我认为，应该是I can tell that ，she is a good girl

因为句子里面的that是一个特指后面那个girl的，再从句里面它并不是一个整体，翻译过来的话，就是，我可以肯定（that），她真的是个好女孩！

我觉得是哈~

英语定语从句 也谈英语定语从句

指的是定语从句或关系从句。

一、定语从句的定义。

用作定语的从句叫做定语从句(attributive clause)。定语从句通常皆置于它所修饰的名词(或代词)之后，这种名词(或代词)叫做先行词(antecedent)。引导宾语从句的关联词为关系代词和关系副词。关系代词在定语从句中可用作主语、宾语、定语等；而关系副词在定语从句中只可以用作状语。如：

The student who answered the question was John. 回答问题的那个学生是约翰。(who answered the question是关系代词who引导的定语从句，用以修饰who先行词student，who在从句中用作主语)

I know the reason why he was so angry. 我知道他这么生气的原由。(why he was so angry是关系副词引导的定语从句，用以修饰why的先行词reason，why在从句中用作原因状语)

定语从句一般紧跟其先行词之后。如：

The room which served for studio was bare and dusty. 这个用作工作室的房间空荡荡的，布满灰尘。(关系代词which引导的定语从句紧跟其先行词room之后)

有时亦可与先行词分离。如：

A new master will come tomorrow who will teach you German. 明天要来一位新教师教你们德语了。(关系代词who引导的定语从句与其先行词master分离)

二、关系代词的用法。

用作关联词的关系代词有who，whom，whose，that，which等。who，whom，whose指人，who是主格，在从句中用作主语(在非正式英语中亦可用作宾语);whom是宾格，在从句中用作宾语;whose是属格，在从句中用作定语(有时亦可指物)。如：

The man who was here yesterday is a painter. 昨天在这里的那个人是位画家。(主格关系代词who在从句中用作主语)

The man who I saw is called Smith. 我见到的那个人名叫史密斯。(在非正式英语中who 代替了whom，亦可省去不用)

I know the man whom you mean. 我认识你指的那个人。(宾语关系代词whom在从句中用作宾语)

A child whose parents are dead is called an orphan. 失去父母的孩子叫做孤儿。(属格关系代词whose在从句中用作定语，指人)

I’d like a room whose window looks out over the sea. 我想要一个窗户面临大海的房间。(属格关系代词whose在从句中用作定语，指room，可代之以of which，但后者较为正式)

that在从句中既可用作主语，亦可用作宾语（在非正式文体中可省去）；既可指人，亦可指物，但在当代英语中多指物。如：

A letter that is written in pencil is difficult to read. 用铅笔写的信很难读。(关系代词that在从句中用作主语，指物)

The letter that I received from him yesterday is very important. 昨天他来的信很重要。(关系代词that在从句中用作宾语，指物)

Is he the man that sells eggs? 他是卖鸡蛋的那个人吗?(关系代词that在从句中用作主语，指人)

关系代词which在从句中可以用作主语和宾语，一般皆指物，在非正式文体中可以省去。

This is the book which has been retranslated into many languages. 这就是那本有多种译本的书。(关系代词which在从句中用作主语)

Where is the book which I bought this morning? 今天上午我买的那本书在哪儿?(关系代词which在从句中用作宾语，可省去)

which在从句中亦可用作定语和表语。如：

We told him to consult the doctor, which advice he took. 我们叫他去看医生，他听取了我们的劝告。(关系代词which在从句中用作定语)

The two policemen were completely trusted, which in fact, they were. 那两个警察完全受到信任，事实上真是如此。(关系代词which在从句中用作表语)

as，than，but亦可用作关系代词。如：

The two brothers were satisfied with this decision, as was agreed beforehand. 两兄弟对这个决定都满意，它事先已经他们同意了。(关系代词as在从句中用作主语，其先行词是this decision)

He was a foreigner, as I knew from his accent. 他是个外国人，我是从他的口音知道的。(关系代词as在从句中用作宾语，其先行词是前面的整个句子)

I never heard such stories as he tells. 我从未听过他讲的这类故事。(关系代词as与指示代词such连用，在从句中用作宾语，其先行词是such stories)

Her attitude to him was quite the same as it had always been. 她对他的态度同她惯常的态度完全一样。(关系代词as与指示代词same连用，在从句中用作表语，其先行词是same)

You spent more money than was intended to be spent. 你花的钱超过了预定的数额。(关系代词than在从句中用作主语，其先行词是money)

