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1、名词性从句的六大误区名词性从句的六大误区 误区一：误区一： that 与与 what 的混用的混用1. That they are going to discuss at the meeting is how to increase food supply in the world.(错误)What they are going to discuss at the meeting is how to increase food supply in the world. (正确) 注注：that 在引导名词性从句时本身没有意义，也不在从句中充当任何成分；而 what 则 表示“什么”“的东西或事
2、情”，在从句中充当主语，宾语或表语等。上句中的 what 应充当 discuss 的宾语。 误区二：误区二：if 与与 whether 的混用的混用 2. If we will visit the Great Wall tomorrow has not been decided yet. (错误)Whether we will visit the Great Wall tomorrow has not been decided yet. （正确） 注注：if 与 whether 引导宾语从句时往往可换，但在下面情况时常使用 whether：作介 词的宾语时，见例；在从句中提出两种选择时，见例；
3、从句提前时，见例；引导 主语从句，表语从句及同位语从句时，见例。I worry about whether I hurt his feelings. She wasnt sure whether she should laugh or cry. Whether he will come or not I dont quite know. What many people are worried about is whether we will be able to build a better future. We have some doubt whether they can comple
4、te the task on time. 误区三：误区三：that 与与 because 的混用的混用3. The reason why he was late for school was because he got up late. (错 误) The reason why he was late for school was that he got up late. (正确)Why farmland here is being lost is because farmers have cut down too many trees in recent years.(错误)Why far
5、mland here is being lost is because farmers have cut down too many trees in recent years. (正确) 注注：reason 作主语时引导的表语从句或 why 引导的名词性从句时常用 that 不用because. 误区四：忽略连词误区四：忽略连词 that4. These old languages are now threatened and may disappear is a serious matter to the people in Britain. (错误)That these old lang
6、uages are now threatened and may disappear is a serious matter to the people in Britain. (正确) 注注：that 在引导宾语从句时常常可省，但在下面情况时不可省去：宾语从句不止一个时， 见例；宾语从句与主句之间有插入语时，见例；宾语从句为一个主从复合句时，见 例；引导主语从句，表语从句或同位语从句时，见例。They complain (that) they have to work from morning till night, that it is hard to earn money, that t
7、hey are bullied (欺负) by the policemen, or that the corporation leaders are seated lazily and enjoy the fruits of otherswork. The teacher said, pleasantly and firmly , that we must overcome the difficulties. We believe that if we work harder, I will pass the National College Entrance Examination. The
8、 trouble is that she has lost his address. (表语从句)Word came that China launched its first manned spaceship on Oct.15,2003. （同位语从句） 误区五：误区五：no matter whowhatwhichhowwhere与与whoeverwhateverwhicheverhoweverwherever 5. No matter who breaks the rules will be punished. (错误) Whoever breaks the rules will be
9、punished. (正确) 注注：whoever,whatever,whichever,however,wherever 等连词可以引导名词性从 句也可引导让步状语从句，而 no matter whowhatwhichhowwhere只能引导 让步状语从句。例如，No matter how great the difficulty is, we ought to keep on. Or: However great the difficulty is, we ought to keep on . 误区六：相似句型的混淆误区六：相似句型的混淆 6As is known to all that
10、science plays an important part in the development of industry and agriculture. (错误)As is known to all, science plays an important part in the development of industry and agriculture. ( 正确)It is known to all that science plays an important part in the development of industry and agriculture. (正确) 注：
11、注：as 作为关系代词引导的非限制性定语从句位于主句之前时，从句与主句之间要用逗 号隔开。It 作为形式主语将 that 引导的主语从句后置时，that 常常不能省。 巩固与练习巩固与练习1. It is said that the famous football star is now willing to play for _could pay him three million dollars a year.A. anyone B. whomever C. no matter who D. whoever 2. _hard he tried, he still failed to car
12、ry out the plan.A. However B. How C. No matter D. Though very 3. _all the inventions have in common is _ they have succeeded. A. What , what B. That , that C. What , that D. That ,what 4. _she will be given this job is still under discussion. A. Whether B. What C. If D. That 5._is known to us all, _
13、life in the modern world is easier in some ways than the life our grandparents lived. A. As , 不填 B. Which , 不填 C. As , a D. Which , the6. It depends on _ its going to rain. A. if B. whether C. that D. 不填 7_shes just said is the very idea_I want to express.A. What ,that B. That , what C. What ,which
14、D. That , which 8. Why we decided to put off the meeting is _ we had some difficulty in preparing it. A. because B. that C. 不填 D. why9. The reason why he failed in the exam was _ he was too careless. A. why B . because C. 不填 D. that 10. What he needs _enough time and what I need _enough books. A. is
15、 , are B. is , is C. is , are D. are , are Key: 1-5 DACAA 6-10 BABDC名词性从句 1、_ he referred to in his article was unknown to the general reader.（07 上海 39 题）A. ThatB. WhatC. Whether D. Where 2 The traditional view is _ we sleep because our brain is “programmed” to make us do so. （07 上海 40 题）A. when B. why C. whether D. that3、As his best friend. I can make accurate guesses about _ he will do or think. （08 上海 34 题） A. what B. which C. whom D. that、 4、It has been proved _ eating vegetables in childhood helps to protect you again
