1.高中英语名词性从句和定语从句的语法总结（详细一点）

名词性从句是由if, whether, that 和各种疑问词充当连接词所引导的从句，其功同名词一样.一.主语从句 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾. 1. It 作形式主语和it引导强调句的比较 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化.而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that.被强调部分指人是也可用who/whom.2. 用it 作形式主语的结构 （1） It is +名词+从句 （2） it is +形容词+从句 （3） it is +不及物动词+从句 （4） it +过去分词+从句 3. 主语从句不可位于句首的五种情况 （1） if 引导的主语从句不可居于复合句句首. （2） It is said , (reported) …结构中的主语从句不可提前. （3） It happens…， It occurs… 结构中的主语从句不可提前. （4） It doesn't matter how/whether …结构中的主语从句不可提前. （5） 含主语从句的复合句是疑问句时，主语从句不可提前. 4. What 与that 在引导主语从句时的区别 What 引导主语从句时在句时在从句中充当句子成分，如主语.宾语.表语，而that 则不然. 定语从句也称为关系从句或形容词性从句，由关系代词（who, whom, whose, which, that）或关系副词（as, when, where, why）等引导.关系词除了起引导作用外，还在从句中指代前面的先行词，并在从句中担任一定的成分. 一、限定性定语从句和非限定性定语从句定语从句就其与先行词的关系而言，可分为限定性定语从句和非限定性定语从句.限定性定语从句和先行词之间没有逗号，表示对先行词起修饰限制作用；而非限定性定语从句和先行词之间有逗号分开，是对先行词进行补充说明，相当于并列句.如：He is the man who has strong personality. 他是个个性很强的人.（限定性定语从句）My brother, who works abroad, is coming next week. 我哥哥在国外工作，他下周将回来.（非限定性定语从句）注：1. 非限定性定语从句不能用that来引导，一般用which,as或who（指人）.用which或as引导时，既可以修饰主句的部分内容，也可修饰主句的全部内容.如：He spoke confidently, which impressed me most. (which指代整个主句，在从句中作主语)2. as引导的非限定性定语从句既可以放在主句之前，也可以放在主句之后，但which或who引导的非限定性定语从句不能放在主句之前.如： As we all know, the moon is a satellite of the earth. The large area is covered with thick snow, which affects people's life greatly. 3. 在限定性定语从句中，关系代词作宾语时可以省略；但在非限定性定语从句中，关系代词作宾语时不能省略.如：The film (which) I saw last night is about a young teacher. (which可以省去)She introduced me to her husband, whom I hadn't met before. (whom不能省去)二、通常只用关系代词that，不用 which,who或whom的几种情况1. 当先行词是all, everything, nothing, something, anything, little, much, none, few等时.如：All that you want are here.2. 当先行词被all, no, some, any, every, a few, a little, much, only, very等修饰时.如：There is no person that doesn't make mistakes. 3. 当先行词被序数词或形容词最高级修饰时.如：This is the best film that I have ever seen.4. 当出现两个或两个以上的先行词，并同时兼指人和物时.如： We are talking about the people and countries that we have visited.5. 当主句是以which 或 who 开头的特殊疑问句时.如： Who is the person that is standing over there?6. 当定语从句为there be 句型时，关系代词只能用that，但经常可以省略.如： I know the difference (that) there is between you.7. 当关系代词在从句中作表语时，常用that.如： He does not seem to be the man that he was. 他似乎和过去不一样了.三、as 与其他词连用引导的定语从句as 引导定语从句时，可指人也可指物，通常与the same,such,so等连用，形式为：the same… as,such… as,as …as,so… as.As在定语从句中可作主语、宾语、表语等.如：She knew he felt just the same as she did. 她知道他的感觉与她自己的一样.（as代替事，作宾语）I lend you such books as will interest you. 我借给你使你感兴趣的书.（as代替物，作主语）注：the same… as 和the same… that的用法不同.as引导的定语从句表示其内容与主句所讲的事物“相似”，指同类事物；that引导的定语从句表示其内容与主句所讲的事物是“同一个”，指同一事物.如：This is the same pen as I lost yesterday. 这和我昨天丢的笔一样.（类似的笔）This is the same pen that I lost yesterday. 这支笔就是我昨天丢的那支.（同一支笔）四、“介词+关系代词”引导的定语从句在“介词+which/whom”结构中，介词的选择取决于三种情况：1.定语从句中谓语动词或表语的搭配.如： This is the college in which I am studying. He is the man about whom we are talking.2.先行词与介词的习惯搭配.如： The speed at which the machine operates is shown on the meter. 仪表上显示出这台机器运转的速度.3.当定语从句为最高级时只能用of which； 否则用其。

