【—輔導(dǎo)之狀語從句】下面是對狀語從句語法的講解,同學(xué)們認(rèn)真學(xué)習(xí)。
狀語從句:
此處所說的狀語從句用法僅包括條件(if和unless引導(dǎo))狀語從句和時(shí)間(when等引導(dǎo),見下文)狀語從句。狀語從句需注意以下問題:
1主句若是一般將來時(shí)、祈使句或含不表過去的情態(tài)動詞等,則if(如果), unless(除非),when(當(dāng)…的時(shí)候), as soon as(一…就…),before, after, until, till, as(當(dāng)…的時(shí)候)所引導(dǎo)的狀語從句用一般現(xiàn)在時(shí)。
You may take a rest when you finish doing your work. (主句有情態(tài)動詞)
Could you look after my son after I leave home?
。ㄇ閼B(tài)動詞could是為了讓語氣委婉,并不指過去時(shí),從句仍用一般現(xiàn)在時(shí))
I will go out as soon as it stops raining this afternoon. (主句是將來時(shí))
Wait for your brother at the bus station until he arrives. (主句是祈使句)
2而主句若是一般過去時(shí),從句也要用表過去時(shí)的適當(dāng)時(shí)態(tài),如:
I would give the money to the charity if I had a million dollars.
When he got to the park, his classmates had left.
My son ran towards me as soon as he saw me on the street.
通過上面的講解,相信同學(xué)們對狀語從句的可以很好的掌握了,希望同學(xué)們在考試中取得好成績。
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