2017托福100篇阅读理解试题（十八）_第4页

　　7. Yakutat is the name of

　　(A) an Alaskan town

　　(B) the last ice age

　　(C) a surge glacier

　　(D) an Antarctic ice shelf

　　8. The word "plunge" in line 22 is closest in meaning to

　　(A) drop

　　(B) extend

　　(C) melt

　　(D) drift

　　9. The term "vicious cycle" in line 24 refers to the

　　(A) movement pattern of surge glaciers

　　(B) effect surge glaciers could have on the temperature of tropical areas

　　(C) effect that repeated rising sea levels might have on glacial ice

　　(D) constant threat surge glaciers could pose to the Gulf of Alaska

　　10. The author provides a definition for which of the following terms?

　　(A) tributary (line 15)

　　(B) ice dam (line 16)

　　(C) albedo (line 25)

　　(D) interglacial(line 26)

　　11. Which of the following statements is supported by the passage ?

　　(A) The movement of surge glaciers can be prevented.

　　(B) The next ice age could be caused by surge glaciers.

　　(C) Surge glaciers help to support Antarctic ice shelves.

　　(D) Normal glaciers have little effect on Earth's climate.

　　参考答案：BDBDB DAACD B