高中英语人教版 (2019)选择性必修 第二册Unit 1 Science and Scientists教学设计

导入新课

 leading –in

 (PPT1-6)

1. Read the quotes and find the clauses in them.

(1)Understanding science and pushing the boundaries of science is what makes me immensely satisfied. — Bill Gates

(2)The next major explosion is going to be when genetics and computers come together. — Alvin Toffler

(3)The doctor has been taught to be interested not in health but in disease. What the public is taught is that health is the cure for disease. — Ashley Montagu

(4)Research is what Tm doing when I don’t know what I’m doing. — Wemher von Braun

2. Point out the leading words and stress them.

Read the following sentences and underline the relative clauses.

To guide students to discover the law of language by themselves.

讲授新课

Dealing with PPT 7-8

1. Underline all the examples in the reading passage where noun clauses are used as the predicative. Then state their meaning and functions.

1. One theory was___________________

2. Another was_____________________

3. The truth was_____________________

2. Discover useful structures

Answer the following questions using the information from the reading passage as well as the predicative clauses.

EXAMPLE: What Was it that John Snow showed to the world?

What John Snow showed to the world was how cholera could be overcome.

1. What was Snow’s discovery in two particular streets in London?

Snows discovery in two particular streets in London was that___________________________________
2. What was Snow determined to find out during the 1854 outbreak of cholera in London?

What Snow was determined to find out was why

___________________________________________

3. What were the exact places(Snow marked on the map? )

The exact places Snow marked on the map were where______________________________________

4. What was the finding that Snow announced?

Snow’s finding was that_____________

Answers: 1. more than 500 people died in ten days.

2. the cholera outbreak was so severe in the two particular streets

3. all those who died had lived

4. the pump water carried cholera germs.

3. Fill in a suitable word to complete the sentence             

1. What John Snow showed to the world was      cholera could be overcome.

2. Snow’s discovery in two particular streets in London was      the cholera outbreak was so severe that more than 500 people died in ten days.

3. What Snow was determined to find out was

      the outbreak could have caused over 500 deaths within ten days.

4. The exact places Snow marked on the map were     all the dead people had lived.

5. Snow’s finding was       it was the pump that was to blame for the spread of cholera.

Answers: how, that, why, where, that

4. To sum up:

1. What are the leading words of the predicative clause?

2. How should we determine the leading word of a predicative clause?

Answers: 1. how, that, why, where. . .

2. According to the structure of the clauses. . .

To name the two types of clauses and state their functions.

To make a study of the grammar rules

Rewrite the sentences using predicative

clauses.

To summarize grammar rules by observing and discussing.

To find out the grammatical features of these sentences.

课堂练习

Practice: PPT15-23

Fill in the blanks with leading words.

1. (2020·湖南长郡下学期试题)Having a positive attitude and making full use of the benefits that the new sort of competition brings to us are    really counts.

2. (2019·豫北名校联考)The most  pleasant thing of the rainy season is            one can be entirely free from dust.

3. (2020·安徽师大附中试题)She is        is known as a noisy person -she is always dying to know what’s going on in others’ lives.

4. (2019·辽宁八校联考)This is            my father has taught me -to always face difficulties and hope for the best.

5. (2020·河北邢台八中试题)The question is  ________the two countries can reach agreement at the conference.

6. (2020·全国2. 语法填空. 改编)This is  ________decorating with plants, fruits and flowers carries special significance.

7. (2018·江苏, 21)By boat is the only way to get here, which is ________we arrived.

8. (2018·北京, 11)Without his support, we wouldn’t be ________we are now.

Answers: what, that, what, what, whether, why, how, where

Grammar Rules:

that 和what 的比较

9. The truth is         the fog is too thick for the bus to run that far.

10. As you know, reading is _______ I really love, both for fun and knowledge.

11. That fact is          more than seventy percent of the earth’s surface is covered.

12. What I want to do is          I can go up to him and thank him.

13. He has become ________ he wanted to be ten years ago.

Answers: that, what, that, (that), what

注意：连接词that一般不能省略，但当主句中含动词do的某种形式时，that可以省略。

Choose the best answer which suits the blanket from A、B、C and D.

