初中英语从句语法讲解及练习(包括答案)
初中英语定语从句1关系代词引导定语从句讲解-练习及答案
初中英语定语从句1关系代词引导定语从句讲解-练习及答案定语从句1——关系代词引导的定语从句一、考点、热点回顾【词汇辨析】1.every day & everydayevery day“每天”，作时间状语。
everyday是形容词，“每天的，日常的”。
eg: She learns some everyday English everyday. 她每天学一些日常英语。
He goes to bed late every day. 他每天睡觉很晚。
2. between & amongbetween 常用于表示两者之间，或用于表示三者或三者以上的众多事物两两之间among一般指在三者或三者以上众多事物之中。
eg: Tom is between Ann and Mary. 汤姆在安和玛丽之间。
They talked among themselves while they waited. 他们一边等着一边互相谈话【固定搭配】to do / doing在英语中，有些动词或动词短语后既可以接不定式，也可以接动名词做宾语，但意思不同1.forget to do 忘记做某事I’m sorry I forgot to post the letter.forget doing 做过某事忘了 I forgot telling him the news the other day.2. stop to do 停下来做某事He stopped to talk to me when he saw me in the stre et yesterday.stop doing 停止做某事 Please stop talking loudly in the library.3.try to do 尽力做某事 I’ll try to get there before sunset. 我将尽量在日落前赶到那里。
try doing 试着做某事 Why not try knocking at the back door? 为什么不试一试敲后门？4.regret to do 遗憾地将做某事I regret to say that I can’t go with you.regret doing 后悔做过某事I regret missing such a good chance of practising my spoken English.【关系代词引导的定语从句】（一）、定义：在复合句中，修饰某一名词或代词的从句叫做定语从句。
初中英语语法宾语从句专题练习(含答案)
宾语从句专项练习（含答案）宾语从句点拨：宾从三要素，连接（词）语序和时态；（连接词看从句类型，陈述句用that，一般疑问句用whether/if，特殊疑问句就用特殊疑问词）语序只能是陈述；时态口诀要牢记：主现从随意；主过从过去；真理永一现。
一般情况整体记，特殊情况特殊记。
句转时，还需注意人称的转换。
单选题。
1.Has she decided ____ for America?A. when will she leaveB. when does she leaveC. she will leave whenD. when she will leave2. -Is Jerry still in Shanghai or already back at home?-I’m not sure ____. I’ll call to make sure.A．how he will be back B．that he has come backC．why he has come back D．if he has been back3. Can you tell me ____?A. where does Jenny liveB. where Jenny livedC. Jenny lives whereD. where Jenny lives4. -Could you please tell me ____?-Find out which you can’t remember, memorize them and then practice them in reading.A．how many words and expressions I should rememberB．how I could remember so many words and expressionsC．how I can remember so many words and expressions5. The old man asked me ____.A. where was the cinemaB. where is the cinemaC. where the cinema wasD. where was the way to the cinema6. -Excuse me, could you tell me ____?-Sorry, madam. I wasn’t there at that time.A．how did the accident happen B．how the accident happened C．how does the accident happen D．how the accident happens7. I think ____ you will like her.A. thatB. ifC. whyD. how8. -I’d like to visit Jim tomorrow. Do you know ____?-Sorry, I don’t know his address, either.A. why he lives there B．who he lives withC．where he lives D．how he lives9. I didn’t know ____ he will come or not.A. thatB. whetherC. weatherD. how10. I wonder ____.A. how much cost those bootsB. how much do those boots costC. how much those boots costD. how much are those boots cost11. "I want to know ____." said the boy.A．what's inside the box B．where is the boxC．that there's some candy D．how big is the box12. Cathy asked me ____.A. who the boy wasB. who was the boyC. who is the boyD. who the boy is13. -Could you tell me ____?-Sure. Walk straight along this street and you'll find it.A．