初中状语从句全面讲解练习题及答案

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(完整版)初中状语从句全面讲解练习题及答案

初中状从句全面解及答案1、基本含状修、形容、副或整个句子。

往常由副、介短、不定式、分和从句等担当。

用下划划出以下句子中的状，并明是什么在做状：He speaks English very well.He is playing under the tree.I come specially to see you.The boy was praised for his bravery.When she was 12 years old, she began to live in Dalian.If I am not busy tomorrow, I will play football with you.什么是状从句？用来修主句中的，副和形容的从句叫状从句。

依据其含状从句可分状从句，地址状从句，条件状从句，原由状从句，果状从句，比状从句，目的状从句，步状从句。

例句：I will call you as soon as I arrive in Beijing.If he comes back, please let me know.I know how to light a camp fire because I had done it before.2、用法1.状从句(1) 状从句常用when, as, while, before, after, since, till, until,as soon as等来引。

比如：It was raining hard when we got to school yesterday.While he was doing his homework, the telephone rang.As he walked along 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，往常不用未来，用在表示未来的作或状。

初中必备英语状语从句技巧全解及练习题(含答案)及解析

初中必备英语状语从句技巧全解及练习题(含答案)及解析一、初中英语状语从句1．-Shall we go for a picnic in the forest park tomorrow? -Yes, it rains heavily.A．if' B．unless C．until D．When【答案】B【解析】试题分析：句意：---明天我们在森林公园进行野餐怎么样？---是的，如果雨下的不大。

A. if' 如果；B. unless 除非；C. Until直到；D. When当……的时候。

结合句意可知是unless引导的条件状语从句，故选B考点：考查连词的用法。

2．__________ you have tried it on, you can’t imagine how pretty the new style skirt is. A．Because B．Although C．Unless D．When【答案】C【解析】本题的含义是如果你不尝试一下，你将不能想象一下这件新款式的裙子有多么漂亮，unless表示如果不的意思，故本题选C。

3．— What do you think of your junior middle school life?— I think it is colorful, I’m always busy.A．though B．while C．until D．because【答案】A【解析】【详解】本题考查：副词辨析。

选项分析：A. though虽然，尽管。

B. while虽然；然而。

C. until 在…以前；直到…时。

D. because因为。

综合分析前后句，可知此处填 though最合适，完整句意为：— What do you think of your junior middle school life?你觉得你的初中生活怎么样?—I think it is colorful, though I’m always busy.我认为它是丰富多彩的，虽然我总是很忙。

完整版初中状语从句讲解及习题附答案

（一）状语从句概括定义状语从句用作状语，是起副词作用的句子。

地址状语从句能够放在主句从前，也能够放在主句此后，时间、条件、原因和退步状语从句放在句首时需要用逗号和主句分开。

分类依照其作用能够分为时间、地址、原因、条件、目的、退步、方式和比较等状语从句。

作用它能够修饰谓语、非谓语动词、定语、状语和整个句子。

（二）状从句解1.状从句引用法when意“当⋯的候”。

When引从句的能够是延性，也能够是瞬。

并且when 有表示“就在那”while意“在⋯的候，在⋯ 的同”。

While 引从句的必是延性的，生，并主句和从句的作同生（或许相）。

While有能够表示比。

示例A liar is not believed when he speaks the truth.者真也没有人相信。

When he arrives , I’ll call you. When you laugh and smile, your body relaxes.While I was standing at the window, I saw several boys running along the street.While John was watching TV, his wife was cooking.as意“一⋯ 一⋯”。

As 引的作是延性的，生短，一般用于主句和从句作同生； as 也能够一前一后。

after意“在⋯此后”。

表示主句作生在从句作此后。

主句与从句的作关系与before 引的从句相反。

before意“在⋯从前”。

引的从句不用否认形式的，并且当 before 引的从句位于主句此后，有成“就，才”。

当主句用将来，从句是用在；若是 before 引的从句用的是去，主句多用去达成，以便体作的先后。

till意“直到”。

一般情况下能够和 until 互。

若是主句中的是瞬，必用否认形式；若是主句中的是The writer was angry as he was travelling on a train to London because someone had invaded his “ space ”.He smiled as he stood up.With many hungry visitors waiting, don’stay too long at your table after you have finished.If an early exit is necessary, you can leave after a scene is over.You can ’ t watch TV before you finish your homework.Before it ended, the theatrewas almost empty.My father had left for Canada just before the letter arrived.She didn ’event know that it was an earthquake till she saw a shaking ( moving from side to side) light.The fireman worked very hard延性，用必定和否认形式都能够，但表达的意思不一样样。

