If 引导的条件状语从句
If 引导的条件状语从句
If 引导的条件状语从句遵循主过从过、主将从现的原则。
主将从现（主情从现、主祈从现）
If it rains tomorrow,I won’t climb the hills.
If it doesn’t rain tomorrow,I will go to the countryside with my friends.
If 引导的条件状语从句
If 引导的条件状语从句遵循主过从过、主将从现的原则。
主将从现（主情从现、主祈从现）
If you will help me,I'll finish it on time.
We may go out if it's fine tomorrow.
If you finish your homework,you can watch TV.
Please call me if you go shopping next Sunday.
If I go there，I'll take her some flowers.
We'll stay at home if it rains tomorrow.
Please call me if he’s at home.
If you work harder,you’ll pass the exam.
She will visit her grandpa if she has time tomorrow.
We’ll take a taxi to the city if the train doesn’t arrive on time.
The teacher will be angry if he is late.
If引导的条件状语从句与unless引导的条件状语从句的转换
If+否定形式=unless+肯定形式
You won’t pass the exam if you don’t work hard.
=You won’t pass the exam unless you work hard.
If you don’t go to bed earlier,you will feel tired in the morning.
=Unless you go to bed earlier,you will feel tired in the morning.
If it doesn’t rain,he will play with me tomorrow.
=Unless it rains,he will play with me tomorrow.
If she doesn’t come,I’ll go shopping alone
=Unless she comes,I’ll go shopping alone.
if条件状语从句与祈使句,and/or＋一般将来时的句子转化
If you get up early,you’ll get there on time.
=Get up early,a nd you’ll get there on time.
=Get up early,or you won’t get there on time.
If you get up early，you won't be late for school.
=Get up early，and you won't be late for school.
=Get up early，or you will be late for school.
If you don’t get up early,you won’t c atch up with the early bus. =Get up early,and you will catch up with the early bus.
=Get up early,or you won’t catch up with the early bus.
if条件状语从句与without的句子转化
If there is no water,we can't live.
=We can't live without water.
If there is no water,fish will die.
=Fish will die without water.
If you help me,I’ll finish the work soon.
=With your help,I finish the work soon.
if条件状语从句与祈使句,and/or＋一般将来时的句子转化
If you get up early,you’ll get there on time.
=Get up early,and you’ll get there on time.
=Get up early,o r you won’t get there on time.
If you get up early，you won't be late for school.
=Get up early，and you won't be late for school.
=Get up early，or you will be late for school.
If you don’t get up early,you won’t catch up with the early bus.
=Get up early,and you will catch up with the early bus.
=Get up early,or you won’t catch up with the early bus.
1. your friend ,I'll tell you.
https://www.wendangku.net/doc/309383097.html,e
B.will come
https://www.wendangku.net/doc/309383097.html,es
D.are coming
2. If you go to college，you a good education.
A.will get
B.get
C.gets
D.got
3.I want to know if they tomorrow.
https://www.wendangku.net/doc/309383097.html,e
B.will come C comes D.came
4.Take enough exercise, you'll be in good heath.
A.or
B.so
C.but
D.and
5.If it (not rain),he (play)basketball with
me tomorrow.
6.If Uncle Lan ______(come),I______(call)you up.
7.She must see a dentist if she______(have)a toothache.
8.Please wake me up if he______(come)back.
9.Hurry up！Or you ______(be)late again.
10.If you don’t be quic k,you (be)late.
1.We won’t wait for you you can’t arrive on time.
A.until
B.when
C.after
D.if
2.The children will go to the zoo if it (not rain)this Saturday.
3.If she work hard,she be able to go to colleage.
A.not,not
B.won’t,won’t
C.won’t,doesn’t
D.dpesn’t,won’t
4.If I run every day,I (be)healthier.
5.If it (not rain),he (play)with me tomorrow.
6.She must see a dentist if she (have)a toothache.
7.Study hard,or you (not pass)the test.
8.If you (not go)to bed earlier,you will feel tired in the morning.
9.If he (be)free tomorrow,he will come to your birthday party.
10.We will go to the zoo if it (not snow)tomorrow.
11.If it is fine tomorrow,I (go)for a filed trip.
