仁爱版英语八年级下册《if引导的条件状语从句》讲解练习

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仁爱八年级下Unit6Topic2If引导的条件状语从句三部曲课件

句型展示
• You will be late for school if you get up late. • If you help me, I can finish my homework on time. • If I finish my homework, I wish I can watch TV. • Don't forget to lock the door if you are the last one to le
转换曲
• 1)借助析使句+and/or+陈述句”来转换。其中and表示 or表示转折。
• 2)借助介词with或without来转换。 • 3)借助动词不定式短语来转换。 • It will be a pity if we leave him alone at home. • (=It will be a pity to leave him alone at home. )
• You will be late for school if you get up late. • =if you get up late, you will be late for school.
结构曲
• 结构曲:if是从属连词，意为‘如果”，用来引导条件 if引导的条件状语从句既可放在主句之前，也可放在从句位于主句之前时，常用逗号将其与主句隔开。
练习曲
room.
Hale Waihona Puke 时态曲:• 在下而任何一种情况下，都可在if引导的条件从句中时表示将来时间。
• 1)主句的谓语动词是一般将来时; • 2)主句的谓语动词中含有can/may等情态动词; • 3)主句的谓语动词中含有want, wish, hope等动词; • 4)主句是祈使句。例如:

if引导的条件状语从句(讲义及答案)

if引导的条件状语从句（讲义及答案）You will keep healthy if you do more exercise.If you do more exercise, you will keephealthy.1.时态：if 引导的条件状语从句用表示将来，主句可以使用一般将来时，含有情态动词的句子或者祈使句。

主将从现If you practice speaking English more, you will like itbetter. If she goes to New York tomorrow, I will go there,too.My sister will be very happy if our uncle comes next week.练习：If Nancy the exam, she will go to Australia forEnglish study.A.passB. passedC. passesD. will passIf the weather fine, we have a sports meeting next weekend.A. will be; willB. is; willC. was; wouldD. was; will主情从现If you get up at six tomorrow morning, you can catch the first bus. If you go to study in America next year, you must learn English hard.主祈从现Let’s go out for a walk if it doesn’t raintomorrow. If you see a snake in the forest, don’tmove!unless也可引导条件状语从句，表示“如果不，除非”Unless he comes here in an hour, I will go there alone.If he doesn’t come here in an hour, I will go therealone.You will feel worse unless you go to see the doctor right now.You will feel worse if you don’t go to see the do ctor right now.练习：you read it, you can’t imagine how interesting the story is.A. UnlessB. BecauseC. AlthoughD. If —Please give Alice the story book you see her.—All right.A.unlessB. orC. butD. ifExercises一、单项选择( )1. Studying in groups is necessary you want to do well in school.A.ifB. untilC. unlessD.though ( )2. —Will you help me with the trouble?—I won’t you tell me the truth.A. ifB. butC. afterD. unless( )3. If Bob away from the junk food, he will be in good health.A. stayB. will stayC. staysD.stayed ( )4. If Tom thegame, we’ll give him a surprise.A. winB. winsC. wonD.winning ( )5. We’ll go to the park if ittomorrow.A. won’t rainB. don’t rainC. doesn’t rainD.rain ( )6. If you’re more careful, youmuch better.A. doB. will doC. are doingD. did( )7. If there no buying and selling of animals, there no killing in nature.A. is; will beB. will be; will beC. is; isD. will be; is( )8. I’m waiting for my friend. If he ,Iswimming alone.A. doesn’t come; goB. won’t come; goC. won’t come; will goD. doesn’t come; will go二、翻译9.如果明天不下雨，我会去看你的。

If 引导的条件状语从句讲解与练习.doc

If 引导得条件状语从句讲解与练习If引导条件状语从句得条件状语从句最常用得连词就是if,常见得if 条件状语从句表示在某条件下,某事很可能发生,条件就是可能存在得。

如: If you ask him,he will help you.如果您请她帮忙,她会帮您得。

If you fail in the exam,you will let him down.如果您考试不及格,您会让她失望得。

If you have finished the homework, you can go home.如果您作业做完了就可以回家了。

1．if从句用一般现在时,主句用一般将来时If he runs he’ll get there in time、如果她用跑得,她就会及时赶到那儿。

The cat will scratch you if you pull her tail、如果您拉猫得尾巴,它就会抓您。

2．if从句用一般现在时,主句用may/might/can/must/shouldIf it stops snowing we can go out、如果雪停了,我们就可以出去。