how can I get to the library B．where is the library C．which is the way to the library D．how far the library is14. Ask him ____.A. whose cup this isB. whose cup is thisC. this is whose cupD. whose is this cup15. -Can I join you?-Sure, we are discussing ____.A．why we like the movie B．who should we go with C．how can we get there D．when shall we go for a picnic16. We don’t know____.A. what time the film startsB. what time starts the filmC. the time to start the filmD. the film what time starts17. -Could you tell me ____?-By searching the Internet.A．how you got the information B．why you got the information C．how did you get the information D．why did you get the information18. The doctor asked me how long ____.A. was I illB. have I been illC. I have been illD. I had been ill19. -We don't know ____ during the summer holidays. Any suggestions?-What about doing some part-time jobs?A．what should we do B．where should we goC．what we should do D．where we should go20. The weather forecast doesn’t say ____.A. if it rains tomorrowB. if does it rain tomorrowC. if it will rain tomorrowD. if will it rain tomorrow21. -Could you please tell me ____?-The day after tomorrow.A．when did he leave for Shanghai B．when he left for Shanghai C．when will he leave for Shanghai D．when he will leave for Shanghai22. Do you know ____?A. whose schoolbag is thisB. whose schoolbag this isC. whom does the schoolbag belong toD. whom the schoolbag belong to23. Could you tell me where ____?A. the book wasB. was the bookC. the book isD. is the book24. -Excuse me. Could you tell me ____?- It will be on at 9:30 a.m.A．when “Star Wars” would be on B．where will “Star Wars” be on C．when “Star Wars” will be on D．where “Star Wars” will be on25. The boys want to know ____?A. where is the supermarketB. how old are youC. when the train will leaveD. why is the boy crying26. - I am a new reader. Could you tell me ____?-Certainly. Four weeks, and you can renew them.A．how long can I keep the books? B．how long I can keep the books C．when should I return the books D．when I should return the books27. Jemmye wanted to know ____.A. what had Father Christmas put in his stockingB. when Father Christmas had put in his stockingC. what Father Christmas had put in his stockingD. where Father Christmas had put in his stocking28. -Excuse me, could you tell me ____?-In front of our school.A．what time should we arrive at the park B．where should we meet C．where I can find you tomorrow morning D．what we need to take with us 29. No one knows ____ the professor will come to our school tomorrow to give us a talk or not.A. whenB. whetherC. whereD. if30. I wonder ____ Harry had a good time having a picnic last week.A．that B．ifC．what D．which31. May didn’t know ____.A. where is Jenny’s fatherB. when was the first watch madeC. who the old man isD. what was wrong with her watch32. -It's so careless to make a mistake again.-Sorry. I couldn't remember ____.A．when I learnt the word B．if I have learnt the word C．where should I put the silent "t"D．