who whom that的基本用法
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。
英语三大从句语法讲解
英语三大从句在英语中,主要有三大从句,即名词性从句包括主语从句,宾语从句,表语从句,同位语从句、形容词性从句即定语从句、副词性从句即状语从句,包括时间、条件、结果、目的、原因、让步、地点、方式等;定语从句一、关系代词引导的定语从句关系代词代替前面的先行词,并且在定语从句中充当句子成分,可以作主语、宾语、定语等;常见的关系代词有：who, that, which;它们的主格、宾格和所有格如下表所示：一关系代词who, whom和 whose的用法who代替人,是主格,在定语从句中作主语;An architect is a person who designs buildings. 建筑师是设计房屋的人;whom代替人,是宾格,在定语从句作宾语,在非正式英语常可省略;Do you know the gentleman whom we met in the school library yesterday 昨天我们在学校图书馆里遇到的那位先生你认识吗whose一般代替人,有时亦可代替物,是所有格,在定语从句作定语;The girl student whose father is a senior engineer used to study abroad. 其父是一位高级工程师的那个女学生过去在国外留学;Do you know the name of the hotel whose window we can see here 我们这儿能看到窗户的那个宾馆叫什么名字,你知道吗关系代词whose指代先行词hotel,正式用法应该用of which;whose window=the window of which,意思是：the window of the hotel;二关系代词which的用法which代替物,在定语从句作主语或宾语,作宾语时还可省略;I do not like stories which have unhappy endings.我不喜欢有不幸结局的小说;which可以换成that三关系代词that的用法that既可指人又可指物,在当代英语中大多指物,在定语从句作主语或宾语,作宾语时还可省略;： Is she the girl that sells newspapers她是卖报纸的那个女孩吗that可以换成whoWhere is the ice-cream that was in the fridge放在冰箱的冰激凌哪儿去了that可以换成whichIs this the book that you want to buy这是你要买的那本书吗 that可以换成which,在定语从句作宾语,还可以省略二、关系副词引导的定语从句常用的关系副词只有三个：when, where, why,在定语从句中充当时间、地点和原因状语;一关系副词when的用法关系副词when代替的先行词表示的是时间,when在定语从句作时间状语;In Beijing July and August are the months when it rains very often.北京的七月和八月是常下雨的月份;when先行词是months二关系副词where的用法关系副词where代替的先行词表示的是地点,where在定语从句作地点状语;During the Spring Festival I went back to the town where I was brought up.春节期间,我回到了生我养我的家乡;where的先行词是town三关系副词why的用法关系副词why代替的先行词表示的是原因,why在定语从句作原因状语;The reason why I am phoning you is to ask you whether you have got my email.我打电话给你的原因是想问问你是否收到了我的电子邮件;why先行词是reason, 当代英语里why可以用that替代,这时关系代词that就变成了表示原因的关系副词,还可以将why省略三、特殊关系代词as引导的定语从句一在固定搭配as…as, so…as, such…as, the same…as中,as引导定语从句You may take as many books as you want.你想要拿多少书就拿多少;第一个as是副词,修饰many的；第二个as才是关系代词,代替先行词books,在定语从句中作宾语二独立于主句之外,as引导定语从句As we know/ As is known to us, the earth turns around the sun. 正如我们所知,地球围绕太阳旋转;As we know和 As is known to us均为定语从句,as分别作宾语和主语,替代后面的主句;Taiwan is, as you know, an inseparable part of China.你知道,台湾是中国不可分割的一部分;关系代词as指代整个主句,在定语从句中作宾语;四、关系代词who, which与that的区别一关系代词who与that的区别1. 当关系代词用作主语时,多用主格who;He who loses hope loses all.失去希望的人就失去一切;先行词为代词he, they, any, all, one等时,多用whoI met Alice, who told me that she was learning Chinese.我遇见艾丽斯,她告诉我她在学汉语;在非限制性定语从句中,用who2. 当关系代词用作介词后的宾语时,用宾格whom,不用that;The man to whom our headmaster talked just now is our English teacher.我们校长刚才与他谈话的那个人是我们的英语老师;介词与关系代词紧密相连时,只能用宾格whom,不可用主格who注意：介词与关系代词不是紧密相连时,或者说介词放在句子后面时,这时可以用主格who,也可用that,还可以省略关系代词;因此,上面的这句话还可以有如下四种说法：1 The man whom our headmaster talked to just now is our English teacher.2 The man who our headmaster talked to just now is our English teacher.3 The man that our headmaster talked to just now is our English teacher.4 The man our headmaster talked to just now is our English teacher.3. 当关系代词泛指人时,多用that;He is a man that is never afraid of failure.他是个从不怕失败的人;that用来泛指人4. 当关系代词出现在who开头的疑问句时,应用that;例如：Who is the girl that is talking to Tom in English用英语同汤姆交谈的那个女孩是谁避免重复使用who,以免造成误解或语义含混不清二关系代词which与that的区别1. 当先行词为all, much, little以及不定代词anything, something, everything等时,关系代词多用that;All that glitters is not gold. 闪闪发光物,未必尽黄金;She told me everything that she knew. 她把她所知道的一切都告诉了我;2. 当先行词的前面有形容词最高级、序数词或限定词the only, the very, all, every, any, no 等时,关系代词一般都用that;This is the best novel that I have ever read. 这是我读过的最好的一部小说;He is the only person that has been invited to the ball. 他是惟一应邀参加舞会的人;3. 当关系代词出现在which开头的疑问句时,应用that;Which was the hotel that was recommended to the foreign guest 哪一个是推荐给外宾的宾馆这里使用that很明显是为了避免重复which4. 在非限制性定语从句中,关系代词一般只用which;Beijing, which is the capital of the People’s Republic of China, will host the 2008 Olympic Games. 北京是中华人民共和国的首都,将主办2008年奥运会;5. 介词后的关系代词用which,而不用that;She has collected 600 stamps, 60% of which are German stamps. 她收集了600张邮票,其中60％是德国邮票;五、定语从句的位置如前所述,定语从句一般总是直接置于所修饰的名词或代词之后;有时候,定语从句与先行词之间插入了其他的短语,这样它们被分隔了,这种情况下的定语从句被称作隔离定语从句;There was a girl upstairs who was shouting and crying, obviously mad.