2. 外语
  3. Many houses in the north are warm in winter because they are ______ so that the beat is not lost.

Many houses in the north are warm in winter because they are ______ so that the beat is not lost.

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问题 Many houses in the north are warm in winter because they are ______ so that the beat is not lost.
选项 A、isolated
B、insulated
C、imparted
D、integrated
答案B
解析 形近易混词辨义。这四个选项都是动词形式，isolate表示“使孤立；使隔离”；insulate表示“使绝热；使绝缘”；impact意指“(常与on连用)对…施加影响”；integrate表示“使成整体；结合”。根据句意，北方的房子肯定是做了隔热处理，所以B)项符合题目要求。
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大学英语六级

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