2.定语从句谁能总结一下知识点

定语从句：人 物1.主语 who/that which/that2.宾语 who/whom/that/省略 which/that/省略3.定语 whose the n.of which/whose4.表语 that that5.状语 不能用which只能用that:1.先行词本身是不定代词all/everything/anything/nothing/much/few/little/none/the one2.先行词被一些词修饰（序数词，最高级）only/few/any/little/no/all/every/very3.先行词中既有物又有人4.who/which/that开头只能用which不能用that1.在非限定从句，先行词是物2.先行词本身是that3.当关系词前面有介词只能用who不能用that1.先行词是one/ones/anyone/those/I/you/he/they2.先行词是人，后面有较长的修饰词3.there be开头4.在非限定从句，先行词是人5.在介词前置时只能用whomone of n.（复数）+定语从句 定语从句中谓语用复数the only one of n.（复数）+定语从句 定语从句中谓语用第三人称单数区分定语从句和强调句：把it is…that去掉，若句子完整是强调句eg:it is the Suez Canal that separates Asia from Africa.It is/was +被强调部分+that+句子剩余部分若先行词是situation之类的抽象名词，用in which/where先行词是the way 做方式状语，用 in which/that/省略the same …as 表示同一类事物the same …that 表示同一件物品eg:this is the same bike as I lost.This is the same bike that I lost,so I take it home.He has four daughters,none of whom is a pianist as he is.He has four daughters.None of them is a pianist as he is.He has four daughters,and none of them is a pianist as he is.。

3.英语定语从句的总结

一 名词性从句： 1. 主要包括主语从句，宾语从句，表语从句和同位语从句. 一般由that 引起，也可由who, what, when, why, which, whom, whether, how 引起. 2. 主语从句很多情况下都可以放到句子后面，而用代词it作形式上的主语. ： 3. 形式宾语 4. 由名词性关系代词whatever, whoever, whichever 等引起的宾语从句 5. whether and if 都能引导从句， 但用法有所不同. 当主语从句直接位于句首时，应用whether，而不用if. Whether 后能直接or not， 但if 不能. Whether he will come or not is not known. 6. 在名词reason后的表语从句必须用that引导， 不可误用 because. The reason why he is often late for class is that he has the bad habit of getting up late in the morning. 二： 定语从句 1. 引导定语从句的关系词有who, whom, whose, that, when, where, why and which. 在非限制定语从句中， 只可用which, who, whose, where , when.， 如果指代前面整个句子， 多用which. 2. 当引导定语从句的先行词前有all, any, no, little, much, very first 等词， 或先行词前为形容词最高级所修饰时，或先行词为all, anything, nothing, something, everything 时，从句的引导词只能用that. 3. as 可做引导词引导定语从句， 多和such, the same 连用. As 引导的定语从句也可修饰整个句子， 既可放在先行词后，也可放在句子开头. 4. 介词+which/whom/whose从句 5. 代/名+介词+which 从句 6. 同位语从句和定语从句 三 状语从句： 修饰主句中的动词， 形容词和副词， 通常有从属连词引导， 按其意义和作用可分为时间， 地点， 条件， 原因， 让步， 目的， 结果， 方式， 比较.等 1. 时间状语从句： 1） 常见连词有 after, as, before, once, since, till, (not)until, when, whenever(no matter when), while, as long as, as soon as etc. 2) no sooner…than, hardly(scarcely, barely)…when： 刚做…就…. 3） 还有 immediately, directly, instantly, the moment, the minute, the instant, the second, every time etc 2. 地点状语从句： 一般用where or wherever 引导 3. 条件状语从句：真实条件从句：if, unless, so long as, provided that, supposing that, on condition that, in the event that, in case that etc 4. 原因状语从句： 从属连词有because, as ,since, for, now, that, in that, seeing that, considering that（鉴于，由于） 5. 让步状语从句： 1): even if, though, even though, while（尽管） no matter what/how/which, however, whatever, whichever, however etc. 2） 由as 引起的让步从句， 语气较强烈，被强调的词须放在句首. 3) whether…or，不管…或… 6. 结果状语从句： so that, so…that, such…that 7. 目的状语从句： so that, in order that, for fear that, lest, in case 8. 方式状语从句： as, just as, as if： 如同…一样 9. 比较状语从句： 1) as…as, not so/as…as 2） 比较级+than, so much/a lot more than 3) no more…than, not more…than, less…than 初中英语定语从句用法及配套练习 初中英语定语从句用法及配套练习 | 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 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。

