人教版高中英语必修三Unit 4 Astronomy the science of the stars Grammar主语从句课件（共31张PPT）
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| 名称 | 人教版高中英语必修三Unit 4 Astronomy the science of the stars Grammar主语从句课件（共31张PPT） |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2019-01-14 20:11:56 | ||
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课件31张PPT。Unit 4Discovering useful structuresNoun clauses as the subject4. To find your way can be a problem. What does the underlined part serve as in each sentence? 3. Smoking is bad for you.2. You are a student.5. “How do you do?” is a greeting.6. It is certain that we shall be late.subject1. Beijing is our capital.Read the sentences from the text and pay attention to the underlined parts.1. What it was to become was uncertain until between
4.5 and 3.8 billion years ago …
2. … it was not clear whether the shape would last or
not.
3. What is even more important is that as the earth
cooled down, water began to appear on its surface.
4. What many scientists believe is that the continued
presence …
5. Why they suddenly disappeared still remains
a mystery.主语从句是在复合句中充当主语的从句，其功同名词一样。
为了避免头重脚轻，常用it作形式主语, 而把真正主语放在句子末尾。
How the book will sell depends on its author.
That he is the best student in the class is obvious.
= It is obvious that he is the best student in the class.主语从句引导主语从句的关联词有三类： (1)从属连词that
That they were true sisters was clear from the facial resemblance between them.
(2)从属连词whether
Whether he’ll come here isn’t clear.??
(3)连接代词who, whom, whose, what, which, whoever, whatever, whichever，连接副词 where, when, how, why
What she did is not yet known.??
How this happened is not clear to anyone.
Whoever comes is welcome.?? he became a great scientist is known to us all.Who the watch belongs to is unknown.How主语从句用陈述语序关联词位于句首, 不能省略That he finished writing the composition in such a short time surprised us all.1. 在主语从句中，谓语动词一般用单数。Whatever he says is of no importance. Whoever says this is wrong. 但谓语动词用单数还是复数，不可一概而论，而要视句子的意义而定
What I need is money.
What I need are books. 2. what 与that 在引导主语从句时的区别
what引导主语从句时在从句中充当句子成分，如主语、宾语、表语，而that 则不然。
What you said yesterday is right.
That she is still alive is a consolation. 3. It 作形式主语和it引导强调句的比较
It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调, 无论强调的是什么成分, 都可用连词that。被强调部分指人是也可用who / whom。It is still a mystery what caused the accident.
It is a mystery that his death remained.whether引导主语从句时, 常置于句首 (此时whether不能用if代替), 也有后移的用法 (此时whether可以用if代替)
Whether they will come is not yet known.
It is not yet known whether / if they will go there.4. whether与 ifwhether和if的区别还有：
1. 引导表语从句用whether
The question is whether you should accept it.
2. whether可以引导从句作介词的宾语
I’m not interested in whether they’ll go or not.
It depends on whether we have got enough money.
3. whether可以直接跟动词不定式连用
I didn’t know whether to laugh or to cry.
She hasn’t decided whether to go or not.(1) It is ＋ 名词 ＋ 从句
It is a fact that … 事实是…
It is an honor that …非常荣幸
It is common knowledge that …是常识(2) It is ＋ 形容词 ＋ 从句
It is natural that… 很自然…
It is strange that… 奇怪的是…(3) It is ＋ 不及物动词 ＋ 从句
It seems that… 似乎…
It happened that… 碰巧…
It appears that… 似乎…(4) It ＋ 过去分词 ＋ 从句
It is reported that… 据报道…
It has been proved that… 已证实…
It is said that… 据说… 用it 作形式主语的结构【2015·浙江】6. If you swim in a river or lake, be sure to investigate _____ is below the water surface. Often there are rocks or branched hidden in the water.
A. what B. who
C. that D. whoever真题解析【答案】A
【解析】句意：如果你在河里或湖里游泳，请确定查看水面下有什么？通常总有一些石头或树枝藏在水里。此处的what指代的是树枝或石头，B选项和D选项用于指人，that 只有语法意义。句式上，该句用了(If 从句，祈使句)的句式，非谓语to investigate 后接一个宾语从句的表达。分析宾语从句的成分可以发现，空格所做的成分是主语。根据下一句的表述中的树枝和石头，可以得出答案是what.【2015·北京】35. _____we understand things has a lot to do with what we feel.
A. Where B. How
C. Why D. When
答案：B
【解析】 句意：我们如何理解事情与我们所感受的有很大关系。根据句意可知，主语从句缺少方式状语，因此选择how。故选B【2013北京】_______ makes the book so extraordinary is the creative imagination of the writer.
