比较状语从句讲解及精选练习(附答案)

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中学英语语法比较状语从句精讲精析(含答案)

中学英语语法比较状语从句精讲精析（含答案）比较状语从句中常用than,so(as)...as,the more...the more等引导。

表示同级比较,肯定句用as...as...,否定句用not as/so...as...。

than表示不同程度的比较,主句中用形容词或副词的比较级。

例句:①He runs less faster than me.他跑的不如我快。

②The film was not so(as) good as I had expected.这部电影比我期望的差。

③The busier he is, the happier he feels.他越忙越感到开心。

1.___________ online shopping has changed our life,not all of its effects have been positive.2.___________you do,don’t be a bystander.3.My grandfather still plays tennis now and then,___________he is in his nineties.4.__________the job takes a significant amount of time，most students agree that the experience is worth it.5.You can come and have a talk with me__________it is convenient to you.6.No sooner had Mo Yan stepped on the stage__________the audience broke into thunderous applause.7.___________he trained hard,he didn’t pass the diving test.8.Old_____ he is ,he still lives an active life.9.__________I really don’t like art,I find this painting impressive.10.___________you go,don’t forget safety.11.__________team wins, I won’t care about too much of it.12.That stubborn CEO turned a deaf ear to the suggestions from his employees,_____________he knew the suggestions were very valuable.13.Clever _________ he is, he can’t figure out what the word puzzle me ans.14.Wise man _______ he was,he made a mistake in his marriage.15.I will wait for you __________ late it is.16.The child ate__________we gave him.17.He is more successful ________ we had expected.18.His handwriting is not as good _______yours.19.Pop star__________ she is,she still needs to improve.20.Call me when you arrive,____________ time it is.练习keys：1.While 2.Whatever\No matter what 3.though\even though 4.Though\Although\While 5.whenever\no matter when 6.than 7.Though\Although\While 8.though\as 9.Though\Although\While 10.Wherever\No matter where9.Whichever\No matter which 12.even though 13.as\though 14.as\though 15.however \no matter how 16.whatever 17.than 18.as 19.as\though 20.no matter what。

(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。

英语状语从句讲解及练习题(附答案)

（一）状语从句概述定义状语从句用作状语，是起副词作用的句子。

位置状语从句可以放在主句之前，也可以放在主句之后，时间、条件、原因和让步状语从句放在句首时需要用逗号和主句隔开。

分类根据其作用可以分为时间、地点、原因、条件、目的、让步、方式和比较等状语从句。

作用它可以修饰谓语、非谓语动词、定语、状语和整个句子。

（二）状语从句详解1. 时间状语从句引导词用法示例when 意为“当…的时候”。

When引导从句的谓语动词可以是延续性动词，也可以是瞬间动词。

并且when有时表示“就在那时”A liar is not believed when he speaks the truth.说谎者讲真话时也没有人相信。

When he arrives, I’ll call you. When you laugh and smile, your body relaxes.while 意为“在…的时候，在…的同时”。

While引导从句的谓语动词必须是延续性的，发生时间较长，并强While I was standing at the window, I saw several boys running along the street.While John was watching TV, his wife was cooking.调主句和从句的动作同时发生（或者相对应）。

While 有时还可以表示对比。

as 意为“一边…一边…”。

As引导的动作是延续性的，发生时间较短，一般用于主句和从句动作同时发生；as也可以强调一前一后。

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.after 意为“在…之后”。

表示主句动作发生在从句动作之后。

比较状语从句讲解及精选练习(附答案)

比较状语从句比较状语从句表达人或事物的属性或特征的不同程度。

主要运用于形容词和副词的原级、比较级及最高级的句子之中。

原级：as…as（和……一样），not so（as）…as …（和不一样）；比较级：more…than（更）；最高级：The most…in/of，the + 形容词+est…of/in。

一．原级比较1.as+原级+as（第一个as是副词，含“如此”的意思，在主句说明所比内容的程度；第二个as是连词，含“比”或“如此”的意思，引导从句）。

例如：Our classroom is as big as theirs. 我们的课室跟他们的一样大。

I hope you like it as much as I do. 我喜欢你跟我一样喜欢它。

在这种结构中，比较成分的前面常用表示倍数的词如···times（···倍），twice（两倍）等来表示相比较的两个成分相差的倍数，通常译作“像···几倍那样多”，“是···的几倍”。

