新人教选修6 Unit4 Global warming[全套课件下载]
合集下载
人教版英语选修六Unit 4 Global Warming(Reading)课件(共22张PPT)
b.To list two different attitudes towards global warming among scientists
c.Introduce the issue of global warming
d.whether people should do something about global warming or not.
2. Which scientists are not mentioned in our text? A. Dr. Janice Foster. B. Charles Keeling. C. George Hambley. D. Toney Bush
Part 1(1)
Answer the questions. 1. Who wrote the magazine article?
Sophie Armstrong wrote the magazine article. The name of the magazine is Earth Care.
2 What does “this” in Para.1 refer to?
The temperature of the earth rose about one degree .
Homework
1. Read the passage again and review the new words and expressions.
2. Preview Using Language -- WHAT CAN WE DO ABOUT GLOBAL WARMING?
Dr. Janice Foster
George Hambley
Carbon dioxide has More carbon dioxide is
c.Introduce the issue of global warming
d.whether people should do something about global warming or not.
2. Which scientists are not mentioned in our text? A. Dr. Janice Foster. B. Charles Keeling. C. George Hambley. D. Toney Bush
Part 1(1)
Answer the questions. 1. Who wrote the magazine article?
Sophie Armstrong wrote the magazine article. The name of the magazine is Earth Care.
2 What does “this” in Para.1 refer to?
The temperature of the earth rose about one degree .
Homework
1. Read the passage again and review the new words and expressions.
2. Preview Using Language -- WHAT CAN WE DO ABOUT GLOBAL WARMING?
Dr. Janice Foster
George Hambley
Carbon dioxide has More carbon dioxide is
人教版英语选修六Unit 4 Global Warming(Reading) 课件(共42张PPT)
4. Greenhouse gases continue to build up in the atmosphere.
5. George Hambley believes that global warming will do good rather than harm to the earth.
Researchers say these changes are having severe effects on animals such as penguins, seals and polar bears. Changes in temperature and wetness in the air can also affect the reproduction of some reptiles and amphibians. For example, the sex of baby painted turtles is linked to the average temperature in July. Scientists say even small temperature increases can threaten the production of male turtles. In Europe, scientists say warmer temperatures are affecting the spring and autumn seasons.
What’s worse, the glaciers (冰川) of the South Pole are beginning to crack (破裂).
The sea level to rise.
Tsunami (海啸)
Tornados (飓风)
新人教版高中英语选修6Unit4 Global warming(ppt)
Task 1. Ss in pairs, talk about the greenhouse and answer the following questions:
What is a greenhouse? How does it work? What do you think greenhouse gases do?
9. Gorge Hambley is worried about the effects of carbon dioxide on plant growth. F 10. It is clear what the effects of global warming will be. F
Task 4. Ss read the passage again and try to divide the whole passage into several parts and summarize the main idea for each part. While reading, pay attention to the writing skills.
Task 2. Predicting: Ss read the title and predict what the text will tell.
Task 3: Ss read the passage and judge the following sentences: true of false. 1. The temperature last century didn’t increase much. F 2. Everyone believes that global warming is caused by the activities of humans. F 3. Janice Foster believes that global warming is caused by burning fossil fuels. T 4. Natural gas is greenhouse gas. F 5. Carbon dioxide is a byproduct of burning fossil T fuels.
What is a greenhouse? How does it work? What do you think greenhouse gases do?
9. Gorge Hambley is worried about the effects of carbon dioxide on plant growth. F 10. It is clear what the effects of global warming will be. F
Task 4. Ss read the passage again and try to divide the whole passage into several parts and summarize the main idea for each part. While reading, pay attention to the writing skills.
Task 2. Predicting: Ss read the title and predict what the text will tell.
Task 3: Ss read the passage and judge the following sentences: true of false. 1. The temperature last century didn’t increase much. F 2. Everyone believes that global warming is caused by the activities of humans. F 3. Janice Foster believes that global warming is caused by burning fossil fuels. T 4. Natural gas is greenhouse gas. F 5. Carbon dioxide is a byproduct of burning fossil T fuels.
人教版英语全国通用版选修6 Unit 4 Global warming 课件
9．graph n. 图表；坐标图；曲线图 10.motor n. 发动机
11．can n. 容器；罐头 12.microwave n. 微波炉；微波 13．nuclear adj. 核的；核能的；原子核的
高考与教材 1.(2019·全国卷Ⅱ)This is quite important, because it is directly related to your commitment (commit)． 2．(2019·江苏卷)So scientists are trying their best to save the species from going out of existence (exist)． 3．(2018·全国卷Ⅰ)The researchers also explored what would happen if consumers (consume) replaced old products with new electronics.