A. That B. What
C. Who D. Which
答案：A
【解析】句意：使得这本书如此不同凡响的是作者创造性的想象力。句子的主语是一个从句，空处是引导主语从句的连词，这个连词要同时在主语从句中充当主语，选B。It doesn’t matter _____ you turn right or left at the crossing — both roads lead to the park. （2012天津）
A. whether B. how
C. if D. when
答案：A
解析：考查 whether 引导主语从句，it 作形式主语。引导主语从句时，只 能用 whether， 不能用 if。It suddenly occurred to him _____ he had left his keys in the office. （2012 江西）
A. whether B. where
C. which D. that
答案：D
解析：此句是 occur to sb.表示“想到、 想起”的典型句式，that 这里是做引导主语从句的连接词。As many as five courses are provided, and you are free to choose _____ suits you best. （2012 陕西）
A. whatever B whichever
C. whenever D. wherever
答案：B
解析：考查名词性从句。所填词引导的从句做动词 choose 的 宾语，引导词在从句中做主语。选 B，其余选项与句意不符。It is still under discussion ______ the old bus station should be replaced with a modern hotel or not. (2011重庆)
A. whether B. when
C. which D. where
解析：根据句意：旧车站是否被一个现代化旅馆代替还在讨论之中。后面出现了or not，故选whether。A ____ Barbara Jones offers to her fans
is honesty and happiness. (2011北京)
A. Which B. What
C. That D. Whom
解析：What引导的是主语从句，在从句中充当offers的宾语。句意为：芭芭拉琼斯为她的粉丝所提供的是诚实和快乐。BBefore a problem can be solved, it must be obvious ____ the problem itself is. (2011湖南)
A. what B. that
C. which D. why
解析：分析句子结构可知，本句为before引导的时间状语从句，在从句中it为形式主语，真正的主语为“_____ the problem itself is”，在此主语从句中又缺少表语，即用what引导。A
______ some people regard as a drawback is seen as a plus by many others. （2010 北京）
A. Whether B. What
C. That D. How
解析：从句中缺宾语，只能用what来引导， C项中的That引导主语从句不做成分。B — How about camping this weekend,
just for a change?
— OK, you want. （2010 浙江）
A．whichever B．however
C．whatever D．whoever
解析：句意：“这个周末野营怎么样，来点新鲜的？”“好啊，按你的意思吧！”根据语境分析出后者支持前面的提出的观点。C It is uncertain side effect the medicine will bring about, although about two thousand patients have taken it. (2010 浙江)
A．that B．what
C．how D．whether
解析：根据句意：尽管大约有两千名病人服用过这种药物，但是，它会带来什么样的副作用还不确定。side effect意思是“副作用”，还原主语从句中的主干是the medicine will bring about ______ side effect。故选what，形容词“什么样的”，起修饰作用。B1. ______ you don’t like him is none of my business. ???? A. What B. Who C. That D. Whether 2. ______ he said at the meeting astonished
everybody present. ???? A. What B. That C. Which D. Whether 3. On my way home in the street, I saw a lady ______
I thought was your aunt. ???? A. who B. what C. which D. whom 4. The Foreign Minister said, “______ is our hope
that the two sides will work to-wards peace.” ???? A. This B. That C. There D. It ?5. We cannot explain _____ quite a number
of insects, birds and other animals are dying out. ???? A. that B. as C. why D. whenChoose the best answers.CAADC6. Does ______ matter if he can’t finish the job on time?
A. this B. that C. he D. it
7. _______ the sports meet will be held depends
on the weather.
A. When ever B. If C. Whether D. That
8. _______ beat Xiao Wang black and blue is not
known.
A. Whom B. Whoever C. Who D. What
9. ______ we can’t get seems better than ______ we have.
A. What; what B. What; that
C. That; that D. That; what DCCA10.______ makes mistakes must correct them. A. What B. That C. Whoever D. Whatever
11. It worried her a bit ____ her hair was turning
grey. A. while B. that C. if D. for
12.When and why he came here ______ yet. A. is not known B. are not known C. has not known D. have not known
13. ______ is no reason for dismissing her. A. Because she was a few minutes late B. Owing to a few minutes
C. The fact that she was a few minutes late D. Being a few minutes late CBAC1. A: That light travels in straight lines is known to all. ????B: ____ _____ _____ ______ that light travels in
straight lines. ?2. A: When the plane is to take off has not been
announced. ????B: ____ ____ ____ _____ _________ when the plane
is to take off. 3. A: It is a mystery to me which of them won the gold
medal. ???B: Which of them won the gold medal ____ _____
________ to me. ?4. A: He hasn’t told us the reason for his being late
again. ???? B: ______ _____ ______ _____ _____ has not
been told.It’s known to allIt has not been announced is amysteryWhy he was late again 1. Review noun clauses as the object, predicative and subject.
