1、虛擬語氣,虛擬語氣在非真實(shí)條件句中的運(yùn)用（if條件句或者含蓄條件句） 從句中使用should形式的虛擬語氣 wish，as if 以及 if only從句中虛擬語氣 其他固定結(jié)構(gòu)虛擬語氣,虛擬語氣在非真實(shí)條件句中的運(yùn)用 if 條件句,例句分析If 條件句,If it had not rained yesterday, the crops would have died. If I were you, I would study hard now. If she should /were to come tomorrow, we should go shopping together.,虛擬語氣

2、在非真實(shí)條件句中的運(yùn)用 含蓄條件句,有時(shí)候虛擬語氣中并不出現(xiàn)if引導(dǎo)的條件 句而是通過其他方式來表示隱含的條件。常 見的有otherwise/without/with/but for等。,例句分析含蓄條件句,I was ill yesterday. Otherwise I would have taken part in the sports meeting. Without your help, we couldnt have finished the work ahead of time. What would you do with one million dollars? But fo

3、r the rain, the crops would have died.,If 條件句的省略,在if條件句中可省略if，把were，had，should 提到句首，變?yōu)榈罐D(zhuǎn)句式。 如： If I were at school again, I would study harder. Were I at school again, I would study harder. If you had come earlier, you would have caught the bus. Had you come earlier, you would have caught the bus.,I

4、f it should rain tomorrow, we would not go climbing. Should it rain tomorrow, we would not go climbing. 注意：當(dāng)省略的條件狀語從句中的謂語動(dòng)詞是否定形式時(shí)，不能用動(dòng)詞的縮略形式。如： Werent it for the expense, I would go abroad now.（） Were it not for the expense, I would go abroad now. （）,隨堂練習(xí),1. If I were to do it, I _it in a different

5、way. A. shall do B. will do C. would do D. have done 2. If you asked your father, you _permission. A. may get B. might get C. should have got D. may have got 3. But for the help you gave me, I _ the examinations. A. would have passed B. would passC. wouldnt have passed D. wouldnt pass,C,B,C,4._ I yo

6、u, I would go with him to the party. A. Was B. Had been C. Will be D. Were 5._the English exam I would have gone to the concert last Sunday. A. In spite of B. But for C. Because of D. As for 6. Without electronic computers, much of todays advanced technology_. A. will not have been achieved B. have not been achieved C. would have not been achieved D. ha