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新人教选修6


Unit 4 Global Warming
Save the earth!

Warming up – I ( 3m )

Work in groups ---list things as required :
1. Things that use energy around us or at any other places,( ie. light)

2.Sources of energy (ie. coal)

Things that use energy around us or at any other places:
In a house

Things that use energy

Sources of energy

lights television cassette player computer fridge stove washing machine hairdryer video recorder

coal oil natural gas wind(power) sun(solar energy) water(hydro-electric power) the sea ( tidal energy) uranium(nuclear energy) plant waster(biomass energy)

Warming up – II ( 5 m )

Windmills, renewable.

What? Renewable?

A coal power station , non-renewable.

What? What kind? Renewable?

An oil refinery(精炼厂), non-renewable.

What? What kind? Renewable?

A nuclear power plant, non-renewable.

What? What kind? Renewable?

A hydro-electric dam, renewable.

What? What kind? Renewable?

Geothermal (地热的) Energy Plant

Non-renewable
? ? ? ? Coal Oil Natural gas Uranium

Renewable
? Wind (wind power) ? Sun (solar energy) ? Water (hydroelectric power) ? Plant waste (biomass energy) ? Hot springs or geysers (geothermal energy) ? The sea (tidal energy)

Fossil fuels

What are fossil fuels?
? Ancient animal and plant material below the surface of the earth with a high carbon content, such as coal, oil and natural gas, which can be burnt to produce energy. Also known as nonrenewable energy because once they are used they have gone forever; they cannot be renewed.

Pre-reading ( 3m )

What about the weather?
9℃ / 14℃

We need…

The sun.

How about the plants?

If lack of solar energy, the plants…

Greenhouse

Greenhouse gases!
? What are greenhouse gases? ? What’s greenhouse effect?

Let’s see the following picture about it.

Reading

Global Warming

Reading I –scanning (5m)

Read the passage again to find out the answers to the questions in Ex.1

1.Who wrote the magazine article? What is the name of the magazine? → Sophie Armstrong, Earth Care. 2.What are the names of the three scientists mentioned in the article? → Dr Janice Foster, Charles Keeling, George Hambley.

3. What do they think about global warming? Do they agree with one another? → There are some very different attitudes among scientists towards this issue. Some think the effects will be terrible, while some others believe that we should not worry about it.

4. What are the two graphs about?
→ The first graph shows the temperature increase of one degree Fahrenheit between 1860 to 2000. The second graph shows the carbon dioxide content in the atmosphere from 1957 to 1977. 5. What is the main topic of the article? → Global warming / the warming of the earth

Reading II-skimming (5m)

Read the passage carefully and judge whether the statements are true or false?

T

T

F

T

T

F

Reading III-detailed reading (8m)

How many parts can the text be divided into? Tips: Part 1 (para __) Part 2 (para ___ to ___) Part 3 (para ___ to ___) Part 4 (para ___ to ___)

Reading IV (3m)

Choices.

〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓

1. Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1977? B A. Dr. Janice Foster. B. Charles Keeling. C. George Hambley. D. Sophie Armstrong.

〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓

2. "But there are some very different attitudes among scientists towards this issue.“ "Issue" here means the same as the one B in________. A. I bought the new stamp the day of its issue. B. They are talking about one of the key issues in the election campaign. C. The government is expected to issue a statement about the election. D. The magazine has 12 issues each year. 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓

〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓

3. The author probably agrees that ________ D A. actually global warming is good for man. B. we should do nothing about the global warming. C. catastrophes will happen if the globe keeps on warming. D. a lot remains to be found out about the effects of global warming.
〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓

Reading V (4m)

The different ideas between Dr. Janice Foster & George Hambley Dr. Janice Foster George Hambley

Carbon dioxide has caused the global temperature to go up __________. An increase of five degrees would be a catastrophe ____________ and could be Very serious ______________.

More carbon dioxide is a __________ thing, positive which makes crops __________ and will produce en- courage ____________________. a greater range of animals

Summary

Skim over the passage, and tell what you have learnt in class.

Try to talk in general terms rather than in details.

eg: I learnt that the earth is becoming warmer.
I learnt that global warming could have terrible effects on the environment.

