定语从句where,when,what,which用法
where,which,that,who,whose,what的用法.doc
where，which，that，who，whose，what的用法语法是小升初英语考试必考的内容，因此考生必须掌握好小升初英语语法知识点，为了帮助大家复习英语语法知识点，下面为大家带来小升初英语语法知识：where，which，that，who，whose，what的用法，希望大家认真记忆。
用来说明主句中某一名词或代词(有时也可说明整个主句或主句中一部分)而起定语作用的句子叫作定语从句。
一.词引导的定语从句1. 关系代词用来指代先行词是人或物的名词或代词句子成分用于限制从句或非限制性从句只用于限制性从句代替人代替物代替人或物主语Who which that主语Whom which that宾语Whose(=of whom) whose(=of which)例1：This is the detective who came from London.例2：The book which I am reading is written by Tomas Hardy.例3：The desk whose leg is broken is very old.例4：This is the room that Shakespeare was born in.2.关系代词的用法(1) 如果先行词是all, much, anything, something, nothing, everything, little, none等不定代词，关系代词一般只用that，不用which。
例如：All the people that are present burst into tears.(2) 如果先等词被形容词最高级以及first, last, any, only, few, mush, no, some, very等词修饰，关系代词常用that,不用which, who，或whom。
例如：(3) 非限制性定语从句中，不能用关系代词that,作宾语用的关系代词也不能省略。
定语从句where,when,what,which用法
(4) 当先行词被序数词或形容词最高级所修饰时。
It is the first foreign book that I have ever seen.
This is the most beautiful flower that I have seen.
（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.
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：
Charles Smith, who was my former teacher, retired last year.
查理史密斯去年退休了，他曾经是我的老师。
My house, which I bought last year, has got a lovely garden.
when引导的定语从句的用法
when/where/why引导的定语从句的用法when， where， why属于关系副词，都在其引导的定语从句中充当状语，其具体用法如下：1. 关系副词 when引导定语从句（包括限定性定语从句和非限定性定语从句）修饰表示时间的先行词，在定语从句中充当时间状语。
例如： I still remember the day when I first met Jennifer.我仍然记得第一次见到詹妮弗的那一天。
// Next month, when you’ll spend your summer holidays in your hometown, is approaching. 下个月即将来临，届时你们将在家乡度暑假。
2. 关系副词where引导定语从句（包括限定性定语从句和非限定性定语从句）修饰表示地点的先行词，在定语从句中充当地点状语。
例如： This is the office where he worked. 这就是他工作过的办公室。
// She is going to live in Macao, where she has some close friends. 她要到澳门去定居，在那里她有几个密友。
3. 关系副词why引导限定性定语从句修饰先行词reason，在定语从句中充当原因状语。
例如： I don’t know the reason why he came so late. 我不知道他来得那么晚的原因。
// That is the reason why I don’t want to go. 那就是我不想去的理由。
// He didn’t tell me the reason why he was so upset.他没有告诉我他为什么那样心烦意乱。
注意：关系代词与关系副词之间并非毫无关联，两者之间存在密切的联系。
在备考中尤其要注意以下几点：1. 很多情况下关系副词用“介词＋which/whom”来代替，其中的介词由先行词或定语从句中谓语动词的形式来决定，例如：The day when I met the famous pop star was the greatest day of my life.= The day on which I met the famous pop star was the greatest day of my life.见到这位著名歌星的那天是我一生中最重要的日子。
定语从句 where,when,what,which用法
二、关系代词that, which的用法
A.以下情况多用that.
