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。快来看看小编为你准备了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。

　　I really don”t like the way that he talks.

　　That was the way in which the old lady looked after us.

　　Do it the way I showed you.

　　2. “of ＋which”起形容词的.作用，相当于whose（用来指物），其词序通常是“n. ＋of which”。

　　They live in a house whose door ／the door of which opens to the south.

　　He”s written a book whose name ／the name of which I”ve com- pletely forgotten.

　　3. 可引导限制性定语从句和非限制性定语从句

　　There is a rocket by which the direction of the satellite can be changed. （SEFC 2A L. 55）

　　We carefully studied the photos，in which we could see signs of plant disease. （SEFC 2A L. 55）

　　4. 介词的选择（选择介词时须考虑下列情况）

　　1）介词与先行词的习惯搭配

　　There is no way in which it could be brought back to the earth. （SEFC 2A L. 55）（in与way是习惯搭配）

　　2）介词与定语从句中的动词，形容词的习惯搭配

　　These are the wires with which different machines are connected. （be connected with是习惯搭配）

　　The author with whom all of us are familiar will visit our compa-ny. （be familiar with是习惯搭配）

　　3）同形的先行词，或定语从句中的动词，形容词表示不同的含义时，要根据其含义选用不同的介词。

　　I can”t remember the age at which he won the prize.

　　That is the age in which people live in peace and happiness.

　　age在前句中意为“年岁”，与at搭配；在后句中意为“时期”，与 in搭配。

　　4）复杂介词须保持其完整形式，常见的复杂介词有on the top of，in the middle of，in front of，in spite of，at the back of，because of等。

　　We took a photo of rocket，the length of which was about 30me- tres. （SEFC 2A L. 55）

　　Sound is a tool by means of which people communicate with each other.

　　They marched through the square，in the middle of which stood a monument.

　　5）短语动词中的介词不可与动词分开提至关系代词前。常见的短语动词有listen to，look at，depend on，pay attention to，take care of，look into，break into，get rid of，take part in，make use of，take hold of，catch hold of，catch up with，get along with，look forward to等。此时可用which，who，whom或that，也可将他们省略。

　　（误）This is the girl of whom he will take care.

　　（正）This is the girl whom he will take careof.

　　6）当介词与定语从句中的动词或形容词联系紧密（但不是短语动词）时，介词也可放在动词或形容词的后面。但当介词与从句中的动词或形容词联系不紧密时，则需将介词置于关系代词前。比较：

　　The space station which we drove to was in the desert. （SEFC 2A L. 55）

　　I”ll never forget the day in which I joined the Party.

　　后句中的in若置于句尾则有“孤零零”之感，这时宜将介词置于关系代词前；而前句中的to则可后置。

　　5. 关系代词的选择

　　用于介词后的关系代词只有which，whom，前者指物，后者指人。

　　There are many research stations on the earth in which outer space is studied. （SEFC 2A L. 55）（which指代research stations）

　　We questioned the pilot，from whom we learnt that no other planes had been seen. （SEFC 2A L. 55）（whom指代the pilot）

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