初學定語從句應注意的十個問題

邱瑜

定語從句是高一語法中的重難點之一，對于高一學生來說學起來比較吃力，它要求學生具備分析英語句子的能力以及組織句子的能力。學生如果能學好定語從句，就不怕看不懂有復雜句的文章。在定語從句語法教學中，教師需要指導學生注意以下十個問題：

一、“三步走”分析定語從句

首先找先行詞，接著分析所要求填的關系詞在定語從句充當?shù)某煞?，最后把所填的關系詞放在整個句子中翻譯，看句子翻譯是否得體。

例：He who/whom/that wears red coat is my teacher.先行詞為He（指人），用who/whom/that;劃線部分在定語從句中充當主語的成分，所以只能填who/ that，當然在英語口語中也可填whom;最后翻譯：穿紅色風衣的他是我的老師。

二、 that與which的用法

一是只用that不用which的情況：先行詞為all/anything/no/little等不定代詞;先行詞有最高級修飾或有序數(shù)詞修飾;先行詞有only/very/any等詞修飾;先行詞既有人又有物時。例：This is the best book that I have ever seen./There is nothing that can prevent her from doing it.

二是只用which不用that的情況：引導非限制性定語從句;代表整個主句的意思;介詞+關系代詞。例：She had failed in the English exam， which made her mother very sad. /This is the room in which my grandpa lived last year.

三、 as引導定語從句的用法

1.as引導限制性定語從句通常用于“the same...as，such...as”結(jié)構中。

例：I want the same shirt as my sister`s./Such computer as used in our school are made in china.

2.as引導非限制性定語從句既可放在主句之前，也可放在主句之后，用來修飾整個句子。通常用于“as is known to all， as we know， as we expect， as is announced， as is said，as it reported”句型。

四、 定語從句與其他句子的區(qū)別

1.與同位語從句的區(qū)別

定語從句引導詞被稱為關系詞，that充當主語、賓語、表語，有時可省略。同位語從句引導詞被叫做連詞，that不能充當任何成分且不可省略。

例：Word came that their team was defeated.（同位語）

We expressed to them our wish that was the same as their.（定語從句）

2.與強調(diào)句的區(qū)別

判斷一個句子是不是強調(diào)句，只需把“It was...that...”去掉，如果句子的意思跟沒去掉之前句子的意思保持一樣，就說明它是個強調(diào)句。

It was in the house that we stayed last week.（強調(diào)句）

It was the house in which we stayed last week.（定語從句）

五、as引導定語從句與which的區(qū)別

1.當主句和從句語義一致時用as，反之用which來引導非限制性定語從句。

例：Our class made the first in the sports meet， which was unexpected.

Our class made the first in the sports meet， as we expected.

2.當非限制定語從句為否定時常用which引導。例：Tom always plays computer games， which his wife doesn`t like at all.

3.一是含義不同，as一般翻譯為“正好（好像）……”，which一般翻譯為“就（前面）……這一點”，代替前文所說的內(nèi)容;二是位置不同，as可放在主句之前，也可放在主句之后，而which一般只放在主句之后，也就是位于句中。

六、關系代詞在句中作主語時從句的謂語動詞單復數(shù)由先行詞決定

例：The man who lives upstairs speaks English fluently./The students who are in Grade Five are going to visit the Great Wall tomorrow.

“one of the +n.”做先行詞時從句中謂語動詞的單、復數(shù)確定：1.“one of the +n.”做先行詞時謂語動詞用復數(shù);2.當one前面有“the， the only， the very”等修飾時動詞用單數(shù)。例：He is one of the best one that have lived in a village./He is the one of the best one the that has lived in a village.

七、間隔性英語從句

定語從句有時不直接緊靠先行詞，中間由一個定語、狀語或謂語隔開，這就是英語中所說的“間隔性英語從句”。例：There is a strange expression in my teacher`s eyes that I can`t understand.

八、“介詞+which”代替引導定語從句的關系副詞

介詞在關系代詞前，只能用which和whom且不能省略;介詞在尾句，關系代詞可以有which， that， whom，口語中也可用who且可省略。例：The teacher （whom/who/that） you were talking about is my teacher.

九、“介詞+關系代詞”的定語從句中介詞的選擇

根據(jù)后面動詞和介詞的搭配關系選擇。如：In school there was no person to whom she could turn for help.（turn to sb. for help是固定搭配詞組）

根據(jù)與前面名詞的搭配關系選擇。如：I`ll never forget the day on which I first met my boyfriend. （the day前面一般用介詞on）

同時考慮動詞和介詞的搭配關系及介詞和名詞的搭配關系。如：That is the house in which you once lived.（理解成live in the house） /The room has a window， through which I can see the blue sky.（ 理解成see the blue sky through the window）

根據(jù)所要表達的意思來確定：This is my pair of glasses， without which I cannot see clearly.

十、the way做先行詞時定語從句的引導詞

需要主、賓或表語時用關系代詞that、which或省略。主、賓或表語都有時用in which、that或省略，此時that相當于一個副詞。如：This is the way that/in which he does.先行詞為situation/case/stage/point等表示抽象意義的詞，在滿足句中主、賓或表語齊全的情況下，后常用where引導定語從句，譯為“到了某種地步，在某種情況中”?！簦ㄗ髡邌挝唬航魇∮佬驴h第二中學）

□責任編輯：張淑光