6．turn off 关掉 7．die out 灭亡；逐渐消失 8．tear down 拆掉；拆毁 9．save energy 节约能源 10．get damaged 遭到破坏
1．It is necessary for us to protect our environment. 对我们来说，保护环境是必要的。 2．Only in this way can we live in harmony with the animals. 只有这样我们才能与动物和谐相处。 3．Water resources have become so badly polluted that some of the water is unfit to drink or to use. 水资源已经被污染得如此严重，以至于一些水已经不适合饮 用或使用。
人教版英语选修六Unit 4 Global Warming(Using Language)课件(共23张PPT)
Let’s learn how to write a passage .
Beginning : put forward the topic
Body :
ways
First /Firstly/To start with… Second /Secondly/Next… Third/ What’s more/Besides…
2.It should consist of three parts : a large heading, imperative sentences, and slogan .
Let’s learn how to make a poster
large heading Walk or __________ suggestions slogan
what to do about global warming.
Read the second letter carefully and fill in the blanks.
What can we do about global warming? 1. Turn a(n) __el_e_c_tr_i_c_a_l _a_p_p_l_ia_n_c_eoff when
More importantly/ Last but not least…
Ending : hope/future
Step1.Beginning: put forward the topic
Step2.Body:ways
Recently, global warming has become a hot topic among peopl It causes the sea level to rise and many disasters to strike. So we must take effective measures to save our planet.
人教版选修六unit4Globalwarmingusinglanguage课件
不定式作后置定语的常见情况： ●当中心词是序数词或被序数词修饰时,常用不定式作后置定语。 ●当中心词是形容词最高级,the next, the last, the only 或被这
些词修饰时，常用不定式作后置定语。 ●当中心词是抽象名词way, chance, ability, promise,ambition,
1. 勤俭能源，保护环境的重要性； 2. 提供一些关于勤俭能源的具体建议； 3. 呼吁大家勤俭能源。
◆Turn a(n) _e_l_e_ct_r_i_ca_l_a_p__p_li_a_n_c_e__ off when you’re not using it. ◆Put on more clothes instead of turning up the _h_e_a_t_.
◆Walk or _r_id_e__a_b_i_k_e_ instead of taking motor vehicles. ◆_R_e_c_y_c_le_ cans, bottles, plastics and newspapers. ◆Buy things made from _r_e_c_y_c_le_d__m_a_t_e_r_ia_l_s__. ◆Buy products that are economical with _en__er_g_y__. ◆_P_l_a_n_t_t_r_e_es__ in your garden or your school yard. ◆Talk with your family and friends about _g_lo_b__a_l _w_a_r_m__in_g___.
Skimming (2mins)
1. Skim the first letter and the first paragraph of the second letter and fill in the blanks.
些词修饰时，常用不定式作后置定语。 ●当中心词是抽象名词way, chance, ability, promise,ambition,
1. 勤俭能源，保护环境的重要性； 2. 提供一些关于勤俭能源的具体建议； 3. 呼吁大家勤俭能源。
◆Turn a(n) _e_l_e_ct_r_i_ca_l_a_p__p_li_a_n_c_e__ off when you’re not using it. ◆Put on more clothes instead of turning up the _h_e_a_t_.
◆Walk or _r_id_e__a_b_i_k_e_ instead of taking motor vehicles. ◆_R_e_c_y_c_le_ cans, bottles, plastics and newspapers. ◆Buy things made from _r_e_c_y_c_le_d__m_a_t_e_r_ia_l_s__. ◆Buy products that are economical with _en__er_g_y__. ◆_P_l_a_n_t_t_r_e_es__ in your garden or your school yard. ◆Talk with your family and friends about _g_lo_b__a_l _w_a_r_m__in_g___.
Skimming (2mins)
1. Skim the first letter and the first paragraph of the second letter and fill in the blanks.
人教版英语选修六Unit 4 Global Warming(第一课时)课件(共45张PPT)
More carbon dioxide is a __p_o_s_i_ti_v_e __
thing,
which makes crops _p_r_od_u_c_e____more
and will en- courage a__g_r_ea_t_e_r_r_a_n_ge__o_f ____ a_n_i.mals
Discussion
• Of the two ideas, which is the writer in favour of? Let’s come to the last para.
