介词后面定语从句介词后面定语从句英语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。
下面是店铺为大家整理的介词后面定语从句，欢迎阅读与收藏。
1.由“介词+关系代词”引导的定语从句主要用于正式文体，在非正式文体中通常将介词放至句末。
如：This is the man to whom I referred. 我指的就是这个人。
This is the man (whom) I referred to. 我指的就是这个人。
2. 直接用于介词后作宾语的关系代词which不能换成that，直接用于介词后作宾语的关系代词whom不能换成who：介词用于句末，则用作宾语的which, whom也可换成that, who，或者省略不同。
如：这是一个我们讨论了许多的问题。
This is a subject about which we have talked a lot.(which不能换成that，也不能省略)This is a subject which we have talked about a lot. 这是一个我们讨论了许多的`问题。
(which可以换成that，也可以省略)3. 关系副词when, where, why根据情况有时可换成“介词+关系代词which”。
如： That is the day when [=on which] he was born. 那就是他出生的日子。
That is the house where [=in which] he lived. 那就是他住过的房子。
That is the reason why [=for which] he must apologize. 那就是他必须道歉的原因。
4. 在很正式的文体中，“介词+关系代词”引导的定语从句可紧缩成“介词+关系代词+不定式”结构。
如：在那儿孩子们有个玩耍的花园。
正：There the children had a garden in which to play. (很正式)正：There the children had a garden in which they could play. (较正式)正：There the children had a garden to play in. (较口语化)注：这类“介词+关系代词++不定式”结构中的介词不能没有，也不能放在句末。
如不能说There thechildren had a garden which to play in.练习题目：1.I know the boy ____________ you gave the book____________.A.whom；toB.which；toC.to whom；toD.that；to him2.Harbin is the very place ____________ I’m anxious to pay a visit.A.thatB.whichC.on whichD.to which3.Have you been to Hangzhou____________ West Lake is the most beautiful in our country？A.whoseB.whichC.thatD.where4.I know the student ____________ you borrowed the pen.A.thatB.from whomC.from whichD.whom5.Here are players from Japan，____________ are our old friends.A.thatB.whereC.theyD.who6.They arrived at the farmhouse in front of ____________ sat a small boy.A.the placeB.itC.whichD.that7.That is the day ____________ I’ll never forget.A./B.on whichC.in whichD.when8.The letter is from my sister，____________ is working in Beijing.A.whichB.thatC.whoD.she9.I bought a book，____________ I can’t remember now.A.its titleB.whose titleC.the title of itD.the title of that10.I want to use the same dictionary ____________ was used yesterday.A.whichB.whatC.likeD.as11.He is good at English，____________ we all know.A.thatB.asC.thisD.what12.I’ll never forget the days ________ we spent togeth er in the countryside.A.whenB.on whichC.whichD.in which13.This is the best film ____________ I have ever seen.A.thatB.whichC.now thatD.if14.He is the only one of the students ____________ from Shanghai.A.who isB.who areC.they areD.that come15.Mr Scott is one of the foreign experts who ____________ in China.A.worksB.is workingC.are workingD.has been working16.I，who ____________ in America，feel proud of being a Chinese.A.isB./C.amD.being17.He’ll never forget the people and the place ________ she visited in Beijing last year.A.thatB.whichC.whomD.where18.Do you know the reason ____________ he was late？A.for whatB.whichC.for whichD.that1~5 ADABD 6~10 CACBD 11~18 BCAAC CAC用关系代词填空.(答案可能不唯一)（that, which, who, whom, whose）1. These books _____________ you lent me were very useful.2. The storybook ____________ I have just read cannot be easily forgotten.3. A dictionary is a book _____________ gives the meaning to the word.4. Is there anyone ____________ family is in Beijing?5. This is the best film ________ has been shown this year.相关阅读：定语从句thatthat常用作关系代词，可指代某人，也可指代某物，指物时有的时候可用which替换that，指人时可用who替换。
但在下列情况下，一般用that。
一、that指代某物事时1.先行词为all, few, little, much, the one, something, anything, everything, nothing等时。
如：（1）We'll do all that we can to protect the endangered plants and animals.我们将尽我们的最大努力来保护那些濒危的动植物。
(2) There is much that I wan to tell you.我有很多想要告诉你的话。
(3) Is there anything that I can do for you?有什么我可以帮你的吗？2. 先行词被all, every, no, some, any, (a)few, (a)little, much等限定词修饰时。
如：(4) You can borrow any book that you want to read in our school library.在我们图书馆，你可以借任何你想读的书。
3. 先行词被序数词或形容词最高级修饰时。
如：（5）This is the most beautiful city that I've ever seen.这是我见过的最漂亮的城市。
4. 先行词被the only, the very, the right, the last 等修饰时。
如：（6）This is the very factory that they visited last summer holiday.这恰好是他们去年参观的那个工厂。
（7）This is the only painting in this style that we have.这种风格的画我们仅有一幅。
5. 先行词是并列结构，既有人又有物时。
如：（8）He talked happily of the writer and his books thatinterested him.6. 先行词前有the same 修饰，表示和先行词是同一物时。
如：（9）This is the same purse that I lost yesterday.这就是我昨天丢的那个钱夹。
注：如果表示的是与先行词同一类或相似的某物，则用the same…as….如：（10）This is the same purse as I lost yesterday.这个钱夹和我昨天丢的那个一样。
7. 先行词为数词时。
（11）Look at the books on the bookshelf. You can see the two that you bought me for my birthday.瞧书架上那些书。