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if可以引导真实条件句和虚拟条件句

if可以引导真实条件句和虚拟条件句
if可以引导真实条件句和虚拟条件句

Unit 4

一. if 条件句

if可以引导真实条件句和虚拟条件句。真实条件句表示在假设的条件下,能够实现的情况。在这种情况下,主句和从句的谓语动语随各自的人称和时态发生变化,同时if条件句遵循“主将从现”的原则,即主句用一般将来时,从句用一般现在时表将来。

If it doesn’t rain tomorrow, we will go for a picnic. 如果明天不下雨,我们去野餐。

如果if条件句用来描述说话人认为与事实相反的内容,或仅是一种愿望,假设、猜测等,我们称为虚拟条件句。

If I got rich , I would travel around the world. 如果我有钱了,我将周游全世界。

1. —I often get nervous when I have an English class. What should I do?

—If I were you, I . (ask the English teacher for help)

2. —What would the earth be like if there ?(is

no air or water on it)

—It could be like the moon without any living things.

3. If it ,the crops would be saved. (is to rain tomorrow)

4. If we had found him earlier, we .(solve the problem more easily)

5. If I hadn’t been so busy, I .(take part in the party)

四、单选。

( )1. If my father here now, he tell me what to do.

A. were, would

B. were, will

C. is would

D. is will

( )2. If I a bee, I work much harder.

A. were, would

B. were, shall

C. had, will

D. have, should

( )3. If I much money, I buy a house.

A. have, will

B. had, would

C. had, will

D. have, should

( )4. He learn more quickly if he harder.

A. will, work

B. would , worked

C. would, work

D. will, worked

( )5. If I you, I do that.

A. was, wouldn’t were, wouldn’t C. am, won’t D. were, won’t

( )6. It’s quite impossible that it will rain tomorrow. But if it ,I would still go to the park.

A. should rains

B. would rain

C. rained

D. had rained

五、汉泽英

1. 如果我是你,我会帮助她。If I you, I her.

2. 如果我以前去过那个地方,我就认识路了。(和相反)

If I to the place before, I the way.

3. 万一你明天迟到了,我们就不等你了。(和相反)

If you tomorrow, we for you.=If you late tomorrow, we for you.

4. 如果没有空气,地球上就不存在生物。

If there no air, there no living things.

if条件句中的虚拟语气讲解

虚拟语气(一) 一、考点聚焦 1、虚拟语气用于条件状语从句中 If I were a boy, I would join the army. If she had time, she should go with you. If h e had taken my advice, he would have succeeded in the competition. If i t were to rain tomorrow, the football match would be put off. If I had time, I would attend the meeting. If he had hurried ,he could have caught the train. If I were to go abroad ,I would go to America 如果我是你,我就会努力学习 If I were you, I would work harder at my lessons. 如果我知道他的电话号码,我就给他打电话了 If I had known his telephone number, I would have called him. 如果明天下雨的话,我们会取消比赛. If it should \were to rain, we would call off the match.

使用虚拟条件句要注意的几点: 1.当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时,被称为:错综时间条件句“,动词的形式要根据它所表示的时间作出相应的调整. If you had followed my advice , you would be better now. 如果你听我的建议,你现在就会痊愈了. If you had studied hard before, you would be a college student now. 如果你努力学习的话,你现在就会是大学生了. If they had worked hard, they would be very tired now.(从句说的是过去,主句指的是现在) 2.省略句 在条件句中,可省略if,把were ,had, should 提到句首,变为倒装句式.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 met him. Had you come earlier, you would have met him. If it should rain tomorrow, we would not go climbing. Should it rain tomorrow, we would not go climbing. Were I a boy, I would join the army. Had he taken my advice, he would have succeeded. Were it not for the expense, I would go to Britain. 2、虚拟语气用于名词性从句 (1)虚拟语气在宾语从句中的运用。 ①“wish + 宾语从句”表示不能实现的愿望,译为“要是……就好了”等。 表现在过去时 表过去过去完成时 表将来would, might, could+动词原形 I wish it were spring all the year round. I wish I had known the answer. I wish I could fly like a bird. I wish (that) I were a bird. I wish (that) I had seen the film last night. I wish (that) I would\could go.