3. What is the purpose of the last paragraph of the article?
5.George Hambley believes that global warming will do good rather than harm to the earth. T
6. It is clear what the effects of global warming will be. F
• The earth is our mother, we need to care for her.
• We are the master of the Earth, we only have one Earth, let us protect it.
Fast Reading
Glance at the text and answer the questions.
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.
人教版(新课程标准)选修6Unit4Globalwarming复习课件
目录
eg. (浙江6月卷) We drove through several states and saw lots of great sights along the way. 我们开车经过几个州，沿途看到了许多美丽的风景。
目录
9.range n.种类；范围；幅度；界限(limit) v.(在一定范围内)变动；变化(vary)； 排列(arrange) •range from...to... 在……和……之间变化 range between...and... 在……和……之间变化 •a (full/wide) range of 一系列……；各种各样的 in/within range (of...) 在(……)范围内 beyond/out of range (of...) 在(……)范围外
目录
5.result in导致(cause/lead to) •result from(＝arise from)由……造成；因……而产生 •as a result 结果 as a result of 由于……；作为……的结果 without result 没有结果；白费 eg. When facing trouble, he couldn’t keep calm, which results in his constant failures. 面对困境时，他不能保持镇定，这导致他不断失败。
目录
10.keep on继续；反复做 keep on doing sth继续做某事 eg. (202X·天津6月卷书面表达)Every time I encounter whether classical music or jazz, a sense of entertainment and relief arises spontaneously, making my body refresh and offering the courage to keep on.(艺术) 每当我听到古典音乐或爵士乐时，一种娱乐和放松的感觉就会自然而然地产 生，使我的身体恢复活力，并给我继续前进的勇气。
eg. (浙江6月卷) We drove through several states and saw lots of great sights along the way. 我们开车经过几个州，沿途看到了许多美丽的风景。
目录
9.range n.种类；范围；幅度；界限(limit) v.(在一定范围内)变动；变化(vary)； 排列(arrange) •range from...to... 在……和……之间变化 range between...and... 在……和……之间变化 •a (full/wide) range of 一系列……；各种各样的 in/within range (of...) 在(……)范围内 beyond/out of range (of...) 在(……)范围外
目录
5.result in导致(cause/lead to) •result from(＝arise from)由……造成；因……而产生 •as a result 结果 as a result of 由于……；作为……的结果 without result 没有结果；白费 eg. When facing trouble, he couldn’t keep calm, which results in his constant failures. 面对困境时，他不能保持镇定，这导致他不断失败。
目录
10.keep on继续；反复做 keep on doing sth继续做某事 eg. (202X·天津6月卷书面表达)Every time I encounter whether classical music or jazz, a sense of entertainment and relief arises spontaneously, making my body refresh and offering the courage to keep on.(艺术) 每当我听到古典音乐或爵士乐时，一种娱乐和放松的感觉就会自然而然地产 生，使我的身体恢复活力，并给我继续前进的勇气。
人教选修六Unit 4 Global warming全单元课件
Sources of energy Fossil fuels
Notes
• Produce carbon dioxide • cheap and concentrated form of
energy
Listening
Wind power
• clean • not practical: need huge areas of
Listening
LI BIN: But it’s not thed_e_v_e_lo_p__in_g__ countries that put most of the carbon _d_i_o_x_id_e_ into the air. The developed countries are really the ones to __b_la_m__e.
4. Nuclear power is a good source of energy.
Listening
• 2. Listen to Part 1 again and tick the energy sources that are mentioned. Complete the notes on them.
Listening
1. Listen to Part 1 and decide which statements Professor Keeling does NOT agree with.
1. We should stop depending on fossil fuels for our energy. Agree
Listening
KEELING: No, they don’t. However, that is a _p_r_o_b_le_m__ we must work on as a _g_lo_b_a_l_ community. That means _d_e_v_e_lo_p_e_d_ and _d_e_v_e_lo_p__in_g_ countries will have to work together.
人教版新课标 选修六 Book6 Unit4 Global Warming (Reading) 课件
Step6: Watching and discussing
1. What does the video want to tell us?
2. According to what we have learned today, what causes global warming?
3. What should we do about global warming?
What can we do about global warming?
drought
global warming too many
trees are cut down = deforestation
hot ! !
!
Reading (P.26): THE EARTH IS BECOMING WARMER —BUT DOES IT MATTER?