….

Debate
A A : We shall do
something about global warming.

B

B: We shall do
nothing about global warming.

Assignment
1.Read the passage again and review the new words and expressions. 2.Prepare the debate in groups.

3.Surf the Internet for more information about global warming.

Unit 4 Global Warming
Save the earth!

强调句型

强调句型,你掌握了吗?

一、

It is/was+ 被强调部分 分

+ that+剩余的部

被强调部分是人 who/whom/ that
+剩余的部分 注意 (被强调部分是:主语,宾语,表语或状语) 1. 强调句的连接词一般只用 that ; 强调人时, 可用who (主语) 或 whom (宾语). 2. 强调句的时态一般为“It was+…+that” 3. 强调句的一般疑问句句型:Is / Was +it +所强 调的部分+that / who/ whom? 4. 强调句的一般疑问句句型:疑问词 +所强调的 部分+that / who/ whom?

1. 我是在街上遇见她的父亲的。(强调在街上) It was in the street that I met her father. 2. 你是8点开始工作的吗?(强调时间) Was it at eight o’clock that you began to work? 3. 正是因为她病了,他们才没见她做这项工作。 Because she was ill, they didn’t ask her to do the job. →It was because she was ill that they didn’t ask (强调原因) her to do the job. 4. 他为什么不能回答这个问题? Why was it that he couldn’t answer the question.

判断是否是强调句是,可把 It is / was …that 去 掉,剩余部分在不增减任何词的情况下还是 一个完整的句子,那么这种句子是强调句。

It was in the street that I met her father. →In the street I met her father. It was because she was ill that they didn’t ask her to do the job.
→Because she was ill, they didn’t ask her to do

the job.

二、 not ... until ... 的强调形式: It is not until + 被强调部分 + that ... “直到…才…”, 主要用于强调时间状语的强调句型。
I didn't realize she was a famous film star until she took off her dark glasses. → Not until she took off her dark glasses did I realize she was a famous film star. → It was not until she took off her dark glasses that I realized she was a famous film star.

三、 句子谓语 的强调手段: do / does / did + 动词原形 e.g 我的确相信他是老实人。
I do believe that he is an honest man. 他们昨天的确去看过你,但没见到你。 They did go to see you yesterday, but failed to meet you.

四、 What +从句+ is / was …
是名词从句结构,常用来强调主语、宾语。 所叙述的是现在或者将 What +从句 is … 来发生的事情 所叙述的是过去发生的 What +从句 was … 事情 e.g他最希望的是成为一名飞行员。(强调宾语) What he wishes most is to become a pilot.

What +从句+ is / was … 使我最感兴趣的是那美丽的风景。 (强调主语)
What interested me most was the beautiful scenery. 给予我们鼓励的是他为我们树立的榜样。(强调 主语) What encouraged us was the example he set for us.

巩固练习:

1.It was ___ he said ____disappointed me. A. what ; that B. that; that C. what; what D. that; what 2. Is it in the factory _____ this type of cars are produced? A. which B. where C. that D. / 3. Is it the factory______ this type of cars are produced ? A. which B. where C. that D. /

4. _____ on Monday night that all this happened? A. Is it B. It is C. Was it D. It was 5. It was _____ the old worker came that we _____ the experiment. A. until; didn’t begin B. not until; began C. until began D. not until; didn’t begin 6. It is I ____ singing in the garden. A. who are B. who is C. that am D. that is

7. ---Why didn’t you answer when I spoke to you in the street this morning? ---I ___ but you didn’t hear me. A. did answer B. didn’t want to answer C. couldn’t answer D. was too busy 8. It is in the west of China _____ there is no doubt _____it is going to rain tomorrow. A. where; whether B. that; that C. that; whether D. where; that 9. It was 1969___ the American astronauts succeeded in landing on the moon. A. that B. when C. on which D. which

10. It was the training _____ he had as a young man ____made him such a famous writer. A. when; that B. that; when C. that; who D. that; that

