英语：UNIT 5 TRAVELLING ABROAD-GRAMMAR-定语从句课件（新人教版选修7）.ppt

1、Revising Attributive Clause（）定语从句复习（二）内容提要：定语从句 限定性定语从句与非限定性定语从句的区别 非限定性定语从句几点说明限定性非限定性限定性非限定性限定性非限定性限定性非限定性限定性定语从句限定性定语从句,顾名思义,是对先行词从本质或特征上进行限制的一种定语从句，它所修饰的词代表一个(些)或一类特定的人或事、物。例如:A man who doesnt learn from others cant achieve much.一个不向别人学习的人是不能有多少成就的。A man 被限定后,指一类特定的人.这类定语从句是不能去掉的,否则剩下的部分就失去意义不能成

2、立,或者含义不清,甚至让人感到莫名其妙。非限定性定语从句 非限定性定语从句,它只对所修饰的词作进一步的说明,去掉之后并不影响句子的整个含义。在形式上,非限定性定语从句与主句之间通常用逗号隔开。Finally we visited to the Giant Yangtze Gorges Dam,which is the greatest key water control project in the world at present.最后我们参观了长江三峡大坝,它是目前世界上最大的水利枢纽工程。本句若去掉从句,主句部分的含义仍然完整。历年的高考中,非限定性定语从句都是出现频率最高的考点之一。因

3、此值得我们注意。非限定性定语从句几点说明 引导非限定性定语从句时,只能用which(不用that)。例如:Heat is another form of energy,which is as important as other kinds of energy.热是另一种形式的能量,与其他形式的能量一样重要。从句表补充说明,而且关系代词which不能换成 that 引导非限定性定语从句的which可以指代前面的先行词,也可以指前面整个句子的含义。例如:That Peter will marry Alice,which has not been announced yet,has spread

4、around.彼特要娶爱丽斯这件事还没宣布,却已传得沸沸扬扬。句子中的which指彼特要娶爱丽斯这整个句子的意思 除which外,还可用when,where,who等关系代、副词引导非限定性定语从句。例如:After graduation,I decided to stay in Chongqing,where I spent my childhood and four years of college life.毕业后,我决定留在重庆,在那里我曾度过了我的童年和四年大学生活。Albert Einstein left Germany for the United States during W

5、orld War II,whenJews were badly treated in Germany.第二次世界大战期间,爱因斯坦离开德国去了美国,那时犹太人在德国受到不好的对待。在限定性定语从句中作宾语时,引导词可以省略,但引导非限定性定语从句的关联词不能省。试比较:He was eager to go to the hospital to see his stepmother,whom he loved and respected as his own mother.他急于想去医院看望他的继母,他把他的继母当作亲生母亲一样热爱和尊敬。The American journalist(whom

6、/who)the announcer mentioned in the news broadcast is said to have been killed by the gangsters.播音员在新闻广播中提到的那位美国记者据说已经被匪徒杀害了。表示正如的含义时,通常用as引导非限定性定语从句,也可用which引导;但置于句首时,只能用as引导。China has basically succeeded in defeating SARS,which/aswe have expected.正如我们所预料的那样,中国已基本上战胜了“非典”。As is well known to everyb

7、ody,Taiwan is an inseparable part of China.众所周知,台湾是中国不可分割的一部分。例题解析1.As announced in todays papers,the Shanghai Export Commodities Fair is also open on Sundays.A being B is C to be D been注意两个非限定性定语从句的引导词：as,which,which在做非限定性定语从句引导词时有两个特点：1 which前要有逗号与前面句子分开；2 which引导非限定性定语从句指的是前面整句话的内容。只要引导非限定性定语从句 as 和 which 都指一句话内容，区别在于which只能放在它所指那句话的后面，而as可以在前面也可以在后面。1.可以用:It is announced that-Sth.is announced to-两种句型来进行表达B2.She is always speaking highly of her role in the play,_,of course,make the others unhappy.A.what B.for that C.that D.whichWhich 在此处引导非限定性定语从句，注意分析句法成分，不要受逗号干扰