Câu hỏi:
06/11/2021 224Read 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.
There are two basic types of glaciers, those that flow outward in all directions with little regard for any underlying terrain and those that are confined by terrain to a particular path.
The first category of glaciers includes those massive blankets that cover whole continents, appropriately called ice sheets. There must be over 50,000 square kilometers of land covered with ice for the glacier to qualify as an ice sheet, when portions of an ice sheet spread out over the ocean, they form ice shelves.
About 20,000 years ago the Cordilleran Ice sheet covered nearly all the mountains in southern Alaska, western Canada, and the western United States. It was about 3 kilometers deep at its thickest point in northern Alberta. Now there are only two sheets left on Earth, those covering Greenland and Antarctica.
Any domelike body of ice that also flows out in all directions but covers less than 50,000 square kilometers is called an ice cap. Although ice caps are rare nowadays, there are a number in northeastern Canada, on Baffin Island, and on the Queen Elizabeth Islands.
The second category of glaciers includes those of a variety of shapes and sizes generally called mountain or alpine glaciers. Mountain glaciers are typically identified by the landform that controls their flow. One form of mountain glacier that resembles an ice cap in that it flows outward in several directions is called an ice field. The difference between an ice field and an ice cap is subtle. Essentially, the flow of an ice field is somewhat controlled by surrounding terrain and thus does not have the domelike shape of a cap. There are several ice fields in the Wrangell. St. Elias, and Chugach mountains of Alaska and northern British Columbia.
Less spectacular than large ice fields are the most common types of mountain glaciers: the cirque and valley glaciers. Cirque glaciers are found in depressions in the surface of the land and have a characteristic circular shape. The ice of valley glaciers, bound by terrain, flows down valleys, curves around their corners, and falls over cliffs
According to the passage, ice shelves can be found_________.
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Trả lời:
Giải bởi Vietjack
Đáp án:C
Kiến thức : Đọc hiểu
Giải thích: Theo đoạn văn, các thềm băng có thể được tìm thấy __________.
A. bao phủ toàn bộ lục địa B. bị chôn vùi trong núi
C. lan rộng ra đại dương D. lấp đầy các thung lũng sâu
Thông tin: …,when portions of an ice sheet spread out over the ocean, they form ice shelves.
Tạm dịch: …, khi các phần của mảng băng trải rộng ra đại dương, chúng sẽ tạo thành các thềm băng.
Nhà sách VIETJACK:
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Jack is a great manager. However, he is very hot-tempered. That’s his only __________.
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Câu 2:
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions
The researchers developed the first flu vaccination recently. There was a reliable protection against flu in this country
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Câu 3:
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions
I think having a beer during a meeting with your boss is clearly overstepping the mark
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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
Attendance at that new play is so low that the producers are trying to __________ by advertising heavily
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Câu 5:
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions
Flora couldn’t get a scholarship. She didn’t get a chance to study abroad.
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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 think Lucas and Emma have just had an argument, ___________?
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3,326
Câu 7:
Mark the letter A, B, C, or D on your answer sheet to indicate the option that best completes each of the following exchanges
Selena and Fred are talking about the baseball match at school.
- Selena: “The match will be postponed if the weather is bad. But they say it’s going to rain.”
- Fred: “__________”
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