楼上有一个女孩,大喊大叫;很明显,她疯了;定语从句who was shouting and crying修饰the girl,被upstairs所隔开A new master will come tomorrow who will teach you German.明天要来一位新老师教你们德语了;定语从句置于句末以示强调名词性从句宾语从句一、引导词1由that 引导的陈述句性的宾语从句,在很多动词如say, think, wish , hope, see, believe, agree, expect, hear , feel等动词后;连词that只起连接作用,在从句中不做句子的成分,也无词汇意义,在口语中常被省略;如：I told him that he was wrong.在think, believe, suppose, expect等动词引起的宾语从句中,有时谓语尽管是否定意义,却不用否定形式,而将think 等动词变为否定形式;见语法：否定转移如：I don’t think you are right. 我认为你做的不对在许多带有复合宾语的句子中,that引导的宾语从句经常移到句子的后面,而用it做形式宾语;We think it wrong that he told a lie to everyone 我认为他向每一个人撒谎是错误的2 由连词if、 whether 引导的表示“是否…”的宾语从句;Whether, if 在从句中不做句子的成分,一般情况下,whether和if 可以替换;I don’t know if/whether he will come tomorrow.在介词后面的宾语从句中不用if引导Everything depends on whether we have enough money.宾语从句中有or not时不用if引导.I don’t know whether the movie star will come or not.和不定式连用作宾语时不用if引导Whether to go there or not hasn’t been decided.3由wh-引导的宾语从句;连接代词who, whom, whose, what, which和连接副词when, where, why, how 等连接的宾语从句,它们在句中即有连接从句的作用,又在句中充当句子的成分;Do you know which film they are talking about which做定语I don’t know where he lives. where 做地点状语二、宾语从句的语序,宾语从句的语序必须是陈述语序,既连接词+主语+谓语+其他成分 I believe that they will come soon.特例：有下列常见的问句,作为从句出现,是“不改变语句顺序”的;1. What's the matter2. What's wrong3. What's up4. What's the problem5. What's your trouble三、宾语从句的时态;宾语从句的时态受主句的限制,即：主句是一般现在时态,从句根据实际情况而定；主句是一般过去时态,从句用相应的过去的时态;如果从句的动作发生在主句之前,则从句要用过去完成时态;1 She says that she is a student.→ She said that she was a student.2She says that she will fly to Japan in a week. → She said that she would fly to Japan in a week.3She says that she has finished her homework alre ady. → She said that she had finished her homework already.1如果宾语从句说的是客观真理、自然现象或事实时,这时宾语从句要用一般现在时态;The teacher said that the earth goes round the sun.2Could you tell me…是用来征询对方的意见,语气委婉,并不表示过去;Could you tell me when we will visit the History Museum注意事项：3由陈述句变成宾语从句时,要注意人称的变化;She said: “I have been to England before.” → She said that she had been to England before. She asked me: “Do you like maths” → She asked me if I liked maths.4宾语从句与简单句的交换;由连接代词和连接副词引导的宾语从句,如果宾语从句的主语和主句的主语是同一个人时,可以用“疑问词+不定式”做宾语的简单句结构;I don’t know what I should do next. → I don’t know what to do next.DO SOME EXERCISES:you see AA. what he’s readingB. what is he readingC. what does he readD. he reads what2. Does Jack come from Japan Do you know合并成一个句子Do you know ___that__Jack __come___from Japandid your son say in the letter_He told me that he_D__ the Disney the next day.A. will visitB. has visitedC. is going to visitD. would visit4. He didn’t know___A____A. what’s the matterB. what the matter isC. what was the matterD. what the matter was5. Somebody called you just now, but I didn’t know__D__A. who were theyB. who they wereC. who was itD. who it was6. I want to know___D__A. what is his nameB. what’s his nameC. that his name isD. what his name is7. ---Could you tell me __C__she is looking for---Her cousin, Susan.A. thatB. whose C .who D. which8. ---What are you searching the Internet for---I’m trying to find out____.A. What is the difference between SARS and BIRDFLUB. How many persons have died in IraqC. How to protect our environmentD. Why is our Chinese team be able to beat Korea同位语从句一一般来说,在主从复合句中,用作同位语的从句叫同位语从句;它通常跟在某些名词之后,用以说明或解释该名词表示的具体内容;可以跟同位语从句的名词通常有：advice, decision, fact, hope, idea, information, message, news, promise, proposal, reply, report, suggestion, word消息,problem, question, doubt, thought等;eg: They were delighted at the news that their team had won.当听到他们队获胜的消息时,他们欣喜若狂;有时同位语从句可以不紧跟在被说明的名词后面,而被别的词隔开; 如：The thought came to him that Tom might have returned the book.他突然想起汤姆可能已经还了书了;二引导词1. The news that Mr. Li will be our new English teacher is true.2. He hasn’t made the decision whether he will go there.3. The question who should do the work is being discussed at the meeting.4. I have no idea what the boy is doing in the next room now.5. We haven’t yet settled the question where we are going to spend our summer vacation this year.6. I have no idea how I can get to the railway station.7. I have no idea when he will be back．