If条件句和虚拟语气

If条件句和虚拟语气 if 条件句和虚拟语气 包含条件从句的句子叫条件句。条件句有两类:一类是真实条件句(First conditional),一类是非真实条件句(Second Conditional)。如果假设的情况是有可能发生的,就是真实条件句;如果是纯属假设情况或是不可能发生或可能性不大的情况,则是非真实条件句。 1.真实条件句,可用if和unless引导 1)一个动作发生,另一动作随之发生 I’ll lend Peter the money if he needs it. If he has time, he will come. If he doesn’t come before 12 o’clock, we won’t wait for him. I shall go tomorrow unless it rains. I won’t go to her party unless I am invited. 2)表示命令、建议或请求,这时的if等于when If she telephones, let me know. Give my love to Lawrence if you see him. 3)will用于if从句中,不表示将来,而表示愿意或坚持的意思 If you will come this way, I’ll take you to the manager’s office. If you will get drunk every night, it’s not surprising you feel ill. 2. 非真实条件句

非真实条件句包括虚拟条件句和错综时间条件句 1)虚拟条件句分三类,其结构列表如下: If I become president, I’ll make all of my people live a happy life. (竞选总统的候选人这样说) If I became president, I’d make all of my people live a happy life. (一个小学生这样说) l 以下与现在事实相反 He wouldn’t feel so cold if he were indoors. I am sorry I am very busy just now. If I hade time, I would certainly go to the movie with you. l 以下与过去事实相反 If you had come here a little earlier, you would have met the pop star. I don’t know what would have happened if Jane hadn’t been able to speak Japanese. l 以下推测将来 If I were to do the work, I should do it in a different way. If it should rain again, what else could we do? 2) 错综时间条件句

if非真实条件句

1.I am sure that Huston Rockets ___ the game, if Yao Ming’s knee had not been hurt. A. would win B. might have won C. will win D, could win 2.____ the truth, he wouldn’t have lent her any money. A. Jack has known B. If Jack known C. Should Jack know D. Had Jack known 4. Given more time and money, he ___ better than what it is. A. did B. had done C. could have done D. would do 5. Without your encouragement and support, we ___ . A. should not succeeded B. would not succeeded C. would have succeeded D. would not have succeeded 6. The same thing, happening in war time, ____ great disaster. A. will amount to B. amounted to C. would have amounted to D. would amount to 7. If I ___ the job, I would do it in a different way. A. would do B. do C. shall do D. were to do 8. He ___ ten lectures on American history, but he.only gave two because of his illness. A. had given B. gave C. should have given D. must have given 9. Any man in his position ___ like that. A. have done B. would have done C. would be done D. would be doing 10. Five minutes earlier, I ___ the flight. A. have caught B. had caught C. could have caught D. were to catch 11. Our director was absent. Otherwise, I ___ the chair. A. would not take B. didn’t take C. hadn’t taken D. wouldn’t have taken 12. If you explained the situation to your lawyer, he ___ able to advise you much better than I can. A. would be B. will have been C. was D. were 13. __ you __ further problems with your printer, contact your dealer (经销商) for advice. A. If, had B. Have, had C. Should, have D. In case, had 14. Had Judy been more careful on the maths exam, she ___ much better results now. A. would be getting B. could have got C. must get D. would get 15. If there were no subjunctive mood, English ____ much easier to learn. A. could have been B. would be C. will be D. would have been

if引导的条件句中的虚拟语气

if引导的条件句中的虚拟语气 虚拟语气表示一种不能实现的假设。该语法主要用于if条件状语从句。 一、if引导的条件状语从句的分类及虚拟条件句的判断 1、可以把条件句分为两类: 1).真实条件句(Sentences of Real Condition):凡是假设的情况发生性可能很大,就是真实条件句。例如: ⑴、If I have time , I will help you with this work.如果我有时间会帮助你做此工作的。 (2)、If time permits, we'll go fishing together.(如果有时间的话,我们就一起去钓鱼。) 2).虚拟条件句(Sentences of Unreal Condition):当假设是不大可能实现时,就是虚拟条件句。例如: ⑴、If I were you , I would have attended the meeting. 如果我是你的话,就去参加会议了。 ⑵、If he had come here yesterday, he would have seen h is old friend.假如他昨天来这儿的话,就会看见他的老朋友。 ⑴、If it had rained yesterday, we would have stayed at home.(如果昨天下雨的话,我们就会留在家里。) 2、.if条件状语从句中虚拟语气的判断 判断是真实条件句还是非真实条件句。只有在非真实条件句中才使用虚拟语气。通过句子意思,看假设的条件是否能够实现,能

