定语从句中只用WHO,不用that的情况
定语从句不用that的情况
定语从句不用that的情况定语从句不用that的情况定语从句中比较容易处理方面是，定语从句中“that”多可省略，表现为关系代词作宾语的情况，下面是店铺给大家整理的定语从句不用that的情况的相关内容，希望能给你带来帮助!（一）定语从句不用that的情况1、不能用that的情况介词前置时；非限定性定语从句中先行词本身是that多用who，不用that的情况先行词为anyone，one，ones时；先行词为those，he和people时；这些词代替指人，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。
which，that 用来指物（有六种情况只可用that而不用which）(用作主语、宾语，作宾语时可以省略），例如：（1）The prosperity which/that had never appeared before took on in the countryside.农村出现了前所未有的繁荣。
（which/that在从句中作主语）（2）The package (which/that) you are carrying is about to comeunwrapped.你拿那个包裹快要散开了。
定语从句中引导词的特殊用法
一先行词指物的特殊情况：一．必须用that的情况：1. 先行词被序数词、形容词的最高级修饰时，eg. This is the first job that I have taken up.This is the most interesting novel that I have ever read.2. 先行词是不定代词,something somebody nothing anything 等或是all little much 时，eg. There is something that I want to tell you.3. 先行词被all/ any/ every/ each/ few /little/ no/ some/ much/ only/ none/ both/ either/ neither 等修饰时，eg. I have read all the books that you lent me.4. 先行词被the only, the last, the very…修饰时,eg. This is the only method we can use.5. 先行词又有人又有物时，eg. They talked about things and persons that they know in the school.6. 主句以who 或which开头时，eg. Who is the old man that speak to you just now ?二、修饰物时只用which不用that的情况1，引导非限制性定语从句时。
例如：Bamboo is hollow, which makes it light.竹子是空心的，这使得他很轻。
2，当关系词前有介词时。
例如：This is the room in which Chairman Mao once lived.这就是毛主席曾经住过的地方。
定语从句易犯错误、that、who的固定用法
2
1.Some of the girls I invited them did not come.
此句因删去them，因为从句的宾语时省略了whom/who.
2. Is this the photo which you took it last week?
应删去it，因为从句的宾语时关系代词which，无需再用it了。
二、把定语从句谓语动词的单、复数弄错。
误：Anyone who break the law will be punished．
正：Anyone who breaks the law will be punished．
译：任何违犯法律的人将被处罚。 析：应改break为breaks，因为who指anyone，
3)This is the very book that belongs to him. He is just the person (that) we are looking for.
(RULE3)先行词被the only, the very, the same, the last, just the等修饰时。
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that和which在指物的情况下一般都可以 互换, 但在下列情况下, 一般用that而不用 which。 2)This is the first book (that) he has read.
This is the best place (that) we have visited. (RULE2) 先行词被序数词或最高级修饰时。
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that和which在指物的情况下一般都可以 互换, 但在下列情况下, 一般用that而不用 4) wWheicwhe。re deeply impressed by the teachers and the schools that we had visited there. (RULE4)当并列的两个先行词分别表示人 或物, 用关系代词that
定语从句关系词特殊情况
定语从句关系词一、先行词指物，只用that不用whi ch的特殊情况：1、先行词是不定代词all, little, few, someth ing等或被不定代词any, each, every, much, (a) little, (a) few等修饰时。
Eg. Do you have anythi ng that I can do for you? / Thereis much (work) that he can do here.2、先行词是形容词最高级或被最高级所修饰时。
Eg. This is the most intere sting storythat I have heard.3、先行词是序数词（以及last）或被序数词所修饰时。
Eg. This is the firstcity that I visite d in China.4、先行词前有t he very, the only, the just等修饰时。
Eg. This is the very pen that I lost yester day.5、一个句子带有两个定语从句，一个已用wh ich, 为避免重复，另一个只能用that。
Eg. They builtup a factor y whichproduc ed things that sold well.6、先行词既有人又有物时。
Eg. Do you rememb er the things and person s that we oftentalked aboutin our childh ood?7、主句是以wh o或whi ch开头的特殊疑问句时。
Eg. Who is the girl that is standi ng there? / Whichis the car that you bought last night?注：当先行词指人时，除了第6、7条以及有t he same修饰不能用wh o之外，其他情况既能用that又能用wh o/ whom引导。
