Unit 5 Working the land Discovering Useful Structures 课件(共19张PPT)人教版（2019）选择性必修第一册
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| 名称 | Unit 5 Working the land Discovering Useful Structures 课件(共19张PPT)人教版（2019）选择性必修第一册 |  | |
| 格式 | pptx | ||
| 文件大小 | 6.9MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-10-22 20:49:38 | ||
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(共19张PPT)
Unit 5 Working the land
Discover useful structures
Subject clauses
By the end of the class, learners will be better able to
Identify subject clauses, choose proper leading words and arrange correct word order of subject clauses，and follow the rule of Subject-Predicate Agreement (主谓一致) when using subject clauses.
Use subject clauses to write a paragraph about Prof. Yuan Long ping’s good qualities and great achievements.
Learning Objectives
What does Prof. Yuan want to say to us
1.What concerned Yuan most while he was young
---What concerned Yuan most was that
.
2.What did he choose to study in college t
---What he choose to study was .
farmers often had poor harvests
agriculture
Review what we have learned in the reading and thinking part.
What part does the underlined part serve as in these two each sentence
1.What concerned Yuan most was that farmers often had poor harvests.
2.What he choose to study was agriculture.
Step1:Leading in
Subject
The subject clause
主语从句
1. He considered himself a farmer.
2. Yuan's innovation has helped to feed more people.
3. Using salty land in China for rice production was his latest vision.
4. How this could be done was a challenging question at the time.
结论1：（1）主语是句子说明的人或事物，一般放在____________.
（2）在句子中充当____________的从句就是主语从句。.
句首
主语
Activity1
Step2:Observe and Discover
Task1: Underline the subject in each sentence and tell us what the subject consists of
代词
名词
动名词
从句
Task2:Underline the subject clause and focus on the word order in it.
That Yuan Longping had realised his dream of seawater rice surprised the whole world.
Whether it was possible to develop the hybrid rice was in debate.
Who will solve the soil problem is unknown.
What Yuan Longping really cared about was not money or celebrity .
Which one is the best to expand output is not clear.
Where the hybrid rice can be planted is a question .
How we can find a solution to produce more food is an important topic.
主语从句的语序要用_________语序。
结论2：
陈述
Activity2
Step2:Observe and Discover
That Yuan Longping had realised his dream of seawater rice surprised the whole world.
Whether it was possible to develop the hybrid rice was in debate.
Who will solve the soil problem is unknown.
What Yuan Longping really cared about was not money or celebrity .
Which one is the best to expand output is not clear.
Where the hybrid rice can be planted is a question .
Activity3
Task3:Circle the leading words（连接词）of the subject clauses.
不缺成分
不缺成分
作主语
作宾语
作定语
作状语
连词类别 功能 引导词
从属连词
连接代词
连接副词
Summarise the leading words of subject clauses.
不作成分
that (无意义), whether (是否)
what, who, whom, whose, which
whichever, whoever, whatever
when, where, how, why
作主、宾、表、定语,均有各自意义
作状语,均有各自意义
结论3：主语从句连接词
如何确定连接词
从句是否缺成分？
缺成分
不缺成分
主、宾、表、定
who(主)， whom(宾)， what(主、宾、表)， which(定)， whose(定)， wh-ever
状语
when, where, why;how
that; whether
(是否or not)
学以致用
1. _________ can join in the sport meet is decided by the teacher.
2. __________ comes to the activity will receive a present.
3. he lives is’t known to anyone.
4. __________ he will join us or not makes no difference.
Who
Whether
Whoever
Where
3. Where the hybrid rice can be planted is a question.
It was in debate whether it was possible to develop the hybrid rice .
It is a question where the hybrid rice can be planted.
It is an important topic how we can find a solution to produce more food.
1. That Yuan had realised his dream of seawater rice surprised the world.
2. Whether it was possible to develop the hybrid rice was in debate.
4. How we can find a solution to produce more food is an important topic.
Can you change the following sentences into another form
结论4：为避免头重脚轻，常用 it作形式主语置于句首，真正的主语从句后置。
Activity4
Step2:Observe and Discover
It surprised the world that Yuan had realised his dream of seawater rice.
Finish the following tasks and focus on it as the formal subject in subject clauses.
(1)_________________(很遗憾) we lost the match.
(2)_________________(这是事实) he cheated in the exam.
