點擊查看:2016年大學(xué)英語六級基礎(chǔ)語法知識匯總
英語四六級考試中,單獨考察語法的題型不多,但是語法知識點卻貫穿整張試卷,小伙伴們,趁著寒假,趕緊來打好基礎(chǔ)吧!下面是考試吧為大家整理的“大學(xué)英語六級基礎(chǔ)語法知識”供備考使用。
情態(tài)動詞+have+過去分詞
1) may(might) have + done sth, can (could) have + done sth 表示過去,推測過去時間里可能發(fā)生的事情。
Philip may (might) have been hurt seriously in the car accident.
Philip can (could) have been hurt seriously in the car accident.
2) must have +done sth,對過去時間里可能發(fā)生的事情的推測,語氣較強,具有"肯定","諒必"的意思。
---Linda has gone to work, but her bicycle is still here.
---She must have gone by bus.
3) ought to have done sth, should have done sth
本應(yīng)該做某事,而事實上并沒有做。否定句表示"不該做某事而做了"。
You ought to (should) have been more careful in this experiment.
He ought not to have thrown the old clothes away.(事實上已扔了。)
ought to 在語氣上比should 要強。
4) needn‘t have done sth 本沒必要做某事
I dressed very warmly for the trip, but I needn‘t have done so. The weather was hot.
5) would like to have done sth 本打算做某事
I would like to have read the article, but I was very busy then.
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