1、noun clauses it was predicted as early as the 1700s that english would one day be the global language. , the chances that we will all have the opportunity to live in an english-speaking country are small. what this means is that they make sure there is an adequate amount of input in english experts

2、say that just 15 minutes of extra-curricula study a day can really accelerate foreign language learning.the first one is a subject clause. (主語從句主語從句)the second one is an appositive clause. (同位語從句同位語從句)the third one is a predicative clause. (表語從句表語從句)the fourth one is an object clause. (賓語從句賓語從句)名詞性從

3、句包括名詞性從句包括: 主語從句、賓語從句、主語從句、賓語從句、表語從句、同位語從句表語從句、同位語從句, 多由連詞多由連詞that, wh-疑問詞或由疑問詞或由whatever等關系代詞引等關系代詞引導導, 其中同位語從句最常見。其中同位語從句最常見。主語從句在句子中充當主語主語從句在句子中充當主語, 句子的謂句子的謂語動詞用第三人稱單數。語動詞用第三人稱單數。why he refused to work with you is still a mystery.whoever comes is welcome.that he is still alive is surprising. who

4、 will win the match is still unknown.主語從句主語從句what he wants to tell us is not clear.where the party will be held has not yet been announced.whoever breaks the rules will be punished.that he became a lawyer may have been due to his mothers influence.it is not true that he has moved to new york. 主語從句前的

5、主語從句前的that不能省略不能省略, 僅起連接僅起連接作用作用, 有時為了保持句子平衡有時為了保持句子平衡, that從句從句后置后置, 而由而由it作形式主語。作形式主語。其他類似句型還有：其他類似句型還有：it + be +important/ necessary/ obvious + that從句從句it + be +reported/believed/thought/has been decided + that從句從句it + be +a pity/a shame/a fact/a surprise/ common knowledge+ that從句從句it +happens/oc

6、curs/seems/appears + that 從句從句 賓語從句在句子中充當賓語賓語從句在句子中充當賓語, 從從句用陳述句語序句用陳述句語序, 一般放在及物動詞一般放在及物動詞或介詞之后。或介詞之后。e.g. i dont know where the sound came from. dont be satisfied with what you have achieved.賓語從句賓語從句he has told me (that) he will go to shanghai tomorrow. he told me (that) he was ill and that he cou

7、ldnt come. command, order, suggest, advise, insist, desire, demand, beg, require, request等動詞如果后面加上賓語從句的等動詞如果后面加上賓語從句的話話, 從句謂語部分必須用從句謂語部分必須用should do。 e.g. i insist that she (should) do her work alone. the commander ordered that troops (should) set off at once. it +從句從句介詞介詞+ it +從句從句it +adj. +從句從句it

8、+ 介詞短語介詞短語 +從句從句it+ n.+從句從句it +過去分詞過去分詞+從句從句it 形式賓語形式賓語主語主語+謂語謂語e.g. i hate it when people speak with their mouths full. ill see to (保證保證) it that everything is ready in time. he made it clear that he would leave office soon. we must bear it in mind that we are chinese.we thought it a pity that he f

9、ailed again.i heard it said that he had gone home. 當從句放在系動詞當從句放在系動詞be, look, remain, seem等后即構成表語從句。等后即構成表語從句。 其基本結構為其基本結構為: 主語主語 + 系動詞系動詞 + that從句。從句。e.g. the trouble is that i have lost his address. it seemed that the night would never end. 表語從句表語從句the fact is that we have lost the game.thats just

10、what i want.this is where our problem lies. that is why he didnt come to the meeting. it looks as if it is going to rain. 同位語從句同位語從句 同位語從句是對與之同位的名詞中同位語從句是對與之同位的名詞中心詞作進一步解釋心詞作進一步解釋, 能接同位語從句的能接同位語從句的常見名詞有常見名詞有: idea, fact, news, belief, hope, evidence, opinion, problem, truth, answer, proposal, theory

