人教版（2019）选择性必修第二册Unit 2 Bridging Cultures Discover Useful Structures 主语从句课件-（35张ppt)
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| 名称 | 人教版（2019）选择性必修第二册Unit 2 Bridging Cultures Discover Useful Structures 主语从句课件-（35张ppt) |  | |
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| 科目 | 英语 | ||
| 更新时间 | 2023-02-13 08:50:49 | ||
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(共35张PPT)
人教版2019 选择性必修二
Period 3 Discovering useful structures
Subject Clauses
Unit 2 Bridging Cultures
Teaching objectives
1. 主语从句的概念
2. 主语从句的连接词
3. 主语从句的用法
Part 1 主语从句的概念
1. What seemed strange before now appears quite normal to Xie Lei.
2. What surprised Xie Lei was that she found herself speaking up in class after just a few weeks.
3. It is important that Xie Lei keeps a balance between her studies and her social life.
什么是
主语从句？
主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前；或由形式主语it代替，而本身放在句子末尾。
小结：
探究 从句的结构&语序
Who will win the match is still unknown.
Where the party will be held has not yet been announced.
That she used to be a spy is known to all.
Whether it will do good to us remains to be seen.
小结：
结构：连接词+主语+谓语（+宾语）
语序：所有从句一律保持 语序
陈述句
主语从句的连接词
从属连词 that, if, whether
连接代词 who, whoever, whom, whomever, whose, which, whichever, what, whatever
连接副词 where, when, why, how
1. That he will win is certain.
2. That you are coming to London is known to all.
3. That he will come to our village tomorrow surprises us all.
that：当主语从句本身不缺成分时，用 连接。只起连接作用，本身无实义，不充当任何成分，但不能省略。
1. 从属连词that：
that
1. Whether he’ll join us in the discussion is of great importance.
2. Whether they would support us was a problem.
当主语从句本身含有是否的意思时，连接词必须用 。不充当从句的任何成分。
2. 从属连词whether：
whether
who, what, which, whoever, whatever, whichever, whose引导主语从句，有意义，并在从句中充当成分（主语、宾语、定语、表语）。
Who will meet him is not decided.
What you told me just now was really a surprise.
Which class will win the football game is not clear.
Whoever breaks the law should be punished.
Whatever he says is of no importance.
Whichever of you comes first will receive a prize.
3. 连接代词
1) _________ you said yesterday is right.
2) _________ she is still alive is a consolation（安慰）.
3) _________ he lost the bike worried him a lot.
4) _________ caused the accident remains unknown.
5) _________ made matters worse was that night began to fall.
6) _________ we can’ t get seems better than that we have.
That
注： what 与 that在引导主语从句时的区别
与that不同的是，what除了可以引导主语从句起连接作用外，还同时在从句中充当句子成分主语、宾语或表语。
What
What
That
What
What
作宾语
不作成分
不作成分
作主语
作主语
作宾语
4. 连接副词
When they will arrive at the station is very important.
How the accident happended is still unknown.
Why he was absent from the meeting remains a mystery.
Where I will spend my summer is none of your business.
能够用来连接主语从句的连接副词主要有：when、where、why、how等。这些连接副词在主语从句中作状语，不可省略。
为了避免句子头重脚轻，通常把形式主语it放在主语位置，真正主语置于句末。
1. It＋be＋形容词(necessary, right, (un)likely, wrong, important, certain, clear, obvious, strange, normal, true, natural, surprising, good, wonderful, funny, possible, probable等)＋that从句。
例：我不可能接受像那样的帮助。
.
it做形式主语
It isn’ t likely that I should accept such an offer as that
It is necessary that… 有必要…
It is important that …. 重要的是…
It is obvious that…… 很明显……
②It＋be＋名词（词组）(a pity, a shame, good news, a fact, an honor, a wonder, no wonder, a good thing, no surprise等)＋that从句。
例：难怪他不想去。
.