in which class did you teach the word33. No one told us ____, so we need your help.A. how should we doB. what we should doC. how we should doD. what should we do34. I like the movie ____ has a satisfactory ending and makes me ____. A．which; to laugh B．that; to laughC．whose; laughing D．which; laugh35. We don’t know ____ with the rubbish and it pollutes out land and sea.A. how do itB. how to doC. what do itD. what to do36. -I want to know ____ on WeChat every day.-About two hours.A．how long do you spend B．how long you spendC．how soon do you spend D．how soon you spend37. She asked me ____.A. whether I find out the sender of the moneyB. whether did I find out the sender of the moneyC. whether the sender of the money found outD. whether I found out the sender of the money38. Mary really doesn’t know ____.A．whether has her father bought her B．what has her father bought her C．how her father has bought her D．what her father has bought her 39. -Could you tell us ____?-Sometimes, if I have time.A．how long you play computer games B．how often you go to the park C．how soon will you see a film D．how much time you spend on homework40. I don't know____ she will come this weekend. ____ she comes, I'll let you know．A. if; WhetherB. whether; WhetherC. if; ThatD. if; If41. I never doubt ____ this museum is worth ____.A. whether, visitingB. that, a visitC. that, travellingD. whether, travel42. I don't know____ next Friday.A. when does she comeB. how will she comeC. if she comesD. whether she'll come43. Jenny asked her father ____.A. where it happensB. where did it happenC. how it happenedD. how did it happen44. -I hope to make decisions by myself.-OK. But remember ____ you do, you should think about the results.A. wheneverB. howeverC. whateverD. wherever45. Could you tell me ____the nearest cinema is?A. whatB. howC. whetherD. where46. -The novel The Old Man and the Sea is very nice.-So it is. Could you tell me ____?A．how long I can borrow it B．if I can keep it for another week C．when should I return it D．that I can borrow it47. Could you tell me ____ the radio without any help?A. how did he mendB. what did he mendC. how he mendedD. what he mended48. -Daddy, can we go to the shopping center tomorrow?-Sure. But first we should find out ____．A．what can we do B．if it will be openC．how can we go there D．where we can go49. -What did your father say to you just now?-He asked me ____.A．that I would like to see a movie B．where I will spend my holiday C．if I enjoyed myself at the party D．when did I attend the graduation party50. She told me the sun ____ in the east.A. riseB. roseC. risesD. had risen51. Mr Jackson hasn't decided ____ this weekend.A．where he will have a picnic B．where will he have a picnic C．where he had a picnic D．where did he have a picnic52. I can't understand ____.A. what does Christmas meanB. what Christmas does meanC. what mean Christmas doesD. what Christmas means53. I can’t understand ____ the boy alone.A. why she leftB. why did she leaveC. why she had leftD. why had she left1-5 DDDCC 6-10 BACBC 11-15 AACAA 16-20 AADCC21-25 DBCCC 26-30 BCCBB 31-35 CABDD 36-40 BDDBD41-45 CDCCD 46-50 BCBCC 51-53 ADA句型转换。