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，非限制性定语从句主句与从句之间有逗号分开，起补充说明作用，如省去，意思仍完整。 四、关系代词的用法 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。例如： Mary likes music that is quiet and gentle.玛丽喜欢轻柔的音乐。

（that作主语） The coat (that) I put on the desk is blue.我放在桌子上的那件外套是蓝色的。（that作宾语） 2.which用于指物，在句中作主语或宾语，作主语不可省略，作宾语可省略。

例如： The building which stands near the train station is a supermarket.位于火车站附近的那座大楼是一家超市。（作主语） The film (which) we saw last night was wonderful. 我们昨天晚上看的那部电影很好看。

（作宾语） 3.who, whom用于指人，who 用作主语，whom用作宾语。在口语中，有时可用who代替whom， 也可省略。

例如： The girl who often helps me with my English is from England.经常在英语方面帮助我的那个女孩是英国人。（作主语） Who is the teacher (whom) Li Ming is talking to？ 正在与李明谈话的老师是谁？（作宾语） 注意：（1）当定语从句中含有介词，介词放在句末时，who, that, which可省略，但介词在关系代词前时，只能用“介词+which/whom”结构。

例如： This is the house in which we lived last year.这是我们去年居住的房子。 Please tell me from whom you borrowed the English novel.请告诉我你从谁那。

4.【定语从句中which,that,who,whom,whose,where的用法请which,that,

一.指人的关系代词有who、whose、whom、that. 试分析：The old man who/whom /that we visited yesterday is a famous artist. Miss Wang is taking care of the child whose parents have gone to Beijing . The man with whom my father shook hands just now is our headmaster. (=The man who/whom that my father shook hands with just now is our headmaster.)注： A.指人时有时只用who不宜用that. 1.先行词为one、ones或anyone (1)The comrade I want to learn from is the one who studies hard and works hard. (2)Anyone who breaks the law should be punished. 2.先行词为these时 These who are going to Beijing are the best students of our school. 3.在there be 开头的句子中 There is a student who wants to see you. 4.一个句子中带有两个定语从句，其中一个定语从句的关系代词是that，另一个宜用who，以免重复. The student that won the first prize is the monitor who works hards. 5.在非限制性定语从句中 A.I met a friend of mine in the street, who had just come from Japan. B.主句以who开头的句子中，只用that，不用who. 二.指物的关系代词有which、whose(=of which)、that. 试分析： 1. I like the books which / that were written by Lu Xun. 2. The desks (which/that) we made last year were very good. 3. This is the house in which we lived last year. (= This is the house which /that we lived in last year.) 4. I live in the room whose windows face south. (= I live in the room ,the windows of which face south.) 注： A. 介词如果位于作为其宾语的关系代词之前时，只能用whom、which不能用who或that. (1). The girl about whom they were talking is our monitor. (2). The book in which there are many interesting things was written by Li Ming. B. 部分短语动词中的介词不可与动词拆开，在定语从句中其介词不可前置，只能放在其动词之后. Is this the book which she is looking for? The old man who/whom they are waiting for is Professor Li. The child who/whom she is looking after is Wang Ping's son. C.指物时，下列情况下只能用that ，不宜用which. (1)先行词为不定代词，如All、much、anything、everything、nothing、something、none、the one等. We are willing to do anything that is good to the people. I have told them all (that) I know. All that can be done has been done. (2)先行词是序数词或被序数词、修饰时. The first book that I read last night was an English novel. (3)先行词是形容词最高级或被最高级修饰时. This is one of the most interesting films that I have ever seen. This is the best that can be done now. (4)如果有两个或两个以上分别表示人和物的先行词时（先行词既有人又有物），定语从句的关系代词用which和who都不合适，只能用that. We know nothing about the doctors and the hospitals that you are talking about. There are sheep and men that can be seen on the hill. (5)如果先行词被the only、the very、the last、the same、any、few 、little、no、all 、one of、just修饰时. This is the only book that can be lent to you. (6)当主句是以which开头的特殊问句时，关系代词只用that. Which is the dictionary that he used yesterday ? D.只物时，下列情况下只能用which，不宜用that. (1)关系代词放在介词之后 This is the factory in which we once worked. (2)非限制性定语从句中 This is the book, which is written by Lu Xun. (3)that,Those作主语时 Those which are on the desk are English books.。