(3)_________________(据报道) 20 people were killed in the accident.
(4)_________________(建议) we should eat more vegetables and do more exercise.
(5)_________________(碰巧) I came into the office at that time.
☆结论 4: 用it作形式主语的句型
It is a pity that
It is a fact that
It is reported that
It happened that
It is suggested that
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).
主句的谓语动词，大多数使用_______ (单数？复数？)
由两个连接词引导同一个主语从句，谓动使用____ (单数？复数？)
主语为and连接的两个主语从句时，谓动使用____ (单数？复数？)
what在主语从句中做宾语时，谓动由______决定单复数 (主语？表语？)
单数
单数
复数
表语
is
is
are
is
are
结论 5: 主谓一致
主语从句连接词的使用
主谓一致
形式主语it结构
主语从句的语序
主语从句定义
Summary
Fill in the blanks and understand how the subject clauses are used.
Yuan Longping, the “father of hybrid rice”, considered himself a farmer at heart and devoted his life to millions of Chinese famers.
_________ concerned him most _________ _________ famers often had poor harvests. Therefore, he chose to study agriculture.
As a researcher, _________ Yuan realised was that larger fields were not the solution to poor harvests. Farmers needed to expand output in the fields.
________ this could be done was a challenging question. Yuan firmly believed that the answer could be found in the creation of hybrid rice. Yet, __________ it was possible to develop hybrid rice was in great debate. Overcoming enormous difficulties, Yuan succeeded in developing the first hybrid rice that could be used for farming in 1974.
What
was
that
what
How
whether
Brainstorm Yuan’s good qualities. The following points and expressions may help you voice your opinion.
What qualities do you think made Yuan Longping so successful
Column A Column B
It is important that... What impresses me most is that... What makes him a great...is that... That...is his most important quality. + he succeeded in...
he never gave up...
he was devoted to...
his determination to tackle the crisis of...
his intense effort to overcome...
his dream to develop...
his love and care for...
What impresses me most is... What makes him a great...is... Whether...depends on... Example:
S1: It is important that he never gave up trying despite many difficulties.
S2: What impresses me most is that Yuan Longping was dedicated to helping
feed so many people.
…
Write a composition with at least three subject clauses.
After studying the text "A Pioneer for All People", what are your thoughts Share your gains. Use at least three subject clause sentences.
Homework
Polish your writing and share it with us tomorrow.
Thank you!
Unit 5 Working the land
Discover useful structures
Subject clauses
By the end of the class, learners will be better able to
Identify subject clauses, choose proper leading words and arrange correct word order of subject clauses，and follow the rule of Subject-Predicate Agreement (主谓一致) when using subject clauses.
Use subject clauses to write a paragraph about Prof. Yuan Long ping’s good qualities and great achievements.
Learning Objectives
What does Prof. Yuan want to say to us
1.What concerned Yuan most while he was young
---What concerned Yuan most was that
.
2.What did he choose to study in college t
---What he choose to study was .
farmers often had poor harvests
agriculture
Review what we have learned in the reading and thinking part.
What part does the underlined part serve as in these two each sentence
1.What concerned Yuan most was that farmers often had poor harvests.
2.What he choose to study was agriculture.
Step1:Leading in
Subject
The subject clause
主语从句
1. He considered himself a farmer.
2. Yuan's innovation has helped to feed more people.
3. Using salty land in China for rice production was his latest vision.
4. How this could be done was a challenging question at the time.
结论1：（1）主语是句子说明的人或事物，一般放在____________.
（2）在句子中充当____________的从句就是主语从句。.
句首
主语
Activity1
Step2:Observe and Discover
Task1: Underline the subject in each sentence and tell us what the subject consists of
代词
名词
动名词
从句
Task2:Underline the subject clause and focus on the word order in it.
That Yuan Longping had realised his dream of seawater rice surprised the whole world.
Whether it was possible to develop the hybrid rice was in debate.
Who will solve the soil problem is unknown.
What Yuan Longping really cared about was not money or celebrity .
Which one is the best to expand output is not clear.
Where the hybrid rice can be planted is a question .
How we can find a solution to produce more food is an important topic.
主语从句的语序要用_________语序。
结论2：
陈述
Activity2
Step2:Observe and Discover
That Yuan Longping had realised his dream of seawater rice surprised the whole world.
Whether it was possible to develop the hybrid rice was in debate.