(1)如果先行词是all, much, anything, something, nothing, everything, little, none等不定代词，关系代词一般只用that，不用which。例如：
关系词的选择依据在从句中所做的成分，先行词在从句中做主、定、宾语时，选择关系代词(who, whom, that, which, whose)；先行词在从句中做状语时，应选择关系副词( where地点状语，when时间状语，why原因状语)。
五、限制性和非限制性定语从句
1)定语从句有限制性和非限制性两种。限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确；非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开，例如：
His father died the year (that / when / in 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。
主题：
定语从句知识讲解定语从句何时用that,何时用which,何时用where,when,what…
内容：
定语从句何时用that,何时用which,何时用where,when,what…
定语从句与名词性从句的区别与联系
定语从句与名词性从句的区别与联系定语从句和名词性从句是英语语法中两个常见的从句类型。
它们在句法结构、用途和语义上存在一定的区别与联系。
本文将详细探讨定语从句与名词性从句的区别与联系，并给出一些例句来加以说明。
一、定语从句定语从句是用来修饰名词或代词的从句。
它一般用来对前面的名词或代词进行限制或说明。
定语从句通常由关系代词（如that, which, who, whom等）或关系副词（如when, where, why等）引导，并且与先行词在性、数和格上要保持一致。
定语从句的作用是给予名词或代词更多的信息，帮助读者或听者更好地理解所描述的事物。
它可以出现在句首、句中或句末，具体位置取决于句子的结构和表达的需要。
下面是一些例句，说明定语从句的用法：1. The book that I bought yesterday is very interesting.我昨天买的那本书很有趣。
2. The girl who is standing over there is my sister.站在那边的那个女孩是我的妹妹。
3. This is the house where I was born.这是我出生的那个房子。
二、名词性从句名词性从句是充当名词的从句，可以在句子中担任主语、宾语、表语或介词宾语的功能。
名词性从句用来引导一个完整的句子，其结构相对独立，不依赖于其他成分。
名词性从句的引导词包括：that, whether, if, who, whom, whose, which, what, when, where, why等。
不同的引导词代表不同的语义关系和句法功能。
下面是一些例句，说明名词性从句的用法：1. What she said is true.她所说的是真实的。
2. I don't know whether/if he will come to the party.我不知道他是否会来参加派对。
定语从句中关系词的使用
定语从句中关系词的使用▼关系词：关系代词：who, whom, that, which, whose关系副词：where, when, why▼关系代词的使用：一、who/whom的用法二者都可指人，who在定语从句中作主语、宾语，whom在定语从句中作宾语→In this accident,the number of people who died reached as many as 25.在这次事故中死亡人数多达25人。
→I have many friends to whom I am going to send postcards.我要寄给很多朋友贺卡。
注意：①在限制性定语从句中作宾语的关系代词whom也可用who代替，非限制性定语从句中，whom不可用who代替；②但介词提前作宾语时不可以用who，只能用“介词+whom”。
例：→The person to whom you just talked is Mr Li.二、whose的用法Whose一般指人，有时也指物，在定语从句中作定语→You’re the only one whose advice he might listen to.只有你的建议他可能会听。
（whose在定语从句中作advice的定语）→I’d like a room whose window looks out over the sea.我想要一个窗户朝向大海的房间。
（whose在从句中作window的定语）三、which的用法Which一般指物，在定语从句中作主语、宾语，偶尔也作定语。
Which在指人时往往指婴儿或指人的品质→The river which runs through the center of the city was polluted seriously.穿过市中心的那条河遭到了严重的污染。
（which在从句中作主语）→They stayed with me for three weeks during which time they drunk all the wine I had.他们和我一起待了三周，这期间他们喝光了我所有的酒。
what、where等用法
where，which，that，who，whose，what的用法用来说明主句中某一名词或代词(有时也可说明整个主句或主句中一部分)而起定语作用的句子叫作定语从句。
一.词引导的定语从句 1. 关系代词用来指代先行词是人或物的名词或代词 句子成分 用于限制从句或非限制性从句 只用于限制性从句 代替人 代替物 代替人或物 主语 Who which that 主语 Whom which that 宾语 Whose(=of whom) whose(=of which) 例1：This is the detective who came from London. 例2：The book which I am reading is written by Tomas Hardy. 例3：The desk whose leg is broken is very old. 例4：This is the room that Shakespeare was born in. 2.关系代词的用法 (1) 如果先行词是all, much, anything, something, nothing, everything, little, none等不定代词，关系代词一般只用that，不用which。
例如： All the people that are present burst into tears. (2) 如果先等词被形容词最高级以及first, last, any, only, few, mush, no, some, very等词修饰，关系代词常用that,不用which, who，或whom。
例如： (3) 非限制性定语从句中，不能用关系代词that,作宾语用的关系代词也不能省略。
