英语：Unit5Travellingabroad(Grammar-定语从句)课件(新人教选修7)

1、限定性定语从句Revising Attributive Clause (II)内容提要：1.定语从句Y限定性非限定性2 限定性定语从句与非限定性定语从句的区别3.非限定性定语从句几点说明限定性定语从句，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 doesn't leant from others can't achieve much.一个不向别人学习的人是不能有多少成就的。Aman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立，或者含义不清，甚至让

2、人感到莫名其妙。爪喂定性定语从句，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 i s 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。因此值得我们注意。非限定性定语从句几

3、点说明引导非限定性定语从句时,只能用which（不 用that）o例如：Heat is another form of energy which is as important as other kinds of energy.是另一种形疔备，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如：That Peter will marry Mice/which has not been announcedyetr has sma around.彳册/ 霜3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，

4、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 World War II，when Jews were badly treated in Germany.第二次世界大战期间，爱

5、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 stepmothe& whom he loved and respected as his own mother.他急于想去医院看望他的继母/也把他的继母当作亲生母亲一样热爱和尊敬。The American journalist (whom / who) the announcer mentioned in the news broadcast i

6、s said to have been kil led by the gangsters.播音员在新闻广播中提到的那位美国记者据说己经被匪徒杀害了。'贾亀書蠶能谭;IS爲鬻鷲蠶;口引导。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 刖刃如。心 Taiwan is an inseparable partof China.众所周知，台湾是中国不可分割的一部分。1 As B announced in

7、 toda/s papers, the Shanghai Export Commodities Fair is also open on Sun days 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 thatSth. is announced to 两种句型来进行表达,of course,2. She is always speaking highly of her role in the