问题 选择题

Carbon dioxide, which makes a ______ between us and the sun, prevents heat from getting out of the atmosphere easily, so the earth is becoming warmer.

A.difference

B.comparison

C.connection

D.barrier

答案

答案:D

句意:地散发到大气层中,因此地球正变得更暖和。A项意为“区别,不同”;B项意为“对比,比较”;C项意为“联系”;D项意为“障碍,屏障”,故选D项。

【考点定位】考查动词和名词的固定搭配。

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