If you want to lose weight you must/should eat less bread、如果您想减肥,您必须少吃面包。

(另外,if从句还表示不可实现得条件或根本不可能存在得条件,也就就是一种虚拟得条件或假设。

从句多用一般过去时或过去完成时,表示对现在或过去得一种假设。

如: If I were you,I would invite him to the party.如果我就是您,我会邀请她参加聚会。

I would have arrived much earlier if I had not been caught in the traffic.要不就是交通堵塞,我本会来得早一些。

)If条件状语从句练习( )1、If I find his phone number, I ______ you、A、tellB、toldC、will tellD、have told( )2、I __ the CDs to you if I have time tomorrow、A.will return B、returned C、have returned D、return ( )3、The students will go to the Summer Palace if it ________tomorrow、A、won' t rainB、isn' t rainingC、doesn' t rainD、isn' t rain ( )4、I won’t watch the TV play if my father ___ me do myhomework、A、letB、will letC、won’t letD、lets( )5、If you ___quiet, I’ll tell you what happened、A、willB、are C are to be D be( )6、If you go to the party, you ___ a good time、A、would haveB、haveC、will haveD、had( )7、Don’t worry、Peter will call you as soon as he _____ London、A、will get toB、gets toC、get toD、got to ( ) 8、He doesn’t tell me when he __、I’ll telephone you as soon as he ___、A、will e, esB、will e, will eC、es, will eD、es, es( )9、I don’t know if Dr、White ______ to the party next week、– I think he will e if he ______ free、A、es; will eB、will e; will beC、es; isD、will e; is( )10、I don’t know if there ____ a sports meeting next month、If they _____ it, I must get ready for it、A、is; will holdB、will be; holdC、will be; will holdD、will have; hold宾语从句练习( ) 1、I don’t know ___________________、A、what does he like bestB、what he like bestC、what he does like bestD、what he likes best( ) 2、Can you tell me ______________________?A、where she livesB、where does she liveC、she lives whereD、where she live( ) 3、He asked me _______________________________、A、what time is itB、what time it isC、what time was itD、what time it was( ) 4、Do you know _______________________?A、how much did it costB、how much it did costC、how much it costsD、how much does it cost( ) 5、The man asked her _______________________、A、why did she do itB、why she did itC、why she doesD、why does she do it( ) 6、Nobody knows _________________________、A、when will she e backB、when she e backC、when she will e backD、when does she e back( ) 7、Mum asked _______________________________、A、where he wasB、where was heC、where he isD、where is he( ) 8、Do you know _______________________________?A、what they are looking forB、what are they looking forC, they are looking for what D、what do they look for() 9、The teacher asked ________________________________、A, who can answer this questionB、who could answer the questionC、what question did she askD、she answered this question( ) 10、I asked her ______________________________、A、whether he has been to AustraliaB、whether has he been to AustraliaC、whether he had been to AustraliaD、whether he goes to Australia( ) 11、The teacher told us ________________________________、A、that light traveled faster than soundB、if light traveled faster than sound、C、that light travels faster than soundD、if light travels faster than sound( ) 12、He said that __________________________________、A、he is doing his homeworkB、he does his homeworkC、he was doing his homeworkD、he do his homework( ) 13、I asked him _________________________、A、where did he goB、where he wentC、where does he goD、where he did go( ) 14、Excuse me, could you tell me _____ get to the plane?Certainly、Go straight alone here、A、how can weB、how we canC、when can weD、when we can( ) 15、Do you know _____he will ride here at 8 tomorrow morning?A、whenB、whereC、whetherD、how ( ) 16、Can you tell me why __________________?Because I want to help the people there、A、do you go to TibetB、did you go to TibetC、are you going to TibetD、you are going to Tibet ( ) 17、Do you know _______________________________?A、what time does the train leaveB、what time leaves the trainC、what time the train leaveD、what time the train leaves( ) 18、Could you tell me _______________________?A、who is heB、where’s the nearest restaurantC、if he will e tomorrowD、which way is to the underground station( ) 19、Do you know ___________?Sorry、I don’t know、You may ask the woman over there、A、when the shop opensB、when is the shop openC、when does the shop openD、when will the shop open ( ) 20 Dad, do you know ____________? In half an hour、A、when will the football game startB when the football game will startC、when is the football game going to startD、when shall we start the football game( ) 21、Could you tell me _______________________?A、which bus they are waiting forB、which bus are they waiting forC、they’re waiting for which busD、which bus they wait( ) 22、I asked her __________________________、A、whether did she like the red oneB、whether she likes the red oneC、whether does she like the red oneD、whether she liked the red one( ) 23、Can you guess (猜) __________the people in the picture are ?A、whenB、whomC、whoseD、who ( ) 24、I’m thinking about ________________________________、A、if I’ll help herB、whether I’ll help herC、what I’ll help herD、that I help her( ) 25、We never know _____________、They say he is a teacher、A、what the old man isB、what is the old manC、who is the old manD、which the old man is40学生缴费日期表。