小结：① that引导同位语从句时无词义,也不充当任何成分,但通常不可以省略,如句1；② whether引导同位语从句时意为“是否”,通常不能用if来代替, 如句2;③ 连接代词who, what等可以引导同位语从句,如句3, 4；④ 连接副词where, how, when等可以引导同位语从句, 如句5,6,7;三 that 引导的同位语从句和定语从句① 意义不同：同位语从句用来进一步说明前面名词的内容；而定语从句用来修饰、限定前面的先行词;试比较：1. The news that our team has won the final match is encouraging.2. The news that you told us is really encouraging.② that的功能不同：that引导同位语从句时是一个纯连词,不充当任何成分；而引导定语从句时,不仅起连接作用,而且还指代先行词并在从句中充当主语、宾语等成分;试比较：1. Dad made a promise that he would buy me a CD player if I passed the English test.2. Dad made a promise that excited all his children.③ 可否省略：that在引导同位语从句时,通常不可省略;在引导定语从句时,若在从句中作宾语,通常可以省略,若作主语则不可以省略;DO SOME EXERCISES:I. 请用适当的词填空,使下列句子意思完整;1. They expressed the hope _that_ they would come over to China soon.2. The fact ___that____ he didn’t see Tom this morning is true.3. Word has come __where_____ some American guests will come to our college for a visitnext week.4. He can’t answer the question ___how____ he got the money from his home yesterday.5. Do you have any idea __what___ is actually going on in the classroom6. The problem _______ we should have the meeting in the hall now must be decided at once. II. 下列各句中均有一处错误,请改正;1. Our team has won the game, that made us very happy.2. I’ve come with a message from Mr Wang how he won’t be able to see you this afternoon.3. He must answer the question if he agrees with what she said or not.4. I’ve read the book where you gave me the day before yester day.5. One of the men heldthe opinion when what the book said was right.表语从句表语从句只能置于主句之后,而主句的动词只能是连系动词;名词性从句在be等系动词后作表语时被称为表语从句The problem is how we can get the things we need.问题是我们怎样能弄到我们需要的东西;how 在表语从句中充当方式状语The scissors are not what I need. 这把剪刀不是我所需要的;what 在表语从句中充当宾语What I told him was that I would find him a good play. 我告诉他的是我会给他找个好剧本;what 在主语从句中作直接宾语, that作为表语从句的引导词在该表语从句中不充当句子成分, 不能省略That is what I want to tell you.那就是我想要对你讲的;what在表语从句中充当直接宾语That is why she failed to pass the exam. 那就是她考试不及格的原因;why 在表语从句中充当原因状语“That is why...”是常用句型, 意为“这就是……的原因/因此……”, 其中why引导的名词性从句在句中作表语, 该句型通常用于针对前面已经说明过的原因进行总结下面是两个与“That is why...”形式相似的结构, 它们与“That is why...”结构之间的关系要能够辨析清楚：1“That is why...”与“That is the reason why...”同义, 只不过从语法结构上讲, “That is the reason why...”中why引导的是—个定语从句, 将其中的the reason去掉则与“That is why...”结构一样 That is the reason why I cannot agree.2“That is because...”句型中从属连词because引导的名词性从句在此作表语, 这也是个常用句型, 意为“这就是为什么……/因为……”;“That is because...”与“That is why...”之间的不同在于“That is because...”指原因或理由, “That is why...”则指由于各种原因所造成的后果He did not see the film last night. That is because he had to help his little sister with her homework.昨天晚上他没有去看电影, 那是因为他得帮助他的妹妹做作业;第一句话说明结果, 第二句话说明原因He had seen the film before. That is why he did not see it last night.他以前曾看过那部电影, 因此他昨天晚上没有去看;第一句话说明原因, 第二句话说明结果考题1The traditional view is ____ we sleep because our brain is “programmed” to make us do so. 2007上海A. whenB. whyC. whetherD. that考题2You are saying that everyone should be equal, and this is ____ I disagree. 2004A. whyB. whereC. whatD. how考题3— I drove to Zhuhai for the air show last week.— Is that ____ you had a few days off 1999A. whyB. whenC. whatD. where考题4____ made the school proud was ____ more than 90% of the students had been admitted to key universities. 2003上海春A. What; becauseB. What; thatC. That; whatD. That; because考题5—Are you still thinking about yesterday’s game—Oh, that’s ____. 2003北京春A. what makes me feel excitedB. whatever I feel excited aboutC. how I feel about itD. when I feel excited表语从句与宾语从句的关系宾语从句和表语从句都属于名词性从句;其作用跟名词在句中的作用相同;故充当宾语的句子叫宾语从句,充当表语的句子叫表语从句;宾语从句1对于宾语从句要掌握以下三点①语序: 从句的语序必须是陈述句语序, 即“主语 + 谓语”这种形式;②时态: 当主句是一般现在时或一般将来时的时候, 从句可以是任何时态, 而当主句是一般过去时的时候, 从句时态必须是过去时范围的时态, 即一般过去时, 过去进行时, 过去完成时, 过去将来时;③连接词: 当从句意思完整, 主句意思肯定时, 连接词用that, 且可以省去当从句意思完整, 主句意思不确定或含否定含意时, 常用if或whether是否当从句意思不完整时, 连接词则是代替不完整部分的特殊疑问词;表语从句在句子中起表语作用的从句叫做表语从句,位于主句系动词的后面;表语从句的引导词和主语从句的引导词相同;也是名词性从句的一种;What the police want to know is when you entered the room.