人教版（新课程标准）选修六Unit 4 Global warming Reading 课件（13张PPT）
文档属性
| 名称 | 人教版（新课程标准）选修六Unit 4 Global warming Reading 课件（13张PPT） |  | |
| 格式 | pptx | ||
| 文件大小 | 4.5MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2022-11-29 12:28:02 | ||
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文档简介
(共13张PPT)
What
How
Why
Unit 4 Global Warming
The earth is becoming warmer -- but does it matter
From a magazine: Earth Care
A lead-in paragraph to lead into the topic and give an overview
pictures
/graphs
/quotes
Dr Janice Foster explains: “... ”
She says, “... ”
Hambley states, “... ”
Tip: We can often get the main idea of a magazine article by glancing at the title, the lead-in paragraph, and the graphs/pictures /quotes.
Sophie Armstrong
to support the idea by providing solid evidence so as to make the article more scientific and convincing
The earth is becoming warmer. / Global warming
How has this come about
Does it matter
Topic
/Phenomenon
Causes
Effects
Solutions
Title
+
A lead-in paragraph to lead into the topic and give an overview
Unit 4 Global Warming
Attitudes
F
1 F≈______C
。
。
0.6
It probably does not seem much to you or me, but it is a rapid increase when compared to other natural changes.
Topic
/Phenomenon
The earth is becoming warmer. / Global warming
Statement + A graph
During the 20th century the temperature of the earth rose about one degree Fahrenheit.
40 years 55ppm↑
20 years 40ppm↑
Causes
Went up from around 315 ppm to around 370 ppm
concentration
Who made the accurate measurements
amount
It was Charles Keeling who …
315
370
Para. 2-5
(1) Why What’s the phenomenon
(2) What role does CO2 play in the phenomenon
(3) Where are quantities of extra CO2 from
(4) What is to blame for global warming
(5) Why is CO2 amount increasing so quickly
The temperature increase depends on the rise of carbon dioxide amount.
a natural phenomenon
greenhouse gases trap heat from the sun to warm the earth
We need necessary amount of greenhouse gases and natural greenhouse effect to warm the earth, without which the earth would be about 33 C cooler.
There is no doubt that it is human that is to blame for global warming.
。
The burning of fossil fuels to produce energy adds quantities of extra CO2 so that more heat tends to be trapped, causing the global temperature to go up.
1-1.5 ~~ 5
Negative
Positive
plants grow quicker
crops produce more
a greater range of animals
on the one hand
(Dr Foster)
on the other hand
(George Hambley)
lead to a catastrophe
be mild with few bad consequences and make life better
Para. 6-7
a rise in the sea level
storms, floods, droughts, famines
the spread of diseases
the disappearance of species
▲
▲
▲
▲
▲
▲
▲
Scientists’ attitudes
Does it matter
Effects/Attitudes/Solutions
Para. 7
Greenhouse gases continue to build up in the atmosphere. Even if we start reducing the amount of greenhouse gases, the
climate is going to keep on warming for decades or centuries.
No one knows the effects of global warming. Does that mean we should do nothing Or, are the risks too great
The earth is becoming warmer -- but does it matter
Solutions
To encourage readers' reflection
Problem
The author explores the topic of global warming objectively with a clear structure and solid evidence like graphs, data, and quotes of scientists so as to deepen readers’ understanding and encourage readers’ reflection about global warming and whether we should do something.
Do nothing
VS.
Do something
Although we can’t really know the effects of global warming, when faced with the possible great risks, it's better to do than never. We can’t take a risk of ruining our children’s future.
The key is to___________________
Turn electrical appliances off when they are not in use
Save energy----add less CO2
Drive less; walk or ride bikes more
Recycle some material (imporve waste sorting)
Buy things that are economical with energy
Plant trees ----absorb more CO2
What can we do about global warming
reduce the amount of CO2
Reuse, recycle and reduce.
Be an educator.
As an educator, now you want to write a proposal on behalf of the Students’ Union about what we students can do about global warming.