不定代词定语从句
不定代词定语从句不定代词定语从句大家了解不定代词定语从句用法吗？以下是店铺分享的不定代词定语从句用法，欢迎大家阅读参考！一、不定代词定语从句用法在限制性定语从句中,当先行词指人时,关系词可用who(作宾语是还可用whom)或that,二者常可互换.但在下列情况中,用who(m),而不用that：(1) 当先行词是one,ones,any,few,anyone,anybody,someone,somebody,everyon e,everybody等词时.如：Is there anyone who can answer this question?He was among the few who managed to live through the enemy prison camp.注：在非正式文体中可以说：You’re the one that knows where to go.)(2) 当先行词是he,they,those,people,person等词时.如：He who wants to catch fish just not mind getting wet.Those who are against the proposal put up your hands.注：在固定结构的谚语或习语中,可用he that….如：He that promises too much means nothing.(3) 当先行词有较长的后置定语修饰时.如：Do you know the writer in blue with thick glasses who is speaking at the meeting?(4) 在分隔式定语从句中,若先行词指人,为了明确修饰关系,应当用who(m).如：A new master will came tomorrow who will teach you German.There’s only one student in the school who/whom I wanted to see.I was the only person in my office who was invited.(5) 两个定语从句同时修饰一个指人的先行词,第二个定语从句常用who(m)来引导,如：She is the only girl I know who can play the guitar.二、定语从句用法归纳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。
that在定语从句的用法
that在定语从句的用法that在定语从句的用法定语从句关键词that/which/who，是中考的一个重难点。
本文是店铺为大家收集整理的that在定语从句的用法，欢迎参考借鉴。
1. 不用that的情况(1) 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.(2) 介词后不能用。
We depend on the land from which we get our food.We depend on the land that/which we get our food from.2. 只能用that作为定语从句的关系代词的情况(1) 在there be 句型中，只用that，不用which。
(2) 在不定代词，如：anything, nothing, the one, all等作先行词时，只用that，不用which。
(3) 先行词有the only, the very,the same,the last,just修饰时，只用that。
(4) 先行词为序数词、数词、形容词最高级时，只用that,不能用which。
.(5) 先行词既有人，又有物时。
(6) 先行词指物，在主句中作表语时.(7) 为了避免重复.(8) 先行词是the way或the reason时，that可作关系副词，也可省略(9) 主句的主语是疑问词who /which时定语从句中的that和which用法区别that和which在从句里都可以做宾语和主语，做宾语时可以省略。
在定语从句中,有种说法叫"关宾省"，意思是关系代词在限制性定语从句中作宾语可以省略，不管是that，which，还是whom。
但是which能引导非限制性定语从句，that则不行。
其次，记得以下只能用that的几种情况：1. 当先行词为all, much, little, none及由any, every, some, no 所构成的复合不定代词时。
英语定语从句例句
英语定语从句例句定语从句指一个句子跟在先行词后进行修饰限定。
例如：I know the girl who you met.我认识你遇见的这个女孩。
girl是先行词，who you met是修饰的从句。
第一种：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、表语等成分。
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ofwhich 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 cover is green.=Please pass me the book the cover of which 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 has never been seen before appears in the countryside.农村出现了前所未有的繁荣。
(which /that在从句中作主语) The package which / that you are carrying is about to come unwrapped.你拿的包快散了。
that与who的用法区别
that与who的用法区别1. 两者均可指人，有时可互换（包括当先行词为 all, anyone, someone等，也包括先行词受the only等的修饰时All that [who] heard him were delighted. 所有听了他讲话的人都很高兴He is the only one among us that [who] knows Russian.他是我们中间唯一懂俄语的人Anyone who [that] is over sixteen is allowed in.任何超过十六岁的人都允许进去It is impolite to turn your back on someone who [that] is speaking to you. 人家跟你说话，你把背朝人是不礼貌的定语从句能用that引导的情况：1．先行词是最高级或被最高级修饰This is the most interesting book that l have ever read.2、先行词是序数词或被序数词修饰The second foreign country that l expect to visit is Greek. 3、当先行词为something，anything，nothing，none，no，little，much，all，few等不定代词时用that4.先行词既有人又有物时I made a speech on the men and things that I had seen abroad.我就我在国外所见到的人和事作了报告Can you remember the scientist and his theory that we have learned?5．当先行词带有the only, the very, the same, the last, the one， the right ，one of等词时This is the very good dictionary that I want to buy.He is the only person that l want to talk to.6．在which，who，whom 引起的问句中，为避免重复，常用thatWho was it that won the World Cup in 1982?who指物用that。
