题目内容
15．刚一听到这个好消息，他就迫不及待地告诉了他父亲．He couldn't wait to tell his father the good newsas soon ashe heard it．
分析 as soon as．
解答 答案：as soon as．结合句意这里是要表达出一…就用as soon as引导的时间状语从句，故答案是as soon as．
点评 as soon as表示一…就，其中的从句通常用一般现在时表示将来时．
这个短语用的比较常用，口语和书面语都可以．它的特点是，在句子中的位置比较灵活，而且可以用于各种时态．例如：
1、指未发生的动作，规律是：主句一般将来时，从句用一般现在时代替一般将来时
如：I will tell him the news as soon as he comes back．
注：有时，为了特意表达刚刚完成某事就如何如何，需要用现在完成时．
如：I will go with you as soon as I have washed my face．
2、指紧接着发生的两个短动作，主从句都用一般过去时
如 He took out his English books as soon as he sat down
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