5.关于英语中定语从句的知识点

关系代词引导的定语从句 关系代词所代替的先行词是人或物的名词或代词，并在句中充当主语、宾语、定语等成分。

关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。 1)who, whom, that 这些词代替的先行词是人的名词或代词，在从句中所起作用如下： Is he the man who/that wants to see you？ 他就是想见你的人吗？（who/that在从句中作主语） He is the man whom/ that I saw yesterday. 他就是我昨天见的那个人。

（whom/that在从句中作宾语） 2) Whose 用来指人或物，（只用作定语， 若指物，它还可以同of which互换）， 例如： They rushed over to help the man whose car had broken down. 那人车坏了，大家都跑过去帮忙。 Please pass me the book whose (of which) cover is green. 请递给我那本绿皮的书。

3)which, that 它们所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等，例如： A prosperity which / that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。（which / that在句中作主语） The package (which / that) you are carrying is about to come unwrapped. 你拿的包快散了。

（which / that在句中作宾语） 关系副词引导的定语从句 关系副词可代替的先行词是时间、地点或理由的名词，在从句中作状语。 1)when, where, why 关系副词when, where, why的含义相当于"介词+ which"结构，因此常常和"介词+ which"结构交替使用，例如： There are occasions when (on which) one must yield. 任何人都有不得不屈服的时候。

Beijing is the place where (in which) I was born. 北京是我的出生地。 Is this the reason why (for which) he refused our offer？ 这就是他拒绝我们帮助他的理由吗？ 2)that代替关系副词 that可以用于表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从句，在口语中that常被省略，例如： His father died the year (that / when / on which) he was born. 他父亲在他出生那年逝世了。

He is unlikely to find the place (that / where / in which) he lived forty years ago. 他不大可能找到他四十年前居住过的地方。 判断关系代词与关系副词 方法一： 用关系代词，还是关系副词完全取决于从句中的谓语动词。

及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如： This is the mountain village where I stayed last year. I'll never forget the days when I worked together with you. 判断改错（注：先显示题，再显示答案，横线；用不同的颜色表示 出。）

（错） This is the mountain village where I visited last year. （错） I will never forget the days when I spent in the countryside. （对） This is the mountain village (which) I visited last year. （对） I'll never forget the days (which) I spent in the countryside. 习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。

方法二： 准确判断先行词在定语从句中的成分（主、谓、宾、定、状），也能正确选择出关系代词/关系副词。

6.急求英语定语从句的总结

一、宾语从句的定义： 宾语从句顾名思义就是在复合句中用作宾语的从句叫做宾语从句。

即作及物动词、介词或某些形容词宾语的部分是由句子来充当。 二、引导宾语从句的引导词分为三类即： 1.表示陈述语气用that ，作从句的原句是陈述句。

注意1： 引导宾语从句的that 常可以省略，但下列情况下不能省略。 （1）and连接两个或两个以上的宾语从句，除第一个从句中的that以外，后面从句中的that不能省略。

如：Everybody could see what happened and that Tom was frightened. (2)that引导的宾语从句作介词宾语时，that不能省略。如： I know nothing about him except that he is from the south. (3)主句谓语动词与that从句之间有插入语，that不可省略。

如：We decided, considering his age, that we would not let him do the job. 注意2： 若有补语，则宾语从句要放到补语之后，在宾补前用形式宾语it. 如：He doesn't want it to be known that he is going away. I consider it necessary that he should do it again. 注意3： 否定转移问题 在think, believe等动词后面的宾语从句，如果从句的谓语动词表示否定意义，一般要将否定词not移到主句的谓语动词上面去，即通过否定主句的谓语动词来否定从句的（意义）谓语动词。此时变反意疑问句时仍将宾语从句视为否定，反意疑问部分用肯定形式。

