聽力課堂英語六級頻道為各位備考六級的同學們,整理了大學英語六級聽力口語關鍵句(83),希望對大家有所幫助,一起來看一下吧!
英語六級聽力口語關鍵句(83)
I couldn't have won the award without your assistance.
點睛
couldn't have won意為“本來不會贏”,是虛擬語氣的一種,表示對過去情況的假設。
考點歸納
“情態(tài)動詞+現(xiàn)在完成時”句型的用法很多。如:
must have+done sth. 表示對過去可能發(fā)生的事情的推測,意為“肯定”。如:
Mary has gone to work, but her bicycle is still here. She must have gone by bus. 瑪麗已經(jīng)去上班了,但是她的自行車還在這兒。她一定是坐公共汽車去的。
would like to have done sth. 意為“本打算做某事”。如:
I would like to have read the article, but I was very busy then. 我本來想讀一讀那篇文章,但是當時太忙了。
needn't have done sth. 意為“本沒必要做某事”。如:
I dressed very warmly for the trip, but I needn't have done so. The weather was hot. 為了旅行,我穿得很暖和,但是其實沒有必要穿這么多。天氣比較熱。
ought to/should have done sth. 表示“本應該做某事,而事實上并沒有做”。否定句表示“不該做某事而做了”。如:
1) You ought to have been more careful in this experiment. 在做這個試驗的時候,你本應該更細心一些。
2) He ought not to have thrown the old clothes away. 他本不該把那些舊衣服扔了。