八年级上册英语if引导的条件状语从句(作业及答案)
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。
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。
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。
（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。
【英语】英语状语从句练习题及答案含解析
【解析】
【详解】
句意：——我想知道蒂娜下周是否会来中国。——如果不下雨，她就会来。根据语境推测对话的语境是“——我想知道蒂娜下周是否会来中国。——如果不下雨，她就会来。”，第一个设空处的if意思是“是否”，引导宾语从句，主句是一般现在时，从句根据时间状语next week确定用一般将来时，一般将来时的构成是：主语+will+动词原形，排除B/C；第二个设空处考查含有if引导的条件状语从句中主句的时态，在含有条件状语从句中的复合句中，时态遵循“主将从现”的原则，即：主句用一般将来时，从句使用一般现在时表将来，表示“不下雨”应借助于助动词does，故选D。
8．It is necessary for children to exchange ideas with parents from time to time ________ a good parent-children relationship could be set up.
A．so thatB．becauseC．as soon as
考点：考查连词的用法。
5．一When did you leave your office yesterday?
一I finished the project.
A．UntilB．WhileC．WhenD．Not until
【答案】D
【解析】
句意：昨天你什么时候离开你的办公室的？——直到我完成那个任务。本题考查连词。A. Until直到···时候才结束，要与延续性动词连用；B. While当···时候；C. When当···时候；D. Not until直到···时候才开始，与非延续性动词连用；句子中finished（完成）是非延续性动词，故选D
(必考题)初中英语八年级上册 Unit 10经典题(含答案解析)(1)
一、选择题1．—Helen, do you know if Martin _______ to my party next week?—I think he will come if he ______ free.A．will come; will be B．will come; isC．come; is D．comes; will be B解析：B【详解】句意：——海伦，你知道马丁下周是否来参加我的聚会吗？——如果他有空，我想他回来的。
考查宾语从句和状语从句用法。
结合语境可知上文是宾语从句，描述的是将来发生的动作，故用一般将来时态。
下文是条件状语从句，当主句描述将来动作时，从句中用一般现在时态表示将来的动作。
故选B。
2．The boy still kept ________ after the school sports meeting.A．practice running B．practicing runningC．practice to run D．practicing to run B解析：B【详解】句意：在学校运动会之后，这个男孩还一直练习跑步。
考查固定搭配。
短语keep doing sth.表示一直做某事；短语practice doing sth.表示练习做某事。
根据题意，故选B。
3．She'll be late unless she ________ up early.A．got B．gets C．to get D．getting B解析：B【解析】【详解】句意：除非她起床早，她会迟到。
A. got一般过去时态；B. gets一般现在时态；C. to get动词不定式；D. getting现在进行时。
unless引导的时间状语从句，遵循主句用一般将来时，从句用一般现在时态。
根据题意，故选B。
4．I'm afraid the headmaster is________ busy ________ meet the visitors.A．much; to B．too; toC．so; to D．such; to B解析：B【解析】【详解】句意：我恐怕校长太忙而不能见游客。
Unit 10 单元语法Grammar if引导的条件状语从句-2024-2025学年八年级英语上册
班级姓名学号分数Unit 10 If you go to the party.if引导的条件状语从句（时间：60分钟，满分：100分）一、单项选择(本大题共50小题，每小题2分，共100分)1．________ I’m free tomorrow, I will help you tidy your room.A．So B．Though C．If2．We will go camping if it ________ tomorrow.A．won’t rain B．isn’t raining C．doesn’t rain D．didn’t rain 3．—Would you like to go fishing with me this Sunday?—If it ________, I will go.A．doesn’t rain B．rains C．won’t rain D．will rain4．If she ________ to Shanghai next month, I will go with her.A．go B．goes C．is going5．If I ________ to go abroad, I’ll go to Britain.A．allow B．am allowed C．was allowed D．will allow6．The concert comes after school. If Jenny ________, I will go, too.A．is going B．goes C．went D．will go7．If the weather ________ fine, we ________ have a sports meeting this weekend.A．is; will B．will be; will C．was; willA．because B．unless C．if9．We can go to see Battle at Lake Changjin ________ you want to see a movie this weekend.A．and B．if C．but D．so10．_________ you like the Beijing Opera, traditional music or magic shows, you can enjoy them there.A．If B．Before C．So D．When11．I don’t know if I ________ free tomorrow. If I ________ free, I will go to the bookstore.A．am; am B．