语法专项一虚拟语气.ppt
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1、语法专项:虚拟语气,1. Jean doesnt want to work right away because she thinks that if she _ a job, she probably wouldnt be able to see her friends very often. (96.1) A. has to get B. were to get C. had got D. could have got,B,7. If I hadnt stood under the ladder to catch you when you fell, you _ now. (99.1) A
2、. wouldnt be smiling B. couldnt have smiled C. wont smile D. didnt smile,A,【语法要点】错综时间的虚拟句 如果条件从句中的动作与主句中的动作发生的时间不一致,那么要根据不同的时间来调整动词的形式 。 eg.If he had listened to me, he would not have been in such trouble now. 如果他过去听了我的话,现在他就不会陷入这样的麻烦。 If the criminal were honest, hed have made a clean breast of the
3、 whole thing long ago.,【语法要点】省略 if 的虚拟句 在If引导非真实条件从句中谓语动词部分含有were, had, should,可省略if, 这时需将助动词were, had, should, 提到句首,变成倒装结构。作谓语动词时,也可以提到句首而省略if。如: -Were I you, I wouldnt do like that. -Had u asked me, I would have told u. -Should it be necessary, I would go.,2. If the whole operation _ beforehand, a
4、 great deal of time and money would have been lost. (99.6) A. was not planned B. has not been planned C. had not been planned D. were not planned 3. _ for my illness, I would have lent him a helping hand.(95.1) A. Not being B. Had it not been C. Without being D. Not having been,C,B,4._ before we dep
5、art the day after tomorrow, we should have a wonderful dinner party. (97.1) A. Had they arrived B. Would they arrive C.Were they arriving D. Were they to arrive,D,【语法要点】不使用if的含蓄虚拟句 此类句子的特点是虽然不使用if,但有相当于if的短语,最常用的形式包括由but for, without构成的介词短语或otherwise, or, or else, and单独使用。如: -Without your help, we c
6、ould not have finished the work earlier. (如果没有你帮忙,我们不可能早点儿把这活干完。) -Five minutes earlier, and you would have seen him. (如果早来五分钟,你就能见到他了。) -But for his help, I would/should fail.,Another effort, and you will/ would have succeeded. Put on more clothes, or u would have caught cold.,【语法要点】不使用if的含蓄虚拟句 if的
7、同义词还有: 除非unless; 假定/如果provided,providing(that), supposing/suppose(that), Given that, Assuming(that); 如果only if, 只要so (as) long as; 以为条件on condition that;,-I might have done better under more favorable conditions. -In the absence of keeper, the warehouse would have been burned down. -In case of , in
8、the event of ,5 We didnt know his telephone number; otherwise we _ him. (95.6) A. would have telephoned B. must have telephoned C. would telephone D. had telephoned 6. He must have had an accident, or he _ then. (90.1) A. would have been here B. had to be here C. should be here D. would be here,A,A,
9、【语法要点】wish / if only 虚拟句 与现在事实相反,动词变成一般过去式(be用were) did I wish I knew German. I wish I were a bird. 与过去事实相反,用过去完成进或could / might / would + have done I wish I had gone with you to the party yesterday. I wish I could have caught the last bus. 与将来事实相反,用could / would / might + do I wish I could walk on
10、the moon one day. 以上各句中I wish 都可以换成if only , 动词变化形式与 “I wish”相同。,“if only”从句只用虚拟语气,而且其主句一般都省略,并以感叹句的形式出现,表示“要是就好了!” 谓语动词用过去时表示与现在 的事实相反,用过去完成时表示与过去事实相反. Look at the terrible situation I am in! If only I had followed your advice! If only I had money, I could travel around the world!,8. I wish I _ lon
11、ger this morning, but I had to get up and come to class. (95.6) A. could have slept B. slept C. might have slept D. have slept 9. Sometimes I wish I _ in a different time and a different place. (2000.1) A. be living B. were living C. would live D. would have lived,A,B,10. If only the committee _ the
12、 regulations and put them into effect as soon as possible. (97.1) A. approve B. will approve C. can approve D. would approve 11. Look at the terrible situation I am in! If only I _ your advice. (93.6) A. follow B. had followed C. would follow D. have followed,D,B,【语法要点】would rather 后的宾语从句 用一般过去时表示“宁
13、愿某人现在做(或不做)某事,但如表示“宁愿某人过去做(或没做)某事时,would rather 后则用过去完成时,如: Id rather he hadnt done that yesterday. would rather 也可换成would sooner, would just as soon, 用法不变。 It is time + 从句 (一般过去时),12. To be frank, Id rather you _ in the case. (95.1) A. will not be involved B. not involved C. not to be involved D. w
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