There are very few but admire his talents. 很少人不赞赏他的才干的。(关系代词but在从句中用作主语，其先行词是few，but=who don’t)

关系代词在定语从句中用作介词宾语时，介词既可置于从句之首，亦可置于从句之末。但以置于从句之首较为正式。如：

This is the book for which you asked. 这是你所要的书。(关系代词用作介词for宾语，之首，即which之前)

This is the book which you asked for. 这是你所要的书。(介词for置于从句之末，which在此可省去)

关系代词who和that用作介词宾语时，介词须置于句末。如：

The people you were talking to are Swedes. 你与之谈话的那些人是瑞典人。(关系代词主格who用作介词to宾语时，介词to须置于从句之末，who中口语中可省去)

Here is the car that I told you about. 这儿就是我和你谈过的那辆汽车。(关系代词that用作介词about宾语，介词about须置于从句之末)

有时从句还有其它成分，介词则置于从句之中。如：

This is the boy who he worked with in the office. 那就是与他一道办公的那个男孩。

先行词指人时，关系代词既可用who，亦可用that。但关系代词在从句之中用作主语时，多用主格who。如：

Persons who are quarrelsome are despised. 好争吵者遭轻视。(除外persons，还有people，those，等皆多用who)

All who heard the story were amazed. 听到这个故事的人都感到吃惊。(代词如he，they，any，all，one等之后多用who)

I will pardon him who is honest. 我愿意宽恕他，他是诚实的。(描述性定语从句用who)

I think it is you who should prove to me. 我认为是你应该向我提出证据。(在强调结构中多用who，who在此可省去)

Who is not for us is against us. 谁不赞成我们就是反对我们。(缩合连接代词who为可代之以that)

在下列一些情况中则多用that。如：

)He was the man that the bottle fell on. 他就是瓶子落在其身上的那个人。(此处常用that作宾语指人，亦可用whom)

He is a man that is never at a loss. 他是一个从未一筹莫展的人。(that常用于泛指人)

He was watching the children and parcels that filled the car. 我望着塞满车的孩子和包裹。(兼指人与物时须用that)

Who that you have ever seen can beat him in chess? 你曾见过谁能在棋艺上打败他?(避免与先行词who重复时应用that)

That’s the same man that asked for help the day before yesterday. 这个与前天求援的是同一个人。(先行词前有指示代词same时应用that)

He is not that man that he was. 他已不是过去的他了。(that常用作表语)

I knew her father for the simplest, hardest working man that ever drew the breath of life. 我早知她的父亲是一个世上最简朴最努力工作的人。(先行词前有形容词最高级、序数词或only等词时应用that)

先行词指物时，关系代词that与which往往可以互换。但在下列情况中多用that。如：

All that glitters is not gold. 闪光的东西不都是金子。(不定代词包括复合词something等多后接that)

It was the largest map that I ever saw. 那是我所看见过的最大的地图。(前有形容词最高级等的先行词之后多用that)

It was liberation that brought about a complete change in his life. 是解放给他的生活带来了彻底的改变。(强调结构用that)

There is a house that has bay windows. 有一栋房子有凸出的窗户。(that在此表固有的特点)

The distance that you are from home is immaterial. 你离家的距离是不足道的。(在限制性定语从句中关系代词用作表语应用that，在描述性定语从句中则应用which)

Which was the hotel that was recommended to you? 哪一个是推荐给你的旅馆?(这里用that显然是为了避免重复which)

在下列情况中则多用which。如：

Larry told her the story of the young airman which I narrated at the beginning of this book. 拉里把我在书本开关叙述过的那个关于一个青年飞行员的故事讲给她听。(离先行词较远时常用which)

A store should keep a stock of those goods which sell best. 商店应存在最畅销的货物。(“those+复形名词”之后多用which)

I have that which you gave me. 我有你给我的那个。(which比较正式，在非正式英语中也可用that)

Beijing, which was China’s capital for more than 800 years, is rich in cultural and historic relics. 北京曾是八百多年的中国首都，有很丰富的历史文物。(描述性定语从句一般皆用which)

This is the one of which I’m speaking. 这就是我所讲的那个。(介词之后须用which)

用作关联词的关系副词有when，where，why等。when在从句中用作时间状语，其先行词须是表时间的名词。如：

We will put off the picnic until next week, when the weather may be better. 我们打算把野餐推迟到下周，那时天气可能转好。(关系副词when的先行词是next week)

