tailieunhanh - kí năng đọc hiểu trong toeic 10

Tham khảo tài liệu 'kí năng đọc hiểu trong toeic 10', ngoại ngữ, kỹ năng đọc tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 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 10 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 15 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 20 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 25 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. 9. What does the passage mainly discuss A Where major glaciers are located B How glaciers shape the land C How glaciers are formed D The different kinds of glaciers 10. It can be inferred that ice sheets are so named for which of the following reasons A They are confined to mountain valleys. B They cover large areas of land. C They are thicker in some areas than .

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