（完整版）if条件状语从句练习与答案

（完整版）if条件状语从句练习与答案if_条件状语从句的时态练习及答案_初中习题集I.单项选择1.If you to the party, you’ll have a great time.a.will gob. wentc. god. going2.It will be a long time peter his work.a.since, has finishedb. after, finishesc. when, will finishd. before, finishes.3.what will father us from Japan?a.takeb. bringc. carryd. make4.Weifang is famous kitesa.forb. toc. ond. with5.I her the answer if she me.a. can tell, will askb. will tell, will askc. would tell, askd. will tell, asks6.– what are you going to do tomorrow?--we’ll go to the library tomorrow if it .a.isn’t rainb. rainc. won’t raind. doesn’t rain 7.—Do you know when he will come back tomorrow?--sorry, I don’t know. when he back, I’ll tell you.a. comesb. will comec. comed. may come8.what will you do if you to the old folk’s home visit?a.gob. wentc. goingd. will go9.If I eat food, I’ll be very fat.a.too manyb. many tooc. too muchd. much too10.I’ll give the book to him if he here next sunday.a. will comeb. comesc. is comingd. came11. There an english film in our school tomorrow.a. is going to haveb. will havec. is going to bed. has12.Could you tell us where ？a.will the next olympic games heldb.the next olympic games will be heldc.would the next olympic games be heldd.the next olympic games would be held13.When my mother returned last night,I a book.a. readb. am readingc. was readingd. am going to read14.What you when it began to rain?a. do, dob. were, doingc. are, doingd. did, do15.I’ll wake you up when he back.a. willb. is going to comec. comesd. comeII、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./doc/d011234800.html,na (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.I f 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.III. 完成句子1.如果他到的晚了会发生什么事情？What if he late?2.如果努力学习，你就会取得好成绩。

If引导的条件状语从句讲解与练习

If 引导的条件状语从句讲解与练习If引导条件状语从句的条件状语从句最常用的连词是if，常见的if条件状语从句表示在某条件下，某事很可能发生，条件是可能存在的。

如：If you ask him，he will help you．如果你请他帮忙，他会帮你的。

If you fail in the exam，you will let him down．如果你考试不及格，你会让他失望的。

If you have finished the homework，you can go home．如果你作业做完了就可以回家了。

1．if从句用一般现在时，主句用一般将来时If he runs he’ll get there in time.如果他用跑的，他就会及时赶到那儿。

The cat will scratch you if you pull her tail.如果你拉猫的尾巴，它就会抓你。

2．if从句用一般现在时，主句用may/might/can/must/shouldIf it stops snowing we can go out. 如果雪停了，我们就可以出去。

If you want to lose weight you must/should eat less bread.如果你想减肥，你必须少吃面包。

(另外，if从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设。

从句多用一般过去时或过去完成时，表示对现在或过去的一种假设。

如：If I were you，I would invite him to the party．如果我是你，我会邀请他参加聚会。

I would have arrived much earlier if I had not been caught in the traffic．要不是交通堵塞，我本会来得早一些。

