Polar bears live mostly on_____ sea ice, which they use as ____platform for hunting seals.

A.     a;a  B.a;the  C./;a  D.the;/

C


解析:

本題考查冠詞。on_____ sea ice處是不可數(shù)名詞，表示泛指，不加冠詞；as____platform處表示數(shù)量，相當(dāng)于one。

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閱讀理解

　　Where did you see a polar bear? At a zoo, perhaps If you had attended a winter activity in New York a few years ago, you would have seen a whole polar bear club. These “Polar Bears” are people who meet frequently in the winter to swim in freezing cold water. That day, the air temperature was 3℃, and the water temperature was a bit higher. The members of the Polar Bear Club at Coney Island , New York are usually about the age of 60. Members must satisfy two requirements. First, they must get along well with everyone else in the group; this is very important because there are so many different kinds of people in the club. Polar Bears must also agree to swim outdoors at least twice a month from November through February.

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[　　]

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