警察想知道的是你什么时候进的房间;The trouble is that we are short of funds困难是我们缺乏资金;This is what we should do这是我们应当做的;That is why I want you to work there那就是我要你在那儿工作的原因;His first question was whether Mr. Smith had arrived yet他的第一个问题是史密斯先生到了没有; 从句中的疑问句用正常语序,即陈述语序;as if, as though, because也可用来引导表语从句;She seems as if she had done a great thing她看起来好像做了一件大事;It is because you eat too much那是因为你吃得太多了;状语从句一状语从句的种类1.时间状语从句2.地点状语从句；3.原因状语从句；4.条件状语从句；5.目的状语从句；6.让步状语从句；7比较状语从句；8.程度状语从句；9.方式状语从句；10.结果状语从句;二状语从句的时态一般情况下,时间和条件状语从句的谓语动词一般用“一般现在时”表示“一般将来时”,用“现在完成时”表示“将来完成时”;1时间状语从句1.由when, while, as引导的时间状语从句;when, while和as的区别：when引导的从句的谓语动词可以是延续性的动词,又可以是瞬时动词;并且when有时表示“就在那时”;While引导的从句的谓语动作必须是延续性的,并强调主句和从句的动作同时发生或者相对应;并且while有时还可以表示对比;While my wife was reading the newspaper, I was watching TV.As表示“一边……一边”,as引导的动作是延续性的动作,一般用于主句和从句动作同时发生；as也可以强调“一先一后;As we was going out, it began to snow.当我们出门时,开始下雪了;as强调句中两个动作紧接着先后发生,而不强调开始下雪的特定时间2.由before和after引导的时间状语从句;before引导的从句不再用否定式的谓语,并且当before引导的从句位于主句之后,有时译成“就,才”; 时态：当主句用将来时,从句总是用现在时；如果before引导的从句谓语用的是过去时,则主句动词多用过去完成时,这样以便体现动作发生的先后;After表示主句动作发生在从句动作之后;主句和从句的动作的时间关系正好与before引导的从句相反;3.由till或until引导的时间状语从句;till和until一般情况下两者可以互换,但是在强调句型中多用until;并且要注意的是：如果主句中的谓语动词是瞬时动词时,必须用否定形式；如果主句中的谓语动词是延续性动词时,用肯定或否定形式都可以,但表达的意思不同;4.由since引导的时间状语从句;since引导的从句的谓语动词可以是延续性的动词,又可以是瞬时动词;一般情况下,从句谓语动词用一般过去时,而主句的谓语动词用现在完成时;但在It is ＋时间＋since从句的句型中,主句多用一般现在时;5.由as soon as, immediately, directly, instantly, the moment, the instant, the minute, 等引导的时间状语从句;这些连词都表示“一……就”;hardlyscarcely, rarely…when / before, no sooner…than相当于as soon as之意;主句用过去完成时,从句用一般过去时;当hardly, scarcely, rarely和no sooner位于句首时,主句应用倒装语序;6.由by the time引导的时间状语从句;时态的变化：在一般情况下,如果从句的谓语动词用一般过去时,主句的谓语动词用过去完成时；如果从句的谓语动词用一般现在时,主句的谓语动词用将来完成时;7.由each time, every time和whenever引导的时间状语从句;8.由as long as和so long as引导的时间状语从句;这两个连词表示“只要；和…一样长”;2地点状语从句地点状语从句一般由连接副词where, wherever等引导,已经形成了固定的句型,：句型1：Where＋地点从句,there＋主句;此句型通常译成“哪里……哪里就……”；主句在从句后面时,there可用可不用；如果主句在从句的前面时,一般都不用there;句型2：Anywhere/ wherever＋地点从句,＋主句;状语从句是句子的状语由一个从句充当,来修饰主句中的动词,形容词或副词等;状语从句都由从属连词引导,与主句连接,放在句末时,一般不在前面加逗号;3原因状语从句： because, since, as和for都表示原因;because语势最强,回答why提出的问题,用来说明人所不知的原因;当能够很明显的看出原因或人们已知原因,就用as或since;由because引导的从句如果放在句末,且前面有逗号,则可以用for来代替;但如果不是说明直接原因,而是多种情况加以推断,就只能用for;4目的状语从句：表示目的状语的从句可以由in order that, so that,等词引导;5结果状语从句：结果状语从句常由so...that 或 such...that引导,首先要了解so和such后面分别跟什么词;such是形容词,修饰名词或名词词组,so是副词,只能修饰形容词或副词;so 还可与表示数量的形容词many, few, much, little连用,形成固定搭配;The box is so heavy that I can't carry it.6让步状语从句：是由though, although 引导的状语从句;。
who, whom, whose, that引导的先行词指人的定语从句
who，whom，whose和that作为定语从句的引导词，称为关系代词。
我们现在来看一下先行词指人时，这四个关系代词的使用问题。
下面用句子合并的方法来分析。
一、定语从句用who或that做引导词，在从句中做主语。
把句②变为句①的定语从句，句①中的the boy做定语从句的先行词。
在句②中he指句①中提到的the boy也就是定语从句的先行词，he在句中做主语，因此要用who和that引导定语从句，代替句②中的he，也就是说he就不能出现在定语从句中了。
由此得到句③The boy who broke the window is called Jack.注意：一般情况下定语从句要紧挨先行词。
请把下面每组的两句话合并为一句。
The person must pay for it. / He lost the library book.→The person who lost the library book must pay for it.The boy is very clever. / He is wearing the black jacket.→The boy who is wearing the black jacket is very clever.二、定语从句用who，whom或that做引导词，在从句中做宾语。
因为是做宾语，所以这些引导词可以省略。
请分析下面两个简单句：句①Do you know the young man？句②We met him at the gate.把句②变为句①的定语从句，句①中的the young man做定语从句的先行词。
在句②中him指句①中提到的the young man也就是定语从句的先行词，him在句中做宾语，因此要用whom，that或who引导定语从句，代替句②中的him，也就是说him就不能出现在定语从句中了。
由此得到句③Do you know the young man who/that/whom we met at the gate？(who/that/whom可以省略，句子可以写作：Do you know the young man we met at the gate？)请把下面每组的两句话合并为一句。
定从whom和who的用法
定从whom和who的用法
区别：当who用作疑问代词时，意为“谁”，在句中用作宾语或主语;whom 是who的宾格，用作疑问代词或连接代词时，在正式文体中常作宾语，非正式文体中用主格代替。
如果紧跟在介词之后，只能用whom;如果在从句中用作表语，只能用who，不能用whom。
who用作限制性或非限制性的关系代词，意为“…的人，那个…”“他，他们”，在句中作主语。
whom用于非限制性定语从句中作动词或介词的宾语时不能省略。
who短语：Enthusiasts who同好者;Dragons who小龙人;Peers who同行人;WHO ICTRP织国际临床试验平台;For WHO与相关岗位的关系;对象;到底为了谁。
who例句：
1、Who like me so love you。
谁像我这样爱过你。
2、They took a vote on who should go first。
他们以投票方式决定谁先走。
3、There was a difference of opinion over who had won。
在谁获胜的问题上发生了争执。
4、Most of the money finds its way to the people who need it。
多数的钱都会辗转传到需要的人的手中。
定语从句 关系代词who, that , whom , which的用法
• He likes smooth music _th_a_t_/_w_h__ich___h_e_l_ps___m_e_ relax after a long week at work.