It was no wonder that he didn’ t want to go
It is common knowledge that… …是常识
It is a surprise that …. 令人惊奇的是…
It is a fact that…… 事实是……
3. It + be + 过去分词 (said, told, heard, reported, decided, suggested, advised, ordered, remembered, thought, considered, well-known, announced等) + that从句
例：据说这个新改编本将在明年出版。
It is said that the new adaptation will come out next year.
It is known to all that... 众所周知……
It is reported that... 据报道……
It is believed that... 据信……;人们相信……
It is suggested that... 有人建议……
It must be pointed out that... 必须指出……
It has been proved that... 已证明…….
【特别注意】
It is important / natural / necessary / impossible that...句型中, 主语从句应使用虚拟语气, 谓语动词用“should + 动词原形”的形式, should有时有感彩。
在“It+be+suggested / advised / ordered / requested / insisted / required... + that从句”结构中, 从句谓语应用“(should+)动词原形”。
4. It+特殊动词或短语(seem, appear, happen, matter, turn out, occur to, make no difference等)+that从句
例：一些导弹似乎已经被移走了。
It appears that some missiles have been moved.
It seems/appears that... 似乎……
It happened that... 碰巧……
It occurred to me that…… 我突然想起……
It 作形式主语和it引导强调句的比较
主语从句常用it作形式主语，一般常用句型为：It is+{名词/形容词/过去分词}+主语从句
强调句的结构是：It+be+被强调部分+that+从句
强调主语：It is the times that produce their heroes.时势造英雄
强调宾语：It is English that Prof. Lin teaches us.
强调状语：It was in shanghai that I saw the film.
判断强调句de方法：将that以后的“句子的其余部分”拿出来单独看，看有没有缺成分，缺的是什么成分，再把谓语动词后面that前面的那部分，带到你认为缺成分的地方，如果放进去是一句完整的句子了，那就说明是强调句。
whether与if引导主语从句：
主语从句位于主句谓语动词前，表示“是否”，只能用 whether引导；若用it作形式主语，则if与whether可互换。
例1：Whether it will do good to us remains to be seen.
改为：
例2：Whether the band would visit our city was still a mystery.
改为：
It remains to be seen if/whether it will do good to us.
It was still a mystery if/whether the band would visity our city.
不能换成if
可以与if 进行替换
if 不能置于句首
主谓一致
1.When he will do the experiment ________ (have) not been decided yet.
2.What we badly need ________ enough time to sleep.
3.What the boy wants __________ some books of great benefit.
has
is
are
从句做主语谓语一般用单数
what从句根据它所指代的内容确认谓语单复数
各类主语从句的用法
分析句子成分
缺主宾表定
缺状语
用连接代词
用连接副词
根据语意缺什么补什么
不缺成分
缺“是否”
不缺成分
无实义
用连接词that
用连接词whether
解题方法&步骤：
who, whoever, whom, whomever, whose, which, whichever, what, whatever
where, when, why, how
Pratice
选择题
1. _____ as much as one-fifth of all timber harvested is not used.
A. The estimate B. The estimated
C. They are estimated D. It is estimated that
2. _____ some mammals came to live in the sea is not known.
A. Which B. Since C. Although D. How
3. _____ we have achieved is attributed to the guidance of our parents.
A. Whoever B. Whatever C. However D. That
4. _____ wealthy does not necessarily mean that a man is greedy.
A. For the reason that he is B. Just because he is
C. The reason of being D. That he is
5. Although ___ happened in this developed country sounds like science fiction, it could occur elsewhere in the world.
A. which B. what C. how D. it
6. _____ she had forgotten to take her notebook.
A. That occurred to her B. She occurred that
C. To her that occurred D. It occurred to her that
7. I am sure that _____ she said is wrong.
A. which B. all C. this D. what
8. We lost our way in the forest, and ____ made matters worse was that it was getting dark.
A. that B. which C. it D. what
9. _____ or not is still uncertain.