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 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.or B.but C.and D.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。答案：C 黑色陷阱：本题的陷阱是句型，本句型区别于“祈使句＋or”，这个句型的含义是“……，不然的话/否则……”。 绿色通道：祈使句后面既可以加 and ，也可以加 or ，所以要全面分析句意，再作决定。 小试牛刀：用 if 连接下列句子 1、Go to bed early and you will have a good rest. 2、Hurry up, or you ’ll miss the bus. 三、if 从句与主句具有以下特点： 1．If 从句中用一般现在时，表示未来的一种条件，从句中可以加时间状语。 e.g.If yo u can’t come tomorrow, we can hold the party a little later.明天你如果不能来，我们可迟一点举行宴会。
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. studies C. will study D. studied 2. I want to know if Mary to the party tomorrow. A. go B. went C. will go D. goes 3. Everyone must dress up. If you, they won’t let you in. A. don’t B. won’t C. can’t D. mustn’t 4. Mary will go to Sanya if she a five-day trip. A. have B. had C. will have D. has 5. If he comes late,he will miss the train.
A. and B. so C. / D. or II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 with him. 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. 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引导的条件状语从句
语法10单元语法再现梁老师组稿2017-12-31 一、观察下面的句子 If you go to the party, you will have a great time. If you do , you will be late. If you do,you will be sorry. If they have it today, half the class won’t come. If we ask people to bring food, they will just bring potato chips and chocolate. 以上几个句子中“if”有相同的含义“如果”，引导条件状语从句逗号后面的句子是主句。整个连起来的大句子叫主从复合句。 注意主句和从句的时态有什么特点。 总结：If引导的条件状语从句用一般现在时，主句用一般将来时。 简称“主将从现” 练习：（1）If you ______(come)here, you ___________(be) happy. (2) If it _________(rain) tomorrow, we__________(not, go) to the park. (3) If he _________(come) here, I ___________(call) you. (4) If it ___________(not rain), we _________(have) a picnic(野餐). (5) If we do that, more people _________(want) to play the games. 页脚内容1
If引导条件状语从句的详细用法解答
If引导条件状语从句的详细用法解答 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/can If 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/should 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。 4．if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)如果把冰加热，它就会化成水。5．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. 如果你是在找彼得，上楼就会找到他。 6．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. 如果你吃完了，我就叫服务生来算账 注意： 学习" if " 引导的条件状语从句的用法,现在总结一下: if 条件句不一般,几个要点记心间; 条件句,放在前,逗号要放句中间。 条件句表可能，主句多用将来时； 条件句表事实，主句常用现在时。
if条件状语从句专练
If条件状语从句专练 1. If I ___(go) to the party, they ___(be) upset. 2. If I ___(take) a taxi, it ___(be) too expensive. 3. If she ___(finish) work early, she can go home. 4. If the weather is fine, we ____(go) for a walk. 5. If I ___(have) time tonight, I will finish the book. 6. If it ___(rain) next Sunday, we won`t be able to plant trees. 7. If she ___(arrive) home, she will phone
me. 8. Unless you speak to him first, she ___(not speak) to you. 9. If he ___ (call) to you, tell him I will ring back. 10. I don`t know if it ___(rain) tomorrow. 11. Have a rest if you ___(be) tired. 12. Don`t come unless I ___(call) you. 13. I don`t know if he ___(come) tomorrow, but if he __(come), I`ll let you know. 宾语从句与状语从句混合 1. ——Helen, do you know if Martin
初中英语——If引导的条件状语从句
初中英语――if引导的条件状语从句 在主从复合句中修饰主句中的动词、形容词、副词等的从句叫做状语从句，状语从句一般可分为时间状语从句、地点状语从句、原因状语从句、目的状语从句、结果状语从句、条件状语从句、让步状语从句、比较状语从句和方式状语从句九种。 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。 4.once引导的条件状语从句 once引导的条件状语从句，意为“一旦...，就”，从句可置于主句前或后 Once you begin,never stop. 一旦开始，就绝不要停止 Maths is easy to learn once you understand the rules. 一旦你理解了规则，数学就不难学了。 提示：在条件状语从句中，用一般现在时代替一般将来时，用一般过去时代替过去将来时。 If the weather is bad next week, we'll put off the climbing. 如果下周天气不好，我们将推迟爬山。 Father told me if i worked hard he would buy me a gift. 爸爸告诉我，如果我努力学习，他会给我买一份礼物。
if引导的条件状语从句练习题
If条件状从句练习 1. If there no buying and selling of animals, there no killing in nature. A. is; will he B. will be; will be C. is; is D. will be; is 2. I’m waiting for my friend._, I'll go shopping alone. A. If she comes B. If she won't come C. If she doesn't come 3.The students ____ have a sports meeting this weekend if it _____。A. won’t; rains B. will; rains C. won’t; will rain D. are going to; is going to rain 1.If you _____ to the party, you’ll have a great time A. will go B. went C. go D. going 2.–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 3. What will you do if you _____ to the old folk’s home visit? A. go B. went C. going D. will go 4. If I eat ____ food, I’ll be very fat. A. too many B. many too C. too much D. much too 5. I’ll give the book to him if he ___ here next Sunday. A. will come B. comes C. is coming D. came 6. 