will be; will be C．will be; am D．am; will be12．If the temperature ________ below zero degree, water ________ into ice.A．drops; turns B．will drop; turnsC．drops; will turns D．will drop; will turn13．—Labor (劳动) education is important to students’ development.—I agree. ________ students can often help with housework, it will be good for them.A．Unless B．Though C．Until D．If14．—Mom, I want to watch the program I Am a Singer IV now.—You can watch it ________ you finish your homework.A．if B．unless C．but D．so that 15．—Could you help me do some cleaning tomorrow?—If I ________ free, I will do.A．am B．will be C．was D．were16．________ you look after this coat carefully, it will keep you warm through many winters.A．If B．Unless C．Before D．So17．I would like to read my favourite book ________ I’m free this weekend.A．if B．before C．until D．though18．If it ________ tomorrow, we will go on a picnic by the lake.A．isn’t raining B．won’t rain C．rained D．doesn’t rain19．If you ________ too much time online, it will hurt your eyes badly.A．spend B．spent C．will spend D．are spending 20．Boys and girls, believe in yourself. If you ________ hard, your dream will come true.A．will study B．studied C．study D．are studying 21．—Happiness is about having each tiny wish come true.—________ we work hard, we’ll make our life full of happiness.A．If B．Unless C．Though22．—I hear Jackie Chan will come to Wuxi next week.—Really? ________ he ________, my sister will be very happy.A．If; comes B．If; will come C．Before; come D．Till; comes23．The students will make fewer mistakes ________ teachers have the punishment power (惩戒权).A．if B．but C．though D．unless24．Our primary school has changed a lot. If you go there, you _________ the changes.A．find B．found C．will find D．have found25．If your brother ________ to the party, he ________ a good time.A．goes; has B．will go; will have C．goes; will have26．We should take the rest of the food home __________ we can’t eat up what we ordered.A．if B．though C．so D．yet27．—If it ________ tomorrow, we will go camping together.—Sounds great!A．won’t rain B．doesn’t rain C．isn’t sunny 28．—You will get two free concert tickets ________ you win this singing competition.—That sounds great!A．unless B．since C．until D．if29．— If I ________ tomorrow, I will pay a visit to Fuzhou Forest Park.— That’s a good idea!A．has time B．will have time C．have time30．If people ________ the traffic rules, there will be fewer accidents.A．will obey B．obeys C．obey31．If you take this bus, you ________ in Beijing tomorrow.A．arrives B．arrive C．arrived D．will arrive 32．If Jack still ________ the flu tomorrow, he ________ to work.A．has; won’t go B．has; doesn’t go C．will have; won’t go 33．Gina ________ to hang out with her friend if she is not available this weekend.A．refuse B．refuses C．refused D．will refuse 34．There ________ 29 days in February if it ________ a leap year (闰年).A．will be, is B．will be, will be C．are, will be D．are, is 35．—Come on, Susan. I’m sure you will catch up with the others ______ you work harder.—Thank you, Miss Green.A．before B．until C．if D．so36．We can have a talk _______ you have time.A．so B．if C．or D．though 37．