(Para_1_ )
towards global waro _5 )
b. whether people should do sth. about global warming
Part 3 (Para_6_ )
c. an introduction of global warming
6.反对……
6. be opposed to
7.增加，聚集 8.继续
7. build up 8. keep on
Step3: Pre-reading
Guess from the title and the two graphs: What may be talked about in the passage? A. The cause of the global warming
Unit 4 Global Warming
人教版英语选修六Unit 4 Global Warming(第一课时)课件(共33张PPT)
4.离开宿舍或教室时，记得关上灯，节约用电。
Dear teachers and students, The Students’ Union
Let’s make this world a better place !
global warming
Watch a video Brainstorming
Skimming Skim the article:
Who wrote the article? What is the name of the magazine? What are the names of the three scientists mentioned in the article?
1.Give money to green the surroundings and protect the forests.
2.Encourage people to find and use more renewable energy.
3.As for the enterprises,they should reduce emission and use renewable energy to make less pollution.
a big increase in
carbon dioxide.
should not worry about it
The effect of global warming:
Positive effects Negative effects
Global warming
1.Make plants 1.The sea level to rise.
Discussion
.
.
Try to reduce the use of motor vehicles
Dear teachers and students, The Students’ Union
Let’s make this world a better place !
global warming
Watch a video Brainstorming
Skimming Skim the article:
Who wrote the article? What is the name of the magazine? What are the names of the three scientists mentioned in the article?
1.Give money to green the surroundings and protect the forests.
2.Encourage people to find and use more renewable energy.
3.As for the enterprises,they should reduce emission and use renewable energy to make less pollution.
a big increase in
carbon dioxide.
should not worry about it
The effect of global warming:
Positive effects Negative effects
Global warming
1.Make plants 1.The sea level to rise.
Discussion
.
.
Try to reduce the use of motor vehicles
人教新课标选修6 Unit 4 Global warming 公开课课件(共24张PPT)
III
Para. 4-6
Match the main idea of each part:
II (2-3) 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. • Two different attitudes among scientists towards the consequences of global warming.
Positive effects
1. make plants grow quicker 2. crops will produce more 3. a greater range of animals 4. make life better
How to reduce greenhouse gases?
① What are they? ② What are these buildings made of?
greenhouse / glass
③What’s the use? A greenhouse is used for_____________, growing plants especially during ____ weather. cold
The organization of the article: A title
Introduction
Body
Conclusion
Skim the body part(7 paras):
Para. 4-6
Match the main idea of each part:
II (2-3) 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. • Two different attitudes among scientists towards the consequences of global warming.
Positive effects
1. make plants grow quicker 2. crops will produce more 3. a greater range of animals 4. make life better
How to reduce greenhouse gases?
① What are they? ② What are these buildings made of?
greenhouse / glass
③What’s the use? A greenhouse is used for_____________, growing plants especially during ____ weather. cold
The organization of the article: A title
Introduction
Body
Conclusion
Skim the body part(7 paras):
高中英语(人教版)选修六 Unit 4 Global warming-reading课件(17张PPT)
15
Discussion: The earth is becoming
warmer. In your opinion, does it matter?
A : We shall do
something about global warming.
B: We shall do
nothing about global warming.
Detailed reading ★ ★ ★
The 2nd graph shows the amount of c arbon d ioxide in the atmosphere from 1957 to 1997. The CO2 c ontent steadily increased over this forty-year period. It went up from 315 to 370 parts per million.
2.Everyone believes that global warming is caused by the activities of humans.
3.Janice Foster believes she can measure the future global rise in temperature.
11
Detailed reading ★ ★ ★
Read something more about the 2 graphs:
The 1st graph shows the global temperature between 1860 and 2000 . The temperature increased and decreased over this period but on the whole it increased by around one degree Fahrenheit. During this time, the earth reached its l owest temperature in about 1910 and its highest in 2000 . There was a steady increase in the temperature during the 20 years after 1980. We can see from the graph that the earth has become w armer since early last century. 12
Discussion: The earth is becoming
warmer. In your opinion, does it matter?
A : We shall do
something about global warming.
B: We shall do
nothing about global warming.
Detailed reading ★ ★ ★
The 2nd graph shows the amount of c arbon d ioxide in the atmosphere from 1957 to 1997. The CO2 c ontent steadily increased over this forty-year period. It went up from 315 to 370 parts per million.
2.Everyone believes that global warming is caused by the activities of humans.
