Thứ bảy, 23/11/2024
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Câu hỏi:

17/07/2024 148

* 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.

(Hooked on TOEFL Reading - LinguaForum)

From the passage, we can see that___________.

A. Most plants have additional pigments

B. Algae are a kind of simple plants

Đáp án chính xác

C. Autotrophs obtain energy by eating organic matter

D. Oxygen helps the process of photosynthesis

Trả lời:

verified Giải bởi qa.haylamdo.com

ĐÁP ÁN B.

Đáp án B: Tảo là một loại cây đơn giản.

Các đáp án còn lại:

A. Hầu hết thực vật có bổ sung sắc tố

C. Sinh vật tự dưỡng có được năng lượng bằng cách ăn chất hữu cơ.

D. Oxy giúp cho quá trình quang hợp.

Thông tin trong bài:

Organisms that are capable of photosynthesis can obtain all the energy they need from sunlight and do not need to eat. They arc called autotrophs. Plants are the most familiar autotrophs on land. In the ocean, algae and bacteria are the most important autotrophs.

Các sinh vật có khả năng quang hợp có thể thu được tất cả năng lượng cần thiết từ ánh sáng mặt trời và không cần ăn. Chúng được gọi là tự dưỡng. Thực vật là những chất tự dưỡng quen thuộc nhất trên đất liền. Trong đại dương, tảo và vi khuẩn là những chất tự dưỡng quan trọng nhất.

Câu trả lời này có hữu ích không?

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

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  After leaving university I decided to (32)__________myself to a career in music. I loved performing, but it was hard work. I played at concerts in Europe and America, made recordings and got reviews. But after a while I felt I had gone as far as I could. Unless you’re one of the world’s top 20 pianists, it’s difficult to earn a good living and I wasn’t one of the greatest.

  When I gave up my performing career, people around me were more sad and disappointed than I was. But I felt free and (33)_________I knew I was getting serious about life. After getting a qualification in business administration I joined the recording company EMI and started their classical video division, producing programmes about famous artists. A year ago I left EMI and formed a new company, New Media Systems, which (34)________in multimedia programs.

  (35)_________I run my own business, I’m in control of my life and I feel proud of my achievements. Although the stress is high and I work long hours, the stress involved in piano playing was much worse. It took physical, emotional and mental skills. I prefer the pressures I live with now.

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Câu 8:

A MORE COMMERCIAL TUNE

  Roger Press, 40, has changed his career. After spending five years (31)_________a concert pianist, he has gone into business, recently setting up his own company.

  After leaving university I decided to (32)__________myself to a career in music. I loved performing, but it was hard work. I played at concerts in Europe and America, made recordings and got reviews. But after a while I felt I had gone as far as I could. Unless you’re one of the world’s top 20 pianists, it’s difficult to earn a good living and I wasn’t one of the greatest.

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Câu 9:

* 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.

A MORE COMMERCIAL TUNE

  Roger Press, 40, has changed his career. After spending five years (31)_________a concert pianist, he has gone into business, recently setting up his own company.

  After leaving university I decided to (32)__________myself to a career in music. I loved performing, but it was hard work. I played at concerts in Europe and America, made recordings and got reviews. But after a while I felt I had gone as far as I could. Unless you’re one of the world’s top 20 pianists, it’s difficult to earn a good living and I wasn’t one of the greatest.

  When I gave up my performing career, people around me were more sad and disappointed than I was. But I felt free and (33)_________I knew I was getting serious about life. After getting a qualification in business administration I joined the recording company EMI and started their classical video division, producing programmes about famous artists. A year ago I left EMI and formed a new company, New Media Systems, which (34)________in multimedia programs.

  (35)_________I run my own business, I’m in control of my life and I feel proud of my achievements. Although the stress is high and I work long hours, the stress involved in piano playing was much worse. It took physical, emotional and mental skills. I prefer the pressures I live with now.

Điền vào ô 31.

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  After leaving university I decided to (32)__________myself to a career in music. I loved performing, but it was hard work. I played at concerts in Europe and America, made recordings and got reviews. But after a while I felt I had gone as far as I could. Unless you’re one of the world’s top 20 pianists, it’s difficult to earn a good living and I wasn’t one of the greatest.

  When I gave up my performing career, people around me were more sad and disappointed than I was. But I felt free and (33)_________I knew I was getting serious about life. After getting a qualification in business administration I joined the recording company EMI and started their classical video division, producing programmes about famous artists. A year ago I left EMI and formed a new company, New Media Systems, which (34)________in multimedia programs.

  (35)_________I run my own business, I’m in control of my life and I feel proud of my achievements. Although the stress is high and I work long hours, the stress involved in piano playing was much worse. It took physical, emotional and mental skills. I prefer the pressures I live with now.

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Câu 14:

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Câu 15:

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.

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