例如：The speed of sounds in water is about four times as great as in air.声音在水中的速度是空气中的4倍左右。

This book is twice as thin as that one. 这本书的厚度是那本书的二分之一。

2.not so / as ···as（不像···那样，不如）。

第一个as/so是副词，在主句中作状语，修饰其后的形容词/副词；第二个as是连词，引导从句。

not so…as比not as…as用得比较普遍。

例如：It is not as easy as you think. 事情并不像你想的那么容易。

The work did not go so smoothly as we hoped. 这工作并不像我们希望的那样顺利。

高中英语状语从句详解及习题精练附答案

状语从句一、知识框架二、知识梳理（一）定义在复合句中修饰主句中的动词、形容词和副词的从句叫状语从句。

状语从句根据它表达的意思不同可分为时间状语从句、地点状语从句、条件状语从句、比较状语从句、目的状语从句、结果状语从句、方式状语从句、让步状语从句和原因状语从句等。

状语从句如果放在主句前通常用逗号分开，放在主句之后一般不用逗号。

（二）九类状语从句一）时间状语从句1、从属连词分类1）基本类包括when, while, as, whenever, before, after, since, till, until, once (一旦), as soon as等。

Did anyone call when I was out?We have known each other since we were children.You’ll feel better after you take the pills.Make sure that all the lights are off before you go to bed.2）名词类包括the moment, the minute, the second, the instant, every time, each time, (the) next time, the last time, any time, the first time等。

Tell me the moment (that) you get the results.Next time you come in, please close the door.He felt nervous each time she spoke to him.The last time we talked he said he needed another two days.3）副词类如immediately, directly, instantly, presently等。

比较、让步、地点状语从句讲解和练习(答案)(可编辑修改word版)

比较状语从句通常由as…as, 比较级+ than…等连词引导。

句型：1、A+ be +as + 原级+ B2、A+ be +比较级+ than + B例如：This classroom is as big as that one. This classroom is not as big as that one.This classroom is bigger than that one. This classroom is not bigger than that one. 小试牛刀：There are many league members in class 2 in Class 4.Suzhou is not (beautiful) Hangzhou.Iron is （useful）any other metal.●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.Although I am tired, I must go on working.(2) 注意体会汉语和英语某些地方的不同，在英语中的although 和but 不能同时使用，但可以与yet 连用。

例如：Although he is a foreigner ,he likes China very much.He is a foreigner, but he likes China very much.(3)in spite of +名词或动名词，表示“尽管”例如：Although I was tired, I couldn’t fall asleep.. 尽管很累，但是我睡不着。

=In spite of being tired, I couldn’t fall asleep.小试牛刀：1. Although it was raining, still worked in the fields.A. but theyB. and theyC. theyD. and yet they2. there were only five soldiers left at the front, they went on fighting.A. Because; soB. If; andC. Though; butD. Though; /3. she is very old, she can still work eight hours a day.A. Because; soB. Though; butC. As; yetD. Though; yet4. being poor, he often gives some money to the poor.A. BecauseB. ThoughC. AsD. In spite of●地点状语从句（1）地点状语从句常常由where 来引导。

状语从句讲解与习题附答案解析

状语从句讲解与习题附答案解析状语从句（⼀）状语从句概述（⼆）状语从句详解1. 时间状语从句2.地点状语从句3.条件状语从句4.原因状语从句5.⽬的状语从句6.结果状语从句7.让步状语从句8. ⽐较状语从句9.⽅式状语从句练习⼀⼀. 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.A. comes; 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 up ______ him.A. will fall; to helpB. falls; to helpC. will fall; helpD. who5. We will stay at home if my aunt ________ to visit us tomorrow.A. comesB. 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. 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. 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。

