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。

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。

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。

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。