A. He’ s coming B. If he is coming
C. That coming D. Whether he’ s coming
10. It’ s _____ he’ ll be able to come.
A. doubt whether B. doubtful C. doubt it D. doubtful whether
Whether he will come on the weather.
What I want money.
What we need good books
What he said reasonable.
What we will do decided.
Where he was born and where he lives now not clear.
Where and when he was born a secret.
填入正确的谓语动词
depends
is
are
is
hasn’ t been
are
remains
找出下列句子中的主语从句及其引导词，并指出引导词是否充当成分，充当什么成分。
1. That we shall be late is certain.
2. That the driver could not control his car was obvious.
3. It is certain that we shall be late.
4. It was obvious that the driver could not control his car.
5. Is it possible that they will come tomorrow？
6. It is clear that he was telling the truth.
7. It’ s probable that we’ ll be a little late.
8. What caused the accident is a complete mystery.
9. It worried her a bit that her hair was turning grey.
10. It shocked me that Peter didn’ t tell anybody where he was.
用适当的引导词填空。
1. It is likely _________ he is the winner of this game.
很可能他是这场游戏的胜利者。
2. __________ she bought so many dictionaries is not clear.
= It is not clear _________ she bought so many dictionaries.
不清楚她为什么买这么多字典。
3. __________ he was admitted into Beijing University made his teachers and parents happy.
他考上了北大，这让他的老师和父母很高兴。
4. It’ s a pity__________ you can’ t attend my birthday party.
很可惜你不能参加我的生日聚会。
5. ____________ we will build a new high school hasn’ t been decided.
我们是否要建新高中还没决定呢。
that
Why
why
That
that
Whether
6. ______________ breaks the law should be punished.
不管谁违法都应该受到惩罚。
7. It is necessary ______ the problem (should) be solved at once.
很有必要立刻解决这个问题。
8. ________ he was born is unknown.
他生于何时还不知道。
9 It is possible _______ he has stolen the car.
很可能他偷了小车。
10. _______ has broken the glass is unknown.
谁打破了玻璃现在还不知道。
Whoever
that
When
that
Who
翻译
1．(谁将去接他)__________________________ is not decided.
2．(哪个班极会赢得这场足球赛)
____________________________________________ is not clear.
3．(他能否买到飞机票)_____________________________________ doesn’ t matter much.
4．(我们如何去那里)_________________________________ is a question.
5．(你刚才告诉我的)_______________________________ was really a surprise.
Who will pick him up
Which class will win the football match
Whether he can buy the plane ticket
How we will go there
What you told me just now
6．(他什么时候出国)___________________________ is being discussed.
7．(他为什么哭)__________________________ is not clear.
8．It is clear_________________________(他是一个乞丐).
9．(你要请谁)__________________________________ is not important.
10．(我们将在哪里举行篮球赛)
__________________________________________ is not clear.
Why he cried
that he is a beggar
When he will go abroad
Who you will invite
Where we will hold the basketball match
1. 他来帮助你是确实无疑的。
.
2. 月球上有没有生命是个有趣的问题。
.
3. 他要跟我们说什么，还不清楚。
.
4. 谁能赢得这场比赛还不得而知。
.
That he will come and help you is certain
Whether there is life on the moon is an interesting question
What he wants to tell us is not clear
Who will win the match is still unknown
5．英语晚会将在哪里举行，还没有宣布。
.
6．我们都知道他是如何成为一名作家的。
.
7. 他没来参加这个聚会真是一个遗憾。
.
8. 很显然，学生应该为他们的未来做好充分的准备。
.
It is obvious to students that they should get well prepared for their future.
Where the English evening will be held has not yet been announced
It is known to us how he became a writer
It is a pity that he didn’ t take part in this party
that whether
what（ever） which(ever) who(ever)
whom(ever) whose
when where how why
whenever wherever however
连接词
连接代词
连接副词
无意义
是否
不做成分
作主、宾、表 、定语
作状语
主语从句三要素
谓语一般用单数
从句用陈述语序
不能省略关联词
Thank you for your listening!