状语从句讲解及练习题50题-有答案

状语从句1.在主从复合句中修饰主句中的动词，形容词，副词等的从句叫状语从句。

可分为，时间状语从句，地点状语从句，原因，目的，结果，条件，让步，比较和方式状语从句。

2.时间状语从句起时间状语作用的句子；可放在句首，句中和句尾常用引导词：when，while, as, after, before, since, till, until, the moment, hardly … when , no sooner … thanwhen, while, as的用法1)when 用法最广，常可代替while和as, 在while 引导的从句中，动词只能是延续性的When the fire broke out, all the students were sleeping soundly.The telephone rang while I was taking a bath.2)当两个表示时间延续的动作同时发生而又有对比意味的时候，用while，在这样的复合句中，主句从句的时态通常是相同的。

Father was preparing a report while I was playing PC games.3)常用as 的情况：一边…一边；表示随着短暂动作的发生，另一行为伴随发生As he talked on, he got more and more excited.until和till的用法表示“一直到…”时，主句和从句都用肯定式；I will wait until/ till the concert is over.表示“直到…才…”是，主句用否定，从句用肯定式。

They can’t go until Sunday.since的用法since引导的从句中，如果是持续性动词，往往理解为某一状态的终止。

He has written to me frequently since he was ill. 自从他病好以来，他常写信给我。

中学英语语法比较状语从句精讲(含答案)

中学英语语法比较状语从句精讲（含答案）1.__________birds use their feathers for flight, some of their feathers are for other purposes.2.If you don’t understand something, you may research, study, and talk to other people _______you figure it out.3.Located___________the Belt meets the Road, Jiangsu will contribute more to the Belt and Road construction.4.Wherever you live,whatever you do and ___________you are,join Litterati to make the world a cleaner and healthier place to live in.5.In middle school,he was really good at science and math.___________most kids were going to the movies on weekends,George preferred to design his own special projects.6.George got excellent grades and was admitted to both Harvard and Yale,but he decided to go to Stanford___________ there were more opportunities for people who wanted to work in Silicon Valley.7.Before paper was invented, strips of bamboo were the most important writing medium,more widely used than silk,___________they were cheaper, resistant to corrosion,and more abundant.8.I just can’t help buying things________ I need them or not.9.__________he asked the villagers on the banks of the river where he could find the legendary artist, they smiled and pointed down the river.10.On our way to the house, it was raining ___________that we couldn’t help wondering how long it would take to get there.It was in the middle of Pearl City. 11.The doctor shares his phone number with the patients___________they need medical assistance.12.Tom is so independent that he never ask his parents’ opinion _________he wants their support.13.Let’s not pick these peaches until this weekend __________they get sweet enough to be eaten.14.__________ you can sleep well,you will lose the ability to focus,plan and stay motivated after one or two nights.15.__________ we don’t stop climate change,many animals and plants in the world will be gone.Part1:1.Although/Though/While 2. until/till 3. where4.whoever5.While\Though\Although6.because\since7.because\as8.whether 9.When\As 10.so 11.in case 12.unless 13.so that 14.unless 15.If。

初中英语语法状语从句讲解及练习附答案

初中英语语法专题讲座——状语从句状语从句在复合句中作状语，修饰动词、形容词或副词等。

状语从句可以表示时间、条件、原因、地点、目的、结果、让步、方式、比较等意义。

知识梳理：提纲挈领，抓住重点和难点！? 各类状语从句连接词（短语）一览表：时间?when, while, as, as soon as, since, until, after, before，as long as（长达……之久）条件?If, unless,as/so long as(只要)原因?As, because, since，as/so long as(既然,因为)地点?Where目的?So that(为了), in order that结果?So that（方便）, so…that, such…that让步?though, although, even if, however方式?As比较than, (not)as…as,时间状语从句：Whenever he comes, he brings a friend. 他每次来都带个朋友。

They all continued their regard for me as long as they lived. 他们毕生都在关心着我.条件状语从句：As long as I am alive, I will go on studying. 只要我活着，我就要学习。