• 看看下面的几道题吧！加油啊！ • 1. The friendly woman is Miss Yin. • The woman _w_h_o_/_th_a_t__i_s _fr_ie_n_d_l_yis Miss Yin. • 2. The beautiful girl is Jane. • The girl __w_h_o_/_t_ha_t___is_ _b_e_a_u_t_if_u_l_ is Jane. • 3. The person is Mr. Li. You just spoke to the
is Miss Yin’s.
在这个句子中，如果先行词是物的话， 你发现用了哪个关系代词了吗？
是的，用that或者which
• The book lying on the table is Miss Yin’s. • The book _w__h_ic_h_/t_h_a_t_ __is_ _l_y_in_g_ _o_n__ t_h_e__ t_a_b_le_ is
你能告诉我哪个句子是定语从句吗？是的， 就是who/that is smiling，在这个句子中 woman叫做先行词，who/that叫做关系代词， 用来修饰人的关系代词有who和that。
• 观察一下下面两个句子
• 1. The woman is Miss Su. The woman is talking to my mother.
定语从句中引导词where,what,whom,whose,that,who的用法
限制性定语从句的特殊用法II. 非限制性定语从句III. 同位语从句IV. 同位语从句和定语从句的区别I. 限制性定语从句的特殊用法1. way + 定语从句way 后面跟定语从句有三种形式。
(1) way + in which + 定语从句例如：She was pleased with the way in which he had accepted her criticism.(2) way + that +定语从句例如：They did n’t do it in the way that we do now.(3) way + 定语从句例如：He didn’t speak the way I do.2. as 引导的定语从句(1) 在由as 引导的定语从句中所修饰的词（先行词）前面常有such 或the same。
例如：Such people as you describe are rare nowadays.I have the same trouble as you (have).(2) As 在定语从句中可以作主语、宾语或表语。
例如：Let’s discuss only such questions as concern everyone of us.（作主语）I never heard such stories as he tells.（作宾语）I’ve never seen such a clever man as he is.（作表语）(3) As 有时引导非限制性定语从句，可在定语从句中作主语、宾语、表语，修饰主句，常解释为正如、如同。
例如：As is known to all, the earth moves round the sun.（作主语）As was expected, he performed the task with success.（作主语）As he predicted, the wind changed.（作宾语）The meeting is very important, as indeed it is.（作表语）II. 非限制性定语从句1.非限制性定语从句由who, whom, which 引导（不可用that），还可以由whose, when, where 等词引导。
who,whom,whose,that,which
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，有时也可以修饰部分或整个句子。
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，由关系词（关系代词或关系副词）引出。
关系代词有：who, whom, whose, that, which，as 。
关系副词有：when, where, why ,how 。
关系代词和关系副词放在先行词和定语从句之间，起连接作用，同时又可做定语从句的一个成分。
当关系代词做宾语时可以省略。
定语从句中的谓语动词必须在人称上和数量上和先行词保持一致。
定语从句分为限制性定语从句和非限制性定语从句。
1 、关系代词引导的定语从句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?（who/that在从句中作主语）He is the man whom/ that I saw yesterday.（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. Please pass me the book whose (of which) cover is green.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.（which / that在句中作宾语）The package (which / that) you are carrying is about to come unwrapped. (which / that在句中作宾语)关系代词that和which 都可以指物，that 和Who 都可以指人，其用法区别：1）不用that的情况a) 在引导非限定性定语从句时(错) The tree, that is four hundred years old, is very famous here.b) 介词后不能用We depend on the land from which we get our food.c)多用who 的情况①关系代词在从句中做主语A friend who helps you in time of need is a real friend .②先行词为those , people 时Those who were either fools or unfit for their offices could not see the cloth .③先行词为all, anyone , ones , one 指人时One who doesn’t work hard will never succeed in his work .④在There be句型中There is a stranger who wants to see you .⑤在被分隔的定语从句中A new teacher will come tomorrow who will teach you German .⑥在有两个定语从句的句子中，其一用who,其二用that,但若先行词后接两个以上的并列定语从句时，后一个必须重复前一个关系代词。
英语定语从句：关系代词、关系副词、who与whom、只用that的情况
英语定语从句：关系代词、关系副词、who 与whom 、只用that 的情况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：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, 它们在从句中能够作主语或宾语。
定语从句中关系代词作从句宾语时能够省略。
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 tolive in.（请找一间充足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。
定语从句(Ⅰ)——that,which,who和whose引导的定语从句
1、定语从句的定义在复合句中,修饰某一名词或代词用作定语的从句叫作定语从句。
被定语从句修饰的词叫先行词,定语从句必须放在先行词之后。
引导定语从句的关系词有关系代that,which,who,whom, whose和as以及关系副词when, where和why等。
关系代词在定语从句中可用作主语、宾语、定语等;关系副词在定语从句中作状语。
2、定语从句引导词的用法(1)that的用法that的先行词是人或物,在定语从句中作主语、宾语或表语。
主要特点有:①that在定语从句中作主语时不省略,作宾语时可以省略;②that不引导非限制性定语从句;③that前不加介词例子 Theforeigners that visited our school yesterday are from Canada.昨天参观我们学校的外国人来自加拿大。
(that代替人,作主语)I like the book very much ( that ) my uncle gaveme.我非常喜欢我叔叔给我的这本书。
