课件33张PPT。名词从句名词从句含盖了主语从句、宾语从句、表语从句和同位语从句。连接这些从句与主句的关系词主要有三类:1.从属连词:that(无有词义) , whether(是否) ,if (是否)
2.连接代词:who(谁,主格) , whom(谁,宾格),whose谁的,所有格) , what(什么),which(哪个,哪些)
3.连接副词:when(什么时候) where(什么地方)why(为什么) , how(怎样)名词从句中的从属连词在从句里不担任任何成分,只起连接的作用;而关系代词和关系副词不仅仅是起连接的作用,而且还在从句里担任一定的成分;关系代词常在从句中担任主语、宾语或表语等成分;关系副词常在从句中担任状语。 另外,在使用上面的这些关系词时,有几个问题值得我们注意:首先,只能用whether而不能用if的情况.1)引导主语从句,例如:
Whether we'll make a loan for the project has not been decided (正确)
OR: It has not been decided whether we'll make a loan for the project . ( 正确)
If we'll make a loan for the project has not been decided .(错误)
OR: It has not been decided if we'll make a loan for the project . (错误)2)作介词的宾语, I have no idea about whether I can raise the money for
buying a car . (正确)
我不知道我是否能为买车筹措到资金。
I have no idea about if I can raise the money for buying
a car . (错误)3)后接不定式 He didn‘t know whether to go all himself first or wait for her here.(正确)
He didn't know if to go all himself or wait for her here . (错误)4)后接or not We wonder whether they'll come in time or not.(正确)
我们担心他们会不会准时到。
We wonder if they'll come in time or not . (错误)其次,what引导的名词从句表达的意思是"……所……的"。这个"所怎么的"定义根据"从句谓语的动作意义"而定。 I don't understand what you said.
What he needs is to practice more.
Money is what she is really after.
People have different ideas about what happiness means .最后,要了解 -ever = no matter ,用于表示强调,意为"无论……"。也就是说: whatever = no matter what(无论什么)
whoever = no matter who(无论谁)
whichever = no matter which(无论那个)
whenever =no matter when (无论何时)
wherever = no matter where(无论何地)
however = no matter how (无论怎样)A 主语从句Whether he'll come or not remains a question .
他是否会来依然是一个问题。
Whoever says that is not allowed .
无论谁这样说都是不允许的。
That she reads English aloud every morning helps her a lot in the improvement of her English study . 要点提示在使用主语从句中,有几个问题值得我们注意:1)尽管主从连词that在主语从句中没有任何意义,但一般不能省略。
That there is no elevator in the building is the critical inconvenience .
这幢楼里没有电梯是极大的不便之处。
It is necessary (that) he have his further study in college.(当主语从句在后面时,连词that可以省去)他在大学进一步深造是完全必要的。2)为了保持句子平衡或在正式文体中,常用先行It代替主语从句而将主语从句置于句末。It remains a question whether he'll come or not . 他是否会来,依然是一个问题。
It is not allowed whoever says that. 无论谁这样说都是不允许的。3)在It + be +形容词/ 名词 + that从句的结构中,由于某些形容词/ 名词的原因,that从句中的谓语动词要用虚拟式。这类形容词/名词常见的有:essential(绝对必要的), important(重要的),natural(自然的), necessary必要的), regretful(遗憾的),
strange(奇怪的), proper(适当的), urgent(紧急的)
duty(义务、责任), a pity (遗憾), no
wonder(难怪), a regret(遗憾)。例如:It is strange that he ( should ) say so . 他居然会这样说,真是奇怪。
It is a great pity that you ( should ) think so . 他居然会这样想,真是一件憾事。
It is natural that a bird ( should ) rest in trees . 鸟在树上安歇是很自然的。
It is a wonder that he should have passed the exam. 他这次考试居然会及格,真是个奇迹。4)以what引导的主语从句常用于句首表示强调。
What they need now is financial aid . 他们现在所需要的是经济援助。
What she thinks of me doesn't mean much to me . 她怎么样看我,对我来说无所谓。
What you have said hurt her a lot .你所说的话对她伤害很大。B 宾语从句
I believe that he will find a job in that publisher.
(作谓语动词的宾语)
我相信,他一定会在那家出版社找到工作。
He laughed at what they said .
(作介词的宾语)
她对他们说的话,一笑置之。要点提示
在使用宾语从句中,有几个问题值得我们注意:
1)宾语从句与主句的时态一致性问题这种一致性的要求,只有当主句的谓语动词用于"过去时区"的时候才存在。凡是在"过去时区"内的各种不同时态都在其中。另外,这种一致性只要求宾语从句的谓语动词也用于"过去时区"即可,至于用什么样具体的时态就要依从句的需要而定了。He had told me that he would join the club sometime .