原因状语从句：Since we live near the sea, we enjoy nice weather.由于我们住在海边，能享受到好的天气。

地点状语从句：Put it where we can all see it.把它放在我们都能看到的位置。

目的状语从句：Finish this so that you can start another.把这个做完，（为了）你可以开始另一个。

结果状语从句：He was so angry that he couldn't say a word. 他气得说不出话了。

(完整)初中状语从句讲解及习题附答案

〔一〕状语从句概述定义状语从句用作状语，是起副词作用的句子。

位置状语从句可以放在主句之前，也可以放在主句之后，时间、条件、原因和让步状语从句放在句首时需要用逗号和主句隔开。

分类根据其作用可以分为时间、地点、原因、条件、目的、让步、方式和比拟等状语从句。

作用它可以修饰谓语、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引从句的可以是延性，也可以是瞬。

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〔或者相〕。

While有可以表示比。

例如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 也可以一前一后。

after意“在⋯之后〞。

表示主句作生在从句作之后。

主句与从句的作关系与before 引的从句相反。

before意“在⋯之前〞。

引的从句不用否认形式的，并且当 before 引的从句位于主句之后，有成“就，才〞。

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

till意“直到〞。

一般情况下可以和 until 互。

如果主句中的是瞬，必用否认形式；如果主句中的是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’t 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’twatch TV beforeyou finish your homework. Before it ended, the theatre was almost empty.My father had left for Canada just before the letter arrived.She didn’t even know that it was an earthquake till she saw a shaking ( moving from side to side) light.The fireman worked very hard延性，用肯定和否认形式都可以，但表达的意思不同。

状语从句讲解及习题附答案word文档良心出品

状语从句讲解及习题附答案word文档良心出品（一）状语从句概述（二）状语从句详解1.时间状语从句引导词用法示例whe n 意为“当…的时候” When A liar is not believed when 引导从句的谓语动词可以he speaks the truth. 说谎者讲是延续性动词，也可以是真话时也没有人相信。

瞬间动词。

并且when有When he arrives , I 'call you.时表示“就在那时”When you laugh and smile,your body relaxes.while 意为“在??的时候，在…的While I was standing at the 同时” While引导从句的window, I saw several boys谓语动词必须是延续性running along the street.的，发生时间较长，并强调主句和从句的动作同时发生（或者相对应）。

While有时还可以表示对比。

as 意为“一边…一边…” As引导的动作是延续性的,发生时间较短，一般用于主句和从句动作同时发生；as也可以强调一前一后。

after 意为“在??之后”表示主句动作发生在从句动作之后。

主句与从句的动作时间关系与before引导的从句相反。

before 意为“在??之前”引导的从句不用否定形式的谓语,并且当before引导的从句位于主句之后，有时译成While John was watchingTV, his wife was cook ing.The writer was angry as hewas travelling on a train to London because someonehad inv aded his sp ace ”.He smiled as he stood up.With many hungry visitors waiting, don' stay too longat your table after you havefini shed.If an early exit is n ecessary, you can leave after a sceneis over.You can ' watch TV beforeyou finish your homework. Before it ended, the theatre was almost empty.“就才”当主句用将来时,My father had left for Ca nada意为“自从，从??以来”引since I have been studying hardI will call you as soon as Iarrive.2. 地点状语从句引导词用法示例where意为“哪里。

(完整版)比较、让步、地点状语从句讲解和练习(答案)

比较状语从句通常由as…as, 比较级+ than…等连词引导。

句型：1、A+ be +as + 原级+ B2、A+ be +比较级+ than + B例如：This classroom is as big as that one. This classroom is not as big as that one.This classroom is bigger than that one. This classroom is not bigger than that one. 小试牛刀：There are ___ many league members in class 2 ___ in Class 4.Suzhou is not (beautiful)____ Hangzhou.Iron is （useful）any other metal.●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.Although I am tired, I must go on working.(2)注意体会汉语和英语某些地方的不同，在英语中的although和but不能同时使用，但可以与yet连用。

=In spite of being tired, I couldn’t fall asleep.小试牛刀：1. Although it was raining, still worked in the fields.A. but theyB. and theyC. theyD. and yet they2. ___ there were only five soldiers left at the front, ___ they went on fighting.A. Because; soB. If; andC. Though; butD. Though; /3. ___ she is very old, ___ she can still work eight hours a day.A. Because; soB. Though; butC. As; yetD. Though; yet4. being poor, he often gives some money to the poor.A. BecauseB. ThoughC. AsD. In spite of●地点状语从句（1）地点状语从句常常由where来引导。

状语从句讲解及练习(附答案解析)

