新课标人教版高二上模块6Unit 4 Global warming Reading课件

(共42张PPT)
Unit 5
Global warming
----warming up and reading
graph
random
phenomenon
subscribe
fuel
quantity
tend
data
n. 图表; 坐标图
adj. 胡乱的; 任意的
n. 现象
vi. 同意; 捐赠; 订阅
vt. 签署 (文件); 捐助
n. 燃料
n. 量; 数量
vi. 趋向; 易于 vt. 照顾
n. 资料; 数据
Words preview
trend
catastrophe
flood
oppose
mild
consequence
state
range
n. 趋势; 倾向; 走向
n. 大灾难; 浩劫
n. 洪水; 水灾
vt. 反对; 反抗
adj. 温和的; 淡的
n. 结果; 后果; 影响
vt. 陈述; 说明
n. 种类; 范围
Words preview
come about
subscribe to
quantity of
go up
result in
be opposed to
even if
keep on
发生; 造成
同意; 赞成; 订购
大量的
上升; 增长; 升起
导致
反对……
即使
继续
Expressions preview
Warming-up
----- concerns about global warming
What the following names make you think of
Copenhagen, Denmark
Cancun, Mexico
Durban, South Africa
For 2009 climate summit(峰会)
For 2010 climate summit
For 2011 climate summit
-
There is a growing concern about the climate changes.
Extreme weather this year throughout the world.
Heavy snowfall has caused disruption across northern Europe, closing airports and bringing traffic to a stop.
Heavy snowstorm in Canada got freeways blocked and hundreds of cars and drivers were trapped on the way. The government had to send helicopters to save them.
Storms in Italy and Australia caused floods and debris flow, leaving thousands of people homeless.
4. Russia suffered the hottest weather for 10 centuries.
5. Floods caused the water in Indian River to rise to the highest of 100 years.
6. In China, some areas suffered droughts while others suffered floods and snowstorms.
What has cause this
Pre-reading
---- causes of global warming
What is it in the picture
It’s a greenhouse made of glass.
What is it used for
It’s used for growing plants, especially during cold weather.
How does it work
The air inside is warm because the glass traps the heat from the sun and keeps it from escaping. This makes the greenhouse heat up and so the plants can grow throughout the cold period.
Greenhouse gases!
What’s greenhouse gases effect
Greenhouse gases perform the same function as the glass in a greenhouse --- They trap the heat of the sun and keep the air surrounding the earth warm.
It is called the greenhouse effect.
What would happen if we trapped too much of heat in the greenhouse
What would happen if we trapped too much of heat on the earth
Reading
The earth is becoming warmer— but does it matter
Fast Reading
Glance at the article and answer the question.
It has a title, a first paragraph that is in bold, the main text in two columns, 2 graphs, two quotes引用，引号 .
What is the structure of a magazine like this and how is the text organized
2. What is the purpose of the paragraph that is in bold
To introduce the topic.
Questionnaires -I
1.What is the purpose of the title
To tell us the topic of Global warming
To illustrate(阐述) points by providing evidence.
3. What are the diagrams for
5.What are the two graphs about
Graph 1 shows the temperature difference on average from 1860 to 2000.
4.What is the main topic of the article
Global warming
Graph 2 is about the carbon dioxide content in the atmosphere from 1957 to 1997.
Sophie Armstrong
The name of the magazine is “Earth care”.
7.What are the names of the three scientists mentioned in the article
They are Dr.Janice Foster,Charles Keeling and George Hambley.
6.Who wrote the magazine article What is the name of the magazine
8.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.
It functions as a conclusion by asking the reader to reflect on the major theme of the text and to predict what might happen in the future.
9. What is the purpose of the last paragraph of the article
part Main idea of each part
Writing techniques
Part Ⅰ
Para.1
a debate over global warming
Part Ⅱ
Para.2-5
how global warming comes about
Part Ⅲ
Para.6
2 different attitudes among scientists towards global warming
Part Ⅳ
para.7
whether people should do
something about global
warming or not.
raising a question
giving examples,
using graphs,
explanation
making contrast
By giving examples
Using a question,
leaving readers to
think over the issue
Second reading
Third reading
Part. Ⅰ
What does “this” in the third line refer to
What’s the meaning of the word “explore”
A. to examine a problem carefully.
B. to answer a problem
C. to ask a problem
D. to visit somewhere
During the 20th century the temperature of the earth rose about one degree Fahrenheit.
A
Para. 2
What has caused global warming
Human activity.
2.Translate the whole paragraph 2 into Chinese.
毫无疑问，地球是在变暖，而地球变暖正式人类活动导致而成的，并非是一种无规律的自然现象。
1.What are the “greenhouse gases”
2.How does greenhouse effect come about
Some byproducts of the burning of fossil fuels, including carbon dioxide, methane and water vapour, the most important one of which is carbon dioxide.
Greenhouse gases trap the heat from the sun and therefore warm the earth
Para. 3
1.What do you think of the greenhouse effect
Greenhouse effect is necessary for us. But too many greenhouse gases will cause the globe to be too warmer.
Who found out the amount of
carbon dioxide in the atmosphere from 1957 to 1977
Dr. Janice Foster. B. Charles Keeling.
C. George Hambley. D. Sophie Armstrong.
2. Translate the last sentence into Chinese.
他发现，在这些年里，大气层的二氧化碳含量从315/1000,000 上升到370/1000,000.
B
Para. 4
Paraphrase the following sentence.
How high will the temperature increase go
2. Translate the last sentence into Chinese.
How many degrees will the temperature rise.
福斯特博士说，在今后的100年里， 全球变暖的量可能低到1~1.5摄氏度， 但是也可能高达5摄氏度。
Para. 5
The different ideas between Dr. Janice Foster & George Hambley
Dr. Janice Foster George Hambley
An increase of five degrees would be a __________
it could cause
___________________. More carbon dioxide is a ________ thing,
which makes crops ____________ and will encourage __________ __________________.
catastrophe
Severe storms, floods,
the spread of diseases and
positive
produce more
a greater range of animals
Para. 6
droughts, famines,
the disappearance of species.
D
1. Sophie Armstrong probably agrees that ______.
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.
Para. 7
2. What is Sophie Armstrong’s idea about global warming ______
A. positive
B. negative
C. objective
D. subjective
A
The temperature last century didn’t
seem to increase much.
2. Everyone believes that global warming is caused by the activities of humans.
3. Janice Foster believes that she can
measure the future global rise in
temperature.
True or false
T
T
F
4. The rise in carbon dioxide is causing
a steady increase in global warming.
5. George Hambley believes that global
warming will do good rather than
harm to the earth.
6. It is clear what the effects of global
warming will be.
T
T
F
Summary
Skim over the passage, and tell what you have learnt in class.
Try to talk in general terms概括地；一般地说 rather than in details详细地 .
eg: I learnt that the earth is becoming warmer.
I learnt that global warming could have terrible effects on the environment.
….
How has the global warming come about
①Human activity--- burning of fossil fuels.
② Greenhouse effect--- greenhouse gases--- we need those gases.
③ Huge quantities of extra carbon dioxide---from 1957 to 1997---from around 315 parts per million to around 370 parts per million.
What are the effects of global warming
④ Encourage a greater range of animals.
①The sea level to rise.
② Severe storms, droughts, famines, the spread of diseases, and destruction of species.
③ Make plants grow faster. Crops will produce more.
What can we do about global warming as individuals