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(共20张PPT)
Unit 5
Working the land
Discover useful structures
-Subject Clause
To Dr.Yuan
When you plant the first rice,
what you give us is a field of hope;
When you plant the second rice,
what you have done is to keep all the Chinese people away from hunger;
When you plant the third rice,
what you pursue is to put an end to hunger in the whole world.
You love the land entirely,
just like I admire you passionately.
The Definiton
The Leading Words
The Important Points
The Application
Contents
Ⅰ
Ⅱ
Ⅲ
Ⅳ
Part 1
The Definition
Ⅰ
1.Yuan Longping considered himself a farmer.
2. He cared little for celebrity or money.
3. Living in a world without hunger was his vision.
4. How this could be achieved was challenging for him.
5. What concerned him most was how to boost yields in the field.
Activity 1 Circle the subject in each sentence.
Review and Explore
When a sentence serves as subject, we call it Subject Clause.
Part 2
The
Leading Words
Ⅱ
1. That Yuan Longping had realized his dream of seawater rice surprised the whole world.
2. Whether it was possible to develope the hybrid rice was a matter of great debate.
3. What Yuan Longping really cared about was not money or celebrity.
4. Which kind of rice Yuan Longping would grow was not sure at that time.
5. When Yuan Longping would retire to a life of leisure was never mentioned.
6. Where the hybrid rice can be planted is a question.
7. Why Yuan Longping developed hybrid rice was to feed more people.
Activity 2 Underline the subject clauses in these sentences and circle the leading words (引导词) of the subject clauses .
Observe and Analyze
Classify and Summarize
Leading words of subject clause
Subordinating conjunctions 从 属 连 词
Conjunctional Pronouns 连 接 代 词
Conjunctional Adverbs 连 接 副 词
that, whether
(无意义）
(是否）
（不作成分）
（作主、宾、表、定语）
（均有各自意义）
（作状语，均有各自意义）
what, which, who, whom, whose
when, where, why, how
Part 3
The
Important Points
Ⅲ
1. Whether could Yuan Longping search for a way to increase rice harvest was not sure at that time.
2. Whether Yuan Longping could search for a way to increase rice harvest was not sure at that time.
主语从句应使用_________语序。
陈述
The Important Points 1
Activity 3 Check if the following sentences are correct.
√
×
1. That Yuan Longping makes great contributions to the world is true.
2. Why Yuan Longping wanted to increase the rice output was that he saw hunger was a serious problem in many parts of the countryside.
3. Whether Yuan Longping can lead a comfortable life means very little to him.
The Important Points 2
Activity 4 Observe the verb in each sentence and summarize the verb form of subject clause.
主语从句作主语时，句子谓语一般用_______。
单 数
1. Yuan Longping is one of China’s most famous scientists / well-known
____________________________________________________________
2.60 percent of domestic rice consumption in China is from Yuan’s hybrid rice / estimate
____________________________________________________________
The Important Points 3
Activity 5 Make sentences using subject clauses with the help of the cues.
为了避免主语显得过长，可以用 作形式主语，把主语从句移到句子的末尾。
it
It is well-known that Yuan Longping is one of China’s most famous scientists.
It is estimated that 60 percent of domestic rice consumption in China is from Yuan’s hybrid rice.
It is ＋ ＋ that…
he/she is devoted to …
a fact
…
well-known
estimated
It 作形式主语的常见结构
said
reported
important
Part 4
The
Application
Ⅳ
1.Whether could Yuan Longping develop the hybrid rice was not clear then.
2. This is obvious that Yuan Longping is a determined person.
3. What we have learned from Yuan Longping are his devotion to his work.
4. That makes our country more powerful is that we have so many pioneers like Yuan.
Task 1 Circle and correct the mistake in each sentence.
Assess your progress
Task 2 Fill in the blanks in the passage by choosing the right leading words.
Assess your progress
Yuan Longping, the “father of hybrid rice”, considered himself a farmer at heart and devoted his life to millions of Chinese farmers.
concerned him most was that farmers often had poor harvests. Therefore, he chose to study agriculture.
As a researcher, ______ Yuan realized was that large fields were not the solution but 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. Having overcome enormous difficulties, Yuan succeeded in developing the first hybrid rice in 1973.
What
what
How
whether
Task 3 Write a letter or prose poem(散文诗)to Dr.Yuan using as many subject clauses as you can.
Create your writing
Compulsory assignment: Finish and polish your writing after class.
Optional assignment: Write a short paragraph to introduce a great person like Yuan Longping, using the subject clauses when necessary.
Assignment
Thank You

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