名词性从句精讲课件

分析下列宾语从句中的连词 1. I don’t doubt （that ）you will succeed. 2. I don’t know whether/if he will come tonight.
3. I doubt if /whether you will keep your promise.
一、名词性从句的语序
“It” is used as empty subject
形式 主语
为避免主语冗长,句子头重脚轻,经常用it作 形式主语,主语从句放在后面作真正的主语. 1.It is certain that he will succeed.
2.It is not known whether he will go there.
the old man
The fact that Polly didn’t ask for the man’s name is a pity.
Appositive Clause
Subject Clause (主语从句)
1 That he will succeed is certain .
2 Whether he will go there is not known . 3 What he said is not true . 4 Where he hid the money is to be found out . 5 Whoever comes is welcome. 6 How we can help the twins will be discussed at the meeting. 7 When they’ll start the project has not been decided yet.
3.Teenagers should not spend too much time online./ Many British parents hold the view. _______ Many British parents hold the view that teenagers shouldn’t spend too much time online. 4.Time travel is possible./ There is no scientific proof for ____________________ the idea. ________
表语从句:在句中充当表语成分，一般放在连系动词
之后. 作用：对主语进行解释说明。
that / whether /as if /as though（ if 不引导 表语从句)
who / whom / whose / which / what
when / where / why / how / because
Leabharlann Baidu
I don’t know whether I will stay or not
介词后面的宾语从句不能用if. I worry about whether I hurt her feeling.
在主+谓+it(形式宾语)+宾补+that从句(真正 宾语) 的句型中不省略
We must make it clear that we mean what we say. 由连词and连接的两个由that引导 的宾语从句中,第二个that 不省略.
I don’t like his job.
1.______ the baby could speak made his parents very happy. 主语从句 A. That B. What C. Why D. If 2. I wonder ____ you will go shopping or stay at home. A. that B. if C. whether D. what 宾语从句 3. This is _____ he was often late for school. A. what B. that C. why D. whether 表语从句 4. We all know the truth ____ the earth ____ around the sun. 同位语从句
This is his job.
His job is important.
{I don’t like what he does every day. {
I don’t know about the man, Mr. White. I don’t know about the fact that he is a teacher.
It seems/appears/happens that…显然、明显、 碰巧..
It’s been announced/declared that… 已经通知/宣布… It’s no wonder that…并不奇怪/无疑… It’s a pity/a fact /a common knowledge (众所周知） / a common saying（俗话说）that…
1) The idea that computers can recognize
human voices surprises many people . 2) Word came that Napoleon himself was coming to inspect(视察) them . 3) Sydney kept his promise that he would always do anything he could for Lucie to make sure of her happiness.
同位语从句在句中充当同位语成分，其一般跟在一些抽 象名词（ idea ；belief ； fact ； truth ；problem ； news 等）后面，对名词作进一步解释说明.
同位语从句常用 that 引导或用连接副词when / where/why / how / whether
1.Two thirds of all girls in Britain are on a diet./ The fact ________________________________________ _______ worries their parents and teachers a lot. ______
3个句子中的连词that, whether, if （是否）在名词性 从句中只起连接作用，在句中不担任成分,被称为连接词
注意：A. that 本身无意义，在宾语从句中可以省略，
但在别的三种名词性从句中不可以省略。 B. whether 和if有是否的意义，在宾语从句中二者通常可以互换。但 whether 可以用于所有的四种名词性从句，而if 仅可以 用于宾语从句。
There is no scientific proof for the idea that time travel is possible.
5.Chinese students should be given more free time./ __________________________________________ The suggestion is welcomed by many people, especially ____________ kids in school. The suggestion that Chinese students should be given more free time is welcomed by many people, especially kids in school.
宾语从句在句中充当宾语成分（ 可以作谓语动词、介
词、不定式等非谓语动词的宾语）
that, whether，if （ that 常可省略） who, what, which, whoever, whatever, when where why how
1.Whether和if都可以引导宾语从句 当whether后紧跟or/or not时,不用if.
在复合句中起名词作用的从句叫名词从句 (Noun Clauses）。名词从句的功能相当于 名词词组, 它在复合句中能担任主语、宾语、 表语、同位语、介词宾语等，因此根据它在 句中不同的语法功能，名词从句又可分别称为 主语从句、宾语从句、表语从句和同位语从句。
{What he does is important. {This is what he does every day.
The fact that two thirds of all girls are on a diet worries their parents and teachers a lot. 2.The Queen of England was on a three-day visit in ______________________________________________ China./ the news ______ We heard _________ last night. We heard the news last night that the Queen of England was on a three-day visit in China.
He told me（ that） he would come and that he would come on time.
The question is whether we can rely on him. That’s because we were in need of money at that time . He looked as if he was going to cry . That’s why I was late .
A. if; moved B. that; moves C. why; move D. whether; move
Find clauses from the following sentences and tell the functions of them At lunch time, the radio weatherman reported that the mist would become a thick fog in the Object Clause afternoon.
Tell the function of the following clauses
They know that the habit will kill them. It all depends on whether they will support us . He asked how much I paid for the violin. He made it clear to the public that he did an important and necessary job . I find it necessary that we should do the homework.
3.It has not been decided yet when they’ll start the project.
It’s likely/possible/important/necessary/clear that…
很可能/重要的是…/必要的是…/很清楚…
It’s said/ reported that…据说/据报道…
(宾语从句)
The truth is that the fog is too thick for the bus to run that far. Predictive What surprised me couldn’t see anything.
Clause most(表语从句) was that