例如： There are about seven million people taking part in the election, most of whom、are well educated. (4) which还有一种特殊用法，它可以引导从句修饰前面的整个主句，代替主句所表示的整体概念或部分概念。
英语定语从句的用法
英语定语从句的用法在英语中有很多种句式，今天让大家一起了解英语中定语从句的用法、接下来小编在这里给大家带来英语定语从句的用法，我们一起来看看吧!英语定语从句的用法定语从句由关系代词who、whom、whose、which、what、as 和关系副词where、when、why等引导，但须记住：1.what不能引导定语从句.2.关系词的分析须考虑它在定语从句中的成分。
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。
where与when在定语从句的用法
where与when在定语从句的用法where与when在定语从句的用法where与when在定语从句是如何使用的？们知道哪些用法呢？在定语从句中where when 的用法：(1)when 可以代替in/on which 引导时间定语从句.例如 That was the year when he was born.那是他出生的那一年.Sunday is a day when people don't have to go to work.星期天是人们不用上班的一天.（2）where可以代替in/on which 引导地点定语从句.例如：Let's meet at the gate where you can see the panda.我们在能看到大熊猫的那个大门见面吧.She is teaching at the university where her mother once studied.她在她母亲曾经过的大学执教.This is the birdge where you took photos.这是你照相的那座桥.关系副词Where在定语从句中的用法先行词表示地点,不一定都用Where引导定语从句一般来说,学习者的脑海中会形成这样一个概念:在定语从句中,如果先行词是表示地点的名词(如place等),就用关系副词where引导定语从句。
这种理解有一定的道理,比如下面这个句子:1. If there is anyone out there who still doubts that America is a place where all things are possible, who still wonders if the dream of our founders is alive in our time, who still questions the power of our democracy, tonight is your answer.如果还有人对美国是否是一个一切皆有可能的国家心存怀疑,还有人怀疑美国奠基者的梦想在我们所处的时代是否依然鲜活,还有人质疑我们的民主制度的力量,那么今晚,这些问题都有了答案。
英语who-when-what-where-why的用法
英语w h o-w h e n-w h a t-w h e r e-w h y的用法-CAL-FENGHAI.-(YICAI)-Company One1who谁when什么时候what什么where什么地方why为什么which那一个hawmuch多少钱hawmany东西多少What：它主要问的是什么。
例句：What are you doing （你在干什么）What's this（这是什么）What's your job（你的工作是什么）When：它主要问的是什么时候。
例句：When shall we go there（我们什么时候去那里） When did this thing happen（这件事什么时候发生的）Where：它主要问的是在哪里。
Where are you（你在哪里） Where can we live（我们住在哪里） Where shall we go（我们什么时候走）How：它主要问的是怎样。
How can we go there（我们怎样才能去那里） How can I do this thing（我怎样去做那件事情）英语 what 用法一、用作疑问代词，用来构成特殊疑问句：1. 与表示人的名词或人称代词连用，用来提问对方或第三者的职业或身份。
例如：What is Comrade Liu 刘同志是做什么的“What are you”“I'm a worker.”“你是做什么的”“我是工人。
”2. 与介词like连用，表示“怎么样”和“象什么”的意思。
例如：What is the weather like today 今天天气怎么样What is the elephant's leg like 大象的腿象什么What does your girlfriend look like 你女朋友长得什么样3. 与about连用，用来表示征求意见或询问消息，表示“对于……怎么样”的意思。
【英语语法】定语从句的关系代词
【英语语法】定语从句的关系代词在复合句中修饰某个名词或代词的从句叫做定语从句。
学习定语从句，引导定语从句的关系代词有who, whom, whose(⼀般指⼈);which(⼀般指物); that(指⼈或物)等。
在句中充当主语、宾语、表语或定语。
如： 1. This is the teacher who / that teaches us English. 这就是教我们英语的⽼师。
(关系代词who / that 作主语。
) 2. Do you understand the sentence which / that I have just explained to you? 你们懂不懂我刚才给你们讲的那个句⼦?(关系代词which / that 作have explained 的宾语。
) 3. China is no longer the country that she used to be. 中国不再是过去那样的国家了。
(关系代词that 作be的表语。
) 4. Do you know the student whose composition is the best in our school? 你认识那个在我们学校作⽂最好的学⽣吗?(关系代词whose作composition的定语。
) 关系代词引导定语从句要注意下列⼏个问题： ⼀、关系代词与先⾏词。
关系代词所修饰的(或指代的)词叫做先⾏词;先⾏词如果是“物”，则关系代词⽤which或that; 先⾏词如果是“⼈”，则关系代词⽤who或that; 也就是说，that既可⽤来修饰“⼈”也可⽤来修饰“物”。
如： 1. This is the newspaper which / that I am looking for. [分析]定语从句的先⾏词为news-paper, 故关系代词可以⽤which或that。
2. Mr. Li is the teacher who/that teaches us English. [分析]定语从句的先⾏词为teacher, 故关系代词可以⽤who或that。
英语定语从句用法详解
语从句一般放在先行词的后面。
The man who / that I saw at the school gate yesterday is my English teacher.