(that代替物,作宾语)☆只能用that引导定语从句的情况:①先行词被序数词或形容词最高级修饰;②先行词是不定代词all, the one, everything等;③先行词被 any , the only , the last等修饰④先行词既指人又指物时例子Alice is the only person ( that ) I can trustin the office.爱丽丝是办公室里我唯一信任的人。
(先行词被the only修饰只用that)(2)which的用法先行词是物,在定语从句中作主主语或宾语。
主要特点:①which在定语从句中作主语时不能省略,作宾语时可以省略,引导非限制性定语从句时不能省略;②which的前面可以有介词;③which的先行词可以是前面数个的的句子,意为”这使…….;这一点……”。
例子 A computeris a machine which can do many things for us.电脑是一种可以为我们做许多事情的机器。
定语从句详解：who、whom、whose、which、that引导的定语从句
定语从句详解：who、whom、whose、which、that引导的定语从句一、定语从句基本概念定语从句通常在英语复合句中充当定语的作用，在简单句中，定语往往用来修饰代词、名词或名词性短语,例:Tom is a handsome boy. Tom是个英俊的男孩。
There is a good boy. 有个乖男孩。
将以上的两句转换为定语从句则为：Tom is the boy who is handsome.There is a boy who is good.二、定语从句中两大要素了解了定语的作用之后，现在进入定语从句的正式学习。
想要辨别定语从句，必须了解定语从句的两大要素：关系代词(或关系副词)、先行词。
本节重点讲解由关系代词引导的定语从句，下一节将为大家带来关系副词引导的定语从句。
首先为大家简单例举一个定语从句。
He is a good person who would like to help anyone. 他是一个好人，肯帮助任何人。
其中person就是先行词，who则为关系代词who是用来指代这个先行词person，因此称为关系代词。
此外，who 只能做“人”关系代词，比如boy、girl、people等。
除了who之外，关系代词还有whom、whose、which、that其中，值得注意的是，当定语从句修饰一个“人”时，选择关系代词必须了解先行词在从句中的位置才能做出决定，我们可以用拆分复合句的方法来判断。
例：1.He is a good person who would like to help anyone. 他是一个好人，肯帮助任何人。
拆分后：He is a good person.The person would like to help anyone.拆分后可以发现，先行词在第二句中做主语，因此用who.2.He is the man whom I met yesterday.拆分后：He is the man.I met the man yesterday.拆分后可以发现，先行词在第二句中做宾语,因此用whom.当需要使用修饰“物”的关系代词时，例句是这样的：1.This is a car which(that) is red.拆分后:This is a car.The car is red拆分后发现，先行词在第二句中做主语.2.This is the book which you gave me yesterday.拆分后：This is the book.You gave me the book yesterday拆分后发现，先行词在第二句中做宾语3.This is the room in which you were born.拆分后：This is the room.You were born in the room拆分后发现，先行词在第二句中做宾语。
定语从句基本知识归纳
定语从句定语从句归纳1（基本知识）引导定语从句的词叫作关系代词或关系副词。
关系代词有who、whom、whose、that、which、as等;关系副词有when、where、why等。
它们具有三个功能:1. 连接主句和从句;2. 指代先行词;3. 在从句中充当一种成分。
一、关系代词的用法关系代词的选用:第一,取决于它指代的是人还是物,指代人时可用who、whom、that或as, 指代物时用that、which或as;第二,取决于它在从句中充当的成分,关系代词在从句中可充当主语、宾语、定语等。
指人的who和whom有格的区别:who在从句中作主语(在非正式说法中也可作宾语),whom在从句中只能作宾语,不能作主语,也可以省略。
关系代词whose一般指人,表示"该人的",也可指物,表示"该物的",在从句中作定语。
如: Is this the factory that you visited the other day?The wolves hid themselves in the places that couldn’t be found.That tree, whose branches are almost bare, is very old.I have bought the same dress as she is wearing.The girl who is singing an English song in the next room is Tom’s sister.Didn’t you see the man whom I nodded to just now?二、"介词+关系代词"引导的定语从句关系代词whom, which在定语从句中作介词的宾语时,可以跟介词一起放在主句和从句之间;当先行词指人时,介词后的关系代词用whom, 其余用which,这时的关系代词不能省略; 有时为了使关系代词紧跟它所修饰的先行词,也可以把介词放在从句中有关动词的后面,这时的which可用that替换。
定语从句中先行词指人时,who 和 that 的区别
定语从句中先行词指人时，who 和that 的区别who (whom) 和that的用法区别详解在定语从句中，关系代词who (whom) 和that都可指人和物，在一般情况下，能够互换使用，但在下列情况下值得注意：一、用who (whom) 而不用that的情形(1) 在非限制性定语从句中的先行词指人时，只能用who (whom)。
如：My sister, who is studying abroad, sent me a beautiful present just before this Christmas. 我姐姐，她在国外学习，就在圣诞节前给我寄来了漂亮的礼物。
(2) 当定语从句对指人的先行词实行隔位修饰时，只能用who (whom)。
如：Do you know the girl in front of the blackboard who is speaking to the students? 你理解黑板前面正在给学生们讲话的那位女孩子吗？(3) 当先行词为people和those时，只能用who (whom)。
如：Those who want to go there come here please. 那些想去那儿的人请来这边。
(4) 当先行词为one, ones, anyone, everyone, none, all(指人) 时，只能用who (whom)。
如：Anyone who is against us is our enemy. 任何反对我们的人就是我们的敌人。
(5) 先行词指人，而关系代词在从句中作主语时，一般多用who。
如：The man who came here yesterday said he would come again in a few days. 昨天来这儿的那个人说过几天他会再来。
(6) 在there be句型中名词的定语从句多用who (whom)。
定语从句(1)(that,which,who,who,whose)
注意：在“one of +复数名词+定语从句”结构中，复数名词是先行词， 引导词在定语从句中作主语时，其谓语动词用复数。但当one前有the (only)时，one是先行词，定语从句的谓语动词用单数。如：
He is one of the students who have been to Beijing. 他是去过北京的 学生之一。
1. the most important thing _____we should pay attention to is the first thing____ I have said. 2. He never reads anything _____is not worth reading. 3. The place _____interested me most was the Great Wall. 4.I’d like a car _____front lights are big and round. 5. The man _____talked to you just now is my father. 6.Can you tell me the name of the school _____the villagers built last year?
