(共33张PPT)
Object Clauses
宾语从句
一.教学任务 复习宾语从句
二.教学重点
1.宾语从句的概念
2.宾语从句的引导词/连接词
3.宾语从句中的语序
4.宾语从句的时态变化
教学难点
1. if与whether的区别
2.宾语从句与简单句的互换
问题一: 什么是宾语
宾语表示及物动词的动作对象和介词所联系
的对象,常由名词或相当与名词的词担任,置
于及物动词或介词(动词词组)后。
I like my teacher. (名词作宾语)
I know him. (代词作宾语)
I enjoy playing basketball.(动名词作宾语)
I decide to study hard.(不定式作宾语).
We know him.
We know he likes English.
主s
主s
谓v
谓v
宾o
宾o
在主从复合句中作宾语的句子叫宾语从句。
主s
谓v
宾o
简单句
复合句
试比较
问题二: 什么是宾语从句
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 .
二、宾语从句三要素
连 接 词
时态呼应
陈述语序
that
if/whether
特殊疑问词
连接词+主语+谓语+其他
(that )+ 陈述句
He thinks, “ Lucy likes school.”
He thinks (that)Lucy likes school.
2. if/whether + 一般疑问句改写的陈述句
He asked,“Was Lucy late again ”
He asked if Lucy was late again.
3.特殊疑问词 + 特殊疑问句改写的陈述句子
He asks me, “When will Lucy come ”
He asks me when Lucy will come.
连接词that引导的宾语从句
that在句中无词汇意义,在从句中不能
充当成分,在口语和非正式文体中常
省略。
我听说他一小时后回来。
I hear (that) he will be back in an hour.
他说他非常想念我们。
He said (that) he missed us very much.
连接词if, whether引导的宾语从句
whether, if 有“是否”的含义,在从句
也不充当成分。
老师问我们是否准备好了期末考试。
The teacher asked us __________ we were ready for the final exam.
if / whether
连接代词和连接副词引导的宾语从句
连接代词what, which, who等在从句中可充当主语,表语,宾语等;
连接副词when, where, how等在从句中可充当状语。
Can you tell me _ he is.
2. Could you tell me ___ I can get to the station.
3. Please tell me we will have a meeting.
where
how
when
that
1.当陈述句充当宾语时,由 ____ 连接
练一练
1. This is a book.----- I know
2. You like singing.-----She says
3. He worked last night.--- I know
4. They will go home.---Tell Lucy
主句
(2) Does Kate get up early Do you know
Do you know if /whether Kate gets up early
(1) Is Jim a good student I don’t know.
I don’t know if /whether Jim is a good student.
2当一般疑问句充当宾语,由________ 连接
if/whether
练一练
1. Is he reading
1)Was she late yesterday
2. Does Tom work hard
2) Did you watch TV
3. Will they read books
3) Can you sing
用以下开头与下列句子连成宾语从句:
1.Do you know …
2.I want to know …
if/whether
注意:只能用whether不用if 的三种情况
一般情况下,if 和whether可以互换,但以下 情况只能用whether:
1. 与or not连用:
He asked me whether or not I was coming.
2. 在介词之后:
It depends on whether it is going to rain.
3. 在不定式之前:
We haven’t decided whether to go there.
4.作主语只能用whether
Whether he will come is not decided.
3.当特殊疑问句充当宾语时,由 ________ 连接.
Eg:
1.What is she doing Can you tell me
Can you tell me what she is doing
2.Where does she live Do you know
Do you know where she lives
特殊疑问词
练一练
When does he get up
How did he go to work
Who will Tom play with
用以下开头与下列句子连成宾语从句:
1.Do you know …
2.I want to know …
3. Can you tell me …
Helen says that she will learn French next year.
Do you know where he comes from
He asked me if I could get to the bus station on time.
三. 宾语从句的语序---陈述语序
无论主句是陈述句还是疑问句,宾语从句都是运用陈述句的语序,即是“主语在前,谓语在后”的顺序。
四.宾语从句的时态变化
I hear (that)
Jim ( be ) a worker two years ago.
Jim ( be ) an English teacher now .
Jim ( cook ) dinner tomorrow .
Jim ( sing )a popular song now.
Jim ( be ) to the Great Wall twice . Jim ( play ) basketball when his father came back.
Jim ( learn )1000 Chinese words by the end of last semester.
填一填
was
is
will cook
is singing
has been
was playing
had learned
1.当主句是一般现在时,宾语从句的时态不作限制,我们可以根据句子的需要使用任何一种时态。
(需要性原则)
2.当主句是一般过去时的时候,宾语从句必须运用相应的过去的某一种时态,从而达到主句和从句的相互一致。(呼应性原则)
1) He will go to Hong Kong .