关系代词that和who的区别
关系代词that和who 的区别首先：用作关系代词的who 和that 都可以引导定语从句，用于指人，两者常可互换，但以下几点需注意：用法一：在all, nobody, no one, somebody, someone, anybody 等词之后两者都可用，但以用that 较普通。
例:Hands up, anyone who knows the answer.知道答案的请举手。
All who / that heard the story were amazed.听到这个故事的人都感到吃惊。
He was a man who was beloved by all who knew him.每一个他所认识的人都敬重他。
用法二：在序数词、形容词最高级以及the only, the same, the very 等之后两者都可用，但以用that 较普通。
例:She is the most beautiful girl I ever saw.她是我生平见过的最美丽的女孩。
用法三：引导非限制性定语从句时，通常只用who。
例: He confessed to his wife, who said she had thought as much. 他向妻子坦白了，他妻子说她事先已料到会如此。
Mrs Smith, who has a lot of teaching experience, will be j oining us next term.史密斯夫人很有教学经验，她下个学期将来与我们一道工作。
用法四：当先行词是一个既指人又指物的并列词组时，通常只用that。
例:He was watching the children and parcels that filled the car.他望着塞满车的孩子和包裹。
The passengers and the suitcases that were still waiting had to be transferred to another plane.仍在等待的乘客和行李只得改乘另一架飞机。
用which不用that的用法总结
在英语中，which和that都是用来引导从句的连词，但它们在某些情况下可以被用来代替。
以下是使用which而不是that的一些常见情况：在非限制性定语从句中，通常使用which代替that。
非限制性定语从句通常用于描述主句中的某个名词或代词，但并不限制其范围或内容。
例如：I like the book, which was written by a friend of mine.我喜欢这本书，这是我的一个朋友写的。
在问句中，通常使用which代替that。
特别是在要求对方提供更多信息或作出选择时。
例如：Which city would you like to visit first?你想先参观哪个城市？3. 在句子中如果有多个从句，其中一个从句是询问某个人或事物的特定信息，而另一个从句是提供这个信息，此时可以使用which代替that。
例如：He told me which team won the game, but I didn't ask him who was playing.他告诉我哪个队赢了比赛，但我没有问他谁在比赛。
4. 在引导介词宾语从句时，可以使用which代替that。
介词宾语从句通常用于描述主句中的某个名词或代词的位置、时间、原因或其他情况。
例如：I am interested in the project in which you are involved.我对你参与的那个项目感兴趣。
5. 在引导非限制性定语从句时，也可以使用which代替that。
非限制性定语从句通常用于描述主句中的某个名词或代词，但并不限制其范围或内容。
例如：The book, which was written by a local author, was a bestseller.。
不定代词定语从句
不定代词定语从句 ⼤家了解不定代词定语从句⽤法吗？以下是店铺分享的不定代词定语从句⽤法，欢迎⼤家阅读参考！ ⼀、不定代词定语从句⽤法 在限制性定语从句中,当先⾏词指⼈时,关系词可⽤who(作宾语是还可⽤whom)或that,⼆者常可互换. 但在下列情况中,⽤who(m),⽽不⽤that： (1) 当先⾏词是one,ones,any,few,anyone,anybody,someone,somebody,everyone, everybody等词时.如： Is there anyone who can answer this question? He was among the few who managed to live through the enemy prison camp. 注：在⾮正式⽂体中可以说：You’re the one that knows where to go.) (2) 当先⾏词是he,they,those,people,person等词时.如： He who wants to catch fish just not mind getting wet. Those who are against the proposal put up your hands. 注：在固定结构的谚语或习语中,可⽤he that….如： He that promises too much means nothing. (3) 当先⾏词有较长的后置定语修饰时.如： Do you know the writer in blue with thick glasses who is speaking at the meeting? (4) 在分隔式定语从句中,若先⾏词指⼈,为了明确修饰关系,应当⽤who(m).如： A new master will came tomorrow who will teach you German. There’s only one student in the school who/whom I wanted to see. I was the only person in my office who was invited. (5) 两个定语从句同时修饰⼀个指⼈的先⾏词,第⼆个定语从句常⽤who(m)来引导,如： She is the only girl I know who can play the guitar. ⼆、定语从句⽤法归纳 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。
定语从句关系词用法