高考链接
1. It was about 600 years ago ______ the first clock with a face and an hour hand was made. (NMET 1997) A. that B. until C. before D. when A 2. It was only when I reread his poems recently _____ I began to appreciate their beauty. (NMET 1998) A. until B that B. C. then D. so

3. It is these poisonous products ______ can cause the symptoms of the flu, such as headache and aching muscles. (NMET 2003上海) A.who B. that C. how D. what B
4. Why! I have nothing to confess. _____ you want me to say? (NMET 2004上海) A. B. What it is that A What is it that C. How is it that D. How it is that

5. It was ______ back home after the experiment. (NMET 2004湖北) A. not until midnight did he go B. until midnight that he didn’t go C. not until midnight that he went C D. until midnight when he didn’t go 6. It was with great joy ______ he received the news that his lost daughter had been found. (NMET 2004福建) A. because B. which C. sinceD that D.

Assignment

Review the grammar and then finish the exercises on P29.

Unit 4 Global Warming
Save the earth!

What can we do about global warming?

Summary
We should do something about global warming. Because it could have many negative effects on the earth. With the temperature increasing, the polar ice caps eventually would melt, causing sea levels to rise by several meters. Coastal and low-lying cities would be submerged. Some scientists predict severe storms, droughts, famines, the spread of diseases and the destructions of species.

WHAT CAN WE DO ABOUT GLOBAL WARMING?
What shall we do in our daily life?

Task 1:
Skim the first letter, and answer the questions below: 1. Who is the writer?

2. What is the purpose of the email? / What are the two concerns of the email?

1. Who is the writer?
A student named Ouyang Guang.

2. What is the purpose of the letter? / What are the two concerns of the letter?
① His opinion that, as an individual, he can have no effect on environmental problems.
② Getting some suggestions for what he can do about global warming ;

Task 2: Read the second email, and answer the question:
Do Earth Care agree with Ouyang Guang’s opinion that individuals can have no effect?

No, Earth Care dose not agree.

Task 3: Now scan the letter and list Earth Care’s suggestions in the chart on P30, and discuss whether you can carry out each suggestion. Give reason for you answers.

Earth Care’s suggestion

Can you carry it?

Reason

If you are not using electrical appliances, turn them off. If you’re cold, put on more clothes instead of turning up the heat. Motor vehicles use a lot of energy, so walk or ride a bike if you can. Recycle cans, bottles, plastics and newspapers and buy things made from recycled materials.

Earth Care’s suggestion

Can you carry it?
Yes Yes Yes

Reason
Save energy Save energy

Save energy

Yes

Save energy

Earth Care’s suggestion
Get your parents or friends to buy products that are made to save energy.
Plant more trees Talk with your family and friends about global warming and tell them what you’ve learned.

Can you carry it?
Yes Yes

Reason

Save energy

Plants absorb carbon dioxide from the air
Together, individuals can make a difference.

Yes

Reading task on 66 Clean up Your Butts and Bags Read Tom’s essay about litter. Make a summary for each paragraph, and then fill in the following table.

First para.

Point of view

First point of the Second para. argument Evidence Second point of the argument Evidence

Third para.

Fourth para.

Point of view

First para.

Point of view

Cigarette buts and plastic bags are a serious environmental problem.

First point Butts are small but are Second of the still bad for the para. argument environment.
Evidence

Evidence: 1.1600 billion cigarettes are smoked each year in China. Many of these become litter.

2.4.5 trillion butts are littered every year in the world.
3.Butts are ugly. 4.Butts contain toxic chemicals. These get into the water supply. These decrease the quality of the water and endanger living things. 5.Butts take up to 5 years to break down, so the toxic chemicals add up to a great amount.

Plastic bags are a danger Second to the environment. Third point of para. the argument Evidence 1.Plastic bags are made from non-renewable resources. If they are not recycled, these resources are lost to us. 2.In china, 2 billion plastic bags are used every day. 3.Plastic bags last from 20 to 1,000 years in the environment. ……

Fourth Point of para. view

The environment would be less polluted if we cleaned up cigarette butts and plastic bags. The best solution would be not to smoke or use plastic bags at all.

Assignment

In groups of four, make a poster for the school that tells the students various ways they can reduce the amount of carbon dioxide in the air.


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