初中英语定语从句专项讲解与练习
初中英语定语从句专项讲解与练习初中英语定语从句系统讲解及配套练（含答案）一．定语从句的概念在复合句中，修饰某一名词或代词的从句叫定语从句。
被修饰的名词或代词叫先行词，定语从句一般放在先行词的后面.二、定语从句的关系词关系词常有3个作用：1，引导定语从句。
2，代替先行词。
3，在定语从句中担当一个成分。
引导定语从句的关系词有关系代词和关系副词，常见的关系代词包括that，which，who（宾格whom，所有格whose）等;关系副词包括where，when，why等。
关系代词和关系副词放在先行词及定语从句之间起连接作用，同时又作定语从句的重要成分。
三、定语从句的分类根据定语从句与先行词的关系，定语从句可分为限制性定语从句及非限制性定语从句。
1.限制性定语从句紧跟先行词，主句与从句不用逗号分开，从句不可省去，限定性定语从句是先行词在乎义上不成短少的定语，假如去掉的话，主句的意义就不完全，意义就表述不明。
这类句型普通定语从句紧接先行词，如：I was the only person in myoffice who was invited.2.非限定性定语从句主句与从句之间有逗号分隔，起弥补申明感化，如省去，意义仍完全。
非限制性定语从句。
它与主句的关系不十分密切，只是对其附加说明，也就是讲即便去掉定语从句，句意也不受影响，仍然清晰明了。
这样的定语从句要在它和主句之间加一逗号分开。
且关系代词不引导这种非限制性定语从句，如：Michael Jaskon，who is the greatest singer in the world，passed away in 2010.如：Mary lived in the city of Hongkong，where used to be a small poor countryside.4、干系代词的用法1.that既可以用于指人，也可以用于指物。
在从句中作主语或宾语，作主语时不可省略，作宾语可省略。
【英语】初中英语名词性从句解题技巧讲解及练习题(含答案)含解析
【英语】初中英语名词性从句解题技巧讲解及练习题(含答案)含解析一、初中英语名词性从句1．_______ caused the accident has not been found out yet.A. WhatB. WhichC. The thingD. That【答案】 A【解析】【分析】句意：造成事故的原因还没有查明。
此处为主语从句，从句中缺少主语，应该用what引导，故答案为A。
【点评】考查主语从句。
以及what的含义。
2． is clear to the members of the committee is that the President will not give in to their demands.A. WhoB. ItC. AsD. What【答案】 D【解析】【分析】句意：委员会成员清楚的是，总统不会向他们的要求让步。
that the President will not give in to their demands.这个句子作表语； is clear to the members of the committee这是主语从句，这里缺少主语从句的连接词，并且连接词在句中作主语，it是代词，不是了；连接词，故排除B；as作主语时，是在定语从句中，故排除C；who指人，根据表语指的事情，不是人，故排除A；what在主语从句中可以作主语或宾语，指事，符合句意，故选D。
【点评】考查名词性从句，本题涉及what引导的主语从句。
3．Some people believe _______ has happened before or is happening now will repeat itself in the future.A. whateverB. wheneverC. whereverD. no matter what【答案】 A【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。
(完整)初中英语定语从句讲解及练习
(完整)初中英语定语从句讲解及练习初中英语定语从句讲解及练一.定语从句及相关术语1.定语从句：修饰一个名词或代词的从句称为定语从句，一般紧跟在它所修饰的先行词后面。
2.关系词：引导定语从句的关联词成为关系词关系词有关系代词和关系副词。
关系代词有that, which, who, whom, whose, as等；关系副词有where, when, why等。
关系词常有3个作用：1，引导定语从句。
2，代替先行词。
3，在定语从句中担当一个成分。
二.关系代词引导的定语从句1.who指人，在从句中做主语(1) XXX class one.(2) yesterday i helped an old man who lost his way.2. whom指人，在定语从句中充当宾语，常可省略。
(1) mr. liu is the person (whom) you talked about on the bus.(2) mr. ling is just the boy whom i want to see.留意：干系代词whom在白话和非正式语体中经常利用who替代，可省略。
(3) the man who/whom you met just now is my friend.3. which指物，在定语从句中做主语或者宾语，做宾语时可省略(1) XXX is a game which is XXX.(2) this is the pen (which) XXX.4. that指人时，相当于who或者whom；指物时，相当于which。
在宾语从句中做主语或者宾语，做宾语时可省略。
(5) the number of the people that/who come to visit the city each year rises one million.(6) where is the man that/whom i saw this morning?5. whose平日指人，也可指物，在定语从句中做定语(1) XXX.(2) i once XXX.whose指物时，经常利用以下布局来替代(3) the classroom XXX.(4) the classroom the door of which is broken will soon be repaired.(5) do you like the book whose cover is yellow?(6) do you like the book the color of which is yellow?三.介词+干系代词指导的定语从句干系代词在定语从句中做介词宾语时，从句常由介词+干系代词指导(1) the school (that/which) he once XXX.