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什么是同位语〔英语

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什么是同位语〔英语
同位语从句
  一、在复合句中用作同位语的从句叫同位语从句.它一般跟在某些名词后面,用以说明该名词表示的具体内容.如:
  I heard the news that our team had won.我听到了我们队获胜的消息.
  I had no idea that you were here.我不知道你在这里.
    二、可以跟同位语从句的名词通常有new,idea,fact,promise,question,doubt,thought,hope,message,suggestion,word(消息),possibility等.如:
  I’ve come from Mr wang with a message that he won’t be able to see you
this afternoon.  我从王先生那里来,他让我告诉你他今天下午不能来看你了.
  三、英语中引导同位语从句的词通有连词 that,whether,连接副词 how,when,where等.(注:if,which
不能引导同位语从句.)如:
  l have no idea When he will be back.我不知道他什么时候回来.
  He must answer the question whether he agrees to if or not.
  他必须回答他是否同意这样一个问题.
  四、有时同位语从句可以不紧跟在说明的名词后面,而被别的词隔开.如:
  Several years later,word came that Napoleon himself was coming to
inspect them.
  几年以后,有消息传来说拿破仑要亲自视 察他们.
  The thought came to him that maybe the enemy had fled the city.
  他突然想起可能敌人已经逃出城了.
  五、同位语从匈与定语从句的区别.
  1、同位语从句与前面的名词是同位关系,即说明它前面名词的内容;而定语从句与前面的名词是修饰与被修饰关系,即限定它前面的名词范围,或补充一些情况.如:
  The news that l hove passed the exam is true.我通过了考试这一消息是真的.
  (同位语从句,即从句所表达的意思就是前面名词的内容.)
  The news that he told me just now is true.他刚才告诉我的消息是真的.
  (定语从句,从句对前面名词起修饰限制作用,即“他告诉我的”那个消息,而不是别的消息.)
  2、引导同位语从句的that是连词,在从句中不充当任何成份,而引导定语从句的that是关系代词,除起连接作用外,还在从句中充当主语、宾语或表语等.如:
  The idea that computers can recognize human voices surprises many
people.
  计算机能够识别人的声音的想法使许多人感到惊奇.(that在从句中不充当任何成份.)
  The idea that he gave surprises many people.他提出的观点令许多人感到吃惊.
  (that在从句中作gave的宾语.)