状语从句主要用来修饰主句或主句的谓语。

一般可分为九大类,分别表示时间、地点、原因、目的、结果、条件、让步、比较和方式。

尽管种类较多,但由于状语从句与汉语结构和用法相似,所以理解和掌握它并不难。

状语从句的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词即考点。

现分别列举如下:1、时间状语从句常用引导词:when, as, while, as soon as, while, before, after, since , till, until特殊引导词:the minute, the moment, the second, every time, the day,the instant, 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特殊引导词: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, for特殊引导词:seeing that, now that, in that, considering that, given that, considering that, as much as, so much asMy friends dislike me because I'm handsome and 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特殊引导词: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,特殊引导词: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,特殊引导词: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特殊引导词: as(用在让步状语从句中必须要倒装),while ( 一般用在句首),no matter …, in 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。

状语从句讲解和练习（附答案）

状语从句讲解和练习（附答案）一、状语从句分类及常用连词：类别连词时间状语从句when, whenever, while, as, before, after, since, till, once, as soon as,etc.地点状语从句where,wherever原因状语从句because, since, as, for, now that, etc.目的状语从句in order that, so that, that, etc.结果状语从句so…that, so that, such…that, that, etc.条件状语从句if, unless, as(so)long as, etc.让步状语从句though, although, even if, even though, however, whatever, as,etc.比较状语从句as…as, so…as, than, etc.方式状语从句as, as if, as though, etc.二、相似连词的用法区别1.when, while, as,while表时间，从句需用延续性动词，切不可用瞬间动词。

when表时间，从句既可以用延续性动词，又可以用瞬间动词。

as表时间，与when相似，但侧重强调主从句动作同点或同段进行。

when, while后可以接分词短语。

2.because, as, since, for语气位置意义because 最强前或后“原因”；表客观因果关系；回答“”as 较强前“由于”；把众人所知的事实当作理由since 较弱前“既然”；就对方陈述的事实作为理由for 最弱后“理由”；对某一事实进行推断的理由注：上面所说的“前”，指从句在主句之前；“后”，指从句在主句之后。

3.so that, so…that, such…thatso that “以便”、“结果”表目的和结果。

注意：在从句中有情态动词表目的。

无情态动词表结果。

3状语从句讲解及专项练习(附答案)

精锐教育学科教师辅导讲义7. “it was+时间点+when从句”it指时间点，时间前无介词，when从句是状语从句；当主句是一般将来时，when从句用一般现在时。