(2) the school in which he once XXX.(3) tomorrow i will bring here a magazine (that/which) you asked for.(4) tomorrow i will bring here a magazine for which you asked.(5) we'll go to hear the XXX) we have often talked about.(6) we'll go to hear the XXX.留意：1.含有介词的动词短语普通不拆开利用，如：look for, look after, take care of等(1) this is the watch which/that i am looking for. (t)(2) this is the watch for which i am looking. (f)2.若介词放在关系代词前，关系代词指人时用whom，不可用who或者that；指物时用which，不能用that；关系代词是所有格时用whose(1) the man with whom you talked is my friend. (t)(2) the man who/that you talked with is my friend. (f)(3) the plane in which we XXX)(4) the XXX)3.“介词+关系代词”前可有some, any, none, both, all, neither, most, each, few等代词或者数词(1) he loved his parents deeply, both of whom are very kind to him.(2) in the basket there are quite many apples, some ofwhich have gone bad.(3) there are forty students in our class in all, most of whom are from big cities.in the dark street, there wasn't a single person ________ she could turn for help.a. thatb. whoc. from whomd. to whom简析:本题定语从句中的turn与介词to构成固定短语"turn to sb. for help (向某人求助）"。
初中八年级英语常用语法知识——宾语从句习题(含答案)
一、选择题1．Pick up your pen and draw your own invention. Maybe it will be ____ a real product one day! A．turned on B．turned down C．turned into D．turned off C解析：C【解析】【详解】句意：拿起笔来画，你自己的发明。
也许有一天它会成为一个真正的产品。
考查动词词组辨析。
A. turned on打开；B. turned down调低；C. turned into变成；D. turned off关闭；根据句意及选项可知，画未来会变成product，所以是变成。
故选C。
【点睛】turn up 调高 turn out 原来是，结果是。
2．—What do you think of your English teacher?—She is a good and caring one. Though her teaching style that of most other teachers, she always has more creative teaching methods than others do.A．is similar to B．is similar as C．the same as A解析：A【解析】【分析】【详解】句意“-你认为你的英语老师怎么样？-她很好并且有同情心。
尽管他的教学风格与其他大部分的老师的相似，但是她总是比其他老师有更多的创造性的教学方法”。
无be similar as用法，排除B；be similar to与……相似；the same as与……一样。
根据she always has more creative teaching methods than others do可知，虽然她的教学与其他的老师相似，故选A。
3．---___________ is it from here to his home?---Not far. You can arrive on foot ______________.A．How long; ten minutes later B．How far; in ten minutesC．How far; after ten minutes D．How long; in ten minutes B解析：B【解析】【分析】【详解】句意：——从这里到他家有多远?——不远。
初中英语定语从句1关系代词引导定语从句讲解-练习及答案
定语从句1——关系代词引导的定语从句【关系代词引导的定语从句】（一）、定义：在复合句中，修饰某一名词或代词的从句叫做定语从句。
定语从句是指在一个句子中作定语的句子，定语从句要放在所修饰的词后。
如：1) The man who lives next to us is a policeman.2) You must do everything that I do.上面两句中的man和everything是定语从句所修饰的词，叫先行词，定语从句放在先行词的后面。
引导定语从句的词有关系代词that, which, who(宾格whom, 所有格whose)和关系副词where, when、why1、引导定语从句2、代替先行词3、在定语从句中担当一个成分（二）、关系代词引导的定语从句指人，在从句中做主语(1)The boys who are playing football are from Class One.(2)Yesterday I helped an old man who lost his way.2. whom指人，在定语从句中充当宾语，常可省略。
(1) Mr. Liu is the person (whom) you talked about.注意：关系代词whom在口语和非正式语体中常用who代替，可省略。
(2) The man who/whom you met just now is my friend.3. which指物，在定语从句中做主语或者宾语，做宾语时可省略(1) Football is a game which is liked by most boys. ( which 在句子中做主语)(2) This is the pen (which) he bought yesterday. ( which 在句子中做宾语)4. that指人时，相当于who或者whom；指物时，相当于which。
