(共24张PPT)
Watch a video
Q1：What did you see in the video？
Q2：Which environmental problem is shown in this video？
Lead in
Global warming
2017/12/22
Unit 4 Global Warming
What do you know about global warming?
Pre-reading
Global warming is getting increasingly serious，which will not only threaten the existence of animals but also our human beings.
Look at the title and the structure of the article.
Newspaper B. Novel C. Magazine
Guess
Where does this article most
probably come from?
Fast reading
1
A title
2
An opening paragraph
3
Two graphs
4
Main text in two columns
The organization of the article:
Skim the title:
THE EARTH IS BECOMING WARMER – BUT DOES IT MATTER?
What is the main topic?
The earth. B. Global warming.
C. Becoming warmer doesn’t matter.
Reading skills : The main topic can be known according to the title.
(1)Who wrote the magazine article?
(2)What is the name of the magazine?
Sophie Armstrong
Earth Care
Tip: In English, some nouns begin with a capital letter(大写字母), such as names of people and places, titles of magazines, newspapers, stories and books, people’s titles(头衔), etc..
Read the opening paragraph and answer the questions.
Two graphs
Graph 1 shows that the earth is becoming ___________.
Graph 2 shows that the carbon dioxide in the atmosphere_____________________over the last 100 to 150 years.
warmer
increased/went up
Three parts：
I
II
III
Introduction
Body
Conclusion
Match the main idea of each part:
Explain how global warming comes about.
Two different attitudes among scientists towards the consequences of global warming.
Introduce the problem of global warming.
Leave a question-should we do nothing?
Part 1 (para 1)
Part 2 (para 2-4)
Part 3
(para 5)
Part 4
(para 6)
Careful reading
Read Part 2(Para 2-4) and answer:
How has global warming come about?
Due to the burning of ________ ________.
Some byproducts are called ____________ ________.
We add huge quantities of ________carbon dioxide into the atmosphere.
fossil fuels
“Greenhouse” gases
extra
Different attitudes
Dr Janice Foster
George Hambley
Scientists are debating over the possible effects of greenhouse gases. Please express their different opinions.
Part 3(Para.5)
Negative effects
Positive effects
Attitudes to the Rise
opinions
The _____ that the temperature increases by five degrees would be a ___________ and it could be very _______.
We should not worry about it. Any warming will be ____ with few bad _______________ _____________ It is actually a ________ thing.
trend
serious
mild
environmental
positive
JaniceFoster
George Hambley
catastrophe
consequences
Positive effects
Negative effects
Attitude are different
On the one hand
On the other hand
cause the sea level to rise
severe storms
floods
droughts
famines
the spread of diseases
disappearance of species
Positive effects
Negative effects
make plants grow quicker
crops will produce more
a greater range of animals
make life better
Attitude are different
The earth is becoming warmer, does it matter?
Discus ：What can we do about global warming?
Plant more trees.
Talk about global warming.
Turn off electrical appliances.
Clothes instead of heat.
Walk or ride a bike
Recycle; recycled materials.
Stop global warming
Parents or friends buy products that are made to save energy.
Love our planet!
Love life!
Start from every little bit to fight against global warming.
Thank You !
修文一中高二英语选修六导学案 U4 编号2 出题人：张靖宜 审题人：高二英语组
Unit 4 A Global warming
Reading 导学案
1.?Ability?Objects:?
1. Grasp some useful expressions and important sentences.
2. Understand the passage better by skimming and scanning.
3. To develop the students' reading ability by intensive reading.
4. To develop the students' speaking ability by free talking.??
2.??Moral?Objects:?
1. To get the students to love the earth.
2. To encourage the students to take actions to protect our earth.
Step 1 Lead in
Watch a short video and answer questions.
Q1: What did you see in the video?
_________________________________________________________________________________
Q2: Which environmental problem is shown in this video?
_________________________________________________________________________________
Step 2 Pre-reading
What do you know about global warming?
_________________________________________________________________________________
Guess：Look at the title and the structure of the article.
Where does this article most probably come from?
A. Newspaper B. Novel C. Magazine
Step3. While-reading
Task 1:Fast reading
1.Write down the organization of the article:
_____________________________________________________________
2.Skim the title and choose the main topic?
A The earth. B. Global warming. C. Becoming warmer doesn’t matter.
3.Skim the first paragraph and answer:
(1)Who wrote the article?________________________________
(2)What is the name of the magazine?________________________________
4. What is mainly discussed in the passage?
A. What has caused the global warming and whether it matters. B.What the global warming is.
C. How serious the global warming could be. D.What effects of the global warming will be.
5.Look at the two graphs and fill in the blanks.
Graph 1 shows that the earth is becoming ___________.
Graph 2 shows that the carbon dioxide in the atmosphere__________________over the last 100 to 150 years.
6.Skim the body part(7 paras) and match the main idea of each part:
Explain how global warming comes about.
Introduce the problem of global warming.
Leave a question-should we do nothing?
Two different attitudes among scientists towards the consequences of global warming.
Part 1 (para 1)
Part 2 (para 2-5)
Part 3(para 6)
Part 4(para 7)
Task 2 Careful reading
1.Read Part 2(Para 2-5) and answer:
How has global warming come about?
? Due to the burning of ________________ __________________.
? Some byproducts are called ________________ __________________.
? We add huge quantities of__________________ carbon dioxide into the atmosphere.
2.Read Para6and answer the questions.
What do Dr. Janice Foster and the scientist George Hambley think about the consequences of global warming? Do they have the same attitude about “greenhouse”gases?
Dr. Janice Foster: The_________ that the temperature increases by five degrees would be a ____________ and it could be very ___________.
George Hambley: We should not worry about it. Any warming will be ____ with few bad
Negative effects Positive effects
_______________________________. It is actually a ________ thing.
Step 4 Discussion
The earth is becoming warmer, does it matter? What can we do about global warming?
__________________________________________________________________________________________________________________________________________________________________________________
_________________________________________________________________________________________Homework分析下列句子的句子成分并翻译
1.All scientists subscribe to the view that the increase in the earth's temperature is due to the burning of fossil fuels like coal, natural gas and oil to produce energy.
_________________________________________________________________________________
2.It was a scientist called Charles Keeling who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997.
_________________________________________________________________________________
3.Others who agree with her think there may be a rise of several metres in the sea level, or predict severe storms, floods, droughts ,famines, the spread of diseases and the disappearance of species.
_________________________________________________________________________________