8. before1)…before.表示“没有来得及做某事就……”，主句经常用过去完成时，从句用一般过去时。

2)“it was(not)十一段时间+before从句（一般过去时）”主句是肯定句时，意为“过多长时间才……”；主句是否定句时，意为“没过多久就……”。

3)“it will be(not)十一段时间十before从句（一般现在时）”主句是一般将来时，从句要用一般现在时表示将来。

9. until1)(not)…unti l…一肯定句中主句的谓语动词必须是延续性动词；否定句中主句的谓语动词经常是非延续性动词，也可以是延续性动词。

2)It was not until…that…强调从句时需把not放在从句前面。

3) not until在句首时，主句要部分倒装。

4) until＝till，但是在句首时，只能用until。

10. since1) since从句总是与时态是现在完成时的主句连用，从句用一般过去时。

2)“It is/ has been十一段时间+since从句”意为“从……到现在多久了”。

如果表示现在，主句用一般现在时或现在完成时，从句用一般过去时。

如果表示过去，主句用一般过去时，从句用过去完成时；或者主句用过去完成时，从句用一般过去时。

如果从句的谓语是延续性动词或者是表示状态的动词，所表示的时间是从该动作结束起。

3) some time has passed since.表示“从……到现在多久过去了”。

11. 时间状语从句的时态一致1)当主句是一般将来时，时间状语从句必须用一般现在时表示将来。

2)当主句是一般将来时，若时间状语从句强调动作完成，从句也可以用现在完成时。

专项练习1. A good storyteller must be able to hold his listeners' curiosity _______ he reached the end of the story.A. whenB. unlessC. afterD. until2. He transplanted the little tree to the garden ________ i t was the best time for it.A. whereB. whenC. thatD. until3. He was about to tell me the secret ________ s omeone patted him on the shoulder.A. asB. untilC. whileD. when4. ________ you understand this rule, you'll have no further difficulty.A. WhileB. OnceC. ThoughD. Unless5. Substances will expand or contract _______ heated or cooled, but this is not the case with water.A. when they will beB. if they will beC. as they beingD. when6. It will not be long ________ man can harness the solar energy and make it serve mankind.A. sinceB. beforeC. whenD. after7. It was found that although the girl could perceive things with her fingers, this ability ceased her hands were wet.A. the moment whenB. the momentC. in that momentD. before8. A man escaped from the prison last night. It was a long time _______ the guards discovered what had happened.A. beforeB. untilC. sinceD. when9. We hadn't met for 20 years, but I recognized her ________ I saw her.A. the momentB. the moment whenC. for the momentD. at the moment when10. _______ he entered the university, his English has been much improved.A. BeforeB. AfterC. WhenD. SinceA. was warned; would not takeB. had been warned; would not have takenC. would be warned; had not takenD. had warned; wouldn't have got18.It is 50 years ________ the People's Republic of China was founded.A. afterB. beforeC. whenD. since19.Not until I began to work _______ how much time I had wasted.A. didn't I realizeB. did I realizeC. I didn't realizeD. I realized20. Not until all the fish died in the river ________ how serious the pollution was.A. did the villagers realizeB. the villagers realizedC. the villagers did realizeD. didn't the villagers realizeKeys:1-5 DADBA 6-10 CADAB 11-15 BAADB 16-20 CBDBAPart 2.21. It was ______ it rained heavily that they didn't come.A. asB. becauseC. forD. since22. Why not buy a cheaper one, ______ you don't have enough money?A. sinceB. becauseC. forD. though23. It is ten years ________ I left home.A. whenB. afterC. sinceD. as24. He speaks English he speaks his mother tongue.A. so good asB. as good asC. so well asD. as well as25. Try_______ he might, he couldn't get out of difficulty.A. whenB. whereC. tillD. as26. _______ I saw the computer, I showed great interest in it.A. At firstB. For the first timeC. UntilD. The first time27. I don't think you'll be able to understand this formula(公式) you finish school.A. as ifB. only whenC. evenD. even when28. I often visited Tian An Men Square I was staying in Beijing.A. untilB. duringC. whileD. throughout29. He always thinks I'm wrong, ______ I say.A. no matter whateverB. whateverC. whatD. that30. ______ the rain has stopped, let's continue to work.A. ForB. Now thatC. ThatD. Because31. _______ , I am sure that the boy is honest.A. Whatever people sayB. No matter people sayC. What people sayD. It doesn't matter people say32. I knew Mr. Green ________ I knew Mrs. Green.A. long beforeB. before longC. long agoD. after long33. They waited ______ it was dark before leaving, they didn't want anyone to see them leave.A. since; becauseB. until; asC. unless; forD. so; because34. ______ often you ring, no one will answer.A. HowB. HoweverC. WhomD. Whenever35. I will never give up _______ they do to stop me.A. his works are not widely readB. but his works are not widely readC. however his works are not widely readD. still his works is not widely read56. _______ he came to town, he would visit our school.A. AfterB. WhenC. AsD. While57. I hurried ________ I wouldn't be late for class.A. sinceB. so thatC. as ifD. unless58. _______ he comes, we won't be able to go.A. WithoutB. UnlessC. ExceptD. Even59. It wasn't ________ the city was liberated.A. long untilB. long beforeC. long afterD. long when60. The conductor often tells the passengers not to get off the bus it has stopped.A. exceptB. unlessC. untilD. as61. Did you pay a visit _______ during the holidays?A. any placeB. anywhereC. whereD. wherever62. It was for two weeks_________ m other had been in hospital.A. sinceB. thatC. in whichD. which63. It was ________ I was in college I began to write letters in English.A. since; thatB. that; whenC. when; thatD. where; did64. I shall ring you up _______ you should forget it.A. becauseB. forC. in caseD. in order not that65. ________ it is so fine a day today, we'd better go outing and have a picnic.A. UnlessB. SinceC. WhileD. Although66. As ________ a s I know, there isn't anything left to eat.A. soonB. farC. longD. well67. The doctor in charge told the young man he didn't allow him to operate on his wounded arm, he would lose it.A. thatB. ifC. whetherD. unless68. _______ , we should try our best to protect the environment.A. Whatever people sayB. What people sayC. No matter people sayD. It doesn't matter people say69. You will succeed _______ y ou keep on working at it.A. as far asB. as long asC. as good asD. as hard as70. The machine is so old it can't be used any more some of its parts are changed.A. as; unlessB. that; unlessC. that; ifD. whether; or71. —My watch started up again.—You should have it repaired it's working now.A. sinceB. untilC. howeverD. even though72. I'm going away; _________ s he will go is up to her to decide.A. if or notB. whether or notC. howeverD. even though73. We couldn't feel air ___________ it were moving.A. as long asB. now thatC. if notD. unless74. We can't afford to buy that flat. It's expensive for us.A. too muchB. far moreC. much tooD. very too75. The moon is much closer to us _______ .A. than any other starB. than any starC. as any other starD. like other stars76. _______ to my surprise, he forgot my birthday at all.A. VeryB. MuchC. MostD. Too much77. His memory is so good _______ his brain were an advanced computer.A. as ifB. thatC. even ifD. as78. ______ you have hidden my umbrella?A. It is where thatB. Where it isC. Is it where thatD. Where is it that79. Even if _______ , I won't go to his wedding party.A. being invitedB. invitingC. invitedD. I invited80. ______ little time left, you'd better walk as fast as possible.A. BeingB. There beingC. It havingD. Since there has Keys:51-55 DBCBA 56-60 ABBBC61-65 BBCCB 66-70 BBABB 71-75 DBDCB 76-80 BADCB。