(完整版)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 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。
初一七年级英语语法定语从句用法总结含练习及答案
初一七年级英语语法定语从句用法总结含练习及答案定语从句是一种形容词的关系从句，由关系代词或关系副词引导。
初一英语中的定语从句仅限于限制性定语从句。
一、英语中的定语从句的位置。
英语中的定语从句始终要放在被修饰的词之后。
如：The man（先行词） who / that I saw at the school gate yesterday（定语从句）is my English teacher.昨天我在校门口看见的那个人是我的英语老师。
二、英语从句中的句型结构比较复杂，有先行词、关系代词或关系副词。
被定语从句修饰的词叫先行词，引导定语从句的关联词有关系代词或关系副词。
限制性关系分句和它的先行项的所指意义有着不可分割的联系。
关系代词或关系副词放在先行词和定语从句之间起纽带作用，关系代词或关系副词在定语从句中要充当一个成分。
关系代词在句中可作主语、宾语或定语，关系副词在句中作状语。
如：I am waiting for the boy （先行词） who /that （关系代词）is wearing a red coat. （主语）我正在等穿着红色外套的那个男孩。
The dictionary （先行词） that / which（关系代词）my sister gave me last Sunday is very expensive.（宾语）我姐姐上周星期天给我的那本字典很贵。
The woman is his mother （先行词） whose （关系代词）name is Linda Brown. (定语)那个是他的母亲，名叫琳达·布朗。
That is the house （先行词） where （关系副词）my father used to live.(状语)那是我父亲曾经居住过的房子。
三、初中英语中定语从句关系代词或关系副词的具体用法。
1. who指人（也可用that），在定语从句中作主语，也可作宾语。
初中英语状语从句归纳(附练习及答案)
初中英语状语从句归纳(附练习及答案)状语从句指句子用作状语时，起副词作用的句子。
它可以修饰谓语、非谓语动词、定语、状语或整个句子。
根据其作用可分为时间、地点、原因、条件、目的、结果、让步、方式和比较等从句。
状语从句一般由连词(从属连词)引导，也可以由词组引起。
从句位于句首或句中时通常用逗号与主句隔开，位于句尾时可以不用逗号隔开。
一、时间状语从句要点:时间状语从句，由以下连词引导：when while as after before as soon as since till /until by the time在时间状语从句中，要注意时态一致。
一般情况下主句是将来时的时候，从句要用一般现在时。
1.when当。
的时候mozart started writing music when he was four years old.当)XXX的时分，开始写音乐作品。
2.while当。
时XXX a lot of places while he was traveling.他在旅途中参观了许多地方。
3.as在。
的同时；一边。
一边。
XXX.他一边站起来一边笑着。
4.after在。
之后he left the classroom after he had finished his homework the other day.前几天做完作业之后回的家。
5.before在。
之前XXX.XXX先生来这之前已经在一家银行里工作一年了。
6.XXX。
就。
we began to work as soon as we got there.我们一到那就开始工作。
i will write to you as soon as i get home.我一到家就给你写信。
7.since自。
以来到现在透露表现自曩昔的一个出发点工夫到目前(语言工夫)为止的一段延续工夫。
主句普通用目前完成时，从句用普通曩昔时。
mr green has taught in that school since he came to china three years ago.自XXX先生来中国以来，他就在这所学校教书。
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初中从句 从句按其在复合句中的作用,分为主语从句、表语从句、宾语从句、定语从句和状语从句等。（参见以下各条） 各从句在句子中的位置以及用法：
(1) 表语从句：在句子中作连系动词的表语的从句,它位于主句中的系动词之后。 例如：That is why he did not come to school yesterday. / It is because you are so clever.
(2) 宾语从句：在句子中作及物动词或介词的宾语。 ①基本形式：（主句＋）连词+从句主语+从句谓语+... ② 关于宾语从句连词的选择： 若从句来源于一个陈述句,那么,连词用that,在口语中that可以省略; 若从句来源于一个一般疑问句,连词则用if 或whether; 若从句来源于一个特殊疑问句,则连词就是疑问词(如what,who,where,when等) 例如：They believe that the computer will finally take the place of human beings.(他们相信计算机终将代替人类。) (从句本来就是陈述句)/ I wonder whether I should say something for him to the headmaster. (我不知道是不是该为他在校
长跟前说点什么。) (从句来源于一般问句Shall I say something for him to the headmaster?) / He asked me where he could get such medicine. (他问我在哪儿
能搞到那样的药。) (从句来源于特殊问句Where can he get such medicine? ) ③ 宾语从句的时态问题：如果主句是现在时,从句则用现在某一时态,甚至可以用过去时； 如主句是过去时,从句则相应地使用过去某一时态,遇到客观真理时仍然用现在时。如：I think I will do better in English this term. (我想本学期我的英语会学得好
点。) / The teacher asked the boy if the earth is round. (老师问那个男孩地球是不是圆的。) ④ 下列结构后面的从句一般也作为宾语从句看待： be sorry / afraid / sure / glad +that从句,如：I’m sorry I’m late. (对不起,我迟到了。) / I’m afraid he isn’t in at the moment. (恐怕他此刻不在家。)
