Unit 1 The world of our senses Grammar and usage(2) Noun clauses课件（66张PPT）

课件66张PPT。Unit 2 Grammar and usage
名词性从句 ( II )1.That the earth is round is a fact.
2. Mrs. Black won’t believe that her son
has become a thief.
3. My idea is that we should do it right
now.
4. I had no idea that you were her
friend.主语从句宾语从句表语从句同位语从句Revision :
I. 名词性从句的种类5.That is why English has so many difficult
rules that confuse people.
6. The question of whether English will keep
on changing in the future is easy to
answer .
7. It is certain that this process will continue,
and people will keep inventing new words
and new way of saying things .

表语从句宾语从句主语从句1. ---Do you remember ____ he came? ---Yes, I do. He came by car. a. how b. when c. that d. if
2. ____ we’ll go camping tomorrow depends on the weather. a. If b. Whether c. That d. Where abII. Choose the best answer3. Ask her _____ come with us. a. if she will b. if will she
c. whether she d. whether will she
4. ____ we can’t understand is____ he didn’t join us in our discussion. a. That; why b. Which; how c. What; what d. What; whyad
归纳小结：
名词性从句中引导词的选择步骤： .1. 确定从句的位置 。2.分析从句中是否缺少成分。3.理解整个题目中句子的意思。名词性从句引导词的选择：
1.如果从句中缺少主语，或者宾语，或者表语，
则考虑用 __________ ( 如：who, whom,
whose, what, which, whoever,whatever,
whichever ).
2 .如果从句中既不缺少主语，宾语，也不缺
少表语，但缺少一定意义的状语，则考 虑
用 __________( 如：when,how,why,
where, however,wherever,whenever ) .
连接代词连接副词3.如果从句既不缺少主语，宾语，也不
缺少表语或者状语，则考虑用从属连
词：_________ _______ _________ .thatifwhetherIII.名词性从句的考点：
1. 从句的语序----- 陈述语序 。
2 .that 和what的区别用法 。
3 .whether, if 的区别用法 。
4. it作形式主语和形式宾语的用法。※ 学习任务一:
掌握名词性从句的语序---陈述语序
即“引导词+从句的主语+谓语+ 其它 ”【学生活动一 】【配套练习 】
1.No one can be sure ____ in a million years .
A.what man will look like
B.what will man look like
C.man will look like what
D.what look will man like A2.Tom asked me _____ .
A.whose shirt was this
B.whose shirt this was
C.who was this shirt
D.who this shirt was
3.---Excuse me . Could you tell me ____ ?
--- Certainly .
A.when can I get to the station
B.I can get to which station
C.which station can I get
D.how I can get to the stationBD【总结归纳】“疑问词+ _______+ 陈述句”。
的现象
【学生活动二 】【配套练习 】
1._____ be invited to our wedding
ceremony ?
A.Do you suppose who should
B. Who do you suppose will
C.Who do you suppose
D.Do you suppose who can 插入语B
2.Mum is coming . What present _____
for your birthday ?
A.you expect she has got
B.you expect has she got
C.do you expect she has got
D.do you expect has she gotC
3.Which do you believe _____ more
comfortable to travel , by bus or by
plane ?
A.it is B.it C.is D.what
C※学习任务三：掌握that和what的用法
【学法指导】
引导宾从句时， ______通常可以省略，
引导主语从句，表语从句和同位语从句
时，______不能省；但引导两个或两个
以上宾语从句时，第一个______可省，
但后面的不能省。thatthatthat【配套练习 】选择正确答案：
1.China’s success in manned-spacecraft
travel shows _____ our country has
become one of the greatest powers in
space research .
A.what B.which
C.不填 D.it that C2.She is satisfied with _____ you have given
him and all that you have told him .
A.that B.what C.why D.which
3._____ he has become a rich man is known
to all in the town .
A.Because B.That C. D.What
4.America was _____ was first called “India”
by Columbus .
A.what B.that C.the place D.there where BBA5. Having checked the door were closed , and
_____ all the lights were off , the boy opened
the door to his bedroom .
A.why B.that C.when D.
6.Father made a promise _____ I passed the
exam , he would buy me a bike .
A.that B.if C.whether D.that if
BD※ 学习任务四：whether和if的区别
whether与if均为“是否”的意思，在宾语从句
中一般可通用。但在下列情况下，whether不
能被if取代：
1. whether引导主语从句，表语从句和同位语从句时；
2. whether从句作discuss, doubt, be doubtful等的宾语时；3. whether从句作介词的宾语时；
4. whether + or not ;
5. Whether + to do . ※ 学习任务四：whether和if的区别
【配套练习 】朗读下列句子，用whether和
if填空 ：
1.Let us know ___________ you can finish the
article before Friday .
