………………..

A. watching TV and listening to music                             

B. listening to music and playing games

C. reading books and playing games

D. playing games and watching TV

Question 2.  .The writer often listens to his favourite songs from…………………..

A.a CD player                   B. a cassette recorder                C. a mobile phone    D. a computer

Question 3. What does he usually do at weekends?

A. listen to music with his friends

B. stay at home and listen to music                                   

C. go downtown to buy CDs

D.listen to music at music shops.

Question 4.  When does the writer usually watch TV.

A. before dinner         B. before lunch                     C. after dinner           D. after lunch

Question 5. Why does he enjoy the programme “ The World Here and There”.

A. Because he can see his most famous singers. 
B. Because it widens his knowledge.         

C. Because it contains some music programmes.

D. Because he prefers to listen to Paul McCartney.

0
X. 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.                                                Almost everybody has some kinds of  hobby. My hobbies are listening to music and watching television.I am very fond of music. When I am free, I often listen to my favourite songs from an old cassette recorder. At weekends, I usually go to music shops in the downtown areas to buy good CDs. Of the famous pop...
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X. 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.                                                

Almost everybody has some kinds of  hobby. My hobbies are listening to music and watching television.

I am very fond of music. When I am free, I often listen to my favourite songs from an old cassette recorder. At weekends, I usually go to music shops in the downtown areas to buy good CDs. Of the famous pop singers, I prefer Frank Sinatra, Elvis Presley, Madonna and Paul MCCartney.

I also spend an hour after dinner watching news and documentary programmes. I particularly enjoy the programme “The World Here and There” because it boardens my knowledge of nature and human civilizations.

I think that my hobbies are very useful. They widen my knowledge, relax my mind, and make me feel better about myself.

 

Question 1.  The writer’s hobbies are………………..

A. watching TV and listening to music                             

B. listening to music and playing games

C. reading books and playing games

D. playing games and watching TV

Question 2.  .The writer often listens to his favourite songs from…………………..

A.a CD player                   B. a cassette recorder                C. a mobile phone    D. a computer

Question 3. What does he usually do at weekends?

A. listen to music with his friends

B. stay at home and listen to music                                   

C. go downtown to buy CDs

D.listen to music at music shops.

Question 4.  When does the writer usually watch TV.

A. before dinner         B. before lunch                     C. after dinner           D. after lunch

Question 5. Why does he enjoy the programme “ The World Here and There”.

A. Because he can see his most famous singers. 
B. Because it widens his knowledge.         

C. Because it contains some music programmes.

D. Because he prefers to listen to Paul McCartney.

1
21 tháng 10 2021

1 A

2 B

3 C

4 C

5 B

19 tháng 4 2017

Đáp án: D

Giải thích: Ở đoạn 4, tác giả nêu ra 3 điều kiện để tiếng lóng được tạo ra, trong đó không có điều kiện nêu ở câu 4 là một số lượng lớn nhà ngôn ngữ học.

30 tháng 12 2018

Đáp án: A