题目内容
18．又到天气预报的时间了．It's time for weather forecast again．
分析 It's time for．
解答 答案：It's time for．这里是说客观事实用一般现在时，表示做某事的时间到了，根据后面的名词短语weather forecast，用句型It's time for sth，故答案是It's time for．
点评 It's time„句型是中学英语里使用频率较高的句型，其意为"该是„„的时候了"．用法灵活多变，也是大家以掌握的句型：（1）It's time for+n．"该是（干）„„的时候了．"例：Boys and girl，It's time for class．同学们，该上课了．
（2）It's time+（for sb．） to do sth..表示"该是（某人）干„„的时候了．"例：It's time for you to clean the classroom．该是你打扫教室的时候了．
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