资源简介

(共36张PPT)
Unit 5 Discovering Useful Structures
主语从句
Subject clause
新人教版选择性必修一
Learning objectives
At the end of this class, you will be able to:
· identify and summarize the uses of noun clauses as subjects;
· use subject clauses to talk about what qualities
make a person so so successful.
Lead-in: What impressed you most about Yuan Longping
1. 简单句（一句一谓）
He succeeded in developing hybrid rice.
2.并列句（含and、but等并列连词）
He succeeded in developing hybrid rice,and it impressed me most.
3.主从复合句（含从句连接词/引导词）
That he succeeded in developing hybrid rice impressed me most.
Activity 1: Know the kinds of sentences
1.That he succeeded in developing hybrid rice impressed me most.
Activity 2: Observe and compare
S
V
2. It impressed me most that he succeeded in developing hybrid rice.
3. What impressed me most was his success in developing hybrid rice.
S
主语从句：在复合句中充当主语的从句
位于句首，作为整个句子的主语，有时
为了句子平衡，会后置并使用形式主语it。
V
That he succeeded in developing hybrid rice is a great contribution to the world.
It is well known that Yuan Longping was a man of simple tastes.
What we need to learn from him is his persistent spirit.
The book that tells Yuan's story is very inspiring.
Whether we can overcome food shortages is a global issue.
【即学即用】Judge and underline subject clause
S
S
S
S
主语从句本身结构完整，含有主语、谓语、宾语等。
Activity 3: translate and conclude
However, what concerned him most was that farmers often had poor harvests.
How this could be done was a challenging question at the time.
Whether it was possible to develop a hybrid of self-pollinating plants was a matter of great debate.
That he cared little for celebrity or money impressed everyone.
表示“所……的”（事物),主语
无实义，不做成分，只起连接作用，不可省略。
表示“是否”
保留疑问词意义，充当状语
【即学即用】Choose the suitable conjuctions
1.选择适当的连接词 (what, that, whether, how, why) 完成短文。
(1) ________ impressed people most about Yuan Longping was his devotion to his dream. (2) ________ he achieved was not for personal fame or wealth. In fact, (3) ________ he cared so little about celebrity made him even greater.(5) ________ his spirit will inspire future generations is beyond doubt.
2.翻译：(1)最让我感动的是他对土地的深深热爱。
(2)他是否能研发出海水稻在当时是未知的。
What
What
That
That
What moved me most was his deep love for the soil.
Whether he could develop "seawater rice" was unknown at that time.
what, who, whom, which
when, where, why, how
wh-ever
if
Dependent Clause
S + V
that
whether
wh- question words
S + V
S + V
Activity 4: Conclude the conjuctions
Activity 4: Conclude the conjuctions
类型 连接词 在从句中的作用
连接作用 词义 成分
从属连词 that 无 不充当
whether “是否” 不充当
连接代词 what “所…的事物/话” 主/宾/表语
who/whom 谁 who主whom宾
which “哪一个” 主/宾（有选择范围）
whose “谁的” 定语
连接副词 when/where/why/how 本身词义 状语
1. _________ the research centre is to be set up has not been decided.
2. ______ many countries still face food shortages remains a big problem.
3. ______ impressed me most was that the hybrid rice enabled farmers to expand their ouput greatly.
4. __________ the plan is to be carried out still needs discussing.
5. ______ the new chemical pesticide is effective remains to be seen.
6. ______ will join in the research teamwill be announced tomorrow.
7. ______ he quit his high-paying job is not difficult to understand. He wanted to start up his own business.
Whether/Where
That
What
Whether/When
Whether
Who
Why
【即学即用】Finish the exercises on p.58
做题原则：缺什么补什么
从句不缺成分不缺意思：that
从句不缺成分缺“是否”：whether
从句缺主、宾、表：what(什么)who(谁)
从句缺状语：when(何时)；where(何地)；how(如何)；why(为何)
从句缺定语：which(哪一个); whose(谁的)
What have I forgotten is that I have a test today.