够实现是真实条件句,不能使用虚拟语气;假设的条件不能实现则是非真实条件句,要用虚拟语气。 判断这个假设是与哪个事实相反。通常有三种情况:①与过去事实相反。②与现在事实相反。③与将来事实可能相反。 3、“后退一步法” 后退一步法是指在准确地判断了该句与哪一事实相反后,按虚拟语气的后退一步法处理从句谓语动词的时态。即:在非真实条件状语从句中,谓语动词按正常情况“后退一步”。也就是: ①与过去事实相反,在从句中用过去完成时形式表示。 ②与现在事实相反,在从句中用过去一般时形式表示。 ③与将来事实可能相反,在从句中用过去将来时形式表示。 主句中则用情态动词would, should, could 等加一个与从句一致的动词形式。例: ⑴、If I had come her yesterday, I would have seen him. ⑵、If I were a teacher, I would be strict with my stud ents. ⑶、If it should snow tomorrow, they couldn't go out. 4、注意事项 ①if条件句中如有were, should, had,可以省去if,并使用倒装语序。 ②在现代英语中if条件状与从句中的谓语动词如果是be其过去形式一般用were。

(完整版)if引导的非真实性条件状语从句即虚拟语气

if 引导的非真实性条件状语从句即虚拟语气 通过动词形式的变化来表示说话人对发生的动作或存在的状态所持的态度或看法的动词形式称为语气。.英语中的语气分三种:陈述语气、祈使语气、虚拟语气。虚拟语气表示说话人所说的话不是事实,而是一种祝愿,建议,与事实相反的假设或实际可能性不大的情况等(即非真实的假设)。 If 引导的条件状语从句分为真实和非真实条件句(虚拟条件句)。真实条件句表示在假设的条件下,有可能实现的情况。非真实条件句表示的是假设的或实际可能性不大的情况,故采用虚拟语气。 If he does n’t hurry up, he will miss the bus.( 真实条件状语) If he was free, he asked me to tell stories.(真实条件状语) If I were you, I would go at once.(非真实条件状语从句) If there was no air, people would die.(非真实条件状语从句)1)非真实条件句中虚拟语气的基本形式。 假设类型条件从句的动词结果主句的动词 与现在事实相反动词过去式(be只用were)would/should/could/might + 动词原形 与过去事实相反had+过去分词would/should/could/might + have + 过去分词 与将来事实相反动词过去式/(should/were to)+动词原形would/should/could/might + 动词原形

①与现在事实相反 If I had time, I would go for a walk. 如果我有时间,我就会去散步。(实际情况:我现在没有时间,也不会去散步。) If I were you, I would take an umbrella. 假如我是你的话,我会带上雨伞。(事实上我不可能是你。) I would say no if someone asked me to be in a movie. 假如有人请我当电影演员,我会表示拒绝。(事实上现虚拟语气专项练习 1.Were it not for the snowy weather, we __________all right. A. would be B. would have been C. were D. may be 2. ________more careful, his ship would not have sunk. A. If the captain were B. Had the captain been C. Should the captain be D. If the captain would have been 3. If he _________ me tomorrow, I would let him know. A. should call B. should not have been able C. were not able D. are not able 4.If you asked your father, you ______________ permission. A. may get B. might get C. should have called D. maybe get

if可以引导真实条件句和虚拟条件句.

Unit 4 一. if 条件句 if可以引导真实条件句和虚拟条件句。真实条件句表示在假设的条件下,能够实现的情况。在这种情况下,主句和从句的谓语动语随各自的人称和时态发生变化,同时if条件句遵循“主将从现”的原则,即主句用一般将来时,从句用一般现在时表将来。 If it doesn’t rain tomorrow, we will go for a picnic. 如果明天不下雨,我们去野餐。 如果if条件句用来描述说话人认为与事实相反的内容,或仅是一种愿望,假设、猜测等,我们称为虚拟条件句。 If I got rich , I would travel around the world. 如果我有钱了,我将周游全世界。 二.虚拟语气 区分条件从句主句例句 ★与现在事实相反If+主语+过去 式(be多用 were)… 主语+would/should/could/ might+动词原形… If I were rich, I would buy a big house. 如果我 有钱,我将买一所大房 子。 与过去事实相反If+主语+had+ 过去分词… 主语 +would/should/could/might+ have+过去分词… If I had read this article earlier, I would not have made this kind of mistake.如果我早读过这 篇文章,我就不会犯这 样的错误了。 与将来事实相反If+主语+过去 式(be多用 were) /should+动词 原形/were to+ 动词原形… 主语 +would/should/could/might+动 词原形… If it were to rain tomorrow, the match would be put off. 如果明 天下雨,比赛就会被推 迟。

if引导的虚拟条件句(20200509141756)