初中必备英语状语从句技巧全解及练习题(含答案)含解析

A. since 从 ……以来； B. after 在 ……
之后； C. during 在……期间； D. when 当 ……时候。 since 后跟时间状语从句时，表示的是到目
前为止的时间段，从句时态为一般过去时，而主句的时态为现在完成时，故正确答案为
A。
15． ______we cannot change yesterday,we can learn lessons to face tomorrow.
B． because
C． since
D． if
【解析】
句意：这个护士不会离开她的病人，除非她确定病人们都被照顾得很好。
because 因为，
引导原因状语从句； since 自从，引导时间状语从句；既然，引导原因状语从句；
if 如果，
引导。根据句意可知，这里考查
so 所以； because 因
为； before 在 ……之前； if 如果。所以选 B。
考点：考查连词。
19． —____ the workers are very tired, _____they keep on working.
— They are great. We must learn from them.
【解析】句意：你最好今天早点回家，这样我们就可以出去吃大餐了。
A. in order to 为
了，后跟动词原形； B. such that 没有此用法； C. so that 为了，引导目的状语从句； D. in
order+that+ 从句，引导目的状语从句。 we can go out for a big meal 表示目的的完整句子，所以使用连词词组 so that 。故选： C。

中考英语状语从句练习题30题含答案解析

中考英语状语从句练习题30题含答案解析1. I will call you ____ I arrive in Beijing.A. as soon asB. whileC. untilD. since答案：A。

解析：本题考查时间状语从句引导词的用法。

as soon as表示一就，从句用一般现在时表将来，主句用一般将来时，符合句子语境。

while强调主句和从句动作同时进行，这里不符合题意。

until 表示直到，通常主句为否定句，与本题不符。

since表示自从，引导的从句通常用一般过去时，主句用现在完成时，也不符合本题。

2. ____ she was reading, her mother came into the room.A. WhenB. BeforeC. AfterD. Since答案：A。

解析：本题考查时间状语从句引导词。

when可表示当的时候，从句中的动作可以是短暂性的也可以是持续性的，这里read 是持续性动作，when符合语境。

Before表示在之前，After表示在之后，均不符合句子逻辑。

Since表示自从，与本题逻辑不符。

3. We will go to the park ____ it doesn't rain tomorrow.A. ifB. thoughC. becauseD. so答案：A。

解析：本题考查条件状语从句（可视为一种特殊的时间状语从句）。

if表示如果，引导条件状语从句，从句用一般现在时表将来，主句用一般将来时，这里表示如果明天不下雨就去公园。

though 表示虽然，because表示因为，so表示所以，均不符合题意。

4. You can't see the stars clearly ____ there is too much light pollution.A. whereB. whenC. ifD. because答案：D。

解析：本题考查原因状语从句。

初中英语状语从句讲解、练习与答案

初中英语状语从句讲解、练习与答案状语从句状语从句用来修饰主句中的动词，副词和形容词的从句叫状语从句。

根据其含义状语从句可分为时间状语从句，地点状语从句，条件状语从句，原因状语从句，结果状语从句，比较状语从句，目的状语从句，让步状语从句。

1. 时间状语从句(1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。

例如: It was raining hard(rain hard 下大雨) when I 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)在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。

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)在带有till或until引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一直到……时”，谓语动词只能用延续性动词。

如果主句用否定式，其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。

例如:The young man read till the light went out(熄灭).Let’s wait until the rain stops.We won’t start until Bob comes.Don’t 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，而在那个时刻之后，该事情或状况仍将持续。

必备英语状语从句技巧全解及练习题(含答案) 含答案解析

必备英语状语从句技巧全解及练习题(含答案) 含答案解析一、初中英语状语从句1．--- That young man must have something to do with the crime, right?--- I suppose so, he said that he didn't do anything against the law.A．if B．when C．although D．because【答案】C【解析】【详解】句意：---那个年轻人一定和那件罪行有关，对吗?---我想是的，尽管他说他没有做任何违法的事。