Where did he lost his laptop was still puzzling to him.
Whose coat is it is still uncertain.
What I have forgotten
Whose coat it is
Activity 5: Correct and explore
注意：
从句用陈述语序
How he will get there does not matter.
When they set off has not been decided.
What you left are only several old books.
What you said is of great importance.
当一个句子的主语是从句时，该句子的谓语用 ________。
what引导主语从句时，谓语动词常与其后的名词作表语一致 ，且根据句子的语境而定。
单数
从句用陈述语序
谓语动词一般用单数
不能省略关联词
Practice: Match the sentence parts.
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 while keeping the environment safe
D When these wheat farmers will join this pilot experiment
E It amazed all of us that
Translate the completed sentences into Chinese.
1 When these wheat farmers will join this pilot experiment
remains an unanswered question.
这些小麦农户什么时候会加入预试验仍然不得而知。
2 How we can find a suitable solution to produce sufficient
food while keeping the environment safe is an important
topic for us to research.
如何能够找到一个合适的解决办法，在保证环境安全的同
时，生产足够的粮食，是一个需要我们研究的重要课题。
3 What worries many people is that these chemicals may even cause cancer.
令很多人担心的是，这些化学制品甚至可能导致癌症。
4 It amazed all of us that these vegetables can even be planted without any soil through this new technology.
令我们所有人惊讶的是，通过这种新技术，可以无土栽培这些蔬菜。
5 That the lifestyle is slower and healthier is the reason why some people prefer to live in the country rather than in the city.
有些人更喜欢住在乡下而非城市的原因是前者生活节奏更慢、生活方式更健康。
Read the passage and underline all the subject clauses.
Grandma has been complaining about the vegetables sold in the supermarket, which have been grown using chemical fertilisers. To her, that they look beautiful on the outside is obvious. However,what she is unhappy about is the lower nutritional value and reduced flavour. Now that both of my grandparents have retired from their jobs in the city, how they are going to spend their retirement is an important decision for them. Whether they can live a healthy life is the first thing they are considering. So they have made up their minds to move to the countryside, where they can live a green life.
What qualities do you think
make a person like Yuan Longping so successful
Activity 6: Have a discussion and prepare a presentation.
What impresses me most is that Yuan Longping has succeeded in helping to feed so many people. It is important that he never gave up, despite many difficulties. That he succeeded in
realising his dream is what makes him
great.
We wanted to know where he had lost the laptop.
Where _______________________ was what we wanted to know.
2. The way in which he did the experiment was puzzling to other people.
How ______________________ was puzzling to other people.
3. Do they use too many chemical pesticides I worry about this most.
Whether ________________________________ is what I worry about most.
he had lost the laptop
he did the experiment
they use too many chemical pesticides
Exercises: Rewrite the sentences using subject clauses（p.90）
4. People are happy to see that the living conditions and income of the farmers have improved a lot.
That ____________________________________________________ makes people happy.
5. We have not decided on the date for the sports meet yet.
When ________________________ has not been decided on yet.
the living conditions and income of the farmers have improved a lot
the sports meet will be held
Example
he thought / completely wrong
What he thought was completely wrong.
he said/ reasonable
________________________________________________
2. she will accept the invitation / not clear yet
________________________________________________
What he said seems reasonable.
Whether she will accept the invitation is not clear yet.
Exercises: Make sentences using subject clauses with the help of the cues.
3. the animals are moving to / not exactly known
_____________________________________________
4. you have recovered from your illness / a great relief to us
______________________________________________________
5. he has become distant recently / my concern
_____________________________________________
Where the animals are moving to is not exactly known.
That you have recovered from your illness will be a great relief to us.
That he has become distant recently is my concern.
What have I forgotten is that I have a test today.