如：1、I don't think he will come. 2、I don't think he will come, will he? 3、I think he will come, won't he？ 注意4： 从句是祈使句的时候 Please clean the room.”he said to me. → He asked/told me to clean the room. “Don't look out of the window.” he told us. → He told us /asked us not to look out of the window. 2.表示一般疑问语气，含有“是否，能否”的意思用whether 和if，引导一般疑问句，选择疑问句，说明对陈述的事物不明确或不清楚，常用在ask, wonder, want to know, can(could) you tell me 等后 whether 跟if 表示“是否”引导宾语从句，不能省略，但很多情况下可以替换，两者的区别在于： （1）在正式文体中，whether 后可直接跟or not 而if则不能； （2）whether 引导的宾语从句可以移到句首，if则不能； （3）介词和disscuss 等词之后，不定式之前，用whether 不用if; (4)whether 可以引导其他从句，如主语从句、表语从句，if则不能。 另：if 作为“假如”可引导条件状语从句；whether 作为“不管，无论”可引导让步状语从句。

3.表示特殊疑问语气由特殊疑问词导 三、语序：陈述句语序 做宾语从句的句子不管原来是什么语序，在充当宾语从句时都要用陈述语序，即：“引导词+主语+谓语+宾语+其他”。 如：1、Tom said. He is reading a book. → Tom said that he was reading a book. 2、He asks me. Are they playing a game？ → He asks me if/whether they are playing a game. 注意： 当who在从句中做主语时，语序本身就是“主语+谓语”顺序，所以就不再变了. 如：I want to know. Who will come tomorrow？ →I want to know whowill come tomorrow. 宾语从句的特殊语序问题 在“Do you think /believe/suppose----？等”结构中，宾语从句如果是由疑问词引导的，则要用“疑问词+ do you think/believe/suppose +正常语序？” 如：What has happened to him? Do you think？ → What do you think has happened to him？ 四、时态： 主句用现在时或将来时，从句可用任何时态。

主句用过去时，从句用与过去相关的时态。 特殊情况：从句说明的是一般真理、客观事实、运用一般现在时，不受主句的时态限制。

如：The moon moves around the earth.。

7.英语中定语从句部分想了解way和time作先行词时的用法老搞不清楚

The way he did it is different from mine. 他做这件事情的方法跟我的不同. =The way in which he did it is different from mine. =The way that he did it is different from mine.总结：the way引导定语从句可以：1）什么都不加；2）加in which;3）加that 2. I'll never forget the time when we studied together. 我永远忘不了我们在一起读书的时光. 3. I'll never forget the time (which/that) we spent together. 我永远忘不了我们一起度过的时光.总结：第二题中定语从句的谓语是study，即：在那“时光”里学习，所以，表时间. 第三题中定语从句中的谓语是spend，即：一起“度过”的时光，所以，time是度过的宾语.。