2._________ he will see me off is uncertain .
3.They are investigating the question ________ the man is trust-worthy .
4.The point is _________ we should lend him the money .whether / ifWhetherwhetherwhether 5.It depends on _________ we have enough
time and money .
6.I don’t care _________ or not she will
attend the meeting .
7.She is doubtful _________ we shall be able
to come .
8.She doesn’t know _________ to get
married now or wait .
whetherwhetherwhetherwhether※ 学习任务五：it作形式主语的用法
试填空比较:
1）______ was reported that the US was under the terrorist attack .
2）_____ was reported , the US was under the terrorist attack .
3）______ was reported is that the US was under the terrorist attack .
It As What ※ 学习任务六：it作形式宾语的用法
【学法指导】常用it作形式宾语的结构：
主语+谓语动词+it +形容词/名词+宾语从句【配套练习 】选择正确答案：
1.He didn’t make _____ clear when and
where the meeting would be held .
A.it B.which C.that D.the
2.I hate _____ when people talk with their
mouths full of food .
A.it B.that C.these D.them
A A Step 3 总结归纳
1.名词性从句要用________语序。
2.宾语从句中的时态与主句的时态要_______ 。
3.______不充当任何成分，无词义，只起连接
作用，_________充当主，宾，表， 定。
4.引导名词性从句时，一般只用whether而不用
if表示“是否”的情况有：陈述一致that what
whether引导主语从句，表语从句和同位语
从句时；
whether从句作discuss,doubt,be doubtful等的
宾语时；
whether从句作介词的宾语时；
whether + or not ;
Whether +to do . Homework:
Step 4 训练拓展
单项选择：1-25
Grammar and usage (2)
preparatory subject it 复习: it作人称代词的用法看下面的例句，归纳小结it的用法
1.It is sunny today . ( )
2.It is 10 o'clock now . ( )
3.It is 20 kilometres from our school to my
home . ( )
4.I bought a new watch yesterday .It is
beautiful . ( )
5. Someone is knocking at the door .Who
is it ? ( )指天气指时间指距离 指代前面提到的新手表本身 指代不明性别或身份的人复习: it作人称代词的用法【学生归纳】it可用来指代
1. 时间、天气、距离
2. 上文提到的事物本身
3. 不明身份的人或物Look at the following sentences and find the real subject of each sentence.
1. It is important for us to learn it well.
2. It is important that we should learn
English well today.
3. It is no use wasting your time reading
such books all day.
1. It is important for us to learn it well.
2. It is important that we should learn
English well today.
3. It is no use wasting your time reading
such books all day.Sometimes in English the subject of a sentence is very long, making the sentence difficult to understand. One way of making the sentence easier to understand is to use the preparatory subject it. With the preparatory subject it, the subject is moved to the end of the sentence, and it is used in its place at the start of the sentence.1. it作形式主语代替主语从句（SB P30）
e.g. That we would not be able to understand
old English today is certain.
= (preferable) It is certain that we would
not be able to understand Old English
today. Whether English will keep on changing
in the future is easy to answer.
= (preferable) It is easy to answer whether English will keep on changing in the future. When we can set off depends on the
weather.
= (preferable) It depends on weather
when we can set off. 1. It + be + 形容词 ( true, certain, possible, obvious, likely…) that…
2. It + be +名词短语 (no wonder, an honour, a pity,…) that…
3. It+ be + 过去分词 (said, reported, expected, announced…) that…
4. It + seems/appears that….
5. It doesn’t matter that… it 作形式主语的句型:e.g. To learn a foreign language is a
challenging task.
= (preferable) It is a challenging task to
master a foreign language.
To gain access to the Internet is
important for us.
= (preferable) It is important for us to
gain access to the Internet. B. it作形式主语代替动词不定式 .C. it作形式主语代替动名词短语 .
e.g. It is fun wandering in the countryside.
= (preferable) Wandering in the
countryside is fun.
It takes up a lot of my time travelling
to Beijing.
= (preferable) Travelling to Beijing
takes up a lot of my time. 2. It 还可用于 seem, appear, happen, chance, turn out ， prove前面，充当形式主语 .
e.g. It seems that he is enthusiastic about
drawing.
= He seems to be enthusiastic about
drawing. It happens that my new neighbour
comes from my home town.
= My new neighbour happens to come
from my home town.Read the dialogue on page 31 and rewrite the sentences in yellow, using the preparatory subject it.