本题考查从属连词。

A. if如果，引导条件状语从句 B. when当…时候，引导时间状语从句，C. although尽管，引导让步状语从句，D. because因为，引导原因状语从句，结合句意，可知前后句意是让步关系，故选C。

2．I will go to the English club tomorrow I am too busy.A．since B．if C．unless D．until【答案】C【解析】【详解】句意：明天我将会去英语俱乐部，除非我太忙。

since自从；if如果；unless除非，如果不；until直到…时候。

根据句意可知，这里表示的意思是“如果我不忙，我会…”，故应选C。

3．If you don’t go to the meeting tomorrow, ________ ?A．he will, too B．he won’t, either C．he does, too D．he doesn’t either 【答案】B【解析】【详解】句意：如果明天你不去开会，他也不去。

考查时态。

If引导时间状语从句，遵循“主将从现”原则，从句是一般现在时，所以主句要用将来时，排除C和D，too意为“也”，用于肯定句句末，either意为“也”，用于否定句句末，排除A，故答案选B。

(完整版)初中状语从句讲解及习题附答案(可编辑修改word版)

（二）状语从句详解练习一一. 单项填空1.he’s old, he can still carry this heavy bag.A.ThoughB. SinceC. ForD. So2.---Do you know if he to play basketball with us?---I think he will come if he free tomorrow.es; isB. comes; will beC. will come; isD. will come; will be3.In the zoo if a child into the water and can’t swim, the dolphins may come uphim.A.will fall; to helpB. falls; to helpC. will fall; helpD. falls; helping4.I don’t remember he worked in that city when he was young.A.whatB. whichC. whereD. who5.We will stay at home if my aunt to visit us tomorrow.esB. comeC. will comeD. is coming6.The police asked the children cross the street the traffic lights turned green.A.not; beforeB. don’t; whenC. not to; untilD. not; after7.I was late for class yesterday there was something wrong with my bike.A.whenB. thatC. untilD. because8.I’ll go swimming with you if I free tomorrow.A.will beB. shall beC. amD. was9.In the exam, the you are, the mistakes you will make.A.careful; littleB. more careful; fewestC. more careful; fewerD. more careful; less10.You should finish your lessons you go out to play.A.beforeB. afterC. whenD. while11.I hurried I wouldn’t be late for class.A.sinceB. so thatC. as ifD. unless12.When you read the book, you’d better make a mark you have any questions.A.whichB. thatC. whereD. though13.The teacher raised his voice all the students could hear him.A.forB. so thatC. becauseD. in order14.He took off his coat he felt hot.A.becauseB. asC. ifD. since15.It is that we’d like to go out for a walk.A.a lovely dayB. too lovely a dayC. so lovely a dayD. such lovely a day16.Mary had much work to do that she stayed at her office all day.A.suchB. soC. tooD. very17.I felt very tired, I tried to finish the work.A.AlthoughB. BecauseC. AsD. As if18.the day went on, the weather got worse.A.WithB. SinceC. WhileD. As19.well you can drive, you must drive carefully.A.So long asB. In order thatC. No matter howD. The moment20.Write to me as soon as you to Beijing.A.will getB. getC. gettingD. got二. 根据中文意思完成下列英语句子1.不管他跟我开什么玩笑，我都不生气。

(完整版)初中状语从句讲解和练习附答案

状语从句详解及练习题附答案1时间状语从句：在一个句子中作时间状语的句子。

时间状语的连接词：when(当…时候)while(当…时候)as(当…时候)after(在…以后)before(在…以前) as soon as(一…就) since(自从…到现在) till /until(直到…才) by the time(到…为止)依旧是连接词后加陈述语序。

举例：when当…的时候(大凡情况下主句是将来时的时候，从句要用大凡现在时。

)Mozart started writing music when he was four years old.2原因状语从句：在一个句子中作原因语的句子。

连接词：由连词because, since, as引导,也可由for, now that等词引导。

举例：I didn’t go to school yesterday because I was ill.3条件状语从句连接词：if如果, unless (=if not)除非。

(让步)举例：If it doesn’t rain tomorrow, we will go hiking.4目的、结果状语从句目的状语从句是指在一个句子中充任目的状语的句子。