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 7. We’ll go to the farm and help the farmers with the apple-picking if it ____ tomorrow. A. won’t rain B. will be rainy C. doesn’t rain D. isn’t raining 8. There is going to _______ a sports meeting next week. If it ________, we’ll have to cancel it. A. be, will rain B. have, will rain C. be, rains 9. Y our teacher will be unhappy if you _______ to school late. A. come B. will come C. are coming D. came 10．I don’t know if he __. If he __ , please let me know. A. comes, comes B. will come, will come C. will come, comes D. comes, will come 11．Y ou will stay healthy _______ you do more exercise, such as running and walking. A. if B. how C. before D. where 12.If she here tomorrow, I will tell you. A. comes B. will come C. come D. came 13. I’m waiting for my friend. , I’ll go shopping alone. A. If she comes B. If she doesn’t come C. If she won’t come 14. —Tom wants to know if you will have a picnic tomorrow. —Y es. But if it ______, we’ll play chess instead. A. will rain B. rained C. is raining D. rains 15. If Tom _____ the game, we'll give him a surprise". A. win B. wins C. won D. miming 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.
if引导的条件状语从句专题练习
滨淮农场学校九年级英语专题复习三：if引导的条件状语从句 一、用所给词的适当形式填空 you _______(feel) tired, you ____________ (have) to have a rest. 2. If there ________(be) fewer trees, there ____________( be) more pollution. 3. If Marcia __________(live) alone, she ____________( keep) a pet parrot. 4. Lana _______( buy) a new dress if the old one _________(be) out of style. 5. Peter ________( send) me a beautiful souvenir if he __________(tour) Spain. 6. If Mr Green _____(say) I am hard- working, my parents ________( feel) glad. 二、单项选择 （）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. 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 （）4. – 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 （）5.—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 （）6. What will you do if you _____ to the old folk’s home v isit A. go B. went D. will go （）7. If I eat ____ food, I’ll be very fat. A. too many B. many too C. too much D. much too （）8. I’ll give the book to him if he ___ here next Sunday. A. will come B. comes C. is coming D. came
if引导的条件状语从句练习题
If条件状从句练习 【2011陕西】24. If there no buying and selling of animals, there no killing in nature. A. is; will he B. will be; will be C. is; is D. will be; is答案:A 【解析】考查点:本题考查if引导的状语从句的 时态。if 意为“如果”。引导条件状语从句,主将从现。故选A。 【2011黑龙江绥化市】25. Fm waiting for my friend._, I'll go shopping alone. A. If she comes B. If she won't come C. If she doesn't come 答案:C【解析】考查从句的时态。If引导的条件状语从句,主句用将来时,从句用一般现在时。根据句意:如果他不来,我就独自去购物。故选C。 【2011雅安】10.The students ____ have a sports meeting this weekend if it _____。A. won’t; rains B. will; rains C. won’t; will rain D. are going to; is going to rain答案:A【解析】考查if引导的条件状语从句用法。if意为“如 果”,引导条件状语从句,主句用一般将来时,从句用一般现在时态。句意为“如果明天下雨我们就不举行运动会了”。故选A。 ()1.If you _____ to the party, you’ll have a great time A. will go
If 引导的条件状语从句
If 引导的条件状语从句 If 引导的条件状语从句遵循主过从过、主将从现的原则。 主将从现（主情从现、主祈从现） If it rains tomorrow,I won’t climb the hills. If it doesn’t rain tomorrow,I will go to the countryside with my friends. If 引导的条件状语从句 If 引导的条件状语从句遵循主过从过、主将从现的原则。 主将从现（主情从现、主祈从现） If you will help me,I'll finish it on time. We may go out if it's fine tomorrow. If you finish your homework,you can watch TV. Please call me if you go shopping next Sunday. If I go there，I'll take her some flowers. We'll stay at home if it rains tomorrow. Please call me if he’s at home. If you work harder,you’ll pass the exam. She will visit her grandpa if she has time tomorrow. We’ll take a taxi to the city if the train doesn’t arrive on time. The teacher will be angry if he is late. If引导的条件状语从句与unless引导的条件状语从句的转换 If+否定形式=unless+肯定形式
if引导的条件状语从句-与专题练习
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.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． 2.if从句用一般现在时，主句用may/might/can/must If the fog gets thicker the plane may/might be diverted. 3.if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.
if_条件状语从句的时态练习_初中习题集概要
if 条件状语从句的时态练习 Ⅰ.单项选择（15分） 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
总结好的：if引导的条件状语从句
if引导的条件状语从句 if 1) 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. (3)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。 【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? 2. If it ________（not snow）tomorrow, we will feel unhappy. 3. You mustn’t go to school if you ________（be）still in bed. 4. If he _______（be）at home at that time, he would know it. 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. 9．If she ______ (finish ) work early ,she ______(go) home. 10．If the weather______（be）fine，we_______(go)for a walk .
