Câu hỏi:
06/04/2020 3,139Read 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
Thunderstorms, with their jagged bursts of lightning and roaring thunder, are actually one of nature’s primary mechanisms for transferring heat from the surface of the earth into the atmosphere. A thunderstorm starts when low-lying pockets of warm air from the surface of the earth begin to rise. The pockets of warm air float upward through the air above that is both cooler and heavier. The rising pockets cool as their pressure decreases, and their latent heat is released above the condensation line through the formation of cumulus clouds.
What will happen with these clouds depends on the temperature of the atmosphere. In winter, the air temperature differential between higher and lower altitudes is not extremely great, and the temperature of the rising air mass drops more slowly. During these colder months, the atmosphere, therefore, tends to remain rather stable. In summer, however, when there is a high accumulation of heat near the earth’s surface, in direct contrast to the considerably colder air higher up, the temperature differential between higher and lower altitudes is much more pronounced. As warm air rises in this type of environment, the temperature drops much more rapidly than it does in winter; when the temperature drops more than 4 degrees Fahrenheit per thousand feet of altitude, cumulus clouds aggregate into a single massive cumulonimbus cloud, or thunderhead.
In isolation, a single thunderstorm is an impressive but fairly benign way for Mother Earth to defuse trapped heat from her surface; thunderstorms, however, can appear in concert, and the resulting show, while extremely impressive, can also prove extraordinarily destructive. When there is a large-scale collision between cold air and warm air masses during the summer months, a squall line, or series of thunderheads, may develop. It is common for a squall line to begin when an advancing cold front meets up with and forces itself under a layer of warm and moist air, creating a line of thunderstorms that races forward at speeds of approximately forty miles per hour. A squall line, which can be hundreds of miles long and can contain fifty distinct thunderheads, is a magnificent force of nature with incredible potential for destruction. Within the squall line, often near its southern end, can be found supercells, long-lived rotating storms of exceptional strength that serve as the source of tornadoes.
Question:The topic of the passage is ________.
Đáp án chính xác
Câu hỏi trong đề:
30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải !!
Hot: 500+ Đề thi thử tốt nghiệp THPT các môn, ĐGNL các trường ĐH... file word có đáp án (2025).
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Trả lời:
Giải bởi Vietjack
Đáp án A
Kiến thức: Đọc hiểu
Giải thích:
Chủ đề của đoạn văn là ________.
A. sự phát triển của bão có sấm sét và dòng đối lưu
B. những ảnh hưởng tàn phá của lốc xoáy
C. mây tích và vũ tích
D. sức mạnh của lốc xoáy
Nhà sách VIETJACK:
Sách - 500 Bài tập tổng ôn Tiếng Anh (Dành cho ôn thi THPT 2025) VietJack
Đã bán 1,2k
₫ 130.000
₫ 38.000
Sách - 25 đề thi tốt nghiệp môn Tiếng Anh (Sách dành cho ôn thi THPT Quốc gia 2025) VietJack
Đã bán 3,2k
₫ 130.000
₫ 38.000
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CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
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.
She simply took it for granted that the check was good and did not ask him any questions about it.
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Câu 2:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
This is the second time you ______ your door key.
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Câu 3:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
It is vital that everyone ______ aware of the protection of the environment.
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06/04/2020
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Câu 4:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
At first sight I met her, I was impressed with her ______ eyes.
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06/04/2020
22,730
Câu 5:
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Some methods to prevent soil erosion are plowing parallel with the slope of hills, to plant trees on unproductive land, and rotating crops.
Xem đáp án »
06/04/2020
18,299
Câu 6:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
I love this painting of an old man. He has such a beautiful ______ smile.
Xem đáp án »
06/04/2020
18,239
Câu 7:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
I know we had an argument, but I know I’d quite like to ______.
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06/04/2020
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