一轮资料资源简介:
1. 在以if, when, though, as if等连词引导的状语从句中,如果从句中的谓语动词是be,且主从句主语一致或从句主语是it时,常将从句中的主语和动词be 省略。如:
If necessary, we shall go home at once.
Whenever possible, Fang Lei will come to my help.
While cycling, don’t forget the traffic lights.
2. 固定用法。如:
What about having a game of chess?
How come they left you alone here?
What if it’s raining next Monday? Can the match be put off?
Why not try again? You’ll make it.
3. 在口语中,为了避免重复,不定式可以省去和前面重复的动词原形而只保留不定式符号to,但若不定式为to be时,动词be需保留。如:
He may leave if he wishes to. (to后省略了leave)
Don’t go till I tell you to. (to后省略了go)
My aunt is as beautiful as she used to be. (保留be,后面省略了beautiful)
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