托福考试2017阅读模拟冲刺题（十四）_第2页

　　5. According to the passage , which of the following is the LEAST amount of time necessary for glacial ice to form?

　　(A) several months

　　(B) several years

　　(C) at least fifty years

　　(D) a century

　　6. The word "converted" in line 15 is closest in meaning to

　　(A) changed

　　(B) delayed

　　(C) promoted

　　(D) dissolved

　　7. What is the purpose of the material in paragraph three?

　　(A) To define two types of glaciers

　　(B) To contrast glacier ice with non-glacier ice

　　(C) To present theories of glacier formation

　　(D) To discuss the similarities between glacial types

　　8. In temperate glaciers, where is water found?

　　(A) Only near the surface

　　(B) In pools of various depths

　　(C) In a thin layer below the firm

　　(D) In tunnels

　　9. The word "it" in line 21 refers to

　　(A) formation

　　(B) ice

　　(C) thickness

　　(D) weight

　　10. It can be inferred from the last paragraph that a glacier

　　(A) can revert to a fluffy mass

　　(B) maintains the same shape throughout the glacial process

　　(C) is too cold to be thoroughly studied

　　(D) can contribute water to lakes, rivers, or oceans

　　参考答案：CBDAB AADBD