定語從句先行詞位置
關(guān)系代詞whom在口語和非正式語體中常用who代替，可省略。以下內(nèi)容是小編為您精心整理的定語從句先行詞位置，歡迎參考！
定語從句先行詞位置
當(dāng)代詞 that 用作先行詞后接定語從句時(shí)，定語從句通常用關(guān)系代詞which來引導(dǎo)。如：
We have that which we need. 我們需要的東西都有了。
That which I say and do is my own affair. 我說什么做什么是我自己的'事。
The true cost often differs from that which had first been projected. 實(shí)際成本經(jīng)常與最初計(jì)劃的有所不同。
What is that which you have just stuffed into the plastic cup? 你剛才塞在塑料杯里的是什么東西?
They say the only real knowledge is that which can be measured. 據(jù)說唯一真實(shí)的知識是可以檢驗(yàn)的知識。
但 that which 這一說法相當(dāng)正式，在現(xiàn)代英語中通常改用 what。如：
That which (=What) many people say is not always true. 很多人說的話并不表示一定是真的。
順便說一句，that 后可接定語從句，但 this 后習(xí)慣上不接定語從句。
定語從句知識點(diǎn)
1.who指人，在從句中做主語
(1)The boys who are playing football are from Class One.
(2)Yesterday I helped an old man who lost his way.
2. whom指人，在定語從句中充當(dāng)賓語，常可省略。
(1) Mr. Liu is the person (whom) you talked about.
注意：關(guān)系代詞whom在口語和非正式語體中常用who代替，可省略。
(3) The man who/whom you met just now is my friend.
3. which指物，在定語從句中做主語或者賓語，做賓語時(shí)可省略
(1) Football is a game which is liked by most boys. ( which 在句子中做主語)
(2) This is the pen (which) he bought yesterday. ( which 在句子中做賓語)
4. that指人時(shí)，相當(dāng)于who或者whom;指物時(shí)，相當(dāng)于which。
在賓語從句中做主語或者賓語，做賓語時(shí)可省略。
(5) The people that/who come to visit the city are all here. (在句子中做主語)
(6) Where is the man that/whom I saw this morning? (在句子中做賓語)
5. whose通常指人，也可指物，在定語從句中做定語
(1) He has a friend whose father is a doctor.
(2) I lived in a house whose roof has fallen in.
whose指物時(shí)，常用以下結(jié)構(gòu)來代替
(3)The classroom whose door is broken will soon be repaired.
=The classroom the door of which is broken will soon be repaired.
(5)Do you like the book whose color is yellow?
=Do you like the book the color of which is yellow?
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