2. Finish the exercises in “Discovering useful structures”.
3. Finish the exercises in Using structure of Workbook.Homework
4.5 and 3.8 billion years ago …
2. … it was not clear whether the shape would last or
not.
3. What is even more important is that as the earth
cooled down, water began to appear on its surface.
4. What many scientists believe is that the continued
presence …
5. Why they suddenly disappeared still remains
a mystery.主语从句是在复合句中充当主语的从句，其功同名词一样。
为了避免头重脚轻，常用it作形式主语, 而把真正主语放在句子末尾。
How the book will sell depends on its author.
That he is the best student in the class is obvious.
= It is obvious that he is the best student in the class.主语从句引导主语从句的关联词有三类： (1)从属连词that
That they were true sisters was clear from the facial resemblance between them.
(2)从属连词whether
Whether he’ll come here isn’t clear.??
(3)连接代词who, whom, whose, what, which, whoever, whatever, whichever，连接副词 where, when, how, why
What she did is not yet known.??
How this happened is not clear to anyone.
Whoever comes is welcome.?? he became a great scientist is known to us all.Who the watch belongs to is unknown.How主语从句用陈述语序关联词位于句首, 不能省略That he finished writing the composition in such a short time surprised us all.1. 在主语从句中，谓语动词一般用单数。Whatever he says is of no importance. Whoever says this is wrong. 但谓语动词用单数还是复数，不可一概而论，而要视句子的意义而定
What I need is money.
What I need are books. 2. what 与that 在引导主语从句时的区别
what引导主语从句时在从句中充当句子成分，如主语、宾语、表语，而that 则不然。
What you said yesterday is right.
That she is still alive is a consolation. 3. It 作形式主语和it引导强调句的比较
It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调, 无论强调的是什么成分, 都可用连词that。被强调部分指人是也可用who / whom。It is still a mystery what caused the accident.
It is a mystery that his death remained.whether引导主语从句时, 常置于句首 (此时whether不能用if代替), 也有后移的用法 (此时whether可以用if代替)
Whether they will come is not yet known.
It is not yet known whether / if they will go there.4. whether与 ifwhether和if的区别还有：
1. 引导表语从句用whether
The question is whether you should accept it.
2. whether可以引导从句作介词的宾语
I’m not interested in whether they’ll go or not.
It depends on whether we have got enough money.
3. whether可以直接跟动词不定式连用
I didn’t know whether to laugh or to cry.
She hasn’t decided whether to go or not.(1) It is ＋ 名词 ＋ 从句
It is a fact that … 事实是…
It is an honor that …非常荣幸
It is common knowledge that …是常识(2) It is ＋ 形容词 ＋ 从句
It is natural that… 很自然…
It is strange that… 奇怪的是…(3) It is ＋ 不及物动词 ＋ 从句
It seems that… 似乎…
It happened that… 碰巧…
It appears that… 似乎…(4) It ＋ 过去分词 ＋ 从句
It is reported that… 据报道…
It has been proved that… 已证实…
It is said that… 据说… 用it 作形式主语的结构【2015·浙江】6. If you swim in a river or lake, be sure to investigate _____ is below the water surface. Often there are rocks or branched hidden in the water.
A. what B. who
C. that D. whoever真题解析【答案】A
【解析】句意：如果你在河里或湖里游泳，请确定查看水面下有什么？通常总有一些石头或树枝藏在水里。此处的what指代的是树枝或石头，B选项和D选项用于指人，that 只有语法意义。句式上，该句用了(If 从句，祈使句)的句式，非谓语to investigate 后接一个宾语从句的表达。分析宾语从句的成分可以发现，空格所做的成分是主语。根据下一句的表述中的树枝和石头，可以得出答案是what.【2015·北京】35. _____we understand things has a lot to do with what we feel.
A. Where B. How
C. Why D. When
答案：B
【解析】 句意：我们如何理解事情与我们所感受的有很大关系。根据句意可知，主语从句缺少方式状语，因此选择how。故选B【2013北京】_______ makes the book so extraordinary is the creative imagination of the writer.