人教版2019 选择性必修二
Period 3 Discovering useful structures
Subject Clauses
Unit 2 Bridging Cultures
Teaching objectives
1. 主语从句的概念
2. 主语从句的连接词
3. 主语从句的用法
Part 1 主语从句的概念
1. What seemed strange before now appears quite normal to Xie Lei.
2. What surprised Xie Lei was that she found herself speaking up in class after just a few weeks.
3. It is important that Xie Lei keeps a balance between her studies and her social life.
什么是
主语从句？
主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前；或由形式主语it代替，而本身放在句子末尾。
小结：
探究 从句的结构&语序
Who will win the match is still unknown.
Where the party will be held has not yet been announced.
That she used to be a spy is known to all.
Whether it will do good to us remains to be seen.
小结：
结构：连接词+主语+谓语（+宾语）
语序：所有从句一律保持 语序
陈述句
主语从句的连接词
从属连词 that, if, whether
连接代词 who, whoever, whom, whomever, whose, which, whichever, what, whatever
连接副词 where, when, why, how
1. That he will win is certain.
2. That you are coming to London is known to all.
3. That he will come to our village tomorrow surprises us all.
that：当主语从句本身不缺成分时，用 连接。只起连接作用，本身无实义，不充当任何成分，但不能省略。
1. 从属连词that：
that
1. Whether he’ll join us in the discussion is of great importance.
2. Whether they would support us was a problem.
当主语从句本身含有是否的意思时，连接词必须用 。不充当从句的任何成分。
2. 从属连词whether：
whether
who, what, which, whoever, whatever, whichever, whose引导主语从句，有意义，并在从句中充当成分（主语、宾语、定语、表语）。
Who will meet him is not decided.
What you told me just now was really a surprise.
Which class will win the football game is not clear.
Whoever breaks the law should be punished.
Whatever he says is of no importance.
Whichever of you comes first will receive a prize.
3. 连接代词
1) _________ you said yesterday is right.
2) _________ she is still alive is a consolation（安慰）.
3) _________ he lost the bike worried him a lot.
4) _________ caused the accident remains unknown.
5) _________ made matters worse was that night began to fall.
6) _________ we can’ t get seems better than that we have.
That
注： what 与 that在引导主语从句时的区别
与that不同的是，what除了可以引导主语从句起连接作用外，还同时在从句中充当句子成分主语、宾语或表语。
What
What
That
What
What
作宾语
不作成分
不作成分
作主语
作主语
作宾语
4. 连接副词
When they will arrive at the station is very important.
How the accident happended is still unknown.
Why he was absent from the meeting remains a mystery.
Where I will spend my summer is none of your business.
能够用来连接主语从句的连接副词主要有：when、where、why、how等。这些连接副词在主语从句中作状语，不可省略。
为了避免句子头重脚轻，通常把形式主语it放在主语位置，真正主语置于句末。
1. It＋be＋形容词(necessary, right, (un)likely, wrong, important, certain, clear, obvious, strange, normal, true, natural, surprising, good, wonderful, funny, possible, probable等)＋that从句。
例：我不可能接受像那样的帮助。
.
it做形式主语
It isn’ t likely that I should accept such an offer as that
It is necessary that… 有必要…
It is important that …. 重要的是…
It is obvious that…… 很明显……
②It＋be＋名词（词组）(a pity, a shame, good news, a fact, an honor, a wonder, no wonder, a good thing, no surprise等)＋that从句。
例：难怪他不想去。
.
It was no wonder that he didn’ t want to go
It is common knowledge that… …是常识
It is a surprise that …. 令人惊奇的是…
It is a fact that…… 事实是……
3. It + be + 过去分词 (said, told, heard, reported, decided, suggested, advised, ordered, remembered, thought, considered, well-known, announced等) + that从句
例：据说这个新改编本将在明年出版。
It is said that the new adaptation will come out next year.