他曾经告诉我说,他会在某个时候参加俱乐部的。
I remembered that I had met him somewhere .
我记得我曾在哪儿见过他。
She thought that she would have finished what she was doing by the end of the month . 她认为在那个月底她将完成她手头上做的事。2)if引导的宾语从句不能作介词的宾语,而只有用whether引导才行。这一点在上面刚刚讲过.(略)
3)某些动词后面,宾语从句的谓语要求用虚拟式。
这一点已在"虚拟语气"一章中讨论过了,本章只作简单的复习。 虚拟式的动词,常见的有:command(命令),
demand(要求), desire(希望), insist(坚持), order(命令), propose(提议), recommend(推荐), request(要求), require(要求), suggest(建议),等。例如:
He proposed that we ( should ) set a dead line for the complement of the
plan . 他提议拟定一个执行计划的期限。C 表语从句
在句子中担当表语的主谓结构称之为表语从句。它常位于句中联系动词或是起联系动词作用的动词之后.例如:
The problem is where we can hold our meeting .
问题是我们可以在哪儿举行会议。
It seems that everything goes smoothly .似乎一切都进行得很顺利。
The cause is that the temperature of water is lower that needed .
其原因是水的温度低于所需要的温度。
That is what he really wants .那就是他真想要的东西。D 同位语从句
同位语从句就是在句子中担当同位语的主谓结构.在使用同位语从句时要特别注意:尽管主从连词that在同位语从句中没有任何意义,但却不能省略。另外,同位语从句常用于下面这些名词的后面:fact(事实), fear(担心、害怕), belief(信念,意见), evidence(证据), hope(希望), idea(想法)news(新闻), doubt(怀疑), suggestion(建议), proposal(提议), order(命令), recommendation(推荐),等等。例如:
There is the news that an American delegation will arrive in Beijing tomorrow afternoon . 有消息说一个美国代表团将于明天下午抵达北京。Is there any proof that the food of the plant differs from that of animals ?
是否有任何证据可以说明植物性的食物不同于动物性的食物呢?
We all know the fact that organization helps memorization.
我们都知道这样一个事实:把要记忆的材料组织起来有助于记忆。
What do you think of his proposal that we ( should ) put on a play at the English evening ? 他建议我们在英语晚会上演一个剧,你觉得怎么样?四、专项考点练习
1. ________that they found an unusual plant in the forest.
A. It is said B. They are said
C. It said D. It says
2. _____ caused the accident is still a complete mystery.
A. What B. That C. How D. Where
3. It worried Mary a lot _____ she would pass the college entrance examination.
A. whether B. if C. that D. how 4. Shanghai has taken on a new look. It isn’t like _____ it used to be .
A .what B. how C. that D. which
5. ____ is no possibility ______ Bob will win the first prize in the match.
A. There, that B. It, that
C. There, whether D. It, whether
6. Little Tommy was reluctant to tell the schoolmaster ____ he had done the day before.
A .that B. how C .what D. where
7. The old man smiled when he saw how pretty _____ up to be during the past few years.
A. had his daughter grown B. would his daughter grow
C. his daughter would grow D. his daughter had grown
8. Have you seen Mary lately? My boss wants to know _______.
A. how she is getting along B. how is she getting along
C. what she is getting along
D. what is she getting along9. ____surprised me most was _____such a little girl of seven could play the violin so well.
A. That; what B. What; that
C. That; that D. What; what
10. These wild flowers are so special . I would do ______ I can to save them.
A. whatever B. which
C. that D. whichever
11. _____ helped to save the drowning girl is worth praising.
A. Who B. Anyone C. Whoever D. The person
12. Eat _____ you like and leave the others for _____ comes in late.
A. any; who B. every; whoever
C. whichever; whoever D. either; whoever
13. ____ she couldn’t understand was _____ fewer and fewer students showed interest in her lessons.
A. What; why B. That; why
C. What; because D. Why; that 14. It was ____ he said ___ disappointed me.
A. What; that B. That; that
C. What; what D. That; what
15. It was ordered that all the soldiers _______to the front.
A. should send B. must be sent
C. be sent D. must go
16. The true value of life is not in ______, but _______.
A. which we get; what give we
B. what we get; what we give
C. which do we get; what do we give
D. how we get; that we give
17. We are all for your proposal that the discussion _______.
A. be put off B. was put off
C. should put off D. is to be put off
18. Go and get your coat.It's ____ you left it.
A. where B. there
C. here where D. where there
19. Sarah hopes to become a friend of ______ shares her interests.
A. anyone B. whomever
C. whoever D. no matter who
20. You can’t imagine ______ when they received these nice Christmas presents.
A. how they were excited
B. how excited they were
C. how excited were they
D. they were how excitedThank you