题目内容
18．The snowhad stopped （stop） when she woke up and the sun was shining brightly．分析 当她醒来的时候，雪已经停了，太阳正闪闪照耀着．
解答 答案：had stopped．
过去完成时的构成：had+过去分词，表示在过去的某个动作或时间之前就已发生的动作．根据"when she woke up and the sun was shining brightly"可知在她醒来之前雪就停了，所以要用过去完成时．所以要用had stopped，故填had stopped．
点评 首先要掌握过去完成时的用法，然后结合具体的句子，分析出要用过去完成时，再结合给出的英语提示，就可以确定正确答案．
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