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BOOK 6 Unit 4教学课件
发布日期:2019-04-23
 
Unit 4

 
 
 
 
 
 

 
 


 
 
 
 
 
 
 
 
Just look at this passage and try to work out where this passage may be from( a travel journal, a science magazine, a newspaper, an advertisement section……

Features of the article

 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

two graphs, (图表the main text in two columns, (栏) The title-a question;,

the paragraph on the top in bold (粗体), ...
                

 
Generally speaking, the paragraph on the top is a brief
_i_n_t_ro_d_u_c_t_io_n_ to the passage. It is called Editors Note.
 
 
 
 
Read the title and the Editor’s Note of this passage, then try to decide :
What is the main idea of this passage? Who wrote this article?

 
During the 20th century the temperature of the earth
 

rose about one degree Fahrenheit.

That probably does

 

not seem much to you or me but it. So how has

this

ome

 
about and does it matter? Earth Care’s Sophie Armstrong explores these questions. Topic sentence?

 
 
 
 
 
 
 
 

Para .1
Para. 2
Para. 3
 
 
Para. 4
Para. 5
Para. 6
Para. 7
An introduction to this article
 
 
 
It ‘s human activity that caused the global warming.
 
 
 
Whether does global warming matter?

 
 
 
 
 
 
Read para. 2- 5 and find out how the author proved the argument in the second paragraph: It s human activity that caused the global warming.


 
 

 
 


 
How does human activity cause the global warming ?
 

Human activity
(byproducts)
Green house gases, mostly CO2

 
 
 
 
 

The global temperature went up
extra carbon dioxide
Prevent the earth from getting to cold

 

Para 4-5

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Prove the argument

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Discuss in groups of four to three:
What methods did the writer use to make his argument more convincing ?

What methods did the writer use to make his argument more convincing ?
Charles Keeling found that between these years the carbon dioxide in the atmosphere went up from around 315 parts
to around 370 parts per million.
 
 
 
 
 
 
 
 
Dr. Janice Foster explains: “There is a natural phenomenon ….causing the global temperature to go up.”
All scientists subscribe to the view that the increase in the…
agree with

Para 6

 
 
 
 
 
 
Read Para. 6 and find out :
What are the different attitudes toward global warming?
Which scientist holds that opinion? Why do they think so ?



 
 
 
 

negative
 
The trend which increases the temperature by 5 degrees would be a catastrophe
 
positive We should not worry about
rise of sea level
 storms, floods, droughts and famines
 the spread of diseases
 the disappearance of species
plants grow quicker
 crops produce more

the high levels of carbon
 a greater range of animals…

dioxide …


 
 
 
 
 

What is the writer’s attitude towards the effects of global warming?

A. positive bjective C. negative

 


 
 
 
 
 
 


 
 
1. clothing 2.driving 3.eating 4.working
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1) Firstly, why not... ? If you do
this, ...
2) Secondly, you should/can... In this way, ...
3) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Thirdly, it would be a good idea if... /By doing this, ...

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Homework :Writing
Write down your suggestions about how I should help prevent global warming by starting from myself.
And send to me at 277806357@qq.com

 

Help me, help you, help everyone.

Return GREEN to the earth!

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