2) He is sick.
3) He is reading a book .
4) He has finished his work.
1) He to Hong Kong .
2) He sick.
3) He a book .
4) He his work.
He said
辨一辨
would go
was
was reading
had finished
确定从句的时态(根据主句时态)
work
主句时态
从 句 时 态
连 接 前
连 接 后
一般现在时
时态由从句决定
一般过去时
一般现在时work
一般过去时worked
一般过去时 worked
过去完成时had worked
一般将来时will work
过去将来时would work
现在进行时is working
过去进行时was working
现在完成时have worked
过去完成时had worked
3.当宾语从句说明的是客观存在的真理时,就不用受到主句时态的限制,仍是用一般现在时态。(特殊性原则)
He told me (that)
Summer is after Spring .
I was told (that)
the sun is much bigger than the moon.
My parents told me (that)
no news is good news.
比一比
宾语从句的否定转移:
当主句谓语动词是think(认为)suppose(料想)guess(猜想)believe(相信)等,主句的主语是第一人称,且时态为一般现在时时,从句的否定一定要转移到主句上来。例如:
I don’t think that he is right.
比一比
I don’t know where I should go.
I don’t know where to go.
Tell me how I can do it.
Tell me how to do it.
你有什么发现?
结论:由连接代词和连接副词引导的宾语从句
←→疑问词 + to do 的简单句。
五.宾语从句与简单句的转换
①
②
She said that she ___ (be) right.
She said that she ____ (will) fly to
America in a week.
3.The teacher said that the moon_____
(move) around the sun.
4.She said that she _________ (finish)
her homework already.
5.I wonder where they _________ (go)
tomorrow.
was
would
moves
had finished
will go
主句
从句
一般将来时态
一般现在时态
祈使句
含有情态动词
Do you know if ______back next week If he ______ back , please let me know .
A. he comes , will come B. will he come , comes
C. he will come , comes D. he will come , will come
4. 连词 if 和 when 在不同从句中的区别:
C
I don’t know when he _________ (come) . I can’t wait here any more . When he _______ (come) , would you please ask him to call me
will come
comes
练一练
1.I don’t know what I shall do next .(变为简单句
→ I don’t know ____________next .
2.John didn’t decide which book he would buy .(变为简单句)
→ John didn’t decide_____________ .
3.Can you tell me how to get to the bus stop (变为复合句)
→ Can you tell me ____________ the bus stop
4.Please tell Lucy how to use the MP5 .(变为复合句)
→Can you tell Lucy_____________ the MP5.
What to do
which book to buy
how I can get to
how she can use
1.Could you tell me we get to the place
A.how B.whether C.where D.what
2.The teacher says she will leave a message on the headmaster’s desk.
A.if B.who C.that D.what
3.I am not sure ____ he will come tomorrow.
A. that B. if C. what D. who
4.---Do you remember ___ he came
---Yes, I do. He came by car.
A. how B. when C. that D. if
A
C
解题指导一:判断语义,选择连接词
Exercises:
B
A
5.Do you know how much hot water
A.Mum is needed B.does Mum need
C.Mum needs D.did Mum need
6.Can you tell me
A.where he is B.where is he
C.he is where D.what is he
7.I want to know how long .
A.has he been back B.has he come back
C.he has been back D.he has come back
C
A
C
解题指导二:陈述语序:连接词+主语+谓语,
8.I thought he ____to see his mother
if he _____time.
A.will go…has
B.will go …will have
C.would go …would have
D.would go …had
9.Do you know________
A. what the news are
B. what is the news
C. what the news is
D. what are the news
D
C
解题指导三: 时态呼应
若主句时态是现在时态,宾语从句的时态可根据实际
情况而定;
若主句是过去时态,宾语从句的时态要用过去的某个
时态,客观真理除外。
10. I didn’t know how to London
A.would they go B.are they going
C.they would go D.they are going
C
宾语从句三要素
引导词
that(陈述句 )
if/whether(一般疑问句 )
特殊疑问词(特殊疑问句)
时态
主句为一般现在时从句可为任何时态
主句为一般过去时
从句
一般过去时
过去将来时
过去进行时
过去完成时
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 时态不变
七.本课小结
1. Can you tell me___ you were born, Betty A. who B. what C. when D. that
2. I hardly understand___ he has told me. A. that B. what C. which D. who
3. She doesn't know___ back or not. A. whether B. if C. when D. what
4. I don't know _____ he will go fishing tomorrow. A. whether B. where C. what D.when
5. Do you know _____ they listened to yesterday A. what B .when C. why D. how
C
B
A
B
A
小试牛刀
Thanks