先行词
定语
从句
昨天我在校门口看见的那个人是我的英语老师。
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 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。
4 定语从句简化为不定式作后置定语。 He is always the first person that comes to school.→He is always the first person to come to school.他总是第一个到校。 The report which will be given tomorrow is important to us.→The report to be given tomorrow is important to us. 明天要作的报告对我们很重要。 5 定语从句简化为 what 从句。 I couldn't remember the words that he said.→I couldn't remember what he said. 我记不得他说的话。
① I am waiting for the boy who /that is wearing a red coat. （关系代词作主语） 先行词 关系代词
我正在等穿着红色外套的那个男孩。
② The dictionary that / which my sister gave me last Sunday is very expensive.
英语句子定语从句的用法
英语句子定语从句的用法导语：定语从句的用法是什么?以下是为大家的文章，欢送阅读!希望对大家有所帮助!1、一共有9个：who, whom , whose, that, which,when,where, why, as与名词从句相比：定从不能由what和how引导;which的含义改变;定从内部的介词可以放引导词前。
2、引导词的功能有哪些?(1)引导定语从句(2)代替先行词在定语从句中充当一个成分。
(先行词在从句中不再出现)1、首先，要能判断出该从句是什么从句：(1)放句首没有用逗号分开的，一般是主语从句，也有可能是状语从句，但从句完毕后假设有表达时态变化的动词，那么一定是主语从句。
(2)放及物动词后，假设及物动词不是被动语态，后面一定是宾语从句;假设该及物动词是被动语态，后面一般是主语从句(It+ is + adj/n./done+that/whether/when…)或状语从句。
(3)放be动词后，后面一定是表语从句，但“It is/was + 从句(被强调成分) + that”是强调句(强调句中“非谓语”)。
(4)放名词后，一般是定语从句，但假设该名词有“内涵/内容”(fact/truth/news/information/ problem/suggestion)，那么很可能是同位语从句。
(5)用逗号分开的从句，一般是状语从句或 as/which引导的定语从句，也要注意用放在句中用逗号分开的“插入语”(however, for example,believe it or not等)。
2、其次，判断出是定语从句后可以用“三个优先”法做题：(1)优先选择含whose的选项，能与空格后的名词构成“某人的某物”搭配，一般就是答案;(2)优先选择含介词的选项，然后看该介词与从句中的谓语是否能构成符合逻辑的搭配;(3)用逗号分开的定从，优先考虑as和which,假设该空能翻译为“一件事”而从句意思是通顺的，那么放句首就用as,句末用which(假设该空能翻译为“如同”“像…一样”那么应用as)3、再次,做定语从句题可以用“三问法”来检测是否出错：(1)先行词本身是否为特殊的词?way+ in which/that/省略指物的不定代词：anything, one, some,many, a lot, all, both, that等 + that指人的不定代词或数词：one, those, anyone, two等 + who 既有人又有物： + that“抽象的地点”condition, situation,case, point + where “抽象的时间”one’s stay/visit + when在特定语境中可以作“地点/位置”理解的词：trousers/ sleeves + where(2)先行词前面有无特殊的词?有不定代词修饰：all/every/little/much+ …+ that有最高级/序数词修饰：the best/second … + that有just the/ the very/ the only/ the last等修饰：+ that 有who/which疑问词：+ that(防止重复)有the same/ such/ as修饰：一般+ as(注意：①第一个as是否为一个以as结尾的搭配，如regard…as;②区分such…as(定从)与such …that“如此…以至于”)(3)先行词在定语从句中充当什么成分?注意：从句中spend后的“时间”，以及visit后的“地点”，不是状语，而是宾语，应该用不定代词4、只能用that引导定语从句有哪些情况?先行词前为all, everything, nothing,something, anything, little, much等不定代词时;先行词前有：all, every, no, some, any,little, much, few等不定代词修饰时;先行词被序数词修饰时;先行词被形容词最高级修饰时;先行词前only, just, very, last有等修饰时;先行词是表示人和物混杂的两个名词时;主句是以who, which,开头的疑问句或先行词是疑问代词时;在修饰时间、地点等先行词时，只有用that代替when, where等引导词;【例】I'll never forget the Sunday (that) you first arrived.Do you know anywhere (that) I can get a drink ?先行词为reason, way (意为“方法”)时，常用that 代替why,which, in which，也可省略。
what,which,where,that从句用法