It is known to all that... 众所周知……
It is reported that... 据报道……
It is believed that... 据信……;人们相信……
It is suggested that... 有人建议……
It must be pointed out that... 必须指出……
It has been proved that... 已证明…….
【特别注意】
It is important / natural / necessary / impossible that...句型中, 主语从句应使用虚拟语气, 谓语动词用“should + 动词原形”的形式, should有时有感彩。
在“It+be+suggested / advised / ordered / requested / insisted / required... + that从句”结构中, 从句谓语应用“(should+)动词原形”。
4. It+特殊动词或短语(seem, appear, happen, matter, turn out, occur to, make no difference等)+that从句
例：一些导弹似乎已经被移走了。
It appears that some missiles have been moved.
It seems/appears that... 似乎……
It happened that... 碰巧……
It occurred to me that…… 我突然想起……
It 作形式主语和it引导强调句的比较
主语从句常用it作形式主语，一般常用句型为：It is+{名词/形容词/过去分词}+主语从句
强调句的结构是：It+be+被强调部分+that+从句
强调主语：It is the times that produce their heroes.时势造英雄
强调宾语：It is English that Prof. Lin teaches us.
强调状语：It was in shanghai that I saw the film.
判断强调句de方法：将that以后的“句子的其余部分”拿出来单独看，看有没有缺成分，缺的是什么成分，再把谓语动词后面that前面的那部分，带到你认为缺成分的地方，如果放进去是一句完整的句子了，那就说明是强调句。
whether与if引导主语从句：
主语从句位于主句谓语动词前，表示“是否”，只能用 whether引导；若用it作形式主语，则if与whether可互换。
例1：Whether it will do good to us remains to be seen.
改为：
例2：Whether the band would visit our city was still a mystery.
改为：
It remains to be seen if/whether it will do good to us.
It was still a mystery if/whether the band would visity our city.
不能换成if
可以与if 进行替换
if 不能置于句首
主谓一致
1.When he will do the experiment ________ (have) not been decided yet.
2.What we badly need ________ enough time to sleep.
3.What the boy wants __________ some books of great benefit.
has
is
are
从句做主语谓语一般用单数
what从句根据它所指代的内容确认谓语单复数
各类主语从句的用法
分析句子成分
缺主宾表定
缺状语
用连接代词
用连接副词
根据语意缺什么补什么
不缺成分
缺“是否”
不缺成分
无实义
用连接词that
用连接词whether
解题方法&步骤：
who, whoever, whom, whomever, whose, which, whichever, what, whatever
where, when, why, how
Pratice
选择题
1. _____ as much as one-fifth of all timber harvested is not used.
A. The estimate B. The estimated
C. They are estimated D. It is estimated that
2. _____ some mammals came to live in the sea is not known.
A. Which B. Since C. Although D. How
3. _____ we have achieved is attributed to the guidance of our parents.
A. Whoever B. Whatever C. However D. That
4. _____ wealthy does not necessarily mean that a man is greedy.
A. For the reason that he is B. Just because he is
C. The reason of being D. That he is
5. Although ___ happened in this developed country sounds like science fiction, it could occur elsewhere in the world.
A. which B. what C. how D. it
6. _____ she had forgotten to take her notebook.
A. That occurred to her B. She occurred that
C. To her that occurred D. It occurred to her that
7. I am sure that _____ she said is wrong.
A. which B. all C. this D. what
8. We lost our way in the forest, and ____ made matters worse was that it was getting dark.
A. that B. which C. it D. what
9. _____ or not is still uncertain.
A. He’ s coming B. If he is coming
C. That coming D. Whether he’ s coming
10. It’ s _____ he’ ll be able to come.
A. doubt whether B. doubtful C. doubt it D. doubtful whether
Whether he will come on the weather.
