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同位语从句和定语从句区别

时间:2022-01-27 17:44:50 英语 我要投稿

同位语从句和定语从句区别

  在现代英语的语法中,从句指复合句中不能独立成句,但具有主语部分和谓语部分,由that、who、whom、when、why、where、how、whether、which等引导词引导的非主句部分。以下是小编为大家整理的同位语从句和定语从句区别,希望对你有所帮助!

  同位语从句和定语从句区别:

  1、从句所修饰词的不同。同位语从句所修饰词通常是少数一些表示抽象意义的名词,如belief , doubt , fact, hope , idea , news , possibility , thought , order , suggestion , wish ,answer , information , conclusion , decision , discovery , knowledge , law ,opinion , problem , promise , proof , question , report , truth , risk 等。

  定语从句的先行词可以指人、物等。

  例如:

  He has told us a fact that drinking too much does harm to our health.

  他又告诉我们一个事实,过渡饮酒对健康有害。(同位语从句)

  We have no idea that her mother was a professor ten years ago.

  我们不知道她的母亲十年前是个教授。(同位语从句)

  This is the book that I bought yesterday.

  这是我昨天买的那本书。(定语从句)

  I will never forget the day when I joined the Party.

  我将永远不会忘记我入党的那一天。(定语从句)

  2. 连接词的作用不同。连接同位语从句的that只起连接作用,不在从句中担任任何句子成分。whether 和how 可以引导同位语从句,但不能引导定语从句。关系代词和关系副词除了连接从句的作用外,还在定语从句中充当一定的句子成分,如主语、宾语、定语、表语等。引导定语从句的连接词是关系词,常见的关系代词和关系副词有that , which , who ,whose , whom , when , where , why , as,than, but 等。

  The news that he wants to get is whether he will be sent to the countryside.

  他所想得到的消息是他是否将被派往农村。(定语从句,关系代词that作从句get的宾语。)

  Do you have a doubt whether she will be dismissed from school?

  你怀疑她是否能被学校开除吗?(同位语从句)

  I have no idea how his parents were sad on hearing that their son was killed in the earthquake.

  我不知道他的父母一听到他在地震中阵亡是多么悲伤!(同位语从句)

  3. 从句作用的不同。定语从句具有形容词或副词的特点,对先行词起修饰、限定作用,描述先行词的性质或特征,与先行词之间是所属关系。同位语从句具有名词的特点,对中心词作进一步补充解释,是中心词的具体内容。

  例如:

  The man that you saw just now is my bother.

  你刚才看到的`那个人是我的弟弟。(定语从句)

  The suggestion that the meeting be put off proved right.

  推迟会议的建议证明是正确得。(同位语从句)

  The suggestion that he had made is that the meeting be put off.

  他提出的建议推迟会议。(定语从句)

  4. 正确理解和使用同位语从句,还应注意以下几点:

  A.分隔同位语从句:有时同位语从句与其先行词被其它成分分隔开来,这种分隔主要出于修辞原因,即为了保持句子结构平衡,避免头重脚轻。

  The whole truth came out at last that he was a wolf in sheep‘s clothing .

  真相终于大白了,他原来是只披着羊皮的狼。

  B.在某些名词后的同位语从句中,其谓语动词应用虚拟语气形式:(should)+ 动词原形。常见的名词有advice , idea , order , demand ,plan , proposal , suggestion , request 等。例如:

  The suggestion that a new bridge (should) be built was accepted .

  采纳了在这里修建一座新桥的建议。

  C.同位语从句的先行词往往没有复数形式。例如:

  他要来教我们英语的消息昨天我就听说了。

  (正)The message that he would teach us English reached me yesterday .

  (误)The messages that he would teach us English reached me yesterday .

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