6. that/which 二、1. (that) he had stolen 2. (that) I want to buy
3. that/which interests us 4. (that/which) I will never forget. 5. that/which we will visit(are going to visit) tomorrow 6. whose homework hasn't been handed in
whom引导定语从句
whom引导定语从句英文whom是一个重点的词语，我们应该要知道它的作用是什么。
快来看看店铺为你准备了whom引导定语从句相关内容，欢迎大家阅读!whom引导定语从句：whom在定语从句中指人，"who"和“that”既可作主语又可作宾语(作宾语可以省略,who作宾语变为whom)，that可以指人也可以指物, who不可指物。
在从句中所起作用如下：(1)Is he the man who/that wants to see you? 他是那个想见你的男人吗?(who/that在从句中作主语)(2)He is the man (whom/that) I saw yesterday. 他就是我昨天见到的那个人。
(whom/that在从句中作宾语)(3)The man whom you spoke to just now is our English teacher. 刚刚和你说话的`那个男人是我们的英语老师。
(whom在从句中作宾语)注：who在定语从句中指人，作主语和宾语，作宾语时可省略;做及物动词或介词的宾语，可省略。
介词＋which ／whom的定语从句用法：1. 语法作用：“介词＋关系代词”在从句中主要起关系副词的作用，即在定语从句中充当状语：（1）表示地点，时间和原因的“介词＋which”分别相当于where，when，why。
I have found the book in which the names of all the early satellites are mentioned. （SEFC 2A L. 55）（＝I have found the book. The names of all the early satellites are mentioned in it. ）The earth on which ／where we live is a planet.I”ll never forget the day on which ／when I joined the League.I know a wood in which ／where you can find roses.Is there any reason for which ／why you should have a holiday？（2）way后常用that代替in which，也可省略that。
英语语法：who (whom) 和that的用法区别详解
英语语法：who (whom) 和that的用法区别详解一、用who (whom) 而不用that的情形(1) 在非限制性定语从句中的先行词指人时，只能用who (whom)。
如：My sister, who is studying abroad, sent me a beautifulpresent just before this Christmas. 我姐姐，她在国外学习，就在圣诞节前给我寄来了漂亮的礼物。
(2) 当定语从句对指人的先行词实行隔位修饰时，只能用who (whom)。
如：Do you know the girl in front of the blackboard who is speaking to the students? 你理解黑板前面正在给学生们讲话的那位女孩子吗？(3) 当先行词为people和those时，只能用who (whom)。
如：Those who want to go there come here please. 那些想去那儿的人请来这边。
(4) 当先行词为one, ones, anyone, everyone, none, all(指人) 时，只能用who (whom)。
如：Anyone who is against us is our enemy. 任何反对我们的人就是我们的敌人。
(5) 先行词指人，而关系代词在从句中作主语时，一般多用who。
The man who came here yesterday said he would come again ina few days. 昨天来这儿的那个人说过几天他会再来。
(6) 在there be句型中名词的定语从句多用who (whom)。
如：There are students in our class who / whom you have met. 我们班有些学生你见过。
(7) 当句子中有两个指人的现行词分别带有两个定语从句时，若一个定语从句的引导词为that, 那么，另一个定语从句的引导词必定为who。
that which who whom whose的用法
that which who whom whose的用法“that、which、who、whom、whose”是英文中的五种关系代词，它们在英语写作中是非常常见的，也是一个难点，它们的使用非常灵活，需要根据句子的成分和语法结构来选择正确的关系代词。
下面，我们将分步骤详细解释每种关系代词的含义和使用方法，让大家更好地理解这些词语。
1. that“that”相当于“那个，那些”。
它通常用于限定性定语从句中，表示一个特定的人或事物，相当于“which”或“who”，但“that”更加强调。
比如：- This is the book that I bought yesterday.(这是我昨天买的那本书。
)- She is the girl that I met in the park yesterday.(她是我昨天在公园里遇到的那个姑娘。
)2. which“which”相当于“哪个，哪些”。
它通常用于非限定性定语从句中，表示一个或多个可选的人或事物，相当于“that”或“who”，但“which”更加自然。
比如：- He bought a car, which cost him a lot of money.(他买了一辆汽车，花了他很多钱。
)- The movie, which was directed by Steven Spielberg, was abig success.(由史蒂文·斯皮尔伯格执导的电影大获成功。
)3. who“who”相当于“谁”，表示一个人。
它通常用于限定性定语从句中，修饰一个人的名字或代词，常用于介绍人和描述人的品质或特点。
比如：- The man who is sitting over there is my friend.(那个坐在那儿的男人是我的朋友。
)- She is the woman who helped me when I was in trouble.(她是在我困难时帮助我的那个女人。
英语定语从句用法大全
This is the room in which my father lived last year. 这是父亲去年居住过的房子。
（二）限制性定语从句与非限制性定语从句
1、限制性定语从句：从句与主句关系密切，去掉从句，主句意义不完整，甚至不合逻辑。
e.g. I was the only person in our office who was invited.（去掉定语从句，意思就不完整）
2、非限制性定语从句：从句对先行词关系不密切，去掉定从句，意思仍然完整。形式上用逗号隔开，不能that用引导。
(6) Where is the man that/whom I saw this morning?
5. whose通常指人，也可指物，在定语从句中做定语
(1) He has a friend whose father is a doctor.
(2) I once lived in a house whose roof has fallen in.
