(共24张PPT)
Review Of Object Clause
宾语从句的复习
宾语从句
考点1.宾语从句的引导词
考点2.宾语从句中的语序
考点3.宾语从句的时态变化
考点4.宾语从句的否定转移
考点5.宾语从句的简化
I know him .
2. I know who he is .
主语
谓语
宾语
(简单句)
主语
谓语
宾 语 从 句
连接词
从句主语
从句谓语
主 句
(复合句)
Do you know who is the first Chinese astronaut(宇航员)?
Our teacher told us that the earth goes around the sun.
Please tell me where she has gone.
I don’t know if he will come tonight.
Let’s find out what’s on tonight .
Find out the Object Clauses
We are proud of that Beijing is one of the biggest cities in the world .
宾语从句三要素:
引 导 词
时 态
语 序
由从属连词that引导的宾语从句
由从属连词 whether,if 引导的宾语从句
由连接代词 who, whom, whose,
which,what 和连接副词 where,
how, why, when引导的宾语从句
(一)引导词
陈述句变成宾语从句
1. He will be back in an hour. I hear.
I hear _______ he will be back in an hour.
(that)
注:由陈述句变成宾语从句时,由连词that引导,因为that在从句中不作任何成分,也没有任何具体意思,因此在口语或非正式文体中常省略。
一般疑问句变成宾语从句
Do you often come here to read newspaper? She asked.
She asked___________I often came here to read newspaper.
2. Will they go to visit the Great Wall? He asked.
He asked ___________ they would go to visit the Great Wall.
whether (if)
由从属连词whether, if 引导的宾语从句
whether (if)
注:由一般疑问句变成宾语从句时,由连词whether或if引导,if/whether翻译成:“是否”,常用在ask, wonder, can / could you tell me 等后。具有一定的意义,所以不能省略。
(1)在动词不定式之前只能用 whether。
例句:I can’t decide whether to stay.
我不能决定是否留下。
(2) whether 后可直接接 or not,而 if 不可以。
例句:I want to know whether or not it’s good news.
我想知道是否是好消息。
(3) 在介词后,只能用 whether。
例句:His father is worried about whether he will lose his work.他的父亲担心是否会失去工作。
只能用whether不能用if的情况
(4) 从句在句首时用Whether。如:
Whether you like it, I don’t mind. 你是否喜欢, 我不介意。
(5) 用 if 会引起歧义时,只用 whether。
注意:Could you tell me if you know the answer?
这句话有两种意思:“你能告诉我是否知道答案吗?”或“如果你知道答案,可以告诉我吗?” 如用 whether 可避免歧义。
(6) 如果主句已有一个if引导的条件句,为了避免产生混淆,应使用whether。如: He asked me whether, if there was enough time, I wanted to go to his office.
他问我如有足够的时间是否想去他的办公室。
只能用whether不能用if的情况
由连接代词who, whom, whose, which, what及连接副词 when, where, how, why引导的宾语从句。
特殊疑问句变成宾语从句
1. Where do you live? He asked.
He asked _______ I lived.
2. How can they get to the post-office? He asked.
He asked ______ they could get to the post-office.
where
注:由特殊疑问句变成宾语从句时,仍用原来的疑问词,即由连接代词(what, who …)或连接副词(when, where…)引导,并在从句中担任句子成分,具有一定的意义,不可省略。
how
Choose the right answers
1.—Can you tell me ____________to London?
—Sure.Next month.
A.when you will travel B.when will you travel
C.when you travelled D.when did you travel
2.We’re not sure if it________tomorrow.If it ___________we won’t go hiking.
A.will rain;rains B.will rain;will rain
C.rains;rains D.rains;will rain
3.—Which dress do you like best,Madam?
—Sorry,I can’t decide___________ now.
A.to buy which one B.buy which one
C.which one to buy D.which I should buy it
A
A
C
宾语从句的语序用陈述句语序
(从句部分:连接词+(主语)+谓语+其他成分)
(二) 语序
How can I get to the station? (疑问句)
Could you tell me how I can get to the station?
1.--Could you tell me how long __ the book?
--Three days.
A. I can keep B. can I borrow
C. I can borrow D. can I keep
2. I want to know ___ yesterday?
A. why did you come late B. why you came late
C. why do you come late. D. why you come late
3.--Could you tell me __ tomorrow morning?
--Well, it will start at 9:00.
A. when the meeting will start
B. where will the meeting start
C. where the meeting start
D. when will the meeting start
Choose the right answers
A
B
A
1. When will he go to the library?
His brother asks when he will go to the library .
His brother asks when will he go to the library .
2. What did he want to buy ?
I don’t know what did he want to buy .
I don’t know what he wanted to buy .
主句+连接词+从句(主+谓+其他成分)
3. Does he know French ?
We want to know if/whether he knows French .
We want to know if/whether does he know French.
What’s wrong? What’s the matter?
What’s happening? What happened?
语序不变的情况
Can you tell me who teaches you PE?
Can you tell me who is over there?
I don’t know who has a dictionary?
做主语
1)当从句的原句为以下句子
2)当疑问词是宾语从句的主语
eg: I don’t know what’s the matter.
Do you know what’s happening?
(三) 时态
当主句是一般现在时时,宾语从句可根据实际情况而使用相应的时态。
(主现,从不限)
I hear that she has written three letters to the headmaster.
Mr Green says that the snow was very heavy last month.
Do you know who he was talking with at eight last Sunday?
2.当主句是过去时态时,宾语从句也要用过去的某种时态。(过去将来时,一般过去时,过去进行时,,过去完成时)
(主过,从四过)
He asked what time it was.
He told me that he was preparing for the sports meet.
He asked if you had written to Peter.
He said that he would go back to the U.S. soon.
3.当宾语从句说明的是客观真理、客观事实、自然现象、名言时 ,就不用受到主句时态的限制,仍是用一般现在时态。
She said the sun rises in the east.
Our teacher said that January is the first month of the year.
Scientists have proved that the earth turns around the sun.
经典题型
1. Peter said that he ______ the way to the chemist’s shop.
A. does not know B. did not know
C. do not know D. did not knew
2. He said that he ______ the next day .
A. will set off B. set
C. would set off D. won’t set off
3. The teacher told us that the earth _______ round.
A. is B. was C. were D. be
B
C
A
Find out the mistakes and correct.
1. Could you tell me where do they live?
2. She knew that Danny is a student.
3. He told me that winter was colder than autumn.
4. Do you know who car it is?
was
is
whose
宾语从句的否定转移
当主句的主语为第一人称且谓语动词是think /believe /suppose /guess等,宾语从句表否定意义时,需将否定词提前到主句中。
I don’t believe he will come.
I don’t think she is a good student.
I don ’t believe that he will succeed.
宾语从句的简化
当宾语从句的主语和主句的主语相同,宾语从句
是以疑问代词或疑问副词如when,where,who,
why,which,what等引导时,且主句的谓语动词是
know, remember, forget, learn, ask, tell, show, teach
等时,从句可简化为“疑问词+不定式结构”。如:
She doesn ’t know when she should go there.
=She doesn ’t know when to go there.
I don’t know what I shall do next.
=I don’t know what to do next.
John didn’t decide which shirt he would buy.
= John didn’t decide which shirt to buy.
宾语从句三要素
that(陈述句 )
if/whether(一般疑问句 )
特殊疑问词(特殊疑问句)
主句为一般现在时从句可为任何时态
语序
宾语从句的语序都为陈述句语序
客观真理 自然现象
公式定理 名言警句 一般现在时
Summary