He came last night when I was out. 他昨晚来时我出去了。(关系副词when的先行词是last night)

since，before，after亦可用作表时间的关系副词。如：

Every hour since I came has been most enjoyable. 我来之后的每一个小时都是非常好玩的。(since用作关系副词)

On the day before we left home there came a snowstorm. 在我们离家的前一天，下了一场暴风雪。(before用作关系副词)

The year after she had finished college she spent abroad. 她大学毕业后的一年是在国外度过的。(after用作关系副词)

that有时亦可用作表时间的关系副词。如：

It happened on the day that I was born. 那件事是在我出生的那一天发生的。(that=when)

Little do I remember the day that I first met her. 我几乎不记得与她初次见面的日子。

where在从句中用作地点状语，其先行词须是表地点的名词。如：

They went to the Royal Theatre, where they saw Ibsen’s “The Doll’s House”. 他们去皇家剧院看了易卜生的《傀儡家庭》。

The place where Macbeth met the witches was a desolate heath. 麦克白遇见女巫的地方是一片荒原。

where的先行词亦可是有地点含义的抽象名词。如：

He has reached the point where a change is needed. 他已到了需要改弦易辙的地步。(where的先行词point是抽象名词)

why在从句中用作原因状语，其先行词只有reason。如：

That is no reason why you should leave. 那不是你必须离开的原因。(why先行词是reason)

He refused to disclose the reason why he did it. 他拒绝透露他做那件事的原因。(why先行词是reason)

有时why可以省去。如：

That’s one of the reasons I asked you to come. 那是我要你来的原因之一。(reasons后省去why)

有时why可用that代替。如：

The reason that he died was lack of medical care. 他死于缺乏医疗。(why由that代替)

当先行词为the way的时候，关系副词也可以用that，例如：

This is the way that he solved the problem. 这是他解决问题的方法。

I don't like the way that he talks. 我不喜欢他说话的样子。

定语从句可分为限制性定语从句与非限制性定语从句。限制性定语从句与先行词关系密切，对它有限制作用。因此不可缺少，否则会影响全句的意义。限制性定语从句前一般不用逗号。如：

What is the name of the boy who brought us the letter? 给我们带信的那个男孩叫什么名字?

There is much which will be unpleasing to the English reader. 有许多东西将会使英国读者不愉快。

The teacher told us that Tom was the only person that was reliable. 老师告诉我们，汤姆是惟一可依赖的人。

I shall never forget the day when we first met in the park. 我永远不会忘记我们在公园相见的那一天。

Is there a store around where we can get fruit? 附近有可以买到水果的商店吗?

Do you know the reason why I came late? 你知道我迟到的原故吗?

非限制性定语从句(non-restrictive)只与先行词有一种松散的修饰关系，用逗号与先行词分开。因此从句中的关系代词不能省略。that一般不引导非限制性定语从句。如：

I like to chat with John, who is a clever fellow. 我喜欢与约翰交谈，他是个聪明人。

Water, which is a clear liquid, has many uses. 水是一种清澈的液体，有许多用途。

Once more I am in Boston, where I have not been for ten years. 我又一次来到了波士顿，我有十年没有到这里来了。

非限制性定语从句形式上是从句，其功能实质上相当于一个分句。如：

Then he met Mary, who invited him to a party. 后来他遇到玛丽，玛丽邀请他去参加晚会。(who实际上=and she)

When he was seventeen he went to a technical school in Zurich, Switzerland, where he studied mathematics and physics. 他17岁时，到瑞士苏黎世一专科学校上学，他在那里学习数学和物理学。(where=and there)

有时非限制性定语从句的含义相当于一个状语从句。如：

We don’t like the room, which is cold. 我们不喜欢那个房间，它很冷。(which is cold=since it is cold)

He said he was busy, which was untrue. 他说他很忙，其实不然。(which was untrue=though it was untrue)

I want him, who knows some English. 我要他，他懂得些英语。(who knows some English=for he knows some English)

英语定语从句

摘 要：定语从句是用一个句子对另一个句子成份的修饰与限定，但在学生运用过程中会出现较多的失误，原因是学生在学习过程中对一些细节及本质理解和掌握的不够好，对此本文将对这些地方加以说明与阐述。