What I want money.
What we need good books
What he said reasonable.
What we will do decided.
Where he was born and where he lives now not clear.
Where and when he was born a secret.
填入正确的谓语动词
depends
is
are
is
hasn’ t been
are
remains
找出下列句子中的主语从句及其引导词，并指出引导词是否充当成分，充当什么成分。
1. That we shall be late is certain.
2. That the driver could not control his car was obvious.
3. It is certain that we shall be late.
4. It was obvious that the driver could not control his car.
5. Is it possible that they will come tomorrow？
6. It is clear that he was telling the truth.
7. It’ s probable that we’ ll be a little late.
8. What caused the accident is a complete mystery.
9. It worried her a bit that her hair was turning grey.
10. It shocked me that Peter didn’ t tell anybody where he was.
用适当的引导词填空。
1. It is likely _________ he is the winner of this game.
很可能他是这场游戏的胜利者。
2. __________ she bought so many dictionaries is not clear.
= It is not clear _________ she bought so many dictionaries.
不清楚她为什么买这么多字典。
3. __________ he was admitted into Beijing University made his teachers and parents happy.
他考上了北大，这让他的老师和父母很高兴。
4. It’ s a pity__________ you can’ t attend my birthday party.
很可惜你不能参加我的生日聚会。
5. ____________ we will build a new high school hasn’ t been decided.
我们是否要建新高中还没决定呢。
that
Why
why
That
that
Whether
6. ______________ breaks the law should be punished.
不管谁违法都应该受到惩罚。
7. It is necessary ______ the problem (should) be solved at once.
很有必要立刻解决这个问题。
8. ________ he was born is unknown.
他生于何时还不知道。
9 It is possible _______ he has stolen the car.
很可能他偷了小车。
10. _______ has broken the glass is unknown.
谁打破了玻璃现在还不知道。
Whoever
that
When
that
Who
翻译
1．(谁将去接他)__________________________ is not decided.
2．(哪个班极会赢得这场足球赛)
____________________________________________ is not clear.
3．(他能否买到飞机票)_____________________________________ doesn’ t matter much.
4．(我们如何去那里)_________________________________ is a question.
5．(你刚才告诉我的)_______________________________ was really a surprise.
Who will pick him up
Which class will win the football match
Whether he can buy the plane ticket
How we will go there
What you told me just now
6．(他什么时候出国)___________________________ is being discussed.
7．(他为什么哭)__________________________ is not clear.
8．It is clear_________________________(他是一个乞丐).
9．(你要请谁)__________________________________ is not important.
10．(我们将在哪里举行篮球赛)
__________________________________________ is not clear.
Why he cried
that he is a beggar
When he will go abroad
Who you will invite
Where we will hold the basketball match
1. 他来帮助你是确实无疑的。
.
2. 月球上有没有生命是个有趣的问题。
.
3. 他要跟我们说什么，还不清楚。
.
4. 谁能赢得这场比赛还不得而知。
.
That he will come and help you is certain
Whether there is life on the moon is an interesting question
What he wants to tell us is not clear
Who will win the match is still unknown
5．英语晚会将在哪里举行，还没有宣布。
.
6．我们都知道他是如何成为一名作家的。
.
7. 他没来参加这个聚会真是一个遗憾。
.
8. 很显然，学生应该为他们的未来做好充分的准备。
.
It is obvious to students that they should get well prepared for their future.
Where the English evening will be held has not yet been announced
It is known to us how he became a writer
It is a pity that he didn’ t take part in this party
that whether
what（ever） which(ever) who(ever)
whom(ever) whose
when where how why
whenever wherever however
连接词
连接代词
连接副词
无意义
是否
不做成分
作主、宾、表 、定语
作状语
主语从句三要素
谓语一般用单数
从句用陈述语序
不能省略关联词
Thank you for your listening!