必考英語語法??定語從句

編輯: 逍遙路 關鍵詞: 高中英語 來源: 高中學習網

1在復合句中做定語的從句稱為定語從句,它可以用來修飾名詞或代詞。被定語從句修飾的名詞或代詞叫先行詞。定語從句必須放在先行詞后面。

2引導定語從句的詞通常被稱為關系詞。關系詞一般位于先行詞與定語從句之間,且作為定語從句的一個成分。關系詞又分為關系代詞和關系副詞。

語法知識

I 關系代詞引導的定語從句

關系代詞所代替的先行詞是人或物的名詞或代詞,并在句中充當主語、賓語、定語等成分。關系代詞在定語從句中作主語時,從句謂語動詞的人稱和數要和先行詞保持一致。

1)who, whom, that

這些詞代替的先行詞是人的名詞或代詞,在從句中作主語和賓語。例如:

Is he the man who/that wants to see you? 他就是你想見的人嗎?(who/that在從句中作主語)

He is the man whom/ that I saw yesterday. 他就是我昨天見的那個人。(whom/that在從句中作賓語)

2) whose 用來指人或物,(只用作定語, 若指物,它還可以同of which互換)。例如:

They rushed over to help the man whose car had broken down. 那人車壞了,大家都跑過去幫忙。

Please pass me the book whose (of which) cover is green. 請遞給我那本綠皮的書。

3)which, that所代替的先行詞是事物的名詞或代詞,在從句中可作主語、賓語等。例如:

A prosperity which / that had never been seen before appears in the countryside.

農村出現(xiàn)了前所未有的繁榮。(which / that在句中作賓語)

The package (which / that)you are carrying is about to come unwrapped. 你拿的包快散了。(which / that在句中作賓語)

II. 關系副詞引導的定語從句

關系副詞可代替的先行詞是時間、地點或理由的名詞,在從句中作狀語。

1) 關系副詞when, where, why的含義相當于"介詞+ which"結構,因此常常和"介詞+ which"結構交替使用。例如:

I will never forget the day when I met her. 我將永遠不會忘記我見到她的那一天

Beijing is the place where(in which) I was born. 北京是我的出生地。

Is this the reason why (for which) he refused our offer? 這就是他拒絕我們幫助他的理由嗎?

2)that代替關系副詞,可以用于表示時間、地點、方式、理由的名詞后取代when, where, why和"介詞+ which"引導的定語從句,在口語中that常被省略。例如:

His father died the year (that / when / in which) he was born. 他父親在他出生那年逝世了。

He is unlikely to find the place (that / where / in which) he lived forty years ago. 他不大可能找到他四十年前居住過的地方。

III.判斷關系代詞與關系副詞

方法一: 用關系代詞,還是關系副詞完全取決于從句中的謂語動詞。及物動詞后面無賓語,就必須要求用關系代詞;而不及物動詞則要求用關系副詞。例如:

This is the mountain village where I stayed last year. 這是我去年呆過的山村。

I'll never forget the days when I worked together with you.我永遠不會忘記與你共事的日子。

判斷改錯:

(錯) This is the mountain village where I visited last year.

(錯) I will never forget the days when I spent in the countryside.

(對) This is the mountain village (which) I visited last year.

(對) I'll never forget the days (which) I spent in the countryside.

習慣上總把表地點或時間的名詞與關系副詞 where, when聯(lián)系在一起。此兩題錯在關系詞的誤用上。

方法二: 準確判斷先行詞在定語從句中的成分(主、謂、賓、定、狀),也能正確選擇出關系代詞/關系副詞。

例1. Is this museum ___ you visited a few days age?

A. where B. that  C. on which  D. the one

例2. Is this the museum ____ the exhibition was held.

A. where B. that  C. on which  D. the one

答案:例1 D,例2 A

例1變?yōu)榭隙ň洌?This museum is ___ you visited a few days ago.

例2變?yōu)榭隙ň洌?This is the museum ___ the exhibition was held.

在句1中,所缺部分為賓語,而where, that, on which都不能起到賓語的作用,只有the one既做了主句的表語,又可做從句的賓語,可以省略關系代詞,所以應選D。

而句2中, 主、謂、賓俱全,從句部分為句子的狀語表地點,既可用副詞where,又因 in the museum詞組,可用介詞in + which 引導地點狀語。而此題中,介詞on 用的不對,所以選A。

關系詞的選擇依據在從句中所做的成分,先行詞在從句中做主、定、賓語時,選擇關系代詞(who, whom, that, which, whose); 先行詞在從句中做狀語時,應選擇關系副詞 ( where 地點狀語,when 時間狀語,why 原因狀語) 。


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