关键词：英语；定语从句；限定；成份；用法

定语从句是英语语法的重点，在英语学习中起着很重要的作用，特别是在应试教育中，学生是否能够准确掌握定语从句直接影响其英语学习水平。定语从句（attribute clause）是用一个句子对另一个句子的一个成份或部分进行修饰与限定，通常置于被修饰的词之后。被修饰的词叫先行词（antecedent），由名词或代词充当。引导定语从句的关联词为关系代词（that. which. who. whose.whom）和关系副词（where. when. Why）。定语从句中关系代词和关系副词的作用，是把作定语的从句和主句被修饰的先行词连接在一起，而且在从句中充当一个句子成分如：主语、宾语、状语等。定语从句从类型上分为限定型定语从句与非限定性定语从句。

1.限定性定语从句

1）由关系代词that引导的定语从句中，that在从句中即可作主语，亦可作宾语（在非正式文体中可省去）；即可指人，亦可指物，但在当代英语中多指物。如：

A letter that is written in pencil is difficult to read.用铅笔写的信很难读。（关系代词that代替先行词letter 在从句中作主语）

The letter( that) I received from him yesterday is very important.昨天他来的信很重要。（关系代词that代替先行词letter在从句中作宾语）

Is he the man that sells eggs 他是买鸡蛋的那个人吗？（关系代词that代替先行词man在句中作主语）

Is he the man ( that )we are talking about(关系代词that代替先行词man在句中作宾语)

2）由关系代词which引导定语从句，which在从句中即可作主语，亦可作宾语；一般皆指物。如:

He came from a family which was very poor.（关系代词which代替先行词family在从句中作主语）

This is the pen which you want.（关系代词which代替先行词pen在从句中作宾语）

同时在限定性定语从句中that. which的用法还有另外一些限制与要求。

A.只能用that，不能用which连接的定语从句。

①先行词部分有不定代词，few, all, little, much, something, nothing, everything时.

如：.All that we have to do is to practice every day.所有我能够做的事情就是每天做练习。

②先行词部分是叙述词或有序数词修饰时。

如：He is the last person (that ) I want to see.他是我最不想见的人。

③先行词是形容词最高级或者是被形容词最高级修饰时。

This is the best that has been used against pollution.这是用来防止污染的最好的办法。

④先行词被all, any, every, few, little, no, some修饰时。

如：I have read all the books that you gave me.我已经把你给我的书全部读完了。

⑤有两个定语从句，其中一个关系代词已用which,另外一个宜用that。

如：Edison built up a factory which produced things that had never been seen before.爱迪生办了一家工厂，生产过去从未见过的东西。

⑥先行词部分既有人、又有物时。

如：They talked of things and persons that they remembered in the factory.

⑦主句已有疑问词who或which时

如：Which is the book that you lost你丢失的是哪一本书？

如：Who is the women that was praised at the meeting在大会上被表扬的那个女的是谁？

B.只能用which不能用that连接的定语从句。

①在非限定性定语从句中，只宜用which，不能用that。

如：London, which is the capital of U.K., is a very beautiful ciry.伦敦市英国的首都，它是一座十分美丽的城市。

②在限定性定语从句中关系代词前有介词时。

如：This is the house in which you will stay.这就是你将要在那里住的旅馆。

③如句中有两个定语从句，其中一个用that则另一个用which。

如：Let me show you the novel that I borrowed from the library which was nearly open to us.

我给你看一下，我从向我们开放的图书馆借的小说。

3）由关系代词who. whom.whose引导定语从句。

who是主格，可以代替人（即它的先行词必须是人），在从句中用作主语（在非正式英语中亦可用作宾语）；.whom是宾格，代替人（即它的先行词必须是人）在从句中作宾语；.whose是所有格，在从句中作定语。它即可以代替人也可以代替物。

如：I met someone who said he knew you。我遇到一个说认识你的人。（主格关系代词who指代先行词someone在从句中作said的主语）

Is that the man whom you referred to那个就是你指的那个人吗？（宾格关系代词whom指代先行词man在从句中作referred to的宾语）

He is the philosopher whose influence has been the greatest.他是影响最大的教授。（所有格关系代词whose指代先行词philosopher在从句中作influence的定语）

Which is the Asian country whose economy is growing the fastest哪个亚洲国家的经济增长最快？（所有格关系代词whose指代先行词Asian country 在从句中作economy的定语）

4）关系副词when. where. why引导定语从句。

关系副词是用来引导定语从句的，它和关系代词一样，具有数种作用：

①在定语从句中指代先行词。

②在定语从句中担任成分――状语，亦即在从句中起副词和介词短语的作用。

③ 起连接作用，它把两个句子连接成为一个带有定语从句的主从复合句。

where在从句中作地点状语，指代地点。

This is the house + I was born in the house./ I was born there. = This is the house where I was born.这就是我出生的那所房子。(where代替先

行词the house，作地点状语，代替there或in the house)

同样上述句子也可以用关系代词来连接，见下面的例句。

This is the house（which/that/可省略）I was born.