初中英语八年级下册if条件状语从句专练
新课标人教版初中英语八年级下册if条件状语从句专练 I.选择填空。 1. It will cost you much money __________ you travel around the world . A. if B. but C. or D. so 2. ____________you start out early tomorrow , you can get there before 10 o’clock . A . While B. When C. If D. Until 3. -----What _________if I wear jeans ? -----They won’t be happy . A. happens B. happened C. is happening D. will happen 4. Jenny will come to see her parents if she __________free tomorrow . A . will B. is C. was D. is going to be 5. If it __________next Sunday , we will go camping . A. won’t rain B. is going to rain C. doesn’t rain D. don’t rain II. 从括号内选择正确的词语，使句意完整。 1. You __________( have ; will have ) a great time if you go to the party . 2. We will fly kites if it __________ ( is windy; will be windy ) next Saturday afternoon . 3. If I go to the movies , I ___________( won’t finish ; don’t finish ) my homework. 4. You ________( ask ; may ask ) the teacher if you have any questions . 5. My brother wants to know if Dad __________( takes ; will take ) him to the Great Wall tomorrow . 6. Please tell me if she ____________( will come ; comes ) to my birthday party . III. 用括号内动词的相应形式填空。 1. She may be a lawyer if he _________(study )the law hard . 2. If it _________( rain) tomorrow , I won’t go shopping . 3. My mother ________( not let ) me go to a movie tonight if I don’t wash the clothes . 4. Could you tell me if there ____________( be ) a meeting next week ？ 5. If you ____________( see ) him next time , please ask him if he __________ ( go ) to work in Shanghai . 6. If he ____________( keep ) on working hard at English , he can learn it well. IV. 按要求改写句子。 1. Stay at home and you can watch the soap operas .( 改为条件状语从句) _______you ________ at home , you can watch the soap operas . 2. Ride your bike , or you’ll be late . ( 改为同义句) If you _____________ ___________ your bike , you’ll be late . 3. Many children Won’t come if there is a heavy snow tomorrow . (对划线部分提问) ________ will _________ if there is a heavy snow tomorrow ? 4.If there is no water , the fish will die . ( 同义句) The fish will die ___________ _______________ . 5. I’m going to travel around the world if I have a lot of money . (对划线部分提
初中英语If引导的条件状语从句
初中英语――if引导的条件状语从句 在if 引导的条件状语从句中，if 和条件句位置灵活，可直接放在主句后面，若if 条件句放句首，从句后面要加逗号，和主句隔开。还要注意前后时态一致原则.引导条件状语从句的连接词主要有：if(如果）、unless（除非）或as long as （只要）等。unless在意思上等于if...not。 一、条件状语从句用法 1、引导条件状语从句最常用的连词是if,由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。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。 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。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。 2、unless = if...not.除非,若不,除非在……的时候 例如：Let's go out for a walk unless you are too tired. =If you are not too tired, let's go out for a walk. Unless it rains, the game will be played. 除非下雨,比赛将照常进行。 二、时态问题 在条件状语从句中，要注意“主将从现”的规定，即主句用一般将来时，从句用一般现在时表示将来时。例句： I will come to see you if I have time. 我有时间，我就来看你。 三如果if 条件句谈论的是重复发生和预示要发生的情景和事件，则主从句大多用一般现在时态。如： If bears are in danger ,they attack people. 误区提醒 if 既可以引导条件状语从句，表示“如果”，也可以引导宾语从句，表达“是否”。辨别它在这两种从句中的时态是我们经常容易出错的地方。另外，if 和unless的用法也需注意。 典型例题：----I wonder if your wife to the party. ----If your wife _________, so will mine。. A. will go，go B. will go, goes C.goes, will go D. will go, will go 解析：第一句中if表示“是否”，引导宾语从句，用将来时will go；第二句“如果你的妻子去，我的妻子也去”，if引导条件状语从句，用一般现在时表示将来时。your wife，单三人称主语，所以用goes 。