8.英语定语从句框图总结（框架

一 名词性从句： 1. 主要包括主语从句，宾语从句，表语从句和同位语从句. 一般由that 引起，也可由who, what, when, why, which, whom, whether, how 引起. 2. 主语从句很多情况下都可以放到句子后面，而用代词it作形式上的主语. ： 3. 形式宾语 4. 由名词性关系代词whatever, whoever, whichever 等引起的宾语从句 5. whether and if 都能引导从句， 但用法有所不同. 当主语从句直接位于句首时，应用whether，而不用if. whether 后能直接or not， 但if 不能. whether he will come or not is not known. 6. 在名词reason后的表语从句必须用that引导， 不可误用 because. the reason why he is often late for class is that he has the bad habit of getting up late in the morning. 二： 定语从句 1. 引导定语从句的关系词有who, whom, whose, that, when, where, why and which. 在非限制定语从句中， 只可用which, who, whose, where , when.， 如果指代前面整个句子， 多用which. 2. 当引导定语从句的先行词前有all, any, no, little, much, very first 等词， 或先行词前为形容词最高级所修饰时，或先行词为all, anything, nothing, something, everything 时，从句的引导词只能用that. 3. as 可做引导词引导定语从句， 多和such, the same 连用. as 引导的定语从句也可修饰整个句子， 既可放在先行词后，也可放在句子开头. 4. 介词+which/whom/whose从句 5. 代/名+介词+which 从句 6. 同位语从句和定语从句 三 状语从句： 修饰主句中的动词， 形容词和副词， 通常有从属连词引导， 按其意义和作用可分为时间， 地点， 条件， 原因， 让步， 目的， 结果， 方式， 比较.等 1. 时间状语从句： 1） 常见连词有 after, as, before, once, since, till, (not)until, when, whenever(no matter when), while, as long as, as soon as etc. 2) no sooner…than, hardly(scarcely, barely)…when： 刚做…就…. 3） 还有 immediately, directly, instantly, the moment, the minute, the instant, the second, every time etc 2. 地点状语从句： 一般用where or wherever 引导 3. 条件状语从句：真实条件从句：if, unless, so long as, provided that, supposing that, on condition that, in the event that, in case that etc 4. 原因状语从句： 从属连词有because, as ,since, for, now, that, in that, seeing that, considering that（鉴于，由于） 5. 让步状语从句： 1): even if, though, even though, while（尽管） no matter what/how/which, however, whatever, whichever, however etc. 2） 由as 引起的让步从句， 语气较强烈，被强调的词须放在句首. 3) whether…or，不管…或… 6. 结果状语从句： so that, so…that, such…that 7. 目的状语从句： so that, in order that, for fear that, lest, in case 8. 方式状语从句： as, just as, as if： 如同…一样 9. 比较状语从句： 1) as…as, not so/as…as 2） 比较级+than, so much/a lot more than 3) no more…than, not more…than, less…than 初中英语定语从句用法及配套练习 初中英语定语从句用法及配套练习 | 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 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。

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，非限制性定语从句主句与从句之间有逗号分开，起补充说明作用，如省去，意思仍完整。 四、关系代词的用法 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。例如： mary likes music that is quiet and gentle.玛丽喜欢轻柔的音乐。

（that作主语） the coat (that) i put on the desk is blue.我放在桌子上的那件外套是蓝色的。（that作宾语） 2.which用于指物，在句中作主语或宾语，作主语不可省略，作宾语可省略。

例如： the building which stands near the train station is a supermarket.位于火车站附近的那座大楼是一家超市。（作主语） the film (which) we saw last night was wonderful. 我们昨天晚上看的那部电影很好看。

（作宾语） 3.who, whom用于指人，who 用作主语，whom用作宾语。在口语中，有时可用who代替whom， 也可省略。

例如： the girl who often helps me with my english is from england.经常在英语方面帮助我的那个女孩是英国人。（作主语） who is the teacher (whom) li ming is talking to？ 正在与李明谈话的老师是谁？（作宾语） 注意：（1）当定语从句中含有介词，介词放在句末时，who, that, which可省略，但介词在关系代词前时，只能用“介词+which/whom”结构。

例如： this is the house in which we lived last year.这是我们去年居住的房子。 please tell me from whom you borrowed the english novel.请告诉我你从谁。

9.【麻烦好心人总结下定语从句time后用when引导的情况这几份资料把我

首先要搞清楚 定语从句的定义：修饰一个名词或代词，相当于形容词；引导词：关系代词：that; which; who; whom; whose; as关系副词：when; where; why做题技巧：定语从句引导词在从句中一定要充当成分；因此只要分析从句的句子成分，看需要，来确定关系代词或关系副词：即缺少主语或宾语则考虑关系代词，不缺主语或宾语则考虑关系副词.简言之：“做成分，看需要”.如：I still remember the time _______ we spent together. (that/which)此句定语从句中spent缺少宾语，故而考虑关系代词.I still remember the time _______ we met. (when)此句定语从句中不缺宾语，故而考虑关系副词.I still remember the first time when I met her. 这句话中when i met her，定语从句用when 引导，与the first 无关，关键是看从句中的成分.each time, last time, next time，是时间状语连接词，直接引导状语从句，如：He said he had helped Jane each time he saw her.他说他每次看见她的时候，都帮助了她.each time 不需 that， 又如：Next time you come to my city, do drop in on me.而 This is the first/second。

time that sb. have/has done sth. 是固定句型，在讨论现在完成时的语法内应该有.如：This is the second time that he has been late for class.。