定语从句关系词用法定语从句关系词用法英语是一种西日耳曼语支，最早被中世纪的英国使用，并因其广阔的殖民地而成为世界使用面积最广的语言。
下面是店铺收集整理的定语从句关系词用法，仅供参考，大家一起来看看吧！定语从句关系词用法1一、定语从句关系词的用法与选择关系词的用法关系词分关系代词和关系副词.关系代词主要有that,who,whom,whose,which,as 等,其中who和whom 只用于指人,which和as 只用于指事物,whose和 that既可于指人也可用于指物,它们在定语从句可用作主语、宾语、表语或定语；关系副词主要有when,where 和why,其中when表示时间,where表地点,why表原因,它们在定语从句中均用作状语：A plane is a machine that can fly.飞机是一种能飞行的机器.(that 指物,在从句中用作主语)I have forgotten everything that I learnt at school.我把学校学的所有东西都给忘了.(that指物,在从句中句作宾语)The man who lives in that house is my uncle.住在那座房子里的人是我叔叔.(who指人,在从句中作主语)The house whose windows are broken is empty.破了窗户的那座房子是空的.(whose指物,在从句中作定语)There are some students whose questions I can’t answer.有些学生提出的问题我回答不了.(whose指人,在从句中作定语) He is not such a fool as he looks.他并不像他看起来那么傻.(as 指人,在从句作表语)关系词的选择选择关系词可考虑以下四点：(1)一看先行词的意义,即分清先行词是指人、指物、时间、地点还是原因(如指物时不能用who或whom,指人时通常不用which等).(2)二看关系词的句能,即分清关系词是担任什么句子成分,是作主语还是宾语、是作定语还是状语等(如作定语通常用whose,有时也用which；作状语要用when,where,why).(3)三看定语从句的种类,即分清是限制性定语从句还是非限制性定语从句(如that和why通常不引导非限制性定语从句)(4)四看文体,即分清是正式文体还是非正式文体,是书面语体还是口语体.二、定语从句中关系副词的用法关系副词，顾名思义，是联系先行词和定语从句的词，属于副词。
that在定语从句中的用法总结
that在定语从句中的用法总结that在定语从句中的用法总结从句，即从属子句，是复句中具有分属地位的分句，它是一种绝大部分语言都有的语法结构。
在现代汉语的语法中，“从句”不作为专业术语被使用。
以下是店铺整理的that在定语从句中的用法总结，供大家参考借鉴，希望可以帮助到有需要的朋友。
that在定语从句中的用法1(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.We depend on the land that/which we get our food from.(2) 只能用that作为定语从句的关系代词的情况(a) 在there be 句型中，只用that，不用which。
(b) 在不定代词，如：anything, nothing, the one, all等作先行词时，只用that，不用which。
(c) 先行词有the only, the very,the same,the last,just修饰时，只用that。
(d) 先行词为序数词、数词、形容词最高级时，只用that,不能用which。
(e) 先行词既有人，又有物时。
(f) 先行词指物，在主句中作表语时.(g) 为了避免重复.(h)先行词是the way或the reason时，that可作关系副词，也可省略(i) 主句的主语是疑问词who /which时that在定语从句中的用法2首先、that既可以代指物，也可以代指人。
例1：Tom doesn’t like the birthday present that his father bought him.汤姆不喜欢他爸爸买给他的生日礼物。
定语从句的特殊用法
定语从句中的特殊用法定语从句是起定语作用的,修饰,说明名词,代词或句子内容的从句,被定语从句修饰的词叫做先行词。
引导定语从句，并在句中担任成分的词叫做关系代词或关系副词。
定语从句是高考常考内容之一，使用时要尤其注意以下十种特殊用法。
一、只用that不用which的情况1、当先行词是al l, little, few, much, somethi ng, everyth ing, anythin g, nothing, none等不定代词时。
如： Everyth ing that happene d then was like a nightma re.当时发生的一切就像是一场噩梦。
I will tell him all that you told me at the ball.我要把你在舞会上跟我说的话全都告诉他。
2、当先行词被on ly, any, few, little, no, all, just, very（恰好的,表示强调）等词修饰时。
例如：The only thing that we could do was to wait.我们能做的只是等待。
That’s the very thing that we can do.那正是我们能做的事。
3、当先行词是序数词、形容词最高级或先行词被序数词或形容词最高级修饰时。
例如：The first place that we visited was the Great Wall.我们参观的第一个地方是长城。
This is the best novel that I have ever read.这是我看过的最好的小说。
4、被修饰词为数词时。
例如：Yesterd ay I caughttwo fish and put them in a basin of water. Now you can see the two that are still alive. 昨天我捉到了两条鱼，把它们放在一盆水里。
英语里什么叫定语从句
英语里什么叫定语从句英语里什么叫定语从句定语从句：一个简单句跟在一名词或代词后（先行词）进行修饰限定，就叫做定语从句。
在主句中充当定语成分。
被修饰的词叫先行词。
定语从句不同于单词作定语的情况，它通常只能放在被修饰的.词（即先行词）之后。
【关系词的特定选择】1、只用that不用which1）当先行词是序数词或被序数词、最高级，关系词用that。
2）当先行词既有人又有物时，用that。
3）当先行词带有theonly,thevery,thesame,thelast,theone等词时，用that。
4）当主句中有who或which时，为避免重复用that。
5）当先行词为something，anything，nothing，none，no，little，much，all等不定代词时用that。
2、只用who不用that1）如果先行词是those,they,all,persons,people,he,anyone,one时用who2）当先行词指人并含有较长的后置定语从句或在被分割的定语从句中时。
3、只用which不用that1）当主句先行词后有介词时，用which。
例：ThisistheoneofwhichI'mspeaking。