(完整版)比较、让步、地点状语从句讲解和练习(答案)

比较状语从句通常由as…as, 比较级+ than…等连词引导。

句型：1、A+ be +as + 原级+ B2、A+ be +比较级+ than + B例如：This classroom is as big as that one. This classroom is not as big as that one.This classroom is bigger than that one. This classroom is not bigger than that one. 小试牛刀：There are ___ many league members in class 2 ___ in Class 4.Suzhou is not (beautiful)____ Hangzhou.Iron is （useful）any other metal.●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.Although I am tired, I must go on working.(2)注意体会汉语和英语某些地方的不同，在英语中的although和but不能同时使用，但可以与yet连用。

九年级英语比较状语从句练习题50题含答案解析

九年级英语比较状语从句练习题50题含答案解析1.Jim is taller than Tom. Tom is shorter than Lily. Who is the tallest?A.JimB.TomC.Lily答案解析：A选项Jim 比Tom 高；B选项Tom 不是最高的；C选项文中只说Tom 比Lily 矮，但不确定Lily 和Jim 的身高关系，由前两句可知Jim 比Tom 高，Tom 比Lily 矮，所以Jim 最高。

本题考查形容词比较级转化为最高级的理解。

2.Mary studies harder than Lucy. Lucy studies less hard than Lily. Who studies the hardest?A.MaryB.LucyC.Lily答案解析：A选项Mary 比Lucy 努力；B选项Lucy 不是最努力的；C选项Lucy 比Lily 不努力，所以Lily 比Lucy 努力，但不确定Lily 和Mary 的努力程度关系，又因为Mary 比Lucy 努力，所以Mary 最努力。

本题考查比较级的叠加使用来确定最高级。

3.The food in our school canteen is more delicious than that in the restaurant. The food in the hotel is the most delicious. Which place has the least delicious food?A.School canteenB.RestaurantC.Hotel答案解析：A选项学校食堂食物比饭店的美味；B选项饭店的食物没有学校食堂美味；C选项酒店的食物最美味。

所以饭店的食物最不美味。

本题考查比较级和最高级的综合运用。

4.My room is cleaner than yours. Your room is dirtier than his. Whose room is the dirtiest?A.MineB.YoursC.His答案解析：A选项我的房间比你的干净；B选项你的房间比他的脏；C选项不确定我的房间和他的房间干净程度关系，但由前两句可知你的房间最脏。