选修六 Unit4 reading

According to the form of the article. Where can you most probably read this passage?
A. a novel B. a fairy tale C. a student’s composition D. A magazine
George Hambley
More carbon dioxide is a _p__os_i_ti_v_e___ thing,
which makes crops __p_r_o_d_u_c_e__ more and will encourage _a__g_re_a_t_e_r_r_a_n_g_e__o_f _____ _a_n_i_m_a_l_s__.
Unit 4 Global warming
The earth is becoming warmer
-but does it matter?
Warming up:
We depend on energy to do many things in our daily lives. Can you make a list of sources of energy?
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The author 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.
√√
Coal oil wind sun nuclear water underground
√√
heat
√√
Which source is “renewable”?
2.What causes the global warming?
Human activity—burning of fossil fuels Greenhouse effect—greenhouse gases Huge quantities of extra carbon dioxide
Para.4 … the levels of carbon dioxide have increased greatly over the last 100 to 150 years.
Para.5 … resulted in
it is this
tihnecrbeuarsneiningcoafrlmbeodonredtiaoonxdidme.ore
2.What is the name of the magazine Earth Care
Read and underline the topic sentences of each paragraph.
Para.1 So how has this come about and does it matter? agree
fossil
fuels
that
has
Para.6 …the attitudes of scientists towards this rise are completely different.
Para. 7 No one knows the effects of global warming. Does that mean we should do nothing?
Match the main idea of each part:
II (23) I (1)
IV (7)
• Explain how global warming comes about.
• Introduce the problem of global warming. • Give a warning and raise a question for the readers to think over.
The different ideas between Dr. Janice Foster & George Hambley
Dr. Janice Foster
Carbon dioxide has caused the global temperature to __g_o__u_p____. An increase of five degrees would be a _c_a_ta_s_t_r_o_p_h_e_ and could be _v_e_r_y__se_r_i_o_u_s__.
Part III (Para4-6)
They don't agree with each other.
Dr. Janice Fosterthinks the effects of global warming could be very serious. George Hambleythinks global warming will be mild with few bad environmental consequences.
Skimming ★ ★
Skim the title: THE EARTH IS BECOMING WARMER –
BUT DOES IT MATTER?
What is the main topic?
A.The earth. ☺B. Global warming.
C. Becoming warmer doesn’t matter.
Part III (Para4-6)
What do the three scientists think about global warming? Dr. Janice Foster thinks the effects of global
warming could be very serious.
thinks global warming will be George Hambley mild with few bad environmental
consequences.
Charles Keeling
believes it is the burning of more and more fossil fuels that is resulting in a big increase in carbon dioxide.
Fast Reading
Read the headline and the lead,
then answer the following questions:
1. Who wrote the article?
2.What is the name of the magazine?
4.
Tip: In English, some nouns begin with a capital
coal
Water power
Fossil oil petrol
Solar energy
Wind power
underground heat 地热
（大亚湾） Nuclear Energy
Discussion:
Which source is cleaner or healthier?
√√
Other reasons?
Things that use energy around us or at any other places:
In a house
⊙What is it in the picture? It’s a g__re_e_n_h_o__u_s_e made of glass.
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.
Para.2 …that it is human activity that has caused this global warming rather than a random but natural phenomenon.
Para.3 All scientists subscribe to the view that the increase in the earth’s temperature is due to the burning of fossil fuels like….
III
(4-6)
• Two different attitudes among scientists towards the consequences
of global warming.
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Part II (Para2-3)
Fill in the blanks about the causes of Greenhouse effect.
⊙What is it used for?
It’s used for__g_r_o_w__in_g__p_l_a_n_ts__, especially during cold weather.
❖How does it work? The air inside is warm because the
Greenhouse effect is a natural p henomenon. Greenhouse gases in the atmosphere can warm the earth by trapping heat energy. But the problem begins when we add huge quantities of extra carbon dioxide to the atmosphere by burning fossil fuels . Therefore, more heat energy is t rapped in the atmosphere. It is the increased amount of carbon dioxide that is r esulting in global warming.
Due to the greenhouse effect, the earth is becoming warmer and warmer---
But does it matter?
Reading
The earth is becoming warmer ——But does it matter?
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What are the two graphs about?
➢The first graph shows the temperature increase of one degree Fahrenheit between 1860 to 2000. ➢The second graph shows the carbon dioxide content in the atmosphere from 1957 to 1997.
letter, such as names of people and places, titles of magazines, newspapers, stories and books, etc..
1.Who wrote the magazine article？ Sophie Armstrong
Skimming ★ ★ ★ ★
Skim the body part(7 paras):
Introduction Body Conclusion II
wk.baidu.com
Para. 2-3
I
Para. 1
IV
Para. 7
III
Para. 4-6
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Scanning ★ ★ ★ ★