条件状语从句练习精讲(含答案)讲解学习

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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 protectingthe 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。

(完整)初中英语状语从句讲解、练习与答案

状从句状从句用来修主句中的，副和形容的从句叫状从句。

根据其含状从句可分状从句，地点状从句，条件状从句，原因状从句，果状从句，比状从句，目的状从句，步状从句。

1. 状从句(1)状从句常用when, as, while, before, after, since, till, until, as soon as 等来引。

例如：It was raining hard 〔rain hard下大雨〕when got to school yesterday.While he was doing his homework, the telephone rang.As he walked along 〔沿着走〕the lake, he sang happily.He had learned a little Chinese before he came to China.After he finished middle school, he went to work in a factory.(2)在状从句里，通常不用将来，用在表示将来的作或状。

例如：I ’ ll ring you up as soon as I get to New York.I will tell him everything when he comes back.He won’ t believe it until he sees it with his own eyes.(3)在有 till 或 until 引的状从句的主从复合句里，如果主句用肯定式，其含是“一直到⋯⋯〞，只能用延性。

如果主句用否认式，其含是“直到⋯⋯ 才⋯⋯〞,“在⋯⋯以前不⋯⋯〞 , 可用瞬。

例如：The young man read till the light went out〔熄〕.Let ’ s wait until the rain stops.We won’ t start until Bob comes.Don’ get off 〔从下来〕until the bus stops.【Till 是指直到某一特定事件生的候，而在那个刻之后，事情或状况仍将持。

2019年秋人教版八年级Unit 10 if引导的条件状语从句讲和练(含答案及解析)

2019年秋八年级上册单元语法讲与练if引导的条件状语从句语法精讲1.条件状语从句的含义由一个主句和一个或一个以上的从句构成的句子叫复合句。

在复合句中作状语的句子叫作状语从句。

状语从句根据它表达的意思可分为很多种，if引导的句子在复合句中表示条件，作主句的条件状语，因此称为条件状语从句。

If you don’t hurry，you’ll be late.如果你不快点，你将会迟到的。

If he comes，let me know.如果他要来，通知我。

2.if引导的条件状语从句的结构if引导的条件状语从句在句中的位置比较灵活，可以放在主句之前(这时要和主句用逗号隔开)，也可以放在主句的后面(不用逗号)。

条件状语从句的结构为：if+陈述句，主语+谓语(=主语+谓语+if+陈述句)。

意为“如果……就……”。

If you ask him，he will tell you the answer.如果你问他，他就会告诉你答案。

I hope to visit her if I’m free.如果我有空，我希望去看望她。

3.if引导的条件状语从句与主句时态的一致性在复合句中，从句中动词的时态在一定程度上受到主句动词时态的制约，英语语法中称为时态呼应。

（1）在含有条件状语从句的复合句中，如果主句是一般将来时，从句则用一般现在时代替一般将来时表将来。

If it rains，I will stay at home.如果下雨，我将待在家里。

If you study hard，you will pass the examination.如果你努力学习，就能通过这次考试。

（2）如果主句含有must，may，can等情态动词，从句也要用一般现在时。

If you drive too fast，you may have an accident.如果你把车开得太快，你可能会出事故。

You must stop if the traffic light is red.如果红灯亮了，你必须停下来。

初中英语语法 If引导的条件状语从句(讲解及练习)

初中英语语法 If引导的条件状语从句（讲解及练习）初中英语语法-if引导的条件状语从句（讲解及练习）初中英语dd条件状语从句（讲解&练习）ⅰ条件状语从句的定义ⅱ条件状语从句的鼓励词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。

ifwepaymuchattentiontotheearth,we'llhaveabetterworld.如果我们多关爱地球，就会拥有一个更美好的世界ifitrainstomorrow,whatshallwedo?如果明天下雨，我们怎么办？特别注意：if还可以鼓励交互式条件句，则表示不容同时实现的条件，从句中多用通常过去时或过去顺利完成时。

whatwouldhappeniftherewerenowater?如果没有水会怎样？2.unless鼓励的条件状语从句，unless的意思就是如果不，除非。

可以与if...not 交换。

youwillfailinenglishunlessyouworkhard.你英语考试可以不及格的，除非你更加不懈努力。

3.as/solongas引导的条件状语从句：as/solongas意思是“只要”solongasyou'rehappy,iwillbehappy.只要你高兴，我就高兴。

ⅲ条件状语从句的种类ⅳ条件状语从句的时态原则条件句真实从句一般现在时一般过去时be动词用（were）用法①主句为一般将来时态，if从句用一般现在时态（即主将从现）。

②主句中含有情态动词，if从句用一般现在时态。

主句一般将来时情态动词+动原祈使句would/could+动原例句非真实wewillstayathomeifitrainstomorrow.如果明天下雨，我将要呆在家。

ifyoufinishyourhomework,youcangohomenow.如果你做完了作业，你现在可以回家了。

③主句为祈使句，if从句用一般现在时态。

don’tjumpintotheriverifyoufeelveryhot.如果你感到很热，不要跳入河里。

完整版初中英语状语从句讲解、练习与答案

状语从句状从句用来修主句中的，副和形容的从句叫状从句。

依照其含状从句可分状从句，地址状从句，条件状从句，原因状从句，果状从句，比状从句，目的状从句，步状从句。

1. 状从句(1) 状从句常用when, as, while, before, after, since, till, until, as soon as等来引。

