雅思官方對(duì)于寫作的評(píng)判遵循global scoring的原則，如何提高句子的表現(xiàn)力，使考官能夠impressive,來提升自己的寫作level當(dāng)屬學(xué)生最感困惑之處，往往加倍的努力并不一定收效顯著，還會(huì)在具體寫作時(shí)捉襟見肘，錯(cuò)誤疊出，這大部分是由于平時(shí)積累欠缺，對(duì)西方寫作風(fēng)格掌握不夠的緣故。針對(duì)大部分考生備考時(shí)間短的現(xiàn)實(shí)，分析認(rèn)為，除了加強(qiáng)練習(xí)不同的寫作話題，積累觀點(diǎn)，儲(chǔ)備功能性套句以外，若能從定語從句的角度具體細(xì)致地進(jìn)行練習(xí)，也不失為良策。因?yàn)樗邆淙缦绿攸c(diǎn)：

一、簡單易操作

定語從句是中學(xué)語法內(nèi)容中的重要部分之一，大部分同學(xué)只是對(duì)其用法模糊而已，不夠細(xì)致和確定而已，不存在對(duì)根本概念的輸入難度。但正因?yàn)槿绱?，也使得考生容易掉以輕心，此時(shí)教師應(yīng)充分強(qiáng)調(diào)其重要性。

由于大部分學(xué)生手中都有現(xiàn)有的語法書，只需要提醒學(xué)生關(guān)注相應(yīng)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(diǎn)，方便學(xué)生在練習(xí)時(shí)查對(duì)。

1.當(dāng)先行詞為all, little, much, few, everything, none 等不定代詞時(shí)關(guān)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(dāng)先行詞既有人又有物時(shí),關(guān)系代詞用that, 不用which.

He asked about the factories and workers that he had visited.

3.當(dāng)先行詞有形容詞最高級(jí)修飾時(shí),關(guān)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(dāng)先行詞有序數(shù)詞修飾時(shí),關(guān)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(dāng)先行詞被the only, the very, the same, the right等修飾時(shí),關(guān)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(dāng)先行詞被all, every, any, much, little, few, no等修飾時(shí),關(guān)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(dāng)主句是以which開頭的特殊問句時(shí),定語從句關(guān)系代詞一般用that而不用which.

Which of the books that had pictures was worth reading?

8.在強(qiáng)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(guān)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(shí), 用as, 不用which.

Mary was late again, as had been expected.

11.As 引導(dǎo)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(dǎo)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.

二、效果顯著

定語從句能比較顯著地彰顯出寫作者的實(shí)力。一個(gè)恰到好處的定語從句，能體現(xiàn)出作者對(duì)整體句子較為精確的掌控能力，并增強(qiáng)句子的緊湊感。

三、便于修正

由于定語從句并非語法難點(diǎn)，學(xué)生們?cè)诰毩?xí)時(shí)也可進(jìn)行 peer correction, 方便易行。

四、方便示范

在老師撰寫的雅思高分范文中，很容易找到相應(yīng)的定語從句范文例句，方便示范給學(xué)生，進(jìn)行討論和仿寫。

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