what,which,where,that从句用法1. "What"从句用法：- "What"从句用于询问某事物的性质、特征、定义等。
- 例如：“What is your favorite color?” （你最喜欢的颜色是什么？）- "What"从句还可用于引导主语从句、宾语从句或表语从句。
- 例如：“What he said made me happy.” （他说的话使我开心。
）- "What"从句还可用于作为主语、宾语、表语或同位语等。
- 例如：“I don't know what he wants.” （我不知道他想要什么。
）2. "Which"从句用法：- "Which"从句用于进行选择或从多个选项中确定一个。
- 例如：“Which car do you prefer?” （你更喜欢哪辆车？）- "Which"从句还可用于引导主语从句、宾语从句或表语从句。
- 例如：“Which book he recommended is very popular.” （他推荐的那本书很受欢迎。
）- "Which"从句可以用作主语、宾语、表语或同位语等。
- 例如：“I will choose whichever you like.” （我会选择你喜欢的那个。
）3. "Where"从句用法：- "Where"从句用于询问地点或表示某事物发生的地方。
- 例如：“Where is the nearest supermarket?” （最近的超市在哪里？）- "Where"从句还可用于引导地点状语从句。
- 例如：“I will meet you where we agreed.” （我会在我们约定的地方见你。
定语从句的用法
w hen，where，why属于关系副词，都在其引导的定语从句中充当状语，其具体用法如下：1. 关系副词 when引导定语从句（包括限定性定语从句和非限定性定语从句）修饰表示时间的先行词，在定语从句中充当时间状语。
例如： I still remember the day when I first met Jennifer.我仍然记得第一次见到詹妮弗的那一天。
// Next month，when you’ll spend your summer holidays in your hometown， is approaching. 下个月即将来临，届时你们将在家乡度暑假。
2. 关系副词where引导定语从句（包括限定性定语从句和非限定性定语从句）修饰表示地点的先行词，在定语从句中充当地点状语。
例如： This is the office where he worked. 这就是他工作过的办公室。
// She is going to live in Macao， where she has some close friends. 她要到澳门去定居，在那里她有几个密友。
3. 关系副词why引导限定性定语从句修饰先行词reason，在定语从句中充当原因状语。
例如：I don’t know the reason why he came so late. 我不知道他来得那么晚的原因。
// That is the reason why I don’t want to go. 那就是我不想去的理由。
// He didn’t tell me the reason why he was so upset.他没有告诉我他为什么那样心烦意乱。
注意：关系代词与关系副词之间并非毫无关联，两者之间存在密切的联系。
在备考中尤其要注意以下几点：1. 很多情况下关系副词用“介词＋which/whom”来代替，其中的介词由先行词或定语从句中谓语动词的形式来决定，例如：The day when I met the famous pop star was the greatest day of my life.= The day on which I met the famous pop star was the greatest day of my life.见到这位著名歌星的那天是我一生中最重要的日子。
what where who when which why用法习题
what where who when which why用法习题what "什么" ，用来对不知道的东西提问，如what's this ？还可以用在定语从句中，" what he said is unbelievable“(他所说的不可信）。
在“what a nice day it is !"(今天天气真好！）中what 又可以是感叹词。
which,who,whose用在定语从句中作为疑问代词的成分，分别是“哪一个、谁、谁的”，which 既可以指人又可以指物，who只能指人，whose指物，when是用来提问时间，“什么时候”，where对地点提问，“在哪里”，why对原因提问，how 对方法、方式提问。
一：关于What口语中最常用的问题：1.What time is it?（几点了？）2 . What are you doing?（你在干什么？）3.What did you say?（你说什么？）4. What do you think?（你认为怎样？）5.What do you recommend?（你有何推荐的？）6.What are you looking for?（你在找什么？）7.What is this for?（这是用来做什么的？）8.What would you like to drink?（你想喝什么？）9.What do you call this in English?（这用英语怎么说？）10.What school do you go to?（你在哪所学校就读？）二：关于Where口语中最常用的问题：1. Where are you from?（你从哪里来？）2. Where is your company?（你们公司在哪？3. Where is the restroom?（洗手间在哪？）4. Where are you headed?（你去哪里？）5. Where should I pay?（我该在哪里交钱？）6. Where did you buy it?（你在哪买的？）7. Where did you learn English?（你在哪学的英语？）