结果状语从句是指在一个句子中充任结果状语的句子目的状语从句连接词so that, so…that , in order that引导。

结果状语从句连接词so…that, such…that, so much/many…that引导。

举例：so…that如此…以至于The scientist’s report w as so instructive that we were all very excited.5让步状语从句让步状语从句是指在句子中作让步的状语的句子连接词：though, although.，whether…or not举例：Although he is rich, yet he is not happy.状语从句分类1．时间状语从句常用引导词：when, as, while, as soon as, while, before, after, since , till, until分外引导词：theminute,themoment,thesecond,everytime,theday，theinstant,immediately,directly, no sooner … than, hardly …when, scarcely … whenI didn’t realize how special my mother was until I became an adult.While John was watching TV, his wife was cooking.The children ran away from the orchard(果园) the moment they saw the guard.No sooner had I arrived home than it began to rain.Every time I listen to your advice, I get into trouble.2．地点状语从句常用引导词：where分外引导词：wherever, anywhere, everywhereGenerally, air will be heavily polluted where there are factories.Wherever you go, you should work hard.3．原因状语从句常用引导词：because, since, as, since分外引导词：seeing that, now that, in that, considering that, given that, considering that,My friends dislike me because I’m handsome a nd successful.Now that everybody has come, let’s begin our conference.The higher income tax is harmful in that it may discourage people from trying to earn more.Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable.4．目的状语从句常用引导词：so that, in order that分外引导词：lest, in case, for fear that，in the hope that, for the purpose that, to the end thatThe boss asked the secretary to hurry up with the letters so that he could sign them.The teacher raised his voice on purpose that the students in the back could hear more clearly.5．结果状语从句常用引导词：so … that, so… that, such … that,分外引导词：such that, to the degree that, to the extent that, to such a degree that,He got up so early that he caught the first bus.It’s such a good chance that we must not miss it.To such an degree was he excited that he couldn’t sleep last night.6．条件状语从句常用引导词：if, unless,分外引导词：as/so long as, only if, providing/provided that, suppose that,in case that, on condition thatWe’ll start our project if the president agrees.You will certainly succeed so long as you keep on trying.Provided that there is no opposition, we shall hold the meeting here.7．让步状语从句常用引导词：though, although, even if, even though分外引导词：as(用在让步状语从句中必须要倒装)，while (大凡用在句首)，no matter …，spite of the fact that, while, whatever, whoever, wherever, whenever, however, whicheverMuch as I respect him, I can’t agree to his proposal.尽管我很尊敬他，我却不同意他的建议。

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初中状语从句全面讲解练习题及答案1、基本含义状语修饰动词、形容词、副词或整个句子。

通常由副词、介词短语、动词不定式、分词和从句等担当。

请用下划线划出下列句子中的状语，并说明是什么在做状语：He speaks English very well.He is playing under the tree.I come specially to see you.The boy was praised for his bravery.When she was 12 years old, she began to live in Dalian.If I am not busy tomorrow, I will play football with you.什么是状语从句？用来修饰主句中的动词，副词和形容词的从句叫状语从句。

例句：I will call you as soon as I arrive in Beijing.If he comes back, please let me know.I know how to light a camp fire because I had done it before.2、用法归纳1. 时间状语从句(1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。

例如：It was raining hard when we got to school yesterday.While he was doing his homework, the telephone rang.As he walked along 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)在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。

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)在带有till或until引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一直到……时”，谓语动词只能用延续性动词。

如果主句用否定式，其含义是“直到……才……”,“在……以前不……”, 谓语动词可用瞬间动词。

例如：The young man read till the light went out.Let’s wait until the rain stops.We won’t start until Bob comes.Don’t get off until the bus stops.[Practice]I didn’t know he came back ____ I met him in the street. (2007 河北)A. sinceB. WhenC. untilD. after请填入适当的引导词I haven’t heard from him _____ he went to America .We found the books two days ____ he had gone away .Do not leave the room _____ you have finished the test.2. 条件状语从句(1)条件状语从句通常由if, unless引导。

例如：What shall we do if it snows tomorrow?Don’t leave the building unless I tell you to.(2)在条件状语从句里，谓语动词通常用现在时态表示将来的动作或状态。

例如：I’ll help you with your English if am free tomorrow.He won’t be late unless he is ill.(3)“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。

例如：Hurry up, or you’ll be late.=If you don’t hurry up, you’ll be late.[Practice]1. If you ____ late tomorrow morning, you won’t catch the early bus. (2007福建厦门)A. get upB. don’t get upC. will get up请完成下面句子的翻译：如果明天有空,我会和你一起去喂狗._______________________如果明天他不来,我会代替他去的._________________________2、3. 原因状语从句(1)原因状语从句通常由because, since, as引导。

例如：He didn’t come to school because he was ill.Since you can’t answer the question, I’ll ask someone else.(2)because表示直接原因，语气最强。