14. The question is          we can finish our work by tomorrow evening.

A．if  B．whether     C．when  D．That

whether /if的区别：if 与whether均意为“是否”，但引导表语从句时，只能用whether, 不能用if。

15. That is           I don’t like going abroad.

A．because B．that C． which  D．What

because引导表语从句, 常用结构：This/That/It is/was because. . .

16. The reason is          he got up late.

 A. why B. what C. that D. because

reason做主语或主语中包含事件的起因时, 后面的表语从句表示原因时要用that来引导, 而不用because。

Answers: BAC

why和because引导的表语从句：

16. I was angry. That was        he didn’t understand me.

我生气是因为他不理解我。(表语从句强调原因)

17. That’s           he got fired from that firm.

那正是他被公司解雇的原因。(表语从句强调结果)

Fill in the blanks with leading words.

18. (全国新课标I卷) Besides, table manners are

      you should pay attention to.

19. (北京卷)That’s            I think the trip along the Yangtze will be a better choice.

20. (福建卷)What’s important is         we should stick at it.

21. Li Lei is now in a new jacket. He looks       he

were an American boy.

Answers: what, why, that, as if

 Grammar Rules

To name the predicative

clause and state its function.

To make a study of the

grammar rules, especially the leading words and discover the methods to form the clauses.

Distinguish the similar structures to make their ability improved.

To summarize grammar rules by observing and discussing.

To give students  detailed and concrete situations.

To find out the grammatical features of these sentences.

课堂活动

PPT24-28

Discussion 1：

David is talking to Maria about their scientific research project. First complete David’s lines (A-E, using the words in the box. Then put David’s lines in the correct order and practice the conversation.

as if   that   what   who  when How why whose  which  whether  what

A: Absolutely! You may not believe it, but that was _____happened at the initial stage of our group’s research on developing a vaccine for malaria.

B: Yes, it is. And it seemed________ all the theories were useful, but the fact was______ we couldn’t persuade one another that one theory was better than another.

C: Exactly The problem was not about______________ all our theories were equally good, but in deciding. ____________theory to depend upon.

D: We realised that what we cared about was not_______________ aspect we needed to develop a theory in, but rather _________________we can reduce the cost of a vaccine without reducing its effect!

E: You’re right. At last, we became focused on the key issue, which was ___________we had to Cary out the research in the first place.

Answers: what, as if, that , whether, whose, which, how,

why

Discussion 2：

David is talking to Maria about their scientific research project. First complete David’s lines (A-E, using the words in the box. Then put David’s lines in the correct order and practice the conversation.

Maria: This mix of theory and data is one of the key characteristics of what we call science.

David: _______

Maria: With your theoretical framework?

David: __________________

Maria: Deciding on a theory is definitely of critical importance.

David: _________________

Maria This was when you should have calmed down and got down to doing some sold work.

David: _________________

Maria: So what happened in the end?

David: __________________

Discussion3:

Work in groups. Answer the questions using predicative clauses according to the passage above. Then share them with your group members.

What was David’s group’s research?

(David’s group’s research was. . . )

What was the problem?

(The problem was . . .  )

What was the key issue?

 (The key issue was . . . )

What did they care about?

 (What they cared about was . . . )

Answers:

David’s group’s research was that they wanted to develop a vaccine for malaria.

The problem was that they had to decide which theory to depend upon.

The key issue was why they had to carry out the research in the first place.

What they cared about was how they could reduce the cost of a vaccine without reducing its effect.

Individual practice ,

combined with group work.

Group work to use the grammar of this period.

Using general exercises, adding the difficulty gradually on the basis of the dialogue to encourage students to master grammar rules and have some textual awareness.

课堂小结

Summary:

1. Guide students to discover grammar rules.

2. Help students experience the detailed grammar learning.

Homework:

Do the exercises 1 and 2 on page 62 of the workbook.

1. Read and try    to find two clauses and leading words and

sum up the grammar rules.

2. Make a comparison.

3. Multiple exercises.

4. Fill in the blanks with leading words.

1. To guide students to discover grammar rules by themselves.

2. To find out the grammatical features of these sentences.

To test students’ ability to analyse language point.

板书

S+V+P-----Predicative 表语

引导词