Who will solve the soil problem is unknown.
What Yuan Longping really cared about was not money or celebrity .
Which one is the best to expand output is not clear.
Where the hybrid rice can be planted is a question .
Activity3
Task3:Circle the leading words（连接词）of the subject clauses.
不缺成分
不缺成分
作主语
作宾语
作定语
作状语
连词类别 功能 引导词
从属连词
连接代词
连接副词
Summarise the leading words of subject clauses.
不作成分
that (无意义), whether (是否)
what, who, whom, whose, which
whichever, whoever, whatever
when, where, how, why
作主、宾、表、定语,均有各自意义
作状语,均有各自意义
结论3：主语从句连接词
如何确定连接词
从句是否缺成分？
缺成分
不缺成分
主、宾、表、定
who(主)， whom(宾)， what(主、宾、表)， which(定)， whose(定)， wh-ever
状语
when, where, why;how
that; whether
(是否or not)
学以致用
1. _________ can join in the sport meet is decided by the teacher.
2. __________ comes to the activity will receive a present.
3. he lives is’t known to anyone.
4. __________ he will join us or not makes no difference.
Who
Whether
Whoever
Where
3. Where the hybrid rice can be planted is a question.
It was in debate whether it was possible to develop the hybrid rice .
It is a question where the hybrid rice can be planted.
It is an important topic how we can find a solution to produce more food.
1. That Yuan had realised his dream of seawater rice surprised the world.
2. Whether it was possible to develop the hybrid rice was in debate.
4. How we can find a solution to produce more food is an important topic.
Can you change the following sentences into another form
结论4：为避免头重脚轻，常用 it作形式主语置于句首，真正的主语从句后置。
Activity4
Step2:Observe and Discover
It surprised the world that Yuan had realised his dream of seawater rice.
Finish the following tasks and focus on it as the formal subject in subject clauses.
(1)_________________(很遗憾) we lost the match.
(2)_________________(这是事实) he cheated in the exam.
(3)_________________(据报道) 20 people were killed in the accident.
(4)_________________(建议) we should eat more vegetables and do more exercise.
(5)_________________(碰巧) I came into the office at that time.
☆结论 4: 用it作形式主语的句型
It is a pity that
It is a fact that
It is reported that
It happened that
It is suggested that
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).
主句的谓语动词，大多数使用_______ (单数？复数？)
由两个连接词引导同一个主语从句，谓动使用____ (单数？复数？)
主语为and连接的两个主语从句时，谓动使用____ (单数？复数？)
what在主语从句中做宾语时，谓动由______决定单复数 (主语？表语？)
单数
单数
复数
表语
is
is
are
is
are
结论 5: 主谓一致
主语从句连接词的使用
主谓一致
形式主语it结构
主语从句的语序
主语从句定义
Summary
Fill in the blanks and understand how the subject clauses are used.
Yuan Longping, the “father of hybrid rice”, considered himself a farmer at heart and devoted his life to millions of Chinese famers.
_________ concerned him most _________ _________ famers often had poor harvests. Therefore, he chose to study agriculture.
As a researcher, _________ Yuan realised was that larger fields were not the solution to poor harvests. Farmers needed to expand output in the fields.
________ this could be done was a challenging question. Yuan firmly believed that the answer could be found in the creation of hybrid rice. Yet, __________ it was possible to develop hybrid rice was in great debate. Overcoming enormous difficulties, Yuan succeeded in developing the first hybrid rice that could be used for farming in 1974.
What
was
that
what
How
whether
Brainstorm Yuan’s good qualities. The following points and expressions may help you voice your opinion.
What qualities do you think made Yuan Longping so successful
Column A Column B
It is important that... What impresses me most is that... What makes him a great...is that... That...is his most important quality. + he succeeded in...
he never gave up...
he was devoted to...
his determination to tackle the crisis of...
his intense effort to overcome...
his dream to develop...
his love and care for...
What impresses me most is... What makes him a great...is... Whether...depends on... Example:
S1: It is important that he never gave up trying despite many difficulties.
S2: What impresses me most is that Yuan Longping was dedicated to helping
feed so many people.
…
Write a composition with at least three subject clauses.
After studying the text "A Pioneer for All People", what are your thoughts Share your gains. Use at least three subject clause sentences.
Homework
Polish your writing and share it with us tomorrow.
Thank you!