He'll come ( ) it doesn 't rain tomorrow.He'll come ( ) it doesn 't rain tomorrow.A.after B.while C.when D.if

分类: 作业答案 • 2021-12-20 02:51:57

问题描述：

He'll come ( ) it doesn 't rain tomorrow.
He'll come ( ) it doesn 't rain tomorrow.
A.after B.while C.when D.if

答

选D. if
when除了有“当。。。时”做连词用，还可以引导条件句，意思是“如果。。。。”
但when 通常侧重讲必不可少的条件；而if 侧重讲的是将来可能出现的条件，句中有个表示将来时态的词tomorrow,所以用if。

答

D if条件状语从句主将从现（主句一般将来时，从句一般现在时）

答

D 如果明天不下雨他就会来.主将从现.主句用将来时.从句用现在时.