(3) 状语从句：在复合句中作状语,其位置可以在主句前或主句后。状语从句可以分为时间、地 点、原因、目的、结果、比较、让步、条件等几种。状语从句由从属连接词引导。 时间状语从句通常由when ,as ,while, after, before, since, as soon as ,since, till (until), while, whenever 等引导。时间状语从句一般放在句首或句尾,特别注意,时
间状语从句不允许使用将来时,而应该用现在时替代。如： When you finish the work, you may go out to play with Sam. (你完成工作就可以出去和Jim一起玩了。) / I won’t leave until Mum comes back. (妈妈回来了我才会走。)
地点状语从句通常由 where, wherever等引导。如：Go back where you came from! (哪里来还滚到哪里去！) / I will never forget to catch the thief who stole my necklace wherever he may be. (我永远也不会忘记去抓住那个偷我项链的贼,无论他会在哪里。)
原因状语从句通常由because, since, as等引导,一般放在句首或句尾。如：He went abroad because his father had found a good university for him. (他出国了,因为他父
亲给他找了一所好大学。) 目的状语从句通常由so that..., so...hat..., in order that... 等引导,往往放在句尾,从句中通常含有can / could / may / might等情态动词。如：He got up earlier so that he could catch the first train. (他起身更早为的是赶上第一班车。)
结果状语从句通常由 so that..., so...that... 等引导,放在句尾。结果状语从句一般表示已经发生的事情,故多为过去时态。如：He lost so many bikes that he decided never to buy a new one. (他丢了那么多辆自行车,他决定再也不买新车了。)
比较状语从句通常由as, than, as (so)...as等引导,一般省略从句的谓语部分,只剩下名词或代词(用主格或宾格均可)。如：Jane is much taller than I/me. (Jane比我高多了。) / I don’t have as many books as you (do). (我书没有你多) 让步状语从句通常由though (although), as, even if( even though), however, whatever等引导。如：Even if you pay the debt(债务) for me, I will not thank you because it has nothing to do with me. (即使你替我还了债我也不会感谢你,因为它与我毫
无关系。) / He wears a T-shirt though it is very cold. (他穿了一件T恤衫,尽管天很冷。) 条件状语从句通常由if, unless, as long as等引导,条件状语从句一般放在句首或句尾,特别注意,时间状语从句不允许使用将来时,而应该用现在时替代。You will certainly fail in the coming final exams unless you work much harder. (即将来到的期末
考试你肯定考不及格,除非你更用功。) / If it doesn’ t rain tomorrow, we shall go hiking. (如果明天不下雨我们就要去徒步旅行。)
[注意] 1、because与so；(al)though与but；if与so不可以同在一个句子中成对出现。 2、时间、条件、原因,让步状语从句放在句首时需要用逗号与主句隔开。
(4) 定语从句：在复合句中作定语用修饰句子中某一名词或代词的从句叫定语从句。 ① 定语从句的位置：放在名词或代词的后面。如：The man who has an umbrella in his hand is my uncle. (手上抓了一把雨伞的人是我的叔叔。)
② 语法术语的改变：被修饰的名词或代词称为先行词；引导定语从句的连接词称为关系词,其中that、which、who称为关系代词,where、when、how称为关系副词。 ③ 关系代词或关系副词的作用： 关系代词who、whom 和whose指人,分别在从句中作主语、宾语和定语。which指物that多指物, 有时也指人,它们在从句中可以作主语或宾语。定语从句中关系代词作从句宾语时可以省略。This is the thief (that/who/whom) we have been looking for these days. (这个就是我们近日一直在找的小偷。) / Please find a room which is big enough for all of us to live in. (请找一间足够大能住下我们全体的房间。)
关系副词when或where引导定语从句时,它们在从句中分别作时间状语和地点状语。如：This is the room where they had a quarrel a week ago. (这是一个星期前他们吵
架的房间。) / I can never forget the day when I first saw you. (我永远不会忘记第一次见到你的日子。) ④ 限制性定语从句和非限制性定语从句。限制性定语从句在句中不能省略,否则主句意思就不完整。非限制性定语从句和主句之间往往用逗号分开,这种从句是一种附加说明,如果从句子中省去,也不致于影响主句的意思。如：She spent the whole evening talking about her latest book, which none of us had heard of. (她一个晚上都
在谈论她最近的书,我们一个人都没有听说过那本书。) [注解] 1、关系代词只能用that的情况：当先行词是指事物的不定代词(all, anything等),或先行词部分含有最高级,或含有序数词时,不能用其他的关系代词,只能用that. 如：All that Lily told me seems untrue. (Lily告诉我的话似乎不真实。) / Can you give me anything that has no sugar inside? (能不能给我点里面没有糖的东西？) / This is the first two-story bus that runs in our city. (这是第一辆运行于我市的双
层公交车。)