表示與過去事實相反的情況時, if從句的謂語用had done形式, 主句的謂語用should / would / could / might + have done的形式 a. If she had invited me yesterday, I should have gone to the party. b. I would have checked my paper again if I had had more time at yesterday’s exam. c. If you had taken the teacher’s advice, you would not have failed in the exam. 【查看更多】

 

題目列表(包括答案和解析)

as if和as though引導的從句所敘述的情況與事實相反時，從句的謂語動詞多用虛擬語氣。在虛擬語氣結構中，用________時態(tài)來表示現(xiàn)在的情形；用________時來表示過去的動作或狀態(tài)；用________時表示正在進行的動作；用________時表示將要發(fā)生的動作。

當as if和as though從句的主語和主句主語一致，且從句中含有系動詞be的某種形式時該主語和系動詞可以省略。

例如：John paused as if(he was)expecting Mary to speak．

查看答案和解析>>


同步練習冊答案