Words study Global warming Unit 4 莆田四中陈静. ① What are they? ② What are these buildings made of? ③ What’s the use? greenhouse / glass A greenhouse is used

Words studyGlobal warming

Unit 4

莆田四中陈静

① What are they? What ② are these

buildings made of?

③What’s the use?

greenhouse / glass

A greenhouse is used for_____________, especially during ____ weather.

Turn to Pre-reading 1,

Page 25.

Read & answer.

growing plants

cold

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_____ the heat from the

sunkeeps it from _________

____ the air

up

How does a greenhouse work?

trap…from…: keep sth in a place存住来自…的…

traps

escaping

heats

In the atmosphere surrounding the earth

there are gases, which are called

“greenhouse gases”.

methanewater vaporcarbon dioxide


carbon dioxide

Fossil Fuel(矿物燃料 )

coal

oil

gas

global warming● ● ● ● ● ●

produce

What do you think greenhouse gases do?

Greenhouse gases _____ the heat of the sun and therefore ______ the earth.

It is known as __________________.

Nowadays our earth is becoming _____________________.

greenhouse effect

trap

warm

warmer and warmer

Discussion

This is a This is a magazine articlemagazine article..How the text is organized?How the text is organized?

• A title• A first paragraph that runs across

the page and is in bold( 粗体，黑体 )• The main text is in two columns• Writing styles: narrative writing;

argumentative writing; expository writing; practical writing


What is mainly discussed in the passage?What is mainly discussed in the passage?A. What has caused the global warming A. What has caused the global warming and whether it matters.and whether it matters.B. What effects of the global warming B. What effects of the global warming will be.will be.C. How serious the global warming could C. How serious the global warming could be.be.D. What the global warming is.D. What the global warming is.

SkimmingSkimming

Reading tips — skim the title and Para 1: Title: THE EARTH IS BECOMING WARMER – BUT DOES IT MATTER?Para 1: … how has this come about and does it matter?

★★


Part 1.

Part 2

Part 3

Part4

Para 1

Para(2-5)

Para7

Scanning

Para6

A.List two different attitudes

among scientists towards

global warming.B.Introduce the issue of global warming.

C.Illustrate how global warming comes about.

D.It's up to readers to think and decide whether people should do something about global warming or not.


Para 3

1.How do human affect the earth warming up?

Human burn fossil fuels like coal, natural

gas and oil to produce energy.2. What is greenhouse gases?

The byproducts of the process of producing

energy, the most important one is carbon

Dioxide.

Careful Reading


Para 4. the levels of carbon dioxide have

increased greatly over the last 100 to 150 years

1.Who made accurate measurements of the

amount of carbon dioxide?

2. How much?

Para 5. How high will the temperature go?


Tip: You can know somebody’s opinion through understanding hisor what he said.

What do Dr. Janice Foster and the scientist George Hambley think about the results of global warming?

Do they agree with one another?

quotations(quotations( 引引言言 ) )

Para 6Para 6


Dr. Janice Foster thinks the effects of global warming could be very serious.George Hambley thinks global warming will be mild with few bad environmental consequences.

They They don't agreedon't agree with each other. with each other.

Para 6Para 6


Does global warming matter?

Positive effects

Negative effects

1. cause the sea level to rise

2. severe storms3. floods4. droughts5. famines6. the spread of

diseases7. disappearance of

species

Positive effects

Negative effects

1. cause the sea level to rise

2. severe storms3. floods4. droughts5. famines6. the spread of

diseases7. disappearance of

species

Positive effects

Negative effects 1. make plants grow

quicker2. crops will

produce more3. a greater range of

animals4. make life better


Divided part Writing techniques

( Paragraph 1 ) Raising a question

Expository Writing


Divided Part Writing Techniques

(Paragraphs 2-5 )Giving examples,

using graphs,

explanation, quoting,

using numbers.


(Paragraphs 6 ) Giving examples,

making contrast,

quoting.


(Paragraph 7 )

Using a question

To leave readers to think over the issue


Idea-sharingIdea-sharing

What should we do in face of global warming?

I think …In my opinion… As far as I am concernedIt is necessary …


Assignment Write a short passage about the solutions to global warming.

Prepare the language points of this passage and underline the important ones.

After remembering the vocabulary, do the exercises on Page 28.

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Writing techniques

Giving examplesExplanationMaking contrastRaising a questionusing graphsQuotingUsing numbers

Documents

Words study Global warming Unit 4 莆田四中 陈静. ① What are they? ② What are these buildings made of? ③ What’s the use? greenhouse / glass A greenhouse is used

Words study Global warming Unit 4 莆田四中陈静. ① What are they? ② What are these buildings made of? ③ What’s the use? greenhouse / glass A greenhouse is used