3.Janice Foster believes she can measure the future global rise in temperature.
11
Detailed reading ★ ★ ★
Read something more about the 2 graphs:
The 1st graph shows the global temperature between 1860 and 2000 . The temperature increased and decreased over this period but on the whole it increased by around one degree Fahrenheit. During this time, the earth reached its l owest temperature in about 1910 and its highest in 2000 . There was a steady increase in the temperature during the 20 years after 1980. We can see from the graph that the earth has become w armer since early last century. 12
Unit 4 Global warming 新人教版选修6.pptx
(平均)while Hob’s is very much below it.
7．Under normal
(情况)，these two gases react readily to produce carbon
dioxide and water. 8．All the crops and fields here are under water during the
【温馨提示】 a quantity of 后同样可接不可数名词或可数名词的复数形式。但当它作主 语时谓语动词一般根据其所修饰的名词而定，而 quantities of 作主语时，不论其后的名词 为可数或不可数，谓语动词都用复数。
[即境活用]
1．(2009 年高考福建卷)—Why does the lake smell terrible?
详解
1quantity n． 量；数量；数目，数额 (回归课本 P26) The problem begins when we add huge quantities of extra carbon
dioxide into the atmosphere.
当我们向空气中排放大量的多余的二氧化碳的时候，问题就开始产生了。
学海无涯
新课标人教版
核心词汇
1．
( 消 费 者 )are encouraged to complain about faulty goods.
2．We
(提倡)using cloth or paper bags instead of plastic ones.
3.There is a growing
(趋势)for people to work at home instead of in an
新人教选修6_Unit4_Global_warming[全套课件下载] (1)
![新人教选修6_Unit4_Global_warming[全套课件下载] (1)](https://img.taocdn.com/s3/m/af836a17b7360b4c2e3f647a.png)
Pre-reading ( 3m )
What about the weatneed…
The sun.
How about the plants?
If lack of solar energy, the plants…
Greenhouse
Greenhouse gases!
〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓
3. The author probably agrees that ________ D 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.
Warming up – II ( 5 m )
Windmills, renewable.
What? Renewable?
A coal power station , non-renewable.
What? What kind? Renewable?
An oil refinery(精炼厂), non-renewable.
3. 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.
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓
Reading V (4m)
The different ideas between Dr. Janice Foster & George Hambley Dr. Janice Foster George Hambley
Carbon dioxide has caused the global temperature to go up __________. An increase of five degrees would be a catastrophe ____________ and could be Very serious ______________.
4. 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 1977. 5. What is the main topic of the article? → Global warming / the warming of the earth
Fossil fuels
What are fossil fuels?
• Ancient animal and plant material below the surface of the earth with a high carbon content, such as coal, oil and natural gas, which can be burnt to produce energy. Also known as nonrenewable energy because once they are used they have gone forever; they cannot be renewed.
Reading II-skimming (5m)
Read the passage carefully and judge whether the statements are true
F
Reading III-detailed reading (8m)
How many parts can the text be divided into? Tips: Part 1 (para __) Part 2 (para ___ to ___) Part 3 (para ___ to ___) Part 4 (para ___ to ___)
I learnt that global warming could have terrible effects on the environment.
….
Debate
A A : We shall do
something about global warming.
B
B: We shall do
nothing about global warming.
2.Sources of energy (ie. coal)
Things that use energy around us or at any other places:
In a house
Things that use energy
Sources of energy
lights television cassette player computer fridge stove washing machine hairdryer video recorder
Warming up – II ( 5 m )
Windmills, renewable.
What? Renewable?
A coal power station , non-renewable.
What? What kind? Renewable?
An oil refinery(精炼厂), non-renewable.
Unit 4 Global Warming
Save the earth!
Warming up – I ( ３m )
Work in groups ---list things as required :
1. Things that use energy around us or at any other places,( ie. light)
3. 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.
coal oil natural gas wind(power) sun(solar energy) water(hydro-electric power) the sea ( tidal energy) uranium(nuclear energy) plant waster(biomass energy)
What? What kind? Renewable?
A nuclear power plant, non-renewable.
What? What kind? Renewable?
A hydro-electric dam, renewable.
What? What kind? Renewable?
• What are greenhouse gases? • What’s greenhouse effect?
Let’s see the following picture about it.
Reading
Global Warming
Reading I –scanning (5m)
Read the passage again to find out the answers to the questions in Ex.1
Pre-reading ( 3m )
What about the weather?
