同位语从句-用此课件PPT推荐.ppt

1、（5）由由such as,that is引导引导 Some subjects,such as maths and physics,are very difficult to learn.某些学科某些学科,例如数学和物理例如数学和物理,是很难学的。是很难学的。（6）由由of引导引导 The city of Beijing has been greatly changed since 2000.自从自从2000年以来年以来,北京市发生了很北京市发生了很大的变化大的变化。（7）由由or引导引导 The freezing temperature,or freezing point,is the tem

2、perature at which water freezes under ordinary pressure.结冰温度即冰点结冰温度即冰点,是水在常压下结冰是水在常压下结冰时的温度。时的温度。2.同位语从句同位语从句the Appositive clause（1）同位语从句的定义同位语从句的定义 在复合句中用作在复合句中用作同位语同位语的从句称为的从句称为同位语从句。同位语从句是名词性从句同位语从句。同位语从句是名词性从句的一种。它在句中起同位语的作用。的一种。语法精解语法精解（二二）它一般放在它一般放在fact,news,idea,truth,hope,problem,informatio

3、n,belief,thought,doubt,promise,question 等名等名词的后面词的后面,对前面的名词作进一步的解对前面的名词作进一步的解释释,说明前面名词的具体含义。引导同说明前面名词的具体含义。引导同位语从句的词有连词位语从句的词有连词that,连接副词连接副词how,when,where,whether,what等。等。e.g.The hope that he may recover is not gone yet.The problem whether we should continue to do the experiment has been solved.I h

4、ave no idea when he will come back.同位语从句有时被别的词把它同位语从句有时被别的词把它和名词隔开：和名词隔开：注意注意:The story goes that William Tell killed the king with an arrow.Word came that their team had won.同位语从句的表现形式同位语从句的表现形式:由由that引导引导 The fact that you havent enough time to do the work is simply unbelievable.The hope that he m

5、ay come here is not gone yet.The news that he has been elected president of the United States is true.The truth that heavy objects and light objects fall at the same speed is known to all.The problem that she later developed a serious lung disease bothered scientists.由由whether引导引导 The question wheth

6、er we need more time to do the work has not been discussed.由由when引导引导 I have no idea when they will go.有时可用有时可用 namely（即即）,that is to say（也就是说也就是说）,in other words（换句话说换句话说）,that is（那就是那就是）,for example 等引出同位语等引出同位语,说明其说明其前面的名词或代词。有时同位语前面的名词或代词。有时同位语直接跟在名词或代词的后面。直接跟在名词或代词的后面。He told us the good news,n

7、amely,the museum is open to all.There is only one way of improving your English,that is,to practice more.Altogether Dolly had lived for six years,half the length of the life of the original sheep.同位语从句与定语从句的区别同位语从句与定语从句的区别:同位语从句与定语从句在使用中常常混淆同位语从句与定语从句在使用中常常混淆,我们可以从以下几个方面区别它们我们可以从以下几个方面区别它们:同位语从句同位语从

8、句说明的名词大都是抽象名词说明的名词大都是抽象名词;定语从句定语从句所修饰、限定的名词或代词有抽所修饰、限定的名词或代词有抽象的也有不抽象的。象的也有不抽象的。We express the hope that they will come to visit China again.（同位语从句同位语从句）Those who want to go please sign their names here.（定语从句定语从句）同位语从句同位语从句所说明的名词与从句没有逻所说明的名词与从句没有逻辑关系辑关系；定语从句定语从句所限定的名词是从句逻辑上的所限定的名词是从句逻辑上的主语、宾语、表语、定语、

9、状语等主语、宾语、表语、定语、状语等。The news that they won the match is true.（同位语从句同位语从句,news和从句没有逻辑关系和从句没有逻辑关系）The news that you told us yesterday is true.（定语从句定语从句,news是是told的逻辑宾语的逻辑宾语）The order when we should go back hasnt reached us.（同位语从句同位语从句,order和从句没有逻辑关和从句没有逻辑关系系）The day when New China was founded will neve

10、r be forgotten.（定语从句定语从句,day是是founded 的逻辑状语的逻辑状语）同位语从句同位语从句主要由连接词主要由连接词that引导引导,有时有时也可用也可用when,where,who,whether等引等引导导;定语从句定语从句由关系代词或关系副词引导。由关系代词或关系副词引导。Then he raised the question where they were to get the machine needed.Do you know the place where he was born?引导同位语从句的连词不可省略引导同位语从句的连词不可省略;引导定语从句的关

11、系代词作宾语时常引导定语从句的关系代词作宾语时常可省略。可省略。The news that he has been elected monitor of our class is true.The news（that）he told me is exciting.同位语从句与先行词一般可变成一个完同位语从句与先行词一般可变成一个完整句子整句子,谓语动词用谓语动词用be的不同形式的不同形式。He heard the news that their team had won.此句可以变为一个表语从句此句可以变为一个表语从句:The news was that their team had won.

12、练习练习1.Two fifths of all girls in America are on a diet./The fact worries their parents and teachers a lot.The fact that two fifths of all girls in America are on a diet worries their parents and teachers a lot.把下面两个句子连成一个含同位语从句把下面两个句子连成一个含同位语从句的复合句的复合句。2.The Queen of England was on a four-day visit

13、in China./We heard the news last night.We heard the news last night that the Queen of England was on a four-day visit in china.3.Teenagers shouldnt spend too much time online./Many Chinese parents hold the view.Many Chinese parents hold the view that teenagers shouldnt spend too much time online.4.T

14、ime travel is possible./We have no scientific proof for the idea.We have no scientific proof for the idea that time travel is possible.5.Students should be given more free time./The suggestion is welcomed by many people.The suggestion that students should be given more free time is welcomed by many

15、people.6.We dont think you two have met before.我们想你们两位以前没有见过面。我们想你们两位以前没有见过面。（宾语从句宾语从句）翻译句子翻译句子,并说明这个名词性从句的作用并说明这个名词性从句的作用。7.It is certain that John will do well in his exam.约翰肯定会考好。约翰肯定会考好。（主语从句主语从句）8.Whether they are coming or not dont matter too much.他们来不来无关紧要。他们来不来无关紧要。（主语从句主语从句）9.Now is when we need him most.现在是我们最需要他的时候。现在是我们最需要他的时候。（表语从句表语从句）10.I have no idea how she got through the forest.我