)If条件状语从句练习( )1. If I find his phone number, I ______ you.A. tellB. toldC. will tellD. have told( )2. I __ the CDs to you if I have time tomorrow.A．will return B. returned C. have returned D. return( )3. The students will go to the Summer Palace if it ________tomorrow.A. won' t rainB. isn' t rainingC. doesn' t rainD. isn' t rain ( )4. I won’t watch the TV play if my father ___ me do my homework.A. letB. will letC. won’t letD. lets( )5. If you ___quiet, I’ll tell you what happened.A. willB. are C are to be D be( )6. If you go to the party, you ___ a good time.A. would haveB. haveC. will haveD. had( )7. Don’t worry. Peter will call you as soon as he _____ London.A. will get toB. gets toC. get toD. got to( ) 8.He doesn’t tell me when he __. I’ll telephone you as soon as he ___.A. will come, comesB. will come, will comeC. comes, will comeD. comes, comes( )9.-- I don’t know if Dr. White ______ to the party next week.–-- I think he will come if he ______ free.A. comes; will comeB. will come; will beC. comes; isD. will come; is( )10. I don’t know if there ____ a sports meeting next month. If they _____ it, I must get ready for it.A. is; will holdB. will be; holdC. will be; will holdD. will have; hold宾语从句练习( ) 1. I don’t know ___________________.A. what does he like bestB. what he like bestC. what he does like bestD. what he likes best ( ) 2. Can you tell me ______________________?A. where she livesB. where does she liveC. she lives whereD. where she live( ) 3. He asked me _______________________________.A. what time is itB. what time it isC. what time was itD. what time it was( ) 4. Do you know _______________________?A. how much did it costB. how much it did costC. how much it costsD. how much does it cost( ) 5. The man asked her _______________________.A. why did she do itB. why she did itC. why she doesD. why does she do it( ) 6. Nobody knows _________________________.A. when will she come backB. when she come backC. when she will come backD. when does she come back ( ) 7. Mum asked _______________________________.A. where he wasB. where was heC. where he isD. where is he( ) 8. Do you know _______________________________?A. what they are looking forB. what are they looking forC, they are looking for what D. what do they look for () 9. The teacher asked ________________________________.A, who can answer this questionB. who could answer the questionC. what question did she askD. she answered this question( ) 10. I asked her ______________________________.A. whether he has been to AustraliaB. whether has he been to AustraliaC. whether he had been to AustraliaD. whether he goes to Australia( ) 11. The teacher told us ________________________________.A. that light traveled faster than soundB. if light traveled faster than sound.C. that light travels faster than soundD. if light travels faster than sound( ) 12. He said that __________________________________.A. he is doing his homeworkB. he does his homeworkC. he was doing his homeworkD. he do his homework( ) 13. I asked him _________________________.A. where did he goB. where he wentC. where does he goD. where he did go( ) 14. --Excuse me, could you tell me _____ get to the plane?--Certainly. Go straight alone here.A. how can weB. how we canC. when can weD. when we can( ) 15. Do you know _____he will ride here at 8 tomorrow morning?A. whenB. whereC. whetherD. how ( ) 16. --Can you tell me why __________________?--Because I want to help the people there.A. do you go to TibetB. did you go to TibetC. are you going to TibetD. you are going to Tibet ( ) 17. Do you know _______________________________?A. what time does the train leaveB. what time leaves the trainC. what time the train leaveD. what time the train leaves( ) 18. Could you tell me _______________________?A. who is heB. where’s the nearest res taurantC. if he will come tomorrowD. which way is to the underground station( ) 19. --Do you know ___________?--Sorry. I don’t know. You may ask the woman over there.A. when the shop opensB. when is the shop openC. when does the shop openD. when will the shop open ( ) 20 --Dad, do you know ____________? --In half an hour.A. when will the football game startB when the football game will startC. when is the football game going to startD. when shall we start the football game。

if引导的条件状语从句与专题练习(可编辑修改word版)

if 引导的条件状语从句引导条件状语从句最常用的连词是if ，常见的 if 条件状语从句表示在某条件下某事很可能发生。

如：If you ask me ,I will answer you．If it rains tomorrow, I will stay at home.I will stay at home if it rains tomorrow.另外， if 从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设。