2. Who left me these flowers are not clear to me.
3. This is obvious that students should prepare well for their future.
4. Who’s ticket this is has not been confirmed.
5. When the test will be given have not been decided.
I have
is
It
Whose
has
Exercises: Circle and correct the mistake in each sentence
1. Can we control pests without causing any ill effects This still remains a question. (Whether)
2. Agriculture is the foundaton of our country. This is well known. (It)
3. Some less-developed countries are suffering from food shortages. It is a serious problem in the world. (That)
4. Some herdsmen in Inner Mongolia fix electronic sensors to their cattle to monitor their movements. It is true that they are doing this. (It)
Exercises: Combine each pair of sentences
1. Whether we can control pests without causing any ill effects remains a question.
2. It is well known that agriculture is the foundation of our country.
3. That some less-developed countries are suffering from food shortages is a serious problem in the world.
4. It is true that some herds men in Inner Mongolia fix electronic sensors to their cattle to monitor their movements.
主语从句在写作中的常用句型
(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……
用it 作形式主语的结构
(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
写作中常用的主语从句句式
1. What impressed / embarrassed / excited me most was that .... 我印象最深刻/最尴尬/最兴奋的事儿是……
2.What is certain is that...可以确定的是...
3.What should be emphasized is that...应该被前调的是，....
4.It is known to us all that ... 众所周知，……
5.It is generally accepted / acknowledged / admitted / recognized/ that....人们普遍认为……
6.It’s likely that ... = The chances are that ...（表从） 很可能……
7. It’s a pity / shame that .... 令人遗憾/惭愧的是……
8. It’s an honor that.... ...是一个荣幸....
9. It is no wonder that .... 难怪……
10. It occurred to me that .... = It hit/ struck me that ... 我突然想起……
11. It turned out that .... 结果是……；证明是……；最后情况是……
12.It is clear / obvious that ... = It goes without saying that ... 显而易见……
13.It is necessary / important / essential that ... should +v. 原形 ……是必要的/重要的
14.It is said / reported / announced / believed that ...据说/据报道/据宣布/人们认为……
最让我印象深刻的是，我们团队在困难面前表现出的合作精神。
可以确定的是，这项社区清洁活动将对环境产生积极影响。
应该被强调的是，每位公民都有义务保护我们的传统文化。
应用文写作常用句型
What impressed me most was that our team showed a cooperative spirit in the face of difficulties.
What is certain is that this community cleaning activity will have a positive impact on the environment.
What should be emphasized is that every citizen has the duty to protect our traditional culture.
4. 众所周知，体育锻炼对学生的身心健康至关重要。
5. 人们普遍认为，阅读能开阔我们的视野。
6. 考虑到他的丰富经验，他很可能会在这次演讲比赛中获胜。
应用文写作常用句型
It is known to us all that physical exercise is essential for students' physical and mental health.
It is generally accepted that reading can broaden our horizons.
It is likely that he will win the speech contest, considering his rich experience.
1. 当我看到空荡荡的房间时，令我感到遗憾的是，我没能好好跟他道别。
2. 能被选中代表学校参赛，这真是一个荣幸。
3. 他之前做了那么多准备，难怪他能如此冷静地应对所有问题。
读后续写常用句型
When I saw the empty room, it was a pity that I hadn't said a proper goodbye to him.
It is an honor that I was chosen to represent my school in the competition.
He had made so much preparation beforehand, (so) it is no wonder that he could handle all the questions so calmly.
4. 正当我绝望时，我突然想起口袋里还有一把备用钥匙。
5. 我们原以为会迷路，但结果，那条小径直接通向了山顶。
6. 当他开始解释时，显而易见，他之前对我们撒了谎。
读后续写常用句型
Just as I was about to despair, it occurred to me that I had a spare key in my pocket.
We thought we would get lost, but it turned out that the path led directly to the mountaintop.
As he began to explain, it became clear/obvious that he had lied to us before.
7. 至关重要的是，我们应该立即采取行动来保护这些濒危动物。
8. 据说，那所古老的房子里藏着一个宝藏。
读后续写常用句型
It is essential that we (should) take immediate action to protect these endangered animals.
It is said that a treasure is hidden in that old house.
Thank you!

展开更多......

收起↑