It will be hard for him to get up early in the morning if he ________ to bed too late.A．go B．goes C．will go D．are going 38．—Jim will bring some friends from other schools to the party.—If he ______, the teachers will ask them to leave.A．is B．does C．has D．will39．If each of us ________ something for the environment, all of us will have a better life.A．will do B．does C．is doing D．do40．If I ________ a holiday next year, I ________ part in a summer camp in Beijing.A．took; will take B．take; will take C．will take; take D．will take; took 41．— I want to know if Maria ________ us in the fashion show tonight.— I believe if she ________ her homework, she will join us.A．joins; finishes B．will join; finishes C．joins; will finish D．will join; will finish 42．Mom won’t be happy if she _________ this mess.A．sees B．saw C．will see D．has seen43．I’ll go to the meeting if it ________ by 5:00 p.m.A．ended B．will end C．end D．ends44．If it ________ sunny, we will go for a picnic in the park next Sunday.A．is B．was C．will be D．has been45．________ you don’t understand, ask your teacher.A．If B．Unless C．Because D．For46．You ________ if you do one thing at a time and stick to your plan.A．succeed B．succeeded C．will succeed D．have succeeded 47．________ the mobile phone rings during an interview, you should turn it off at once.A．Although B．Since C．If D．Before48．________ you look after it carefully, this coat will keep you warm through many winters.A．If B．Unless C．Before D．Once49．I think you’ll be late ________ you take a bus to the party.A．or B．if C．and D．but50．—What will happen ________ we hold the party next Monday evening?—Most of our classmates will not come.A．though B．if C．unless参考答案：1．C【详解】句意：如果明天我有空，我将帮你整理你的房间。
八年级英语 if条件状语从句及巩固练习答案
八年级英语if条件状语从句+巩固练习概念引入英国前首相撒切尔夫人（Margaret Thatcher）曾用if条件句对男人和女人进行评价：In politics, if you want someone to make a speech, ask a man; if you want something done, ask a woman.在政治领域，如果你想要有人发表演说，那就找男士去；而如果你想真正把事情解决，那就找女士。
用法讲解一、概念连词if的意思是“如果”，它引导的句子表示某事发生所需要的条件，即“在……条件下某事才能发生”，在句子中充当状语，因此我们称之为条件状语从句。
在复合句中连词if引导的句子为从句，被修饰的句子为主句。
从句可以放在主句后，也可以放在主句前，从句放在主句前时，应用逗号将它与主句隔开。
例如：We’ll go to the Great Wall if it doesn’t rain tomorrow. = If it doesn’t rain tomorrow, we’ll go to the Great Wall.如果明天不下雨，我们就去长城。
二、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或will。
例如：If I’m free tomorrow, I’ll go with you.如果我明天有空，我将会和你一起去。
2. if引导的条件状语从句，主句用一般将来时，从句则用一般现在时，即“主将从现”。
例如：If it is sunny tomorrow, I’ll climb the hill.如果明天天气晴朗，我将去爬山。
3. 正确区分if引导的条件状语从句和if引导的宾语从句。
在条件状语从句中，if表示“如果”；而在宾语从句中，if表示“是否”。
可以用下面的方法区分：1) 从句前置法：if引导的条件状语从句，可以放在主句之前并用逗号隔开，也可放在主句之后；而if引导的宾语从句只能放在主句之后。
八年级英语上册 if引导的条件状语从句作业 人教新目标版
.if 引导的条件状语从句（作业）一、单项选择( )1. If you to the party, you’ll have a great time.A. will goB. wentC. goD. going ()2. I her the answer if she me.A. can tell, will askB. will tell, will askC. would tell, askD. will tell, asks()3. —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( )4. —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 come( )5. What will you do if you to the old folk’s home visit?A. goB. wentC. goingD. will go ()6. I you up when he back.A. will wake; comeB. will wake; comesC. wake; comesD. wake; will come二、用所给词的适当形式填空(be) fewer trees, there ( be) 7.If theremore pollution.8.If Marcia (live) alone, she( keep) a pet dog.na (buy) a new dress if the old one(be) out of style.10.If Mr. Green (say) I am hard- working, my parents_ ( feel) glad.(go) to the beach if it11.I( not rain) this week.12.He (write) a letter to his grandparents if he(get) his report card this week..13.If she _ (get) up late, she( not catch) the early bus.三、根据汉语意思完成句子14.如果努力学习，你就会取得好成绩。