从句多用一般过去时或过去完成时，表示对现在或过去的一种假设。

如：If I were in university ，I would ⋯．If I had enough money ,I would buy a car.1.i f 从句用一般现在时，主句用一般将来时If he runs , he’ll get there in time．2.i f 从句用一般现在时，主句用 may/might/can/must If the fog getsthicker the plane may/might be diverted.3.i f 从句用一般现在时，主句用一般现在时If you heat ice it turns to water. (也可用 will turn)4.if 从句用现在进行时，主句用一般将来时If you are looking for Peter you ’ ll find him upstairs.5.if 从句用现在完成时，主句用一般将来时If you have finished dinner I ’ ll ask the waiter for the bill.一、用所给词的适当形式填空1.If you (feel) tired, you (have) to have arest.3. If there (be) fewer trees, there ( be) more pollution.5.If Marcia (live) alone, she( keep) a pet parrot.na ( buy) a new dress if the old one(be) out of style.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.13.H e (write) a letter to his grandparents if he (get) his reportcard 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.16.如果努力学习，你就会取得好成绩。

八年级英语下册UnitTopicBicycleridingisgoodexerciseif引导的条件状语从句练习仁爱版

If引导的条件状语从句专项练习一、改错题1. If everyone will obey the traffic rules, there will be fewer accidents.2. Run faster, or you will catch the bus.3. I come to see you, if I have ti me.4. We’ll travel to Shanghai if it will be fine next week.5. Works harder, or you’ll fail in the exam.二、单选题6._____ t o the party, and you’ll have fun.A. Will goB. To goC. GoD. Going7. I ____ her the answer if sh e ____me.A. can tell, will askB. will tell, will askC. would tell, askD. will tell, asks8. -We’ll go to the libra ry tomorrow if it ____.A. isn’t rainB. rainC. won’t rainD. doesn’t rain9. Be careful, ______ you will hurt yourself.A. andB. orC. becauseD. so参考答案一、改错题1. If everyone obeys the traffic rules, there will be fewer accid ents.2. Run faster, and you will catch the bus.3. I will come to see you, if I have time.4. We’ll travel to Shanghai if it is fine next week.5. Work h arder, or you’ll fail in the exam.二、单选题CDDB1 / 1。

仁爱版英语八年级下册Unit6 Topic3 拓展知识：条件状语从句讲解

拓展知识：条件状语从句讲解条件状语从句主要由if或unless引导：1)if条件句if条件句：条件句用于陈述语气，表示假设的情况可能发生，其中if 是“如果”的意思。

2)用法：(1)条件状语从句通常由连词if引导，意为“如果、假如”，主句不能用be going to表示将来，而应该用shall，will。

If you leave now, you are never going to regret it. (错误)If you leave now, you will never regret it. (正确)(2)if “如果”，引导条件状语从句，主句用一般将来时，从句则用一般现在时，如：If it rains tomorrow, I shan’t climb the hills.另外，主句是祈使句或含有情态动词，从句也用一般现在时。

如：Please call me if he comes next Sunday.Can you call the policeman if you are in the trouble?注意宾语从句中的if与条件状语从句if的区别。

宾语从句中的if“是否”相当于whether，引导宾语从句，时态需根据语境确定。

如果主句用一般现在时，从句可以根据具体情况选用时态，如果主句用一般过去时，从句必须用过去式的某种形式。

I don't know if it will rain tomorrow. 我不知道明天是否会下雨。

Our teacher said there was going to be a football match the next month.我们说下月将有场足球比赛。

（注意）下列从句中的will不是将来时助动词，而是情态动词。

翻译为“愿意”。

If you will excuse me, I really must go to bed.如果你能原谅我的话，我真的要睡觉了。

仁爱八级下UnitTopic If引导的条件状语从句三部曲课件ppt(精选文档)

语动词中含有can/may等情态动
词; • 3)主句的谓语动词中含有want, wish, hope等
动词; • 4)主句是祈使句。例如:
同义句转换
• 1、If you use your head, you'll find a way.
It will be a pity if we leave him alone at home.
• =if you get up late, you will be late for school.
结构曲
• 结构曲:if是从属连词，意为‘如果”，用 4、If there is no water, the fish will die.
It will be a pity if we leave him alone at home.
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(完整版)if引导的条件状语从句练习题

If条件句专练I单项选择1. If he hard, he will get good grades。

A. study B。

studiesC。

will study D. studied2。

I want to know if Mary to the party tomorrow。

A。

go B. wentC。

will go D. goes3. Everyone must dress up。

If you ， they won't let you in。

A。

don’t B。

won'tC。

can’t D。

mustn’t4. Mary will go to Sanya if she a five-day trip。

A. haveB. hadC. will have D。

has5. If he comes late，he will miss the train.A. andB. soC。

/ D。

orII用所给词的适当形式完成句子1。

If Bruce ________（be) free, Let’s go to the park。

2。

Tell him the news if you ________ ( meet ) him tomorrow.3. If he ________(do) well in the exam。

