题目内容
5.--I heard that tomorrow will rain.What should we do?--I don′t know if it ______ tomorrow.If it _______,we have to stay at home.( )
| A. | will rain; rains | B. | rains; will rain | ||
| C. | will rain; will rain | D. | rains; rains |
分析 ---我听说明天会下雨,我们该怎么办?
---我不知道明天是否会下雨,如果下雨,我们就只好待在家里.
解答 答案:A.前文的if引导的宾语从句,主句是一般现在时,从句时态不受限制,结合tomorrow可知用一般将来时will+动词原形,下文if引导的是条件状语从句,遵循主将从现的规则,从句主语it,故rains,故答案是A.
点评 if引导状语从句的时候翻译为:如果
if引导宾语从句的时候翻译为:是否
i want to know if he will come.=i want to know whether he will come or not.(这里也是在宾语从句中if和whether的区别,whether 可以和or not 连用,if 不能).
Please answer the phone for me,if he call me.[状语从句]
判断方法:主句缺宾语,于是让整个从句作为宾语.如例句中的 if he will come,整个句子做宾语.if翻译成是否
状语从句的主句不缺主要成分(主谓宾),整个句子是状语,表示条件的状语,翻译成如果.
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