Because引导的原因状语从句多放在主句之后。

回答由why提出的问题，只能用because。

As和since语气较弱，一般用来表示明显的原因。

由as和since引导的原因状语从居多放在句首。

例如：------Why aren’t going there?----Because I don’t want to.As he has no car, he can’t get there easily.Since we have no money, we can’t buy it.(3)because和so不能同用在一个句子里。

4. 结果状语从句(1)结果状语从句由so…that, such…that, so that引导。

例如：He is so poor that he can’t buy a bike for his son.She is such a good teacher that everybody likes her.(2)so…that语such...that可以互换。

例如：在由so...that引导的结果状语从句中，so是副词，与形容词连用。

其结构是: “...so + 形容词（副词）+ that + 从句”。

例如：He was so glad that he couldn’t say a word.The hall is so big that it can hold 2,000 people.Mother lives so far away that we hardly ever see her.有时上述两种结构是可以互换的。

例如：It was such a wonderful film that all of us wanted to see it again.=The film was so wonderful that all of us wanted to see it again..(3)如果名词前由many, much, little, few等词修饰时，只能用so, 不用such。

例如：He has so little time that he can’t go to the cinema with you.[Practice]( ) 1. This exercise is _____ difficult ______ . ( 山东济南)A. so; that few of us can doB. so; that few of us can do itC. too; for anyone of us to doD. too; for anyone of us to do it2. This math problem is so easy that I can work it out. (改为简单句) (广西柳州)This math problem is _____________________ to work out.5. 比较状语从句比较状语从句通常由as…as, 比较级+ than…等连词引导。

例如：Tom runs faster than John does.( )2. Don’t just believe the advertisement. That kind of camera is ____ it says. (河北) A. as good as B. not as good asC. as well asD. not as well as7. 让步状语从句(1)让步状语从句通常由although, though等连词引导。