2）非限定性定语从句，用which。
3)描述句中一般用which。
例：Beijing，whichwasChina'scapitalformorethan800years。
4）those+复数名词之后，多用which.例：Shopkeeperwanttokeepanumberofthosegoodswhichsellbest。
5）先行词本身是that时，用which。
只用who不用that的几种定语从句情形解析
在定语从句中who和which都是关系代词，都在句中作主语，that除作主语以外还可以作宾语， 指代人或物，而who只能指人。在接下来的讲解中会看到只用who不用that的情形。 1.只指人，并且在从句中作主语的情况 A.The man who is a new one has rent a flat in downtown of New York for a long time. 新来的这个人在纽约市中心租了一栋公寓，有一段时间了。（the man 指人并在句中作主语） He who does not reach the Great Wall is not a true man.不到长城非好汉。 B.The girl who has looked for a job with the help of her tutor is fortunate. 这个女孩在导师的帮助下找到了一份工作，她是幸运的。（the girl 指人并在句中作主语） C.The professor who wrote a book is teaching history. 写这本书的专家正在教历史。（the professor既指人又在句中作主语） 2.在非限定性定语从句中作主语，并指人时 A.He feel honored to work with Mr.Li, who has good reputation in the business. 他感到很荣幸和李先生一起工作，李先生在业界有着良好的声誉。 B.Where is the girl, who was the witness in the severe accident. 作为这场严重车祸的目击者的这Байду номын сангаас女孩在哪？ C.The scientists, who invented a kind of immune medicine. 科学家发明了一种免疫性的药物。 3.先行词是god, angel,fairy等词时，用who不用that。 A.In the oil painting, the state of angels who smiled at each other delivered the artist`s emotional. 在油画中，天使互相微笑的状态传递了艺术家的情感。
英语定语从句例句
英语定语从句例句定语从句指一个句子跟在先行词后进行修饰限定。
例如：I know the girl who you met. 我认识你遇见的这个女孩。
girl是先行词，who you met是修饰的从句。
第一种：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、表语等成分。
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 cover is green.=Please pass me the book the cover of which 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 has never been seen before appears in the countryside.农村出现了前所未有的繁荣。
（which / that在从句中作主语）The package which / that you are carrying is about to come unwrapped.你拿的包快散了。
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定语从句中只用WHO,不用that 的情况
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定语从句中只用WHO ,不用that 的情况一卡通
定语从句中只用WHO ,不用that 的情况
1. 先行词是one, ones 或anyone 时;先行词为those 或被those 修饰，指人时 One who does not work hard will never succeed.
Anyone who breaks the law should be punished. She is the only one of the students who has been to the USA.
Those who learn not only from books but also
through practice will succeed.
2. 在以there be…的句子中，先行词为人时
There is a comrade outside who wants to see you.
3. 当定语从句中又有定语从句,且先行项都为人时 The student that won the first prize is the
monitor who works hard.
4. 当指人的先行项被一些指物的名词修饰时 There 's only one student in the school who I
want to see.
Do you know the woman in blue with a baby on her
back who is working in the fields?
5. 在非限制性定语从句中指人 I met a friend of mine in the street , who had just
come from America.
6. 定语从句中有插入语时, 且先行项为人时
Jackson is a man who I believe is honest.
定语从句中只用THAT ,不用which 的情况
1. 当先行词是不定代词，如all,
everything, anything,
nothing, much, few, little,
none, the one 等 All THAT can be done has been done. I didn't want this recorder; I want the oneTHAT was borrowed yesterday.
2. 先行词（指物的）前面有only, few, one of, little, no, all, every, very 等词修饰时 There's no difficulty THAT we can't overcome. I've read all the books THAT can be borrowed here.
This is the very man THAT I want to see.
3. 先行词被序数词first, last, next 等或形容词的最高级修饰时 This is the first letter THAT I've written in English.
She is the most careful girl THAT I've ever。