if条件句讲解及练习
if条件句讲解及练习
secret.
如果我是你的话，我不会泄露这个秘密的。
If I knew his new address, I would tell you.
如果我知道他的新地址，我会告诉你的。
If he studied harder, he would pass the exam.
如果他学习再努力点的话，他会通过考试的。
If we had made fuller preparation, we should have won the game.
如果我们做了更充分的准备的话，我们肯定就赢了这场比赛。
If you had taken my advice, you been late for the meeting.
wouldn't have
如果你听了我的建议，你开会就不会迟到了。
If she were to/should come, I would tell her the secret.
万一她来的话，我会告诉她这个秘密。
（2）省略if的虚拟条件句
在含有were, had, 或者should 等词的虚拟条件句中，可以省略if, 将
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.
初中英语——If引导的条件状语从句(整理版)说课讲解
在句子中做条件状语的从句称为条件状语从句。引导条件状语从句的连接词有：if ,unless,as/so long as，once等 1.if引导的条件状语从句表示在某种条件下某事很可能发生。 If we pay much attention to the earth, we'll have a better world. 如果没有水会怎样？ 2.unless引导的条件状语从句You will fail in English unless you work hard. 3.as /so long as引导的条件状语从句So long as you're happy,i will be happy. 4.once引导的条件状语从句Once you begin,never stop. 提示：在条件状语从句中，用一般现在时代替一般将来时，用一般过去时代替过去将来时。Father told me if i worked hard he would buy me a gift. if 条件状语从句的时态练习 二、用所给词的适当形式填空 1.If you ________(feel) tired, you _______________ (have) to have a rest. 2. Where _______ he _________(see) the film if he ________________(have) time? 3. If there __________(be) fewer trees, there _______________( be) more pollution. 4. He _____________(dress) more casually if he ________________( not work) on weekends. 5. If Marcia _____________(live) alone, she ___________________( keep) a pet parrot. 6. Lana ________________( buy) a new dress if the old one ____________(be) out of style. 7.The twins ______________(fight) if they_______________(argue). 8. I ____________(have) a bake sale if I _____________(need) money for education. 9. Peter _____________( send) me a beautiful souvenir if he ________________(tour) Spain. 10. If Mr Green ___________(say) I am hard- working, my parents _________( feel) glad. 11.I ____________(go) to the beach if it________________ ( not rain) this week. 12. __________they __________( have) a match if the P.E. teacher _____________(be) busy? 13.He ____(write) a letter to his grandparents if he ____(get) his report card this week. 14. If she ____________(get) up late, she _____________ ( not catch) the early bus. 15. Peter ________(major) in English if he ____(pass) the exams in Peking University. 15.如果他到的晚了会发生什么事情？What _______________ if he _____________ late? 16. 如果努力学习，你就会取得好成绩。 If you__________ _________, you ___________ good _____________. 17. 他如果看电视太久了，他的父母会不高兴。 If he _________ TV too much, his parents __________ __________ unhappy. 18. 如果我们为他组织生日聚会，大家都会来的。 Everyone ________________ if we _____________ a birthday party __________ him. 19. 如果明天不下雨，我会和你一起去公园的。 If it __________ __________ tomorrow, I ______________ go to the park _________ you.
If条件句的虚拟用法练习
高中英语If条件句的虚拟用法练习 一、单项选择 1.If I had had enough time, I___ my work. A. would finish B. must have finished C. would have finished D. had finished 2.If there were no water in the world, everything ___. A. will die B. would die C. would have died D. would have been dead 3.If you had spoken clearly, you would___. A. understand it B. have understood C. be understood D. have been understood 4.If you ___ that late movie last night, you wouldn't be so sleepy. A. haven't watched B. hadn't watched C. didn't watch D. wouldn't have watched 5.If the doctor had been available, the child ___. A. would not die B. would not have died C. could not die D. must not have died 6.___ what was going to happen, I would never have left her alone. A. Had I known B. If I know C. If I knew D. If had I known 7.- --- “Where have you been?” ----- “I got caught in traffic; otherwise _____ sooner.” A. I would be here B. I have been here C. I had been here D. I would have been here 8.___ in your position, I would help him. A. Was I B. Were I C. If I am D. If I had been 9.Had he studied hard, he___ the exam. A. would pass B. could pass C. had passed D. would have passed 10.___, I would take an umbrella with me. A. Had I been you B. I were you C. Were I you D. I had been you 11. ---- 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 12.Ten minutes earlier, they ___ the plane. A. will catch B. would catch C. would have caught D. will have caught 13.I ___, but I was stopped by the heavy rain. A. mean to come B. meant to come C. had meant to come D. meant coming 14.If it were not for the fact that you _____ ill, I would ask you to do this right now. A. were B. had been C. are D. should be. 15. Had you listened to the doctor, you _____ all right now. A. are B. were C. would be D. would have been