Subjunctive Mood Ⅰ. Listen to the songs and fill in the blanks Number one: If _______________, _____________so high That the only people near me Would be the pilots in the sky. And If _______________, _______ so gracefully Through the air so all mankind could see. If _______________ Number two: If ______________I'd never hear your voice again, ___________each thing you ever said And on those lonely nights I could think of them once more And keep your words alive inside my head If _______________I'd never hear your voice again Number three: If I ______________, I _______________ in your way So I'll go, but I know I'll think of you every step of the way And I will always love you I will always love you Number four: yeah if ___________, then money, fame and fortune never _____________ If ____________, _____________a party( it'd be ecstasy(狂喜)) yeah if __________ you y-y-y-y do y-y-y-y-y do y-y-y-y-y do If _____________ that would be the only thing I'd ever need Subjunctive mood is used to talk about situations that are ______ true or _____ likely to become true. Ⅱ Observe the following sentences and put them into throw groups 1.If it were Sunday tomorrow, I would go and see my friends. 2. If she hadn't called me, I could have overslept(睡过头) this morning. 3. If he were you, I might go and try. 4. If I had time right now, I should certainly help you. 5. If I had known your telephone number yesterday, I would have telephoned you. 6. If it should rain in the near future, the crops could be saved. 7. If he were here tomorrow, I should speak to him. 8. If we had no air and water, we wouldn't survive. 9. If it snowed tomorrow, I might stay at home. 10. If you were to be a millionaire soon, what would you do with your money? Contrary to the present:__________________ Contrary to the past:_____________________ Contrary to the future:___________________ Ⅲ Structures of subjunctive mood 1. 虚拟条件从句主句 与现在事实 相反的假设If+S+________________ S+_____________________ 与过去事实 相反的假设If+S+ ________________ S+_____________________ 与将来事实 相反的假设 _______________ If+ S+ _______________ _______________ S+_____________________ 2. If 的省略:________________________________________________ 3. 错综条件句:______________________________________________ 1)If you had followed my advice the other day, you would feel better now.

if条件句中的虚拟语气(一)(同步练习)-word文档资料

(答题时间:20分钟) 一、单项选择: 1. —I didn’t attend the lecture yesterday. —I ________, either,if my mother hadn’t reminded me. A. wouldn’t B. wouldn’t have C. didn’t D. hadn’t 2. —Will you accept the job offer? —If I ________ five years younger, I ________ it. A. were; would have taken B. have been; would take C. were; would take D. had been; would have taken 3. —Pity you missed the concert. —I ________ it, but I was busy preparing for a job interview. A. must have attended B. had attended C. would have attended D. would attend 4. Don’t complain about your pet dog.Your pet dog _____ like you more, if you ____ him better. A. would, treated B. could, had treated C. can, treated D. would, treat 5. If he _____ tomorrow, we _____ the meeting till next week. A. should not come, would put off B. does not come, would put off C. comes, will put off D. came, would put off 二、翻译下列句子: 1. 如果我是你,我就会努力学习。 ____________________________________________________ 2. 如果明天下雨的话,我们会取消比赛。 ____________________________________________________ 3. 假如明天他来了, 我们对他说什么呢? ____________________________________________________ 4. 如果没有水和空气,地球上就不会有生物。 __________________________________________________ 5. 如果我是Tom,我不会做这样的事情。 ____________________________________________________ 6. 如果我很了解她,我会告诉你关于她的一些情况。 ____________________________________________________ 7. 如果我能出国,我会到美国去。

高考if条件句虚拟语气

高考虚拟语气试题 1. ____ to the doctor right away, he might have been alive. A. If he went B. Were he gone C. Should he have gone D. Had he gone 2. If you were older, I ____ you to go there yesterday. A. will allow B. should allow C. would have allowed D. had allowed 3. If we ____ here ten minutes earlier, we ___ the bus. A. arrived/would catch B. arrived/would have caught C. had arrived/had caught D. had arrived/would have caught 4. If I ___ more time, I would have gone with him. A. had B. had had C. have had D. would have 5. If he had not gone out in the storm _____. A. he will be alive now B. he would be alive now C. he would have been alive now 6. If it ___ tomorrow, what would we do? A. rains B. were to rain C. would rain D. rain 7. If only I _____ how to operate an electronic computer as you do. A. had known B. would know C. should k now D. knew 8. If it ___ rain, we ___ get wet. A. is to, should B. were to, would C. were going to, would D. was going to, should 9. If he ___ to the teacher attentively, he ___ the answer to the problem now. A. had lis tened, would have known B. listened, would know C. listened, would have known D. had listened, would know 10. ---- I thought you would come back tomorrow. ---- I would if I ___ to attend a meeting. A. don’t have B. didn’t have C. will not have D. would not have 11. If I had hurried, I ___ the train. A. would catch B. could catch C. would have caught D. had caught 12. If I had known that, I ___ so. A. wouldn’t do B. wouldn’t have done C. won’t do D. have not done 13. If I ___ you, I wouldn’t return the call. A. be B. am C. was D. we re 14. If the doctor had been available, the child ___. 教育是一项良心工程 1

if条件状语从句中虚拟语气

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