8. Where do you work?（您在哪里高就？）9. Where would you like to go?（你想去哪里？）10. Where have you been?（你去哪了？）三：关于When 口语中最常用的问题：1. When did you come here?（你何时到的？）2. When does the meeting start?（会议何时开始？）3. When will you finish your work?（你何时做完？）4. When is this due?（什么时候到期？）5. When will the flight arrive?（飞机何时到港?）6. When are you free?（你什么时候有空？）7. When is your birthday?（你的生日是何时？）8. When is he coming back?（他什么时候回来？）9. When does the store open?（商店什么时候开门？）10. When can I see you again?（我何时可以再见到你？）四：关于Who口语中最常用的问题：1.Who did that?（那是谁干的？）2.Who is she?（她是谁？）3.Who’s calling?（您是哪一位？）4.Who do you think you are?（你以为你是谁？）5.Who will take over his job?（谁来接管他的工作？）6.Who does this belong to?（这是谁的？）7.Who told you that?（谁告诉你的？）8.Who asked you?（谁问你了？）9.Who are you looking for?（你在找谁？）10.Who do you think you are talking to?（你以为你在跟谁说话？）五：关于Which 口语中最常用的问题：1.Which is yours?（哪一个是你的？）2.Which hotel are you staying in?（您在哪个宾馆下榻？）3.Which is better?（哪一个更好一点？）4.Which city do you like best?（你最喜欢哪个城市？）5.Which one should I buy?（我该买哪一个？)6.Which train should I take?（我该坐哪趟火车？）7.Which department do you work for?（你在哪个部门工作？）8.Which restaurant do you recommend?（你推荐哪个饭店？）9.Which number should I call?（我该打哪个电话？）10.Which newspaper do you read?（你读哪家报纸？）六：关于Why 口语中最常用的问题：1. Why is that?（那是怎么回事？）2. Why not?（为什么不呢？）3. Why did you say that?（你为什么那么说？）4. Why would you quit your job?（你为何要辞职？）5. Why did you come to China?（你为要到中国来？）6. Why do you study English?（你为何要学英语？）7. Why are you so happy?（你怎么这么高兴？）8. Why are you late?（你为什么晚了？）9. Why do you ask?（你问这个干什么？）10. Why can’t you come?（你为什么来不了？）七：关于how 口语中最常用的问题：1. How are you?（你好吗？）2. How can I help you?（我能帮你什么忙吗？）3. How much is it?（这个多少钱？）4. How long have you been in China?（你来中国多久了？）5. How about having dinner with me?（跟我一起吃晚饭好吗？）6. How do you like it?（你喜欢吗？）7. How are you feeling?（你感觉怎么样？）8. How many children do you have?（你有几个孩子？）9. How was the meeting?（会议开得怎么样？）10. How’s business?（生意怎么样？）。
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定语从句知识讲解定语从句何时用that,何时用which,何时用where,when,what…定语从句何时用that,何时用which,何时用where,when,what…定语从句定语从句定语从句（Attributive Clauses）在句中做定语，修饰一个名词或代词，被修饰的名词,词组或代词即先行词。
定语从句通常出现在先行词之后，由词或关系副词）引出。
关系代词有：who, whom, whose, that, which等。
副词有：when, where, why等。
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持一致。
）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?是你想见的人吗？（who/that在从句中作主语）He is the man whom/ that I saw yesterday.是我昨天见的那个人。
（whom/that在从句中作宾语）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。
）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：rosperity 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 The package (which / that) you are carrying is about to come unwrapped. 你拿的包快散了。