11、, decision, discovery, problem, thought, understanding等。等。e.g. the news that we won the game is exciting. i have no idea when he will come back home. word came to him that mary had probably fallen ill. they are investigating the question whether the man is trustworthy.the fact that we talked about i

12、s very important. (定語從句定語從句)the fact that he succeeded in the experiment pleased everybody. (同位語從句同位語從句) whether與與if在名詞性從句中的用法區別在名詞性從句中的用法區別 if 一般只用于引導賓語從句，而一般只用于引導賓語從句，而whether可可引導包括賓語從句在內的其他名詞性從句。引導包括賓語從句在內的其他名詞性從句。 連詞連詞whether引導主語從句、表語從句引導主語從句、表語從句時不能用時不能用if來替換。來替換。e.g. whether he will attend the

13、 meeting is uncertain. the question is whether he will come.賓語從句中賓語從句中, whether常與常與or not搭配搭配, 可可以說以說whether or not, 而不說而不說if or not。e.g. i dont care whether or not she will attend the meeting.whether可用在介詞后可用在介詞后, 或帶或帶to不定式前不定式前, if則不可。則不可。 e.g. she doesnt know whether to get married now or wait. i

14、havent settled the question of whether ill go back home.某些動詞后面某些動詞后面 (如如discuss) 只能用只能用whether, 不用不用if。e.g. we discussed whether we should go on climbing. rewrite the following sentences using noun clauses.1. people can make videos with their mobile phones by 2015. it is amazing that people can make

15、 videos with their mobile phones by 2015.2. most human beings will live until they are 200 by the 25th century. it is predicted that most human beings will live until they are 200 by the 25th century.3. personal computers will disappear by 2020. the idea that personal computers will disappear by 202

16、0 sounds unbelievable to many people.4. satellites will be destroyed by the sun in the next five years. nobody can prove that satellites will be destroyed by the sun in the next five years.5. aliens from four different planets will arrive on earth in the next 20 years. it is totally nonsense that al

17、iens from four different planets will arrive on earth in the next 20 years.6. we wont use money to buy food in the future. many people believe that we wont use money to buy food in the future.1. it now appears _ they are in need of help. a. that b. which c. what d. how2. it is good news _ they will

18、arrive in a few days. a. which b. what c. that d. howexercises3. it _ joe drives badly. a. thought that b. thinks that c. is thought that d. is thought that4. my advice is that he _ regular house. a. keep b. would keep c. keeps d. kept5. _ knows the truth will tell you about it. a. who that b. whoev

19、er c. whom that d. that who6. this is _ she was born. a. where b. which c. that d. what7. the question is _ we cant go there today. a. that b. what c. which d. when8. the question is _ it is worth doing. a. if b. whether c. which d. what9. the reason is _ he has never wasted his time. a. because b.

20、why c. that d. what10. his proposal is that the dam _ at the foot of the mountain. a. build b. will build c. be built d. will be built1. we should respect food and think about the people who dont have _ we have here and treat food nicely. (10福建福建) a. that b. which c. what d. whether 答案：答案：c 考點：賓語從句考

21、點：賓語從句 解析：空格在句中充當賓語解析：空格在句中充當賓語2. cindy shut the door heavily and burst into tears. no one in the office knew _ she was so angry. (2010湖南湖南) a. where b. whether c. that d. why答案：答案： d 考點：考查名詞性從句考點：考查名詞性從句 解析：該空引導賓語從句，根據句意解析：該空引導賓語從句，根據句意“辦辦公室中沒人知道她為什么如此生氣公室中沒人知道她為什么如此生氣”可判可判斷選斷選d項。項。3. as a new student, he doesnt know _ it takes to start a business here. (10天津天津) a. how b. what c. when d. which答案：答案：b 考點：考查名詞性從句考點：考查名詞性從句 解析：空格后的從句中解析：空格后的從句中takes是動詞，其是動詞，其后