例如：Though he is young, he knows a lot.(2)although(though)不能用在同一个句子中。

例如：8. 地点状语从句地点状语从句常常由where来引导。

例如：Go where you like.Where there is a will, there is a way.[Practice]( )1.You should let your children play _________ you can see them.A. whereB. whenC. in whichD. that( )2.The school was built _________ there had once been a church.A. whereB. whenC. in whichD. that考验一下自己吧1.I’ll let you know ____ he comes back.A. beforeB. becauseC. as soon asD. although2. We will work ____ we are needed.A. wheneverB. becauseC. sinceD. wherever3 Read it aloud _____ the class can hear you.A. so thatB. ifC. whenD. although4._____ you go, don't forget your people.A. WheneverB. HoweverC. WhereverD. Whichever5. It is about ten years _____ I met you last.A. sinceB. forC. whenD. as6 They will never succeed, _____ hard they try.A. becauseB. howeverC. whenD. since7 _____ we got to the station, the train had left already.A. IfB. UnlessC. SinceD. When8. I'll stay here _____ everyone else comes back.A. even ifB. as thoughC. becauseD. until9. Although it's raining, _____ are still working in the field.A. theyB. but theyC. and theyD. so they10. You'll miss the train ______ you hurry up.A. unlessB. asC. ifD. until11. When you read the book, you' d better make a mark _____ you have any questions.A. at whichB. at whereC. the placeD. where12. We'd better hurry ______ it is getting dark.A. andB. butC. asD. unless13._____ he comes, we won't be able to go.A. WithoutB. UnlessC. ExceptD. Even14. I hurried _____ I wouldn't be late for class.A. sinceB. so thatC. as ifD. unless15. _____ I catch a cold, I have pain in my back.A. Every timeB. ThoughC. EvenD. Where16. Helen listened carefully _____she might discover exactly what she needed.A. in thatB. in order thatC. in caseD. even though17 The child was __ immediately after supper.A. enough tired to go to bedB. too tired to go to bedC. so tired that he went to bedD. very tired, he went to bed18. _ born in Chicago, the author was famous for his stories about New York.A. SinceB. OnceC. WhenD. Although19 _ we stood at the top of the building, the people below were hardly visible.A. AsB. AlthoughC. UnlessD. In spite of20. _____ David goes, he is welcome.A. WhicheverB. HoweverC. WhereverD. Whatever21. The house stood ____ there had been a rock.A. whichB. at whichC. whenD. where22. After the new technique was introduced, the factory produced ____tractorsin 1988 as the year before.A. as twice manyB. as many twiceC. twice as manyD. twice many as23. John plays football _____, if not better than, David.A. as wellB. as well asC. so wellD. so well as24. Although he is considered a great writer,___________.A. his works are not widely readB. but his works are not widely readC. however his works are not widely readD . still his works are not widely read25 ___ the day went on, the weather got worse.A. WithB. SinceC. WhileD. As40.—What was the party like?—Wonderful. It' s years _____ I enjoyed myself so much.A. afterB. whenC. beforeD. since26. After the war, a new school building was put up _____ there had once been a theatre.A. thatB. whereC. whichD. when27 ____ difficult the task may be, we will try our best to complete it in time.A. No matterB. No wonderC. ThoughD. However28.It was ____ that she couldn’t finish it by herself.A. so difficult a workB. such a difficult workC. so difficult workD. such difficult work29 I won’t believe you___ I have seen it with my own eyes.A. beforeB. untilC. afterD. when30. They didn’t start the work ___ their teacher came back.A. untilB. whileC. as soon asD. If(II. 填入适当的引导词:1. I haven't heard from him _____ he went to America.2. He won't be here _____ he is invited.3. He will not go to the cinema _____ he is very busy.4. We found the key _____ she had left it.5. We found the books two days ____ he had gone away.6. We had no sooner got to the station _____ the train left.7. He speaks English ______ he were an Englishman.8. He is explaining clearly _______ they could understand.9. Do not leave the room _____ you have finished the test.10. She sang ______ she went along.参考答案：I. 选择填空：1-5 CADAC 6-10 ABCBA 11-15 DDCAB 16-20 DABAD 21-25 CABBA26-30 BCCBD 31-35 BACDD 36-40 ADCDD 41-45 CCBAD 46-50 DBCBD 51-53 CDDII. 填入适当的引导1. since 2. unless 3. because 4. where 5. after 6. than7. as if8. so that 9. before10. as中考真题(2016苏州中考）To make your DIY work perfect,you had better not start __you get all the tools ready.A whenB while C. before D. after(.河北省卷,42. 1) Peter likes reading a newspaper ______he is having breakfast.A. untilB. whileC. becauseD. though(江苏省盐城市12. 1)Many students didn’t realize the importance of study_____they left school.A.whenB.untilC.asD.after(2010.四川省内江市39. 1)I don’t know if it______tomorrow.If it______,we won’t go on a picnic.A.rains;rainsB.will rain;rainsC.will rain;will rain(浙江省衢州市23. 1) You should go over your test paper _____ you hand it in .A. beforeB. thoughC. becauseD. as soon as(.江苏省无锡市.12. 1)Scientists say it may be a few years ______it is possible to test the new medicine on patients.A.becauseB.afterC.beforeD.since(2010年上海市37. 1)We will have no water to drink _______we don’t protect the earth.A.untilB.beforeC.thoughD.if(江苏省扬州市，，41)—Could we play football in your playground,Sir?--No,_______you have the principal’s note.A.ifB.unlessC.becauseD.since(浙江省湖州市，22，1)—Is everyone here today?--No.Tom is at home_____he has got a bad cold.A.becauseB.ifC.untilD.unless山西省，27，1)In summer , food goes bad easily ________ it is put in the refrigerator.A. untilB. ifC. unless(河南省，25，1)( ) It’s difficult to make her dream come true，she never gives upA ThoughB UnlessC BecauseD If(•山东省莱芜市，27，1)--I hear Jack Chan will come to Laiwu next week.--Really? _______ he comes, my younger sister will be very happy,A．If B．Until C．Unless D．Before (贵州省铜仁市，35，1)— May I go to the concert with you?—I’m afraid not ____ you have a ticket, because I have only one.A. sinceB. ifC. unlessD. though(2010•山东省菏泽市，27，1)Mary spends a lot of money on clothes _______ her family is not rich.A. becauseB. thoughC. ifD. so(福建三明29. 1)Many children like fried chicken _______it is unhealthy food.A.ifB.becauseC.although(广西南宁32. 1)Mr.Brown knew nothing about the good news ______his wife told it to him.A.beforeB.afterC.sinceD.if(四川达州29. 1)I don’t know if Jack . If he , call me, please.A. will come; will comesB. comes; comeC. comes; will comeD. will come; comes(天津市，41，1)We won’t start the meeting ______our teacher arrives.A.thoughB.untilC.whileD.or(辽宁省沈阳市，8，1) ____ it snowed heavily yesterday, nobody in our class missed the lesson．A．Though B．Because C．Unless D．Since。