A. That B. What
C. Who D. Which
答案：A
【解析】句意：使得这本书如此不同凡响的是作者创造性的想象力。句子的主语是一个从句，空处是引导主语从句的连词，这个连词要同时在主语从句中充当主语，选B。It doesn’t matter _____ you turn right or left at the crossing — both roads lead to the park. （2012天津）
A. whether B. how
C. if D. when
答案：A
解析：考查 whether 引导主语从句，it 作形式主语。引导主语从句时，只 能用 whether， 不能用 if。It suddenly occurred to him _____ he had left his keys in the office. （2012 江西）
A. whether B. where
C. which D. that
答案：D
解析：此句是 occur to sb.表示“想到、 想起”的典型句式，that 这里是做引导主语从句的连接词。As many as five courses are provided, and you are free to choose _____ suits you best. （2012 陕西）
A. whatever B whichever
C. whenever D. wherever
答案：B
解析：考查名词性从句。所填词引导的从句做动词 choose 的 宾语，引导词在从句中做主语。选 B，其余选项与句意不符。It is still under discussion ______ the old bus station should be replaced with a modern hotel or not. (2011重庆)
A. whether B. when
C. which D. where
解析：根据句意：旧车站是否被一个现代化旅馆代替还在讨论之中。后面出现了or not，故选whether。A ____ Barbara Jones offers to her fans
is honesty and happiness. (2011北京)
A. Which B. What
C. That D. Whom
解析：What引导的是主语从句，在从句中充当offers的宾语。句意为：芭芭拉琼斯为她的粉丝所提供的是诚实和快乐。BBefore a problem can be solved, it must be obvious ____ the problem itself is. (2011湖南)
A. what B. that
C. which D. why
解析：分析句子结构可知，本句为before引导的时间状语从句，在从句中it为形式主语，真正的主语为“_____ the problem itself is”，在此主语从句中又缺少表语，即用what引导。A
______ some people regard as a drawback is seen as a plus by many others. （2010 北京）
A. Whether B. What
C. That D. How
解析：从句中缺宾语，只能用what来引导， C项中的That引导主语从句不做成分。B — How about camping this weekend,
just for a change?
— OK, you want. （2010 浙江）
A．whichever B．however
C．whatever D．whoever
解析：句意：“这个周末野营怎么样，来点新鲜的？”“好啊，按你的意思吧！”根据语境分析出后者支持前面的提出的观点。C It is uncertain side effect the medicine will bring about, although about two thousand patients have taken it. (2010 浙江)
A．that B．what
C．how D．whether
解析：根据句意：尽管大约有两千名病人服用过这种药物，但是，它会带来什么样的副作用还不确定。side effect意思是“副作用”，还原主语从句中的主干是the medicine will bring about ______ side effect。故选what，形容词“什么样的”，起修饰作用。B1. ______ you don’t like him is none of my business. ???? A. What B. Who C. That D. Whether 2. ______ he said at the meeting astonished
everybody present. ???? A. What B. That C. Which D. Whether 3. On my way home in the street, I saw a lady ______
I thought was your aunt. ???? A. who B. what C. which D. whom 4. The Foreign Minister said, “______ is our hope
that the two sides will work to-wards peace.” ???? A. This B. That C. There D. It ?5. We cannot explain _____ quite a number
of insects, birds and other animals are dying out. ???? A. that B. as C. why D. whenChoose the best answers.CAADC6. Does ______ matter if he can’t finish the job on time?
A. this B. that C. he D. it
7. _______ the sports meet will be held depends
on the weather.
A. When ever B. If C. Whether D. That
8. _______ beat Xiao Wang black and blue is not
known.
A. Whom B. Whoever C. Who D. What
9. ______ we can’t get seems better than ______ we have.
A. What; what B. What; that
C. That; that D. That; what DCCA10.______ makes mistakes must correct them. A. What B. That C. Whoever D. Whatever
11. It worried her a bit ____ her hair was turning
grey. A. while B. that C. if D. for
12.When and why he came here ______ yet. A. is not known B. are not known C. has not known D. have not known
13. ______ is no reason for dismissing her. A. Because she was a few minutes late B. Owing to a few minutes
C. The fact that she was a few minutes late D. Being a few minutes late CBAC1. A: That light travels in straight lines is known to all. ????B: ____ _____ _____ ______ that light travels in
straight lines. ?2. A: When the plane is to take off has not been
announced. ????B: ____ ____ ____ _____ _________ when the plane
is to take off. 3. A: It is a mystery to me which of them won the gold
medal. ???B: Which of them won the gold medal ____ _____
________ to me. ?4. A: He hasn’t told us the reason for his being late
again. ???? B: ______ _____ ______ _____ _____ has not
been told.It’s known to allIt has not been announced is amysteryWhy he was late again 1. Review noun clauses as the object, predicative and subject.
2. Finish the exercises in “Discovering useful structures”.
3. Finish the exercises in Using structure of Workbook.Homework
同课章节目录