比方：It was raining hard （ rain hard 下大雨）when got to school yesterday.While he was doing his homework, the telephone rang.As he walked along （沿着走）the lake, he sang happily.He had learned a little Chinese before he came to China.After he finished middle school, he went to work in a factory.(2)在状从句里，平常不用将来，用在表示将来的作或状。

比方：I ’ ll ring you up as soon as I get to New York.I will tell him everything when he comes back.He won ’ t believe it until he sees it with his own eyes.(3) 在有 till 或 until 引的状从句的主从复合句里，若是主句用必定式，其含是“向到达⋯⋯”，只能用延性。

若是主句用否认式，其含是“直到⋯⋯才⋯⋯” , 在“⋯⋯ 以前不⋯⋯” ,可用瞬。

比方：The young man read till the light went out （熄） .Let ’ s wait until the rain stops.We won’ t start until Bob comes.Don’get off （从下来）until the bus stops.【 Till 是指直到某一特定事件发生的时候，而在那个时辰此后，该事情或状况仍将连续。

条件状语从句讲解练习及答案Word文档

条件状语从句讲解练习及答案Word文档姓名：课题：条件状语从句年级：八下7.27 一．复习1.想象做某事2.感到惊异的3.令人惊异的4.偶然地5.某人碰巧做某事6.发生7.决定做某事（两种）8.下定决心做某事9.从...出去10.逃跑11.离...很远12.听说13.收到某人的来信14.你的房间和我的一样大15.首先16.传递17.被期望或被要求18.在某方面做的好（两种）19.在某方面做的不好20.克服，恢复】21.身体健康22.上车23.下车24.照顾（两种）25.吃药26.一整天（两种）27.起的晚28.某人自己的29.对...感到恐惧30.最好做某事二．语法条件状语从句讲解――if引导的条件状语从句（注意&练习）在句子中做条件状语的从句称为条件状语从句。

可置于句首、句尾，有时还可置于主语和谓语之间。

引导条件状语从句的连接词有：if ,unless,as/so long as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.如果我们多关爱地球，就会拥有一个更美好的世界If it rains tomorrow, what shall we do?如果明天下雨，我们怎么办？注意：if还可以引导虚拟条件句，表示不可实现的条件，从句中多用一般过去时或过去完成时。

What would happen if there were no water ?如果没有水会怎样？2.unless引导的条件状语从句unless的意思是如果不，除非。

可与if...not互换。

You will fail in English unless you work hard.你英语考试会不及格的，除非你更加努力。

3.as /so long as引导的条件状语从句as /so long as意思是“只要”So long as you're happy,i will be happy.只要你高兴，我就高兴。

条件壮语从句语法讲解和习题巩固(附答案)

If you go to the party, you’ll have a great time! 语法讲解和习题巩固（附答案)条件状语从句条件状语从句表示主句动作发生的条件，在初中阶段常由if(如果)和unless引导，表示假如有从句的动作发生就会有主句的动作发生。

例如：Please call me if he is at home.假如他在家的话，请给我打电话。

：一、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。

构成条件从句主句时态If＋一般现在时主语＋shall/will+动词原形例句If he comes, he will take us to the zoo.用法：(一)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 remember it. (错误)If you leave now, you will never remember it. (正确)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 won'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的意思是―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任何时态，通常情况下，如果主句用一般过去时，从句必须用过去式的某种形式。

条件状语从句练习精讲(含答案)

条件状语从句练习精讲（含答案）1---5 CDBAD 6---10 DAACB 11---15 CBCBCⅠ.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 rain7.—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. come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.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。

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If you_________ ________, you ________ good ___________.3. 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.4. 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.5. 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.6. 如果她睡过头了，就会旅游迟到的。

She;___ ___ ___ ___ the trip if she _____ ___7. 如果他有空，他会帮助你的。

If he ____ ____, he ______ ____ you.8. 如果Tom考试不及格，他就没有机会上高中了。

Tom ______have the _____to go to the high school if he ________the exams.9. 你如果抄同学的作业就不能学好各门功课。

You _______ _____ good at all the subjects if you ______ the other students’ homework.1.If you feel tired, you should have to have a rest.2. Where has he seen the film if he has time?3. If there are fewer trees, there will be more pollution.4. He will dress more casually if he doesn‘t work on weekends.5. If Marcia lives alone, she should keep) a pet parrot.6. Lana should buy a new dress if the old one is out of style.7.The twins will fight if they argue.8. I will have a bake sale if I need money for education.9. Peter will send me a beautiful souvenir if he tours Spain.10. If Mr Green says I am hard- working, my parents will feel glad.11.I go to the beach if it won’t rain this week.12. would they have a match if the P.E. teacher are busy?13.He will have written a letter to his grandparents if he got his report card this week.14. If she get up late, she doesn‘t catch the early bus.15. Peter will major in English if he pass the exams in Peking University.1.如果他到的晚了会发生什么事情？What was happened if he came late?2. 如果努力学习，你就会取得好成绩。

If you work hard, you will get good success.3. 他如果看电视太久了，他的父母会不高兴。