雅思語法：定語從句用法分析
導語：定語從句能比較顯著地彰顯出寫作者的實力。一個恰到好處的定語從句，能體現(xiàn)出作者對整體句子較為精確的掌控能力，并增強句子的緊湊感。下面是小編為您收集整理了定語從句用法分析，歡迎閱讀!
定語從句用法分析：
定語從句是中學語法內(nèi)容中的重要部分之一，大部分同學只是對其用法模糊而已，不夠細致和確定而已，不存在對根本概念的輸入難度。但正因為如此，也使得考生容易掉以輕心，此時教師應充分強調(diào)其重要性。
由于大部分學生手中都有現(xiàn)有的語法書，只需要提醒學生關注相應定語從句的`章節(jié)即可，簡單易行。筆者以下列‘常用that 不用which ’的用法舉例，歸納為11點，方便學生在練習時查對。
1.當先行詞為all, little, much, few, everything, none 等不定代詞時關系代詞用that而不用which.
I will tell him all that you told me at the ball.
There are few books that you can read in this book store.
2.當先行詞既有人又有物時,關系代詞用that, 不用which.
He asked about the factories and workers that he had visited.
3.當先行詞有形容詞最高級修飾時,關系代詞用that, 而不用which.
This is the best novel that I have ever read.
Guilin is one of the most beautiful cities that I have ever visited.
4.當先行詞有序數(shù)詞修飾時,關系代詞用that, 不用which.
The first sight that was caught at the Great Wall has made a lasting impression on him.
5.當先行詞被the only, the very, the same, the right等修飾時,關系代詞用that,不用which.
That is the very thing that we can do.
It is the only book that he bought himself.
6.當先行詞被all, every, any, much, little, few, no等修飾時,關系代詞用that,不用which.
You can take any room that you like.
There is no clothes that fit you here.
7.當主句是以which開頭的特殊問句時,定語從句關系代詞一般用that而不用which.
Which of the books that had pictures was worth reading?
8.在強調(diào)句型" It is ... that ..." 中,只用that,不用which.
It is in this room that he was born twenty years ago.
9.在" such (the same) ... as ..." 句型中,關系代詞要用as, 而不用which.
We need such materials as (not which) can bear high temperature.
10.表示" 正如... 那樣 "," 正象..." 之意時, 用as, 不用which.
Mary was late again, as had been expected.
11.As 引導的定語從句可以放在主句前面, 也可以放在主句后面或主句中間,而由 which引導的定語從句只能放在主句后面。
As we all know, oceans cover more than 70% of the earth.
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