(which / that在句中作宾语关系代词that, which的用法以下情况多用that.(1) 如果先行词是all, much, anything, something, nothing, everything, little, none等不定代词，关系代词一般只用that，不用w the people that are present burst into tears.Is there anything that I can do for you?如果先行词被the only, the very, the same, the last, the best等词修饰，关系代词常用that(指人时，可以用who),例如：is the very book that I want to find.is the best film that we have seen.as the only person in my office that/who was invited.当先行词被all, every, no, some, any, little, much所修饰时；can take any seat that is free.当先行词被序数词或形容词最高级所修饰时。
is the first foreign book that I have ever seen.is the most beautiful flower that I have seen.在there be句型中，常用that.e is a man that lives in that village.先行词有两个，一个指人，一个指物，关系代词应该用that。
例如：The boy and the dog that are in the picture are very lovely.以下情况用which.当关系词前面有介词时，指物常用which.prize for which he worked so hard was a new bike.built a telescope through which he could study the skies.非限制性定语从句指物时，多用which.oo is hollow, which makes it light.wrote an article, which tells us about the computer.如果先行词本身是that时，只用which.is that which he bought yesterday.(4) which还有一种特殊用法，它可以引导从句修饰前面的整个主句，代替主句所表示的整体概念或部分概念。
在这种从句中，which可以作主语，表语，多数情况下意思是与and this 相似，例如：He succeeded in the competition, which made his parents very happy.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。
）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？）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 / in which) he was born.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I don’t like the way (that/ in which) he was treated.This is the reason he was absent.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。
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。
. Is this museum ___ you visited a few days age?A. whereB. thatC. on whichD. the one. Is this the museum ____ the exhibition was held.A. whereB. thatC. on whichD. the one：例1 D，例2 A变为肯定句：This museum is ___ you visited a few days ago.变为肯定句：This is the museum ___ the exhibition was held.在句1中，所缺部分为宾语，而where, that, on which都不能起到宾语的作用，只有the one既做了主句的表语，又可做从句的宾语，可以省应选D。
而句2中, 主、谓、宾俱全，从句部分为句子的状语表地点，既可用副词where，又因in the museum词组，可用介词in + which 引导地点，介词on 用的不对，所以选A。
词的选择依据在从句中所做的成分，先行词在从句中做主、定、宾语时，选择关系代词(who, whom, that, which, whose)；先行词在从句中做状系副词( where 地点状语，when 时间状语，why 原因状语) 。
限制性和非限制性定语从句定语从句有限制性和非限制性两种。
限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确；非限制性定语从句是先行词的附加说明，去主句的意思，它与主句之间通常用逗号分开，例如：is the house which we bought last month.我们上个月买的那幢房子。
（限制性）house, which we bought last month, is very nice.房子很漂亮，是我们上个月买的。
（非限制性）当先行词是专有名词或物主代词和指示代词所修饰时，其后的定语从句通常是非限制性的，例如：les Smith, who was my former teacher, retired last year.?史密斯去年退休了，他曾经是我的老师。
house, which I bought last year, has got a lovely garden.年买的的那幢房子带着个漂亮的花园。