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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 28 to 34.
Because the low latitudes of the Earth, the areas near the equator, receive more heat than the latitudes near the poles, and because the nature of heat is to expand and move, heat is transported from the tropics to the middle and high latitudes. Some of this heat is moved by winds and some by ocean currents, and some gets stored in the atmosphere in the form of latent heat. The term “latent heat” refers to the energy that has to be used to convert liquid water to water vapor. We know that if we warm a pan of water on a stove, it will evaporate, or turn into vapor, faster than if it is allowed to sit at room temperature. We also know that if we hang wet clothes outside in the summertime, they will dry faster than in winter, when the temperature is lower. The energy used in both cases to change liquid water to water vapor is supplied by heat - supplied by the stove in the first case and by the Sun in the latter case. This energy is not lost. It is stored as vapor in the atmosphere as latent heat. Eventually, the water stored as vapor in the atmosphere will condense to liquid again, and the energy will be released to the atmosphere.
In the atmosphere, a large portion of the Sun’s incoming energy is used to evaporate water, primarily in the tropical oceans. Scientists have tried to quantify this proportion of the Sun’s energy. By analyzing temperature, water vapor, and wind data around the globe, they have estimated the quantity to be about 90 watts per square meter, or nearly 30 percent of the Sun’s energy. Once this latent heat is stored within the atmosphere, it can be transported, primarily to higher latitudes, by prevailing, large - scale winds. Or it can be transported vertically to higher levels in the atmosphere, where it forms clouds and subsequent storms, which then release the energy back to the atmosphere.
Câu hỏi:The passage mainly discusses how heat ___________________
- A. is transformed and transported in the Earth’s atmosphere.
- B. is transported by ocean currents.
- C. can be measured and analyzed by scientists.
- D. moves about the Earth’s equator.
Lời giải tham khảo:
Đáp án đúng: A
Bài đọc chủ yếu thảo luận về việc bằng cách nào mà nhiệt ___________________
A. được biến đổi và luân chuyển trong khí quyển của trái đất
B. được dòng hải lưu luân chuyển
C. có thể được các nhà khoa học đo lường và phân tích
D. di chuyển quanh xích đạo trái đất
Dẫn chứng: Because the low latitudes of the Earth, the areas near the equator, receive more heat than the latitudes near the poles, and because the nature of heat is to expand and move heat is transported from the tropics to the middle and high latitudes. Some of this heat is moved by winds and some by ocean currents, and some gets stored in the atmosphere in the form of latent heat.(Do vĩ độ thấp của trái đất nên các vùng gần xích đạo nhận được nhiều nhiệt hơn vĩ độ gần cực và bởi vì bản chất của nhiệt là lan truyền và di chuyển nên nhiệt được luân chuyển từ các vùng nhiệt đới đến các vĩ độ trung bình và cao. Một số lượng nhiệt này được di chuyển bởi gió và một số bởi dòng hải lưu, và một số được lưu trữ trong khí quyển ở dạng nhiệt ẩn.)
Chọn A
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