His teacher will be pleased withhim.4．If Mary ______（leave ) home too long, she ________(miss） her parents.5. Be quick ,and you _________(arrive） in time。

6. Hurry up， or you_________(be ） late for school。

III完成句子1.如果他到的晚了会发生什么事情?What _______________ if he _____________ late？2.如果努力学习，你就会取得好成绩。

仁爱版英语八年级下册《if引导的条件状语从句》讲解练习

If I were you, I wouldn’t do it like that.
如果我是你，我就不会那么做的。
If you gave me some money, I would be very happy.如果你给我一些钱，我就会很高兴的。
【边学边做】用括号内所给词的正确形式填空。
1. What will you buy if you ________（have）a lot of money?
If you finish your homework, you can go home now.如果你做完了作业，你现在可以回家了。
③主句为祈使句，if从句用一般现在ห้องสมุดไป่ตู้态。
Don’t jump into the river if you feel very hot.如果你感到很热，不要跳入河里。
④主句为过去将来时，if从句用一般过去时态（如果涉及到be动词，一律都用were）。此时，表达的是和现实相反的推测，用虚拟语气。
5. Please show me the way if you ________（know）it.
6. You will hurt your teeth if you ________（eat）too much candy.
7. If you gave me a toy car, I _________（be）very happy.
8. I would get the prize if I _________（work）hard.
参考答案:
1 have 2 doesn’t 3 are 4 were 5 knew 6 were to eat 7 would be 8 worked
2. If it ________（not snow）tomorrow, we will feel unhappy.

初二英语下册Unit6 If引导的条件状语从句+SA2d-3c 练习题

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 reportcard 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.答案：1.feel, will have2.will, see, has3. are, will be4.will dress , doesn't work5. lives, will keep6. will buy, is7. will fight, argue8. will have, need9. will send, tours10. says, will feel11. will go , doesn’t rain12. will have, is13. will write, gets14. gets, won' t catch15. will major, passes。

if引导的条件状语从句讲解和练习(答案)

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’t 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.orB.butC.andD.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。

(完整版)if引导的条件状语从句练习题

if引导的条件状语从句引导条件状语从句最常用的连词是if，常见的if条件状语从句表示在某条件下，某事很可能发生，条件是可能存在的，主句中某种情况发生的概率也是很高的。

如：If you ask him，he will help you．如果你请他帮忙，他会帮你的。

If you fail in the exam，you will let him down．如果你考试不及格，你会让他失望的。

If you have finished the homework，you can go home．如果你作业做完了就可以回家了。

另外，if从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设。

从句多用一般过去时或过去完成时，表示对现在或过去的一种假设。

如：If I were you，I would invite him to the party．如果我是你，我会邀请他参加聚会。

I would have arrived much earlier if I had not been caught in the traffic．要不是交通堵塞，我本会来得早一些。

另外你还要注意if 条件句的时态搭配1．if从句用一般现在时，主句用一般将来时If he runs he’ll get there in time. 如果他用跑的，他就会及时赶到那儿。

The cat will scratch you if you pull her tail. 如果你拉猫的尾巴，它就会抓你。

2．if从句用一般现在时，主句用may/might/canIf the fog gets thicker the plane may/might be diverted. 如果雾在大一些，飞机可能就会改在别的机场降落。

If it stops snowing we can go out. 如果雪停了，我们就可以出去。

3．if从句用一般现在时，主句用must/shouldIf you want to lose weight you must/should eat less bread. 如果你想减肥，你必须少吃面包。

仁爱8下U6T3

二、课文讲解1．I think traffic in Beijing is crazy. 我认为北京的交通很糟。

crazy在句中意为“拥挤”，故traffic is crazy意为“交通拥挤”，相当于traffic is heavy/busy/ terrible。

如：而crazy本意是“不理智的，疯狂的，愚蠢的，傻的”。

如：Are you crazy? 你疯了？拓展：be crazy about sth. 意为“热衷于”，be crazy about sb. 意为“迷恋，爱上”。

