Why hasn’t he come?________ on time, we would have to put off the trip.

A.If he doesn’t comeB.If he will not comeC.If he didn’t comeD.If he wouldn’t come

C

解析試題分析:句意為:他為什么還沒來?如果他不來的話,我們就只好將旅行的時間往后延。
If引導的虛擬語氣,如果從句為現(xiàn)在時,則使用虛擬語氣時用一般過去式;如果從句為過去式,則使用虛擬語氣時用過去完成時;如果從句為將來時,則使用虛擬語氣時用一般過去式或should+動詞原形/were+ to do .根據(jù)主將從現(xiàn)的原理,if引導的真實條件句為現(xiàn)在時,則從句用虛擬語氣時用一般過去式,故選C
考點:考察if引導狀語從句的用法
點評:if引導的虛擬條件從句一直是考察的重點,考生在作答作答時,一定要認真區(qū)分if引導的是真實還是非真實條件狀語從句,從而正確判斷。

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Post 2

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