Dear fellow students,
As we know, (fact + cause + possible effect). Now
on behalf of..., I appeal to you to.../ I suggest that ...
To start with,/ Above all, ... (proposals/suggestions)
(A good conclusion)
Students’ Union
Thank you!
What
How
Why
Unit 4 Global Warming
The earth is becoming warmer -- but does it matter
From a magazine: Earth Care
A lead-in paragraph to lead into the topic and give an overview
pictures
/graphs
/quotes
Dr Janice Foster explains: “... ”
She says, “... ”
Hambley states, “... ”
Tip: We can often get the main idea of a magazine article by glancing at the title, the lead-in paragraph, and the graphs/pictures /quotes.
Sophie Armstrong
to support the idea by providing solid evidence so as to make the article more scientific and convincing
The earth is becoming warmer. / Global warming
How has this come about
Does it matter
Topic
/Phenomenon
Causes
Effects
Solutions
Title
+
A lead-in paragraph to lead into the topic and give an overview
Unit 4 Global Warming
Attitudes
F
1 F≈______C
。
。
0.6
It probably does not seem much to you or me, but it is a rapid increase when compared to other natural changes.
Topic
/Phenomenon
The earth is becoming warmer. / Global warming
Statement + A graph
During the 20th century the temperature of the earth rose about one degree Fahrenheit.
40 years 55ppm↑
20 years 40ppm↑
Causes
Went up from around 315 ppm to around 370 ppm
concentration
Who made the accurate measurements
amount
It was Charles Keeling who …
315
370
Para. 2-5
(1) Why What’s the phenomenon
(2) What role does CO2 play in the phenomenon
(3) Where are quantities of extra CO2 from
(4) What is to blame for global warming
(5) Why is CO2 amount increasing so quickly
The temperature increase depends on the rise of carbon dioxide amount.
a natural phenomenon
greenhouse gases trap heat from the sun to warm the earth
We need necessary amount of greenhouse gases and natural greenhouse effect to warm the earth, without which the earth would be about 33 C cooler.
There is no doubt that it is human that is to blame for global warming.
。
The burning of fossil fuels to produce energy adds quantities of extra CO2 so that more heat tends to be trapped, causing the global temperature to go up.
1-1.5 ~~ 5
Negative
Positive
plants grow quicker
crops produce more
a greater range of animals
on the one hand
(Dr Foster)
on the other hand
(George Hambley)
lead to a catastrophe
be mild with few bad consequences and make life better
Para. 6-7
a rise in the sea level
storms, floods, droughts, famines
the spread of diseases
the disappearance of species
▲
▲
▲
▲
▲
▲
▲
Scientists’ attitudes
Does it matter
Effects/Attitudes/Solutions
Para. 7
Greenhouse gases continue to build up in the atmosphere. Even if we start reducing the amount of greenhouse gases, the
climate is going to keep on warming for decades or centuries.
No one knows the effects of global warming. Does that mean we should do nothing Or, are the risks too great
The earth is becoming warmer -- but does it matter
Solutions
To encourage readers' reflection
Problem
The author explores the topic of global warming objectively with a clear structure and solid evidence like graphs, data, and quotes of scientists so as to deepen readers’ understanding and encourage readers’ reflection about global warming and whether we should do something.
Do nothing
VS.
Do something
Although we can’t really know the effects of global warming, when faced with the possible great risks, it's better to do than never. We can’t take a risk of ruining our children’s future.
The key is to___________________
Turn electrical appliances off when they are not in use
Save energy----add less CO2
Drive less; walk or ride bikes more
Recycle some material (imporve waste sorting)
Buy things that are economical with energy
Plant trees ----absorb more CO2
What can we do about global warming
reduce the amount of CO2
Reuse, recycle and reduce.
Be an educator.
As an educator, now you want to write a proposal on behalf of the Students’ Union about what we students can do about global warming.
Dear fellow students,
As we know, (fact + cause + possible effect). Now
on behalf of..., I appeal to you to.../ I suggest that ...
To start with,/ Above all, ... (proposals/suggestions)
(A good conclusion)
Students’ Union
Thank you!