八年级英语条件状语从句单选题40题
八年级英语条件状语从句单选题40题1. If it _______ (rain) tomorrow, we will stay at home.A. rainB. rainsC. will rainD. rained答案：B。
解析：在条件状语从句中，如果主句是一般将来时，从句要用一般现在时表将来。
选项A形式错误；选项C是一般将来时，不符合条件状语从句的时态规则；选项D是一般过去时，也不符合要求，所以正确答案是B。
2. We will go to the park if the weather _______ fine.A. isB. wasC. will beD. are答案：A。
解析：同样遵循主句为一般将来时，从句用一般现在时的规则。
选项B是一般过去时，不符合；选项C是一般将来时，不能用于从句；主语the weather是第三人称单数，选项D是复数形式，所以A正确。
3. If you _______ (not study) hard, you won't pass the exam.A. don't studyB. doesn't studyC. won't studyD. not study答案：A。
解析：条件状语从句中，当主语是you时，否定形式要用don't，选项B用于第三人称单数主语；选项C是一般将来时的否定形式，不符合从句时态；选项D形式错误，所以A正确。
4. She will buy a new dress if she _______ enough money.A. haveB. hasC. hadD. will have答案：B。
解析：根据条件状语从句的时态搭配，主句是一般将来时，从句用一般现在时，主语she是第三人称单数，所以要用has，选项A用于第一、二人称和复数主语；选项C是一般过去时；选项D是一般将来时，都不符合，故答案为B。
5. If he _______ (come) here tomorrow, I will tell him the news.A. comeB. comesC. will comeD. came答案：B。
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if 引导的条件状语从句（作业）
一、单项选择
( )1. If you to the party, you’ll have a great time.
A. will go
B. went
C. go
D. going
( )2. I her the answer if she me.
A. can tell, will ask
B. will tell, will ask
C. would tell, ask
D. will tell, asks
( )3. —What are you going to do tomorrow?
—We’ll go to the library tomorrow if it .
A. isn’t rain
B. rain
C. won’t rain
D. doesn’t rain
( )4. —Do you know when he will come back tomorrow?
—Sorry, I don’t know. When he back, I’ll tell you.
A. comes
B. will come
C. come
D. may come
( )5. What will you do if you to the old folk’s home
visit?
A. go
B. went
C. going
D. will go ( )6. I you up when he back.
A. will wake; come
B. will wake; comes
C. wake; comes
D. wake; will come
二、用所给词的适当形式填空
7.If there (be) fewer trees, there ( be)
more pollution.
8.If Marcia (live) alone, she
( keep) a pet dog.
na (buy) a new dress if the old one
(be) out of style.
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.He (write) a letter to his grandparents if he
(get) his report card this week.
13.If she (get) up late, she
1
( not catch) the early bus.
三、根据汉语意思完成句子
14.如果努力学习，你就会取得好成绩。
If you , you good grades.
15.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.
16.如果我们为他组织生日聚会，大家都会来的。
Everyone if we a birthday party for him.
17.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 with you.
18.如果他有空，他会帮助你的。
If he , he you.
19.如果爸爸不去那儿，妈妈会生气的。
20.如果你和我们一起呆在这，你会玩得很开心的。
2
【参考答案】
一、
1—6 CDDAAB
二、
7. is; will be 8. lives; will keep
9. will buy; is 10. says; will feel
11. will go; doesn’t rain 12. will write; gets 13.gets; will not catch
三、
14.work hard; will get 15. watches; will be 16. will come; organize 17. doesn’t rain; will
18.is free; will help
19.If dad doesn’t go there, mom will be angry.
20.If you stay here with us, you will have a great time.
3。