(3) The plane in which we flew to Canada is very comfortable. (T)
注意：1. 含有介词的动词短语一般不拆开使用，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)
who(whom)和that的用法区别详解
定语从句中：who (whom) 和that的用法区别详解在定语从句中,关系代词who (whom) 和that都可指人和物,在一般情况下,可以互换使用,但在下列情况下值得注意：一、用who (whom) 而不用that的情形(1) 在非限制性定语从句中的先行词指人时,只能用who (whom).如：My sister,who is studying abroad,sent me a beautiful present just before this Christmas.我姐姐,她在国外学习,就在圣诞节前给我寄来了漂亮的礼物.(2) 当定语从句对指人的先行词进行隔位修饰时,只能用who (whom).如：Do you know the girl in front of the blackboard who is speaking to the students?你认识黑板前面正在给学生们讲话的那位女孩子吗?(3) 当先行词为people和those时,只能用who (whom).如：Those who want to go there come here please.那些想去那儿的人请来这边.(4) 当先行词为one,ones,anyone,everyone,none,all(指人) 时,只能用who (whom).如：Anyone who is against us is our enemy.任何反对我们的人就是我们的敌人.(5) 先行词指人,而关系代词在从句中作主语时,一般多用who.如：The man who came here yesterday said he would come again in a few days.昨天来这儿的那个人说过几天他会再来.(6) 在there be句型中名词的定语从句多用who (whom).如：There are students in our class who / whom you have met.我们班有些学生你见过. (7) 当句子中有两个指人的现行词分别带有两个定语从句时,若一个定语从句的引导词为that,那么,另一个定语从句的引导词必定为who.如：The boy that you met just now is Li Ming’s brother who just graduated from a university.刚才你会到的那个男孩是李明的刚从大学毕业的弟弟.二、用that 而不用who (whom)的情形1 / 2(1) 当先行词前面有形容词的最高级或序数词修饰时,引导词只能用that.如：The tallest player that plays football for our team is from Shandong.在为我们队踢足球的最高哪个运动员来自山东.(2) 当先行词前面有only,some,any,no,every,little,few,much,all,very形容词修饰时,引导词只能用that.如：He is the only student that said “no” to the teacher.他是唯一的一个对老师说“不”的学生(3) 当主句是以who开头的特殊疑问句时,引导词只能用that.如：Who is the woman that you talked with just now?刚才跟你谈话的那位妇女是谁?(4) the same as 与 the same that三、the same as所引导定语从句的内容与先行词同类而不同物；the same that表示所引导的从句内容与先行词同类同物,即：同一事物.如：She is wearing the same coat that I lost a few days ago.她正穿着我几天前所丢失的上衣.She is wearing the same coat as I lost a few days ago.她正穿着跟我几天前所丢失的上衣同样的上衣.-----精心整理，希望对您有所帮助!。
who whom that的基本用法
The boy who is tall
is Tom.
The boy who is strong is Tom
The boy who is clever is Tom
The boy who is naughty is Tom.
The boy is Tom. The boy is smiling. The boy who is smiling is Tom.
The woman is my mother. She is speaking at the meeting.
The woman that/who is speaking at the meeting is my mother.
判断步骤： （1）判断出先行词 （2）确定关系代词在从句中所担任的成
分以及关系代词的人称和数 (3)确定定语从句的时态 ★定从的时态不受主句的限制
本课学习内容:定语从句中的关系代 词who whom that
学习要求:
掌握whom who that的基本用法,以 及who whom的区别
重点：1 who whom that的基本用法
2 who whom 的区别
难点： who whom 的区别
关系代词的使用取决于先行词，在定语从句中代 替主句中的先行词，所以它在一般情况下都跟 在先行词之后，而且它的人称、数必须和先行 词一致
预习提纲 which 的用法 介词前置的用法
that 指人/物,作主语或宾语 (作宾语可省）
A plane is a machine. It can fly. A plane is a machine that can fly.
He is the man. I told you about him. He is the man (that) I told you about.
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This is the boy.
I sit behind him. This is the boy (whom) I sit behind. This is the boy behind whom I sit.
The man (whom) everyone likes is kind.
The woman got the job.
We saw her on the street. The woman (whom) we saw on the street got the job.
The teacher will give us a talk.
We met the teacher yesterday. The teacher (whom) we met yesterday will give us a talk.
The boy is in the lab. You want to talk to him.
The boy (whom) you want to talk to is in the lab.
the handsome the tall the strong the clever the naughty
boy
The boy is Tom. The boy who is handsome is Tom. The boy who is tall The boy who is strong The boy who is clever The boy who is naughty is Tom. is Tom is Tom is Tom.
The woman that/who is speaking at the meeting is my mother.
判断步骤： （1）判断出先行词 （2）确定关系代词在从句中所担任的成 分以及关系代词的人称和数 (3)确定定语从句的时态 ★定从的时态不受主句的限制 The woman who/that was spoken to yesterday is my mother.
The boy ___________ you (whom/who) want to talk to him is in the lab. The boy to ______you want whom to talk is in the lab.
I know Beckham. Many football fans like him. I know Beckham , ________many whom football fans like.
The boy is Tom.
(主语)
The boy is smiling.
The boy who is smiling is Tom.
The boy is Tom.
The boy has a round face.
The boy who has a round face is Tom.
The scientist will give us a
talk. We met the scientist yesterday.
The scientist (whom/who) we met the scientist yesterday will give us a talk.
The boy is in the lab.You want to talk to him.
The boy is Tom.
He sits in front of me.
The man who sits in front of me is Tom.
The man whom everyone likes is Norman Bethune.
The man whom Chairman Mao was talking to is NB
Norman Bethune
The man with whom I worked is NB
Everyone likes him
Chairman Mao was talking to him
I worked with him
The man is kind.
(宾语)
Everyone likes him.
that 指人/物,作主语或宾语 (作宾语可省）
A plane is a machine. It can fly. A plane is a machine that can fly. He is the man. I told you about him. He is the man (that) I told you about. Beckham is a football star . I like him best. Beckham is a football star (that) I like best. Mary is no longer the girl.She was the girl. Mary is no longer the girl that she was
预习提纲
which 的用法
介词前置的用法
本课学习内容:定语从句中的关系代 词who whom that 学习要求: 掌握whom who that的基本用法,以 及who whom的区别 重点：1 who whom that的基本用法 2 who whom 的区别
难点： who whom 的区别
ቤተ መጻሕፍቲ ባይዱ
关系代词的使用取决于先行词，在定语从句中代 替主句中的先行词，所以它在一般情况下都跟 在先行词之后，而且它的人称、数必须和先行 词一致 The woman is my mother. She is speaking at the meeting.