Answers:
2. ______________________________
______________________________
______________________________It requires a good understanding of
their behaviour to know what they
mean.3. ________________________________
________________________________.
4. ________________________________
________________________________.It always puzzles me why my dog
barks in certain waysIt won’t be difficult to buy a machine
like this.Read the letter on page 31 and rewrite the underlined sentences using the preparatory subject it.
Answers:
2. _________________________________
_________________________________.It happens that several racial groups
live in Singapore.3. ________________________________
________________________________
________________________________.
4. ________________________________.It is fun to hear different people
speaking different languages all at
the same timeIt is certain that I’ll see you next week.1. 乘宇宙飞船去月球是可能的。
It is possible to fly to the moon in a spaceship.Translation2. 他似乎已经知道问题的答案。
It seems that he has known the answer to the problem.
3. 我们在哪儿听报告还没定。
It hasn’t been decided where we’ll listen to the report. 掌握it作人称代词的用法完成练习，总结代词指代的内容
it one that
1. This is a story book, ______ is mine.
2. You have a story book, and I also have ______.
3. The plot(情节) of your story book is less interesting than ______ of mine.

itonethat 掌握it作人称代词的用法【归纳】
1. 同类同物 =the+n
2. 同类不同物 =a+n
3. 同类事物且其后有后置定语itonethat【巩固练习】How wonderful the trip is, I will never forget ______.
A. one B. it C. that D. this
2. My watch was lost yesterday, so I had to buy _____.
A. it B. that C. one D. this
3. The weather here is much colder than _______ in our hometown.
A. it B. that C. one D. this用that或what完成下列句子。
1. ______ he wants is a book.
2. ____ he wants to go there is obvious.
3. Is ______ he told us true?
4. We should pay attention to _____ the teacher is saying.
5. I have no idea ______ he did that after-noon.whatwhatwhatWhatThatTips:
that只起连接主从句的功能，不作成分，而what不仅起连接作用，还在从句中作主语或宾语等成分。根据句意填入恰当的词。
1. This is _____ the whole city is fed.
2. I am going, anyway. ________ you’ll go with me is up to you.
3. __________ caused the fire in the lab is still a secret.
4. His success was due to the fact _____ he knew how to make good use of time.howWhetherWhat / Whothat5. The rule ____ boys mustn’t have long
hair is often mentioned in our school.
________ breaks it will be punished.
6. Have you made ___ clear ____ the
form is to be handed in by Friday?
7. Why not try your luck downtown, Bob? That’s ______ the best jobs are.that Whoeveritthatwhere8. Do ________ you believe is right and
keep on trying until you make it.
9. You can only be sure of ______ you
have at present; you cannot be sure of
something ______ you might get in the future.
10. You should stick to ______ you have
begun until you finish it.whatwhateverwhatthat1. I always wondered when I would get
the English novel my parents had
promised to give me. (P28)
[考点] which, who, whom, whose, when,
where, why, how等特殊疑问词引导名
词性从句时，保留原来疑问词的意
思，且从句中用陈述句语序。考点点拨 考例回顾[考例]
Please remind me ______ he said he was going. I may be in time to see him off. (2006全国卷I)
A. where B. when
C. how D. whatB 句意：请提醒我他说他什么时候要走。
也许我能赶上为他送行。第二个句子
中be in time to see him off是关键信息，
所以选择表示时间的when，意为“什么
时候”。2. The difficulty is how I’m going to
read the book without a dictionary.
(P28)
[考点] 特殊疑问词引导名词性从句
时，从句中应用陈述句语序。[考例]
These shoes look very good. I wonder ______. (上海2006春)
A. how much cost they are
B. how much do they cost
C. how much they cost
D. how much are they costC 3. It is certain that we would not be able
to understand Old English today. (P30)
[考点] 当主语由从句、动词不定式、V-
ing形式充当时，可用it作形式主
语，而把真正的主语放在后面。[考例]
______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.（浙江2006）
A. As B. That C. This D. It
句意：我们相信医疗保健方面的改善可以促使经济更加繁荣。it是形式主语，that引导的句子是真正的主语。D 4. It seems that he is enthusiastic about
drawing. (P30)
[考点] 当seem, appear, happen, prove,
chance, turn out等动词在句中作
谓语时，常用it作形式主语。[考例]
Our club is open to adults only. ______ your children have entered without permission.(上海2005春)
A. There seems that B. It seems to be
C. There seems to be D. It seems that D 句意：我们的俱乐部只对成年人开放。
你的孩子们好像未经许可就进来了。
根据句子结构，空格后面是一个句子，
故需that引导，排除B和C项。that引
导的句子是真正的主语，而能充当形
式主语的只有it。