This is the house in which I was born.

When 在从句中作时间状语，指代时间。

He came at a time when we needed help.他在我们需要人帮忙的时候来了。（when代替先行词at a time在从句中作时间状语）

此句同样也可以用关系代词表示。

He came at a time( which/that/可省去)we needed help at.

He came at a time at which we needed help.

Why在从句中作原因状语，指代原因。

The reason why I’m calling you is to invite you to a party.我给你打电话的原因就是想邀请你参加一个晚会。（关系副词why代替先行词reason在从句中作原因状语）

带reason的定语从句和表语从句的区别：

Do you know the reason why he was late.

你知道为什么迟到了吗？

定语从句The reason why……

表语从句The reason is that ……

The reason is that I want to invite you to a party.原因就是我想邀请你参加一个晚会。

2.非限定性定语从句。

①限定性定句从句表明修饰语与中心词之间的关系密切,如去掉从句，则意义不完整。

②非限定性定语从句表明先行词与修饰语的关系不十分密切，去掉从句、主句子意思仍完整，形式上用逗号把主，从句隔开。that一般不引导非限定性定语从句。

如：

I like to chat with John, who is a clever boy.我喜欢与约翰交谈，他是个聪明人。

Water, which is a clear liquid, has many uses.水是一种清澈的液体，有许多用途。

Once more I am in Boston, where I have not been for ten years.我又一次来到了波士顿，我已经十年没有到这里来过了。

Then he met Mary, who invited him to a party.后来他遇到玛丽，玛丽邀请他去参加晚会。

When he was seventeen he went to a technical school in Zurich, Switzerland, where he studied mathematics and physics.他17岁时，到瑞士苏黎世一专科学校上学，他在那里学习数学和物理学。

We don’t like the room, which is cold.我们不喜欢那个房间，它很冷。

He said he was busy, which was untrue.他说他很忙，其实不然。

I want him, who knows some English.我要他，因为他懂些英语。

总之定语从句在使用过程中有时也相当于分词短语，是掌握分词短语作后置定语的前提与基础，充分理解定语从句的作用，对于更好掌握修饰修语具有重大作用。

定语从句中，怎样区分when和that引导时

首先得从关系代词关系副词上入手。定语从句的引导词分为关系代词和关系副词，当定语从句的从句部分缺成分（主宾表定时）用关系代词（who、whom、whose、which、that、as）当从句不缺以上成分（或者从句缺状语时）用关系副词(where、when、why)-----因为副词在句中作状语，关系副词在从句中也就充当状语了。还要注意关系副词相当于介词加上which

1.This is the factory where I wroked ten years ago

这个句子This is the factory 是主句， I wroked ten years ago是从句，来修饰先行词factory.从句不缺成分，先行词只能加上介词in在句中作地点状语，所以此题还可以填in which=where

2.This is the factory which I visited last week.

这个句子This is the factory也同样 是主句，但从句 I visited last week.（我参观上周）你读一读就会感觉缺宾语，这样吧先行词factory补上，就完整了（我上周参观工厂），因为是定语从句，所以从句的factory要改成指物的which或that

1.We visited the house where Lu Xun once lived

2.The school where my son studies is near a park

这两个也是同样道理了

1We visited the house 主句Lu Xun once lived（in the house换成in which=where）

2The school 主句 my son studies is near a park句意完整，也可加介词in加先行词=where

P.S.得知道在某地，在某时都属于作状语成分的范畴

这样你明白不？

定语从句与同位语从句是高中英语教学内容的重点，也是英语阅读中的难点，它们相似的位置，使许多学生往往混淆，阻碍了对文章的理解。

一、 定语从句是形容词从句，其作用相当于一个形容词，是用来修饰前面的名词或代词的；同位语从句是名词从句，其作用相当于一个名词，是对前面的名词作进一步解释的。

二、定语从句的引导词在从句中充当一定的成分，可作主语、宾语、状语等；而同位语从句中的引导词在从句只起连接作用，不作任何句子成分。

名词性关系从句

名词性关系从句（英语：nominal relative clause）又叫自由关系从句（英语：free relative clause），名词性关系从句在结构上不含有先行词，它的关系词同时扮演了关系词和先行词的角色，因此名词性关系从句的关系词又叫缩合连接代词。

以上内容参考：百度百科-定语从句