如：Rick is crazy about football. 瑞克十分热衷于足球。

2．If people obey the traffic rules, there will be fewer accidents. 如果人们遵守交通规则，交通事故就会减少。

（1）if意为“如果，要是；假如，倘若”，引导条件状语从句。

由if引导的条件状语从句，若主句是将来时态、祈使句或含有情态动词时，从句常用一般现在时。

如：If you are ill, you must go to see the doctor. 你如果病了，就必须去看医生。

I’ll go to see a film if I have time. 如果有时间，我将去看电影。

Please ring me up if you want to go with me. 如果你想和我一起去，请给我打电话。

3．Cycling can help us save energy and it doesn’t cause air pollution. 骑自行车能帮助我们节省能源而且它不会造成空气污染。

（1）save作动词，意为“节省，免去”。

如：The machine will save us a lot of time. 这台机器将节省我们很多时间。

链接：1）save作动词，意为“节约，储蓄，省钱”。

英语条件状语从句讲解和练习

条件状语从句引导词：if(如果) ,unless(除非), in case(以防)时态：主将从现(可能会发生的事情)主现从现(肯定会发生/祈使句)1.if引导的条件状语从句，可位于前面或后面，但是如果放在后面，主从句用逗号隔开。

e.g.I will call you if I come. 或If I come, I will come.(主将从现)如果明天不下雨，我们将去野炊。

_____________________________________________If you drop the vase,it falls into pieces.(主现从现) 如果你摔花瓶的话，它就会变成碎片。

如果你把水冷却的话，它就会变成冰。

_______________________________________________If you have any problems,please call me.如果你知道答案，请举手。

_______________________________________________2.unless引导的条件状语从句，位置和if引导的一样。

Unless=if...notE.g. If you don't study hard,you will not pass the exam.=Unless you study hard,you will not pass the exam.除非你努力工作，否则你不会得到高工资。

（high salary）。

___________________________________________________________________________________________________________________3.条件状语从句和祈使句之间的转换。

结构：祈使句，and/or +从句（and:那么or否则）1.)Work hard,and you will get a high salary.=If you work hard, you will get a high salary.2.)Work hard,or you will not get a high salary.=Unless you work hard, you will not get a high salary.=If you don't work hard, you will not get a high salary.练习一．在正确的答案下划一条线。

八下第五单元if引导的条件状语从练习

【模拟试题】一. 单项选择：1. You can take a photo ______ your mobile phone.A. forB. inC. withD. by2. This is the surprising ________ of a British cook.A. a adviceB. an adviceC. adviceD. advices3. The snake bit him ________ the hand.A. byB. onC. inD. from4. She asked me______ we should have a party there.A. ifB. thatC. whereD. /5. If I have time I _______.A. comeB. cameC. to come D will come6. My handkerchief fell on the ground, could you please _________?A. pick up itB. pick it upC. put it onD. put on it7. She began _______ English at the age of eighteen.A. knewB. knowC. knownD. to know8. Doctors couldn’t say what was wrong _____ they didn’t know what kind of snake it was.A. soB. becauseC. orD. but9. The hot water ______ again, I began to take a bath.A. coldB. coolingC. came cool D cooled10. She has _______ a lot of different medicines, but none worked.A. eatenB. drunkC. takenD. have11. Can you ______ Jay’s CD to me? And I’ll return it in 2 days.A. borrowB. lendC. giveD. have12. —______ do I record ? —Press the key.A. WhatB. HowC. WhereD. When13. If you want to play _______, press the green key.A. backB. behindC. afterD. before14. Let’s _____ the instructions.A. look outB. look upC. look downD. look at15. I’ve waited ______ the bus for 20minutes, but it hasn’t arrived yet.A. toB. forC. onD. with16. I’ll tell you if he______ back.A. comesB. comingC. comeD. to come17. Connect the keyboard ______ the computer.A. withB. onC. toD. in18. Why is it best ______ it on your computer?A. to saveB. savingC. savedD. save19. If you want to choose another _________, press the key.A. programmerB. programmesC. a programmerD. the programmer20. Can you show mw the ______ of how to use it?A. inventionB. invitationC. informationD. instructions二. 完成句子：21. 先生们，女士们，请欢迎我们的明星音乐家。