人教版（2019）选择性必修第一册Unit 5 Working the Land Working the land主语从句课件(共30张PPT)

(共30张PPT)
Subject Clause
主语从句
Discover Useful Structures
Unit 5
句子
类型
简单句
并列句
复合句
主句
形容词性从句 (定语从句)
名词性从句
副词性从句(状语从句)
主语从句
宾语从句
表语从句
同位语从句
从句
Definition and types:
5. To find your way can be a problem.
4. Smoking is bad for you.
1. Jane works hard.
2. You are a student.
3. The old should be respected.
What’s the subject （什么是主语？）
6. What she said is not yet known.
结论：
主语是句子说明的人或事物，一般放在______。
一个句子来充当_______叫主语从句。
句首
主语
主语从句作主语
名词作主语
代词作主语
形容词作主语
动名词作主语
动词不定式时作主语
课文原句回顾
1. However, 　　　　 concerned him most was 　　　　
farmers often had poor harvests and sometimes even had a
serious shortage of food to eat.
2. 　　　　 this could be done was a challenging question at the
time.
3. However, 　　　　 it was possible to develop a hybrid of self-
pollinating plants such as rice was a matter of great debate.
4. Today, 　　　　 is estimated 　　　　 about 60 percent of
domestic rice...
5. 　　　　 impresses people most about Yuan Longping is his
ongoing ability to fulfil his dreams.
what
that
How
whether
it
that
What
1.The man is looking at you.
2.You are a student.
3.To find your way is a problem.
4.Smoking is bad for you.
5.What you need is a book.
6.That Tom will come here excites me.
7.When they will turn up is uncertain.
8.It is a pity that you didn’t see him.
Find out the subject in the sentences.
用作主语的从句叫主语从句。
什么是主语从句
在主从复合句中，充当主语的从句是主语从句。它是名词性从句之一，使用陈述句语序。
引导的连接词有从属连词、连接代词和连接副词。
引导主语从句的从属 连词有：
that、whether 、 if
引导主语从句的连接连词有：
who、whoever、whom、whose、what、whatever、which、whichever
引导主语从句的连接副词有：
when、where、how、why
“缺什么补什么”原则
缺主语，指人用____，指物用_____
缺宾语，指人用______ _，指物用____
缺时间状语用______；
地点状语用______；
原因状语用_____；
方式状语用_____；
定语用____________；
什么都不缺用_______，缺“是否”_______
who
what
who/whom
what
when
where
why
how
which/whose
主语从句的连接词
that
whether
主语从句语序
When will he come is not known.
When he will come is not known.
√
×
主语从句一律用陈述语序，即主语在前，谓语在后。例如：
Whether they would support us was a problem.
What she said is true.
Where she is from is unknown.
When they will start is not known yet.
1.That Yuan devoted all his life to developing hybrid rice moved all people around the world.
2.Whether it was possible to develop a hybrid plant was a matter of great debate .
that _____成分，___意义，____省略。
whether ____成分，__意义，译为_____。
从属连词引导主语从句只起引导作用，在主语从句中不充当任何成分。
不做
是否
无
不能
不做
有
1. ： that、whether 、 if
引导主语从句的从属 连词
Who will go makes no difference.
What we need is more time.
Which book I shall choose hasn't been decided.
Whoever breaks the law will be punished.
who在主语从句中充当 _____, 译为 ___。
what在主语从句中充当 _____, 译为 ____。
which在主语从句中充当 _______, 译为 _______。
whoever在主语从句中充当 _______, 译为 _______。
2. 连接代词: who、whoever、whom、whose、what、whatever、which、whichever
宾语
什么
主语
谁
主语
无论谁
定语
哪一个
连接
代词
连接副词when、where、why、how在主语从句中充当状语。
(1)When he will come is uncertain.（他什么时候来还不确定。）→when作时间状语，译为“什么时候”。
(2)Where the meeting will be held is uncertain.（会议将在哪儿举办还不确定。） →where作地点状语，译为“在哪里”。
(3)Why he cries is not clear.（不明白他为什么哭。）
→why作原因状语，译为“为什么”。
(4)How he comes here is not clear.（不清楚他如何来这儿的。）
→how作方式状语，译为“如何，怎样”。
1.连接副词
When we will leave hasn't been decided.
Where the meeting will be held is not known.
Why he cries is not clear.
How she keeps healthy is a secret.
when在主语从句中充当 _______, 译为 ______。
where在主语从句中充当 _______, 译为 ______。
why在主语从句中充当 _______, 译为 _______。
how在主语从句中充当 _______, 译为 _______。
3.连接副词：when、where、how、why
连接
副词
状语
什么时候
状语
哪里
状语
为什么
状语
怎样
what 与 that在引导主语从句时的区别
1. _______ you said yesterday is right.
2. _______ she is still alive is exciting.
3. _______ he lost the bike worried him a lot.
4. _______ he lost yesterday is his bike.
