初中条件状语从句 精讲和练习含答案

初中英语：条件状语从句之公保含烟创作
一．条件状语从句的概念
条件状语从句，即在某种条件下，一件事情能够发作.在英语
中由衔接词if或unless等引导的状语从句叫做条件状语从句.条
件是指某一件事情实现之后（状语从句中），一件事情（主句）才
华发作，通常译作“假设，只要，如果”等意思.条件状语从句中，
主从句的时态要遵循“主将从现”的原则.即，主句是未来时态
时，从句用一般现在时替代未来时态.
1.If conj . 如果，假设
If you ask him，he will help you．如果你请他辅佐，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.
2.unless conj.除非,若不,除非在……的时候（if ...not...）
You will fail to arrive there in time unless you start earlier.如果你不早点动身,你就不能及时赶到那儿.
Unless it rains, the game will be played.除非下雨,角逐将照常
停止.
You may borrow my book as long as you keep it clean.
只要你坚持书的清洁，你就可以把我的书借去.
三．关于条件句的时态，罕见的有以下三种情况：
1、条件状语从句的主句是一般未来时，那么从句经常常使用一般
现在时.
When I grow up, I’ll be a nurse and look after patients. 我
长年夜后要当一名护士，照顾病人.
2、如果主句是祈使句，那么从句通常要用一般现在时.
If you want to have a chat ,call me up.如果你想聊天，打我电
话.
3、如果主句是含有情态动词时，依据需要从句多用一般现在时.
You should be quiet when you are in the reading room.
在阅览室时应坚持宁静.
四．知识拓展
1在以when，before，as soon as等引导的时间状语从句，也适用“主将从现”原则，即如果主句是一般未来时，从句则用一般现在时. I'll tell her the good news when she comes back.当她回来的时候，我将把这个好消息通知她.
she will give you a call as soon as she returns.她一回来就会给你电话.
2.If条件句的同义句：祈使句，and /or+未来时态的陈说句.
Work hard ,and you will make great progress.=
If you work hard,you will make great progress.如果你努力学习，你才会取得年夜的提高.
Hurry up, or you will b e late.=If you don’t hurry up.you will be late.如果你不快点，你就要迟到了.
条件状语从句练习精讲（含谜底）
Ⅰ.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. It will be a long time ____ Peter _____ his work.
A. since, has finished
B. after, finishes
C. when, will finish
D. before, finishes.
3. What will father _____ us from Japan?
A. take
B. bring
C. carry
D. make
4. Weifang is famous ______ kites
A. for
B. to
C. on
D. with
5．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
6. – 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
7.—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
8. What will you do if you _____ to the old folk’s home visit?
A. go
B. went
C. going
D. will go
9. If I eat ____ food, I’ll be very fat.
A. too many
B. many too
C. too much
D. much too
10. I’ll give the book to him if he ___ here next Sunday.
A. will come
B. comes
C. is coming
D. came
11. There ____an English film in our school tomorrow.
A. is going to have
B. will have
C. is going to be
D. has
12. Could you tell us where ____？
A. will the next Olympic Games held
B. the next Olympic Games will be held
C. would the next Olympic Games be held
D. the next Olympic Games would be held
13. When my mother returned last night, I ____ a book.
A. read
B. am reading
C. was reading
D. am going to read
14. What ____ you ____ when it began to rain?
A. do, do
B. were, doing
C. are, doing
D. did, do
15. I’ll wake you up when he ____b ack.
A. will
B. is going to come
C. comes
D. come Answers：1---5 CDBAD 6---10 DAACB 11---15 CBCBC
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 ____(visit) 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.
Answers：
1 feel，will have
2 will see has
3 are, will be
4 will dresses, doesn’t work
5 lives, will keep
6 will buy, is
7 will fight, argue
8 will have, need
9 will send, visits
10 says, will feel 11 will go, doesn’t rain
12 Will have is 13 will writes, gets 14 gets, won’t 15 will major, passes
III完成句子
1.如果他到得晚了，会发作什么事情？What _______________ if he _____________ late?
2. 如果努力学习，你就会取得好成果.If you_________ ________, you ________ good ________.
3. 他如果看电视太久了，他的父母会不快乐.
If he _____ TV too long, his parents _____
_________unhappy.
4. 如果我们为他组织生日聚会，年夜家都会来的.
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，就会上学迟到的.
She_______ ______ _______ ________ if she _____ _____
7. 如果他没有空，他不会帮助你的.If he ____ ____, he ______
____ you.
8. 如果Tom考试不及格，他就没有时机上高中了.
Tom ______have the _____to go to the high school if he
________the exams.
9. 如果这个男孩打烂窗户，屋主会对他生气.
If the boy_______ _______ _______, the house owner _______
_______ _______ _______ _______.
10. 如果明天不下雨，我就出去野餐.
__________________________________________________
Answers
1. was happened，came late? 2 work hard, will get ，success. 3. watch, will be
4 will come, hold, for
5 doesn’t ra in, will, with
6 will be late for school, sleeps late
7 isn’t free, won’t help
8 won’t chance fails
9 breaks the window , will be angry at him
10. If it doesn’t rain tomorrow, I will go out to have a picnic.
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 will go to the beach if it doesn’t rain this week.
12. Will they have a match if the P.E. teacher is busy?
13.He will write a letter to his grandparents if he gets his report card this week.
14. If she gets up la te, she won’t catch the early bus.
15. Peter will major in English if he passes the exams in PekingUniversity.
Translate
1.如果他到得晚了会发作什么事情？
2. 如果努力学习，你就会取得好成果.
3. 他如果看电视太久了，他的父母会不快乐.
4. 如果我们为他组织生日聚会，年夜家都会来的.
5. 如果明天不下雨，我会和你一起去公园的.
6. 如果她睡过头了，就会旅游迟到的.
7. 如果他有空，他会帮助你的.
8. 如果Tom考试不及格，他就没有时机上高中了.
9. 如果她不努力学习，不能学好各门功课.
10.如果这个男孩打烂窗户，屋主会对他生气.
1.What will happen if he comes late?
2.If you work hard, you will get good marks.
3.If he watches TV too long, his parents will be unhappy.
4.Everyone will come if we hold a birthday party for him.
5.If it doesn't rain tomorrow, I will go to the park with you.
6.He will lose chance to the trip if she sleeps over.
7.If he has time, he will help you.
8.Tom won’t have the chance to go to the high school if
he fails the exams.
9.She won’t be good at all the subjects if doesn’t study
hard.
10.If the boy breaks the window, the house owner will be
angry at him.。