题目内容
20.What is even more important is that as the earthcooled down (冷却),water began to appear on its surface.分析 更重要的是,随着地球的冷却,水开始在表面出现.
解答 答案cooled down.
考查固定短语.根据句意:更重要的是,随着地球的冷却,水开始在表面出现.cool down是英语的固定短语"冷却",因为表语从句的主句用的是过去时,所以as引导的状语也用过去时,所以答案填cooled down.
点评 所谓固定结构和固定搭配是指英语中一些不能随意更改的习惯表达.如固定短语中的词不能缺,固定搭配要前后一致等,对于涉及英语固定短语,固定结构的题目,只能是靠着平时的准确积累和记忆来做对题目.
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