9℃ / 14℃
We need…
The sun.
How about the plants?
If lack of solar energy, the plants…
Greenhouse
Greenhouse gases!
Reading IV (3m)
Choices.
〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓
1. Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1977? B A. Dr. Janice Foster. B. Charles Keeling. C. George Hambley. D. Sophie Armstrong.
1.Who wrote the magazine article? What is the name of the magazine? → Sophie Armstrong, Earth Care. 2.What are the names of the three scientists mentioned in the article? → Dr Janice Foster, Charles Keeling, George Hambley.
Geothermal (地热的) Energy Plant
Non-renewable
• • • • Coal Oil Natural gas Uranium
Renewable
• Wind (wind power) • Sun (solar energy) • Water (hydroelectric power) • Plant waste (biomass energy) • Hot springs or geysers (geothermal energy) • The sea (tidal energy)
〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓
3. The author probably agrees that ________ D 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.
Summary
Skim over the passage, and tell what you have learnt in class.
Try to talk in general terms rather than in details.
eg: I learnt that the earth is becoming warmer.
〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓
Reading V (4m)
The different ideas between Dr. Janice Foster & George Hambley Dr. Janice Foster George Hambley
Carbon dioxide has caused the global temperature to go up __________. An increase of five degrees would be a catastrophe ____________ and could be Very serious ______________.
4. 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 1977. 5. What is the main topic of the article? → Global warming / the warming of the earth
Fossil fuels
What are fossil fuels?
• Ancient animal and plant material below the surface of the earth with a high carbon content, such as coal, oil and natural gas, which can be burnt to produce energy. Also known as nonrenewable energy because once they are used they have gone forever; they cannot be renewed.
Reading II-skimming (5m)
Read the passage carefully and judge whether the statements are true
F
Reading III-detailed reading (8m)
How many parts can the text be divided into? Tips: Part 1 (para __) Part 2 (para ___ to ___) Part 3 (para ___ to ___) Part 4 (para ___ to ___)
I learnt that global warming could have terrible effects on the environment.
….
Debate
A A : We shall do
something about global warming.
B
B: We shall do
nothing about global warming.
2.Sources of energy (ie. coal)
Things that use energy around us or at any other places:
In a house
Things that use energy
Sources of energy
lights television cassette player computer fridge stove washing machine hairdryer video recorder
Warming up – II ( 5 m )
Windmills, renewable.
What? Renewable?
A coal power station , non-renewable.
What? What kind? Renewable?
An oil refinery(精炼厂), non-renewable.
Unit 4 Global Warming
Save the earth!
Warming up – I ( ３m )
Work in groups ---list things as required :
1. Things that use energy around us or at any other places,( ie. light)
3. 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.
coal oil natural gas wind(power) sun(solar energy) water(hydro-electric power) the sea ( tidal energy) uranium(nuclear energy) plant waster(biomass energy)
What? What kind? Renewable?
A nuclear power plant, non-renewable.
What? What kind? Renewable?
A hydro-electric dam, renewable.
What? What kind? Renewable?
• What are greenhouse gases? • What’s greenhouse effect?
Let’s see the following picture about it.
Reading
Global Warming
Reading I –scanning (5m)
Read the passage again to find out the answers to the questions in Ex.1
Pre-reading ( 3m )
What about the weather?
9℃ / 14℃
We need…
The sun.
How about the plants?
If lack of solar energy, the plants…
Greenhouse
Greenhouse gases!
Reading IV (3m)
Choices.
〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓
1. Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1977? B A. Dr. Janice Foster. B. Charles Keeling. C. George Hambley. D. Sophie Armstrong.
1.Who wrote the magazine article? What is the name of the magazine? → Sophie Armstrong, Earth Care. 2.What are the names of the three scientists mentioned in the article? → Dr Janice Foster, Charles Keeling, George Hambley.
Geothermal (地热的) Energy Plant
Non-renewable
• • • • Coal Oil Natural gas Uranium
Renewable
• Wind (wind power) • Sun (solar energy) • Water (hydroelectric power) • Plant waste (biomass energy) • Hot springs or geysers (geothermal energy) • The sea (tidal energy)
〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓
3. The author probably agrees that ________ D 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.
Summary
Skim over the passage, and tell what you have learnt in class.
Try to talk in general terms rather than in details.
eg: I learnt that the earth is becoming warmer.
〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓 〓〓〓〓〓〓〓〓〓