What
That
What
That
what 既引导从句，又在从句中充当主语、宾语或表语，而that 只引导从句，不在从句中充当成分。
探寻规律1： 主语从句 主谓一致 问题
1. Whether the patient will be taken ______ unknown.
2. When and where the patient will be taken _____ unknown.
3. When the task can be finished and whether he can have a rest _____ unknown.
4. What he wants most ____ staying with his family.
What they need _______ masks(口罩).
is
单个从句做主语，谓语大多数使用_______ (单数？复数？)
单数
由两个连接词引导同一个主从，谓动使用____ (单数？复数？)
单数
主语为and连接的两个主从时，谓动使用____ (单数？复数？)
复数
what在主从中做宾语时，谓语的单复数取决它后面的表语。
are
is
are
is
陈述语序
陈述语序
★主语从句一律用__________即主语在前，谓语在后。
陈述语序
主语从句的主谓一致问题
1. That he will pass the exam is certain.
2. Which book I shall choose hasn't been decided.
3. How she keeps healthy is a secret.
4. When they will start and where they will go _____(be)still
unknown.
are
当单个主语从句充当句子主语时，谓语动词用单数；当两个或两个以上的主语从句充当主语时，谓语动词用复数。
探寻规律3： 主语从句太长怎么办？
That all countries work together is important.
用一个 It 来解决问题！
It is important that all countries work together.
★主语从句为了避免头重脚轻现象,用it做_______，而把从句放在后面充当_________。
真正的主语
形式主语
主语从句一般放在句首, 但有时为了使句子结构平衡, 避免
“头重脚轻”, 常用 it 作形式主语, 而把从句放在后面。
1. That the earth moves around the sun is well known.
It is well known that the earth moves around the sun.
2. That she has made such a mistake is a pity .
It is a pity that she has made such a mistake.
3. Whether he'll come here isn't clear.
It isn't clear whether/if he'll come here.
注意：主语从句位于句首时, 不能用if 引导, 主语从句后置时, 才可以用if引导。
有时用it作形式主语，将主语从句后置, 这样做是为了避免句子头重脚轻。
1) It is obvious (that) he doesn’t like the gift.1)
2) It is a surprise that he finished the work in such a short time.
3) It is reported that china had sent another spaceship.
4)It happened that he was out that day.
1) It+ be + 形容词+ that从句
2) It+ be +名词+ that从句
3) It+ be + 动词的过去分词+ that从句 (said, believed, reported, known, proved, …)
4) It + 不及物动词+ that从句(seem,appear, happen…)
It 作形式主语的句型
It作形式主语的常见句型:
(1) It +be+形容词（obvious, true, surprising, wonderful, possible, likely, certain) +that 从句
(2) It + be +过去分词(said, reported, thought, expected, decided, announced,suggested等)+that从句
(3) It + be +名词词组(a pity, a shame, good news, an honor,no wonder等)+that从句
(4)It+动词/动词短语(seem, appear, happen, matter, turn out, occur to等)+that 从句
Translate the sentences.
1. 你做的任何事都是正确的。
____________________________________________________
2. 手表属于谁是未知的。
____________________________________________________
3. 我们需要的是时间。
____________________________________________________
4. 大家相信善行会带给我们好运。
____________________________________________________
Translate the sentences.
1. 你做的任何事都是正确的。
____________________________________________________
2. 手表属于谁是未知的。
____________________________________________________
3. 我们需要的是时间。
____________________________________________________
4. 大家相信善行会带给我们好运。
____________________________________________________
Whatever you did was right.
Whom the watch belongs to is unknown.
What we need is time.
It is believed that good deeds will bring us fortune.
1. Match the sentence parts. （P53）
1. remains an unanswered question.
2. is an important topic for us to research.
3. is that these chemicals may even cause cancer.
4. these vegetables can even be planted without any soil through this new technology.
5. is the reason why some people prefer to live in the country rather than in the city.
A. What worries many people
B. That the lifestyle is slower and healthier
C. How we can find a suitable solution to produce sufficient food
D. When these wheat farmers will join this pilot experiment
E. It amazed all of us that
D
C
A
E
B
Discover useful structures: Subject clauses
Discover useful structures: Subject clauses
1
2
4
3
1. the fact that the vegetables look beautiful on the outside
2. the thing that she is unhappy about
3. the way that they are going to spend their retirement
4. the question whether they can live a healthy life
Discover useful structures: Subject clauses
What I have forgotten
is
It
Whose
has not
Make sentences using subject clauses with the help of the clues.
1. he said/reasonable
2. she will accept the invitation/not clear yet
3. the animals are moving to/not exactly known
4. you have recovered from your illness/a grat relief to us.
5. he has become distant recently/my concern
What he said is reasonable.
Where the animals are moving has not been exactly known.
That you have recovered from your illness is a great relief to us.
Whether she will accept the invitation is not clear yet.
It's my concern why he has become distant recently.
Rewrite the sentences using subject clauses
1. We wanted to know where he had lost the laptop.
2. The way in which he did the experiemnt was puzzling to other people.
3. Do they use too many chemical pesticides I worry about this most. Whether________
Where he had lost the laptop was what we wanted to know..
How he did the experiemnt was puzzling to other people.
Whether they use too many chemical pesticides worries me most.
1. ________ he will succeed is certain.
2. ________ he will go there is still a mystery.
3. ________ he said is not true.
4.________ will happen to the world is difficult to predict.
5.___________ we will go camping tomorrow depends on the weather.
6._______ will take the place of our original headmaster hasn’t been decided yet.
7._______ he gave up the chance of studying abroad is unknown.
8.________ we will have the picnic next week is being discussed.
9. ____________________________ he hid the money is to be found out.
10. ________will be chosen our new monitor is still unknown.
11. It is by no means clear_____ the president can do to end the strike.
12. It remains to be seen __________ the newly formed committee's policy can be put into practice.
13. _______ you need is a great teacher who lets you make mistakes.
1. Fill the blanks with the right words.
That
Whether
What
Where/When/How/Why
Who
whether
what
What
What
Whether
Who
Why
When/Where
Thanks