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。
if引导的条件状语从句讲解和练习(答案)
t 条件状语从句 一、 条件状语从句通常由 if （如果）, unless （除非），as long as （只要）引导。 例如：If it rains tomorrow, we won ’go to the park. 如果明天下雨，我们就不去公园了。 Unless weather stops me, I go for a walk every. 我每天都会去散步，除非遇上坏天气。 Our parents will be pleased with our performance as long as we try our best. 小试牛刀：1、只要我们竭尽全力，父母就会满意我们的表现。 Our parents will be pleased with our performance _____ _____ ______ we try our best. 2、如果人人为保护环境做出贡献，世界将会变得更美好。______ ______ ______ _____ _______ to protecting the environment, the world will become much more beautiful. 二、if 引导的条件状语从句 （1）“if 从句+祈使句”的句子。其实，if 作为一个连词，主句也可以是其他形式的句子。 例如：If you want to go, please let me know. If the green light isn ’t on, wait for a minute. (2)“祈使句 + and (or)+ 陈述句” 在意思上相当于一个带有条件状语从句的复合句。 注意：A. “祈使句 + and + 陈述句”可以转化为 if 引导的肯定条件状语从句，而且主语是第二人称。 B. “祈使句 + or + 陈述句”可以转化为 if 引导的否定条件状语从句，而且主语是第二人称。 例如：Study hard and you will pass the exam. =If you study hard, you will pass the exam. Hurry up, or you ’ll be late. =If you don ’t hurry up, you ’ll be late. 考题 (2010 重庆中考)Work hard ，________ you may catch up with your classmates soon. A.or B.but C.and D.yet 思路解析：本句是“祈使句＋and”的句型，句意为“努力学习，你会很快赶上其他同学的”，and 在句中表示承接 关系，所以选 C 项。答案：C 黑色陷阱：本题的陷阱是句型，本句型区别于“祈使句＋or”，这个句型的含义是“……，不然的话/否则……”。 绿色通道：祈使句后面既可以加 and ，也可以加 or ，所以要全面分析句意，再作决定。 小试牛刀：用 if 连接下列句子 1、Go to bed early and you will have a good rest. 2、Hurry up, or you ’ll miss the bus. 三、if 从句与主句具有以下特点： 1．If 从句中用一般现在时，表示未来的一种条件，从句中可以加时间状语。 e.g.If yo u can’t come tomorrow, we can hold the party a little later.明天你如果不能来，我们可迟一点举行宴会。
if条件句的虚拟语气与倒装句课件
虚拟语气与倒装句（教师版） 什么是虚拟语气（subjunctive mood）? If I were you, I would not do like this. 要我是你，我就不会这样做 I wish I became a millionaire. 要是我是个百万富翁多好啊 口头解释上面两个例句后引出虚拟语气的概念 表示说的话不是真实发生，只是一种假设，主观愿望，猜测，建议等非真实的情况。今天主要讲在条件句中虚拟语气的使用情况 Q: 那是不是所有的条件句都用虚拟语气？这里可以提问同学，进行互动后给出正确答案一．分类 1. 真实条件句，表示的假设是有可能发生的，此时主句不用虚拟语气。 e.g. If I have time, I will do the homework. （口头解释分析这个句子） 2. 虚拟条件句，表示的是一种假象，与事实相反或不太可能会发生，那就要用虚拟语气 e.g. If I were you, I would do the homework. （口头解释分析这个句子） 二．用法 时态类型主句从句例句 与现在事实相反主语+would/should/could/ might+ do If+主语+did （be 动词用were） 1. If I were you, I should work hard. 2. The bedroom would be so clean if I had time. 与过去事实相反主语+would/should/could/ might + have done If+主语+had done 1. If I had finished my homework, I would have passed that test. 2. If I had left a little earlier, I would have caught the train.
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条件句专项练习
If条件句练习 一、单项选择 1. If I _____ where he lived, I _____ a note to him. A. know, would have sent B. had known, would have sent C. know, would send D. knew, would have sent 2. Mary is ill today. If she _____, she _____ absent from school. A. wer e not ill; wouldn’t be B. had been ill; wouldn’t have been C. had been ill; should have been D. hadn’t been ill; could be 3. Alan ___ the party if he had gone to London. A. would have missed B. had missed C. would miss D. missed 4. If you had enough money, what _____? A. will you buy B. would you buy C. would you have bought D. will you have bought 5. If Mr. Y oung _____ with justice, he _____ such a wrong thing. A. were treated; wouldn’t do B. had been treated; wouldn’t have done C. were treated; wouldn’t have done D. had been treated; wouldn’t do 6. What _____ if there _____ no light during the day? A. will happen; was B. would happen; is C. happens; were D. would happen; were 7. If I knew you were coming, I ___ you at the airport. A. had met B. met C. would meet D. would have met 8. If it _____ not for the fact that you _____ ill now, I would surely punish you. A. is; are B. were; were C. were; are D. was; were 9. Many Chinese movie stars now have given up their Chinese nationality. If I were them, I _____ that. A. shouldn’t do B. didn’t do C. hadn’t done D. won’t do 10. If only I ___ to my parents! (But I didn’t.) A. listened B. had listened C. should listen D. would listen 11. I ___ you some money, but I hadn’t got any then. A. would lend B. would have lent C. could lend D. may have lent 12. If Henry had not pulled his cap low over his brow, he _____ by the police. A. might be recognized B. might have been recognized C. would have recognized D. was to have been recognized
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引导的条件状语从句讲义及答案
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