人教版选修6unit4reading
选修六 6《Unit 4 Writing》 公开课精品课件 公开课精品课件
The environment faces air pollution, global warming, acid rain, and several other very serious problems because of our use of fossil fuels. Over the last 150 years, burning of fossil fuels has resulted in more than 25 percent increase in carbon dioxide in our atmosphere.
● Now choose a topic from the
below list that you feel strongly about. Make notes on your topic using headings similar to those in the table above. Use Tom's essay as a model to write your own.
• Plastic bags litter is a danger to the environment: Waste of nonrenewable resources; Last from 20 to 1,000 years in the environment; Kill up to one million seabirds, 100,000 sea mammals and countless fish everyt
recycled, these
resources are lost to
us.
2.In China, 2 billion
plastic bags are used
人教版高中英语选修六 Unit4 Global warming-词汇篇(教师版)
人教版高中英语选修六 Unit4 Global warming-词汇篇（教师版）1.2.light1)n. 光,线,灯2)v.照亮,点燃He lit a match. 他划着了一根火柴。
A smile of triumph lit up her face. 她的脸上闪耀着胜利的微笑。
The match lights easily. 这火柴容易划着3)adjThe suitcase is very light.（轻的）There was a light rain falling.He is a light sleeper. 他睡不沉。
（易醒的）3.heat v. / heat up 是某物变热或变暖heated adj. 热的激烈的heated debate, heated discussionheatedly adv.愤怒地激昂地heater加热器发热器4.consume v.---- consumer (n.).1)消耗,花费;耗尽She consumed most of her time in reading.2)吃完,喝光The kids soon consumed all the food on the table. 孩子们一会儿功夫便把桌上的食品全部吃光。
3)使全神贯注,使着迷+withThe boy was consumed with curiosity. 那男孩充满好奇心。
5.as … as one can = as … as possiblePlease come here as soon as possible.= Please come here as soon as you can..as many as 多达as long as 长达,只要as far as远至,就…而论as well as 和…一样好,也,和as early as 早在6.trap vt. / n. 挡住圈套Sand and leaves trapped the water in the stream. They finally trapped the mouse in a cage.最后，他们用笼子把老鼠逮着了。
新课标人教版选修六Book6 Unit4 Reading
Scientists Opinion Janice ◆ Over the next 100 years the Foster amount of warming could be as low as 1 to 1.5 degrees Celsius, but it could be as high as 5 degrees Celsius. ◆ An increase of five degrees catastrophe . would be a 4____________
Writing techniques
Raising a question
Main ideas of each part
Writing techniques
(Paragraphs 2---3 ) Illustrate how
about.
Giving examples,
using graphs,
global warming comes explanation.
between 1860 to 2000.
Graph 2 is about the carbon
dioxide content in the atmosphere,
1958--1990.
5. What is the main topic of the article? Global warming/ the warming of
warming? Do they agree with one another? They don't agree with each other. Dr. Janice Foster thinks the effects of global warming could be very serious.
高二英语人教版选修六 Unit4 Global warming 单词讲解
vt. 照顾，护理
go up 上升，增长，升起 △Charles Keeling 查尔斯。基林 △measurement n.衡量，测量，尺寸 per prep. 每，每一
data n. 资料，数据 result in 导致 trend n.趋势，倾向，走向 catastrophe n. 大灾难，浩劫 flood n.洪水，水灾 △drought n. 旱灾，干旱 △famine n. 饥荒 △George Hambley 乔治.汉布利 oppose vt.反对，反抗，与(某人)较量
mit(v.)承担义务,做出保证---commitment(n.) 承诺,交托 ---committed (adj.)尽心尽力的；坚定的
13. pollute(v.)污染---pollution(n.)污染---pollutant(n.)污染物 14. appliance(n.)用具,器具---apply(v.)应用 (多义) 15. grow(v.)种植,生长---growth(n.)成长 16. casual(adj.)随意的---casually(adv.)随意地 17.wave(n.)波---microwave(n.)微波炉 18.fresh(adj.)新鲜的---freshness(n.)新鲜---refresh(v.)使恢复,使振动 19. educate(v.)教育---educator(n.)教育工作者,教师
opposed adj. 反对的，对立的 be opposed to 反对 mild adj.温和的，温柔的，淡的 △environmental adj.环境的 △environmentalist n. 环境保护论者 consequence n.结果，后果，影响 state vt. 陈述，说明 range n.种类，范围 even if 即使 keep on 继续 glance vi. 看一下，扫视
Unit 4 Warming up and Reading 课件-高中英语人教新课标选修六
• 大气层
8. fossil fuel
• 化石燃料
9. carbon dioxide
• 二氧化碳
10. renewable source
• 可再生资源
11. non-renewable source
• 不可再生资源
12. Natural resources
• 天然资源
• Now that we have learned some sources of energy are non-renewable, What should we do with energy ?
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__s_e_ri_o_u_s__.
giving examples, using graphs, explanation
Part3 (6)
List two different attitudes among scientists towards global warming.
giving examples, making contrast
makes the greenhouse
_h_e_a_t_u_p___and so the
plants can grow throughout the cold period.
What function do greenhouse gases play?
Greenhouse gases perform the same function
新人教选修六-Unit-4-Global-warming[单元课件
2)tendency n.倾向 a tendency to/towards sth…的倾向，趋势 have a tendency to do sth. 倾向于做某事， 往往会做某事
Eg. My grandmother tends to go to bed early every day.
5. Without the ‘green house effect’, the earth would be about thirty-three degrees Celsius cooler than it is. 如果没有温室效应, 地球会比现在冷33℃。 这是一个含蓄虚拟条件句。 有时假设的情况并不以条件从句形式表示 出来, 而是通过一个介词短语或其他方式 表示。常用的词或短语有: without, but for,
e.g. What are you going to do with the amount of money?
7. It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up.
Compared with your brother, you
should make greater efforts to study English.和你哥哥相比，你应该更加努 力学习英语。
3. So how has this come about and does it matter?
come about: 发生, 造成, 相当于happen 你能告诉我事情是怎么发生的吗？
①用于否定句或疑问句, 后接that引导的宾语 从句。 ②用于肯定句, 一般接whether 或if引导的宾语 从句。 如: I don't doubt _t_h_a_t__ he is telling the truth. 我毫不怀疑他在讲真话。
新课标人教版选修六Book6 Unit4 Using language
What has caused the global warming?
①Human activity--- burning of fossil fuels. ② Greenhouse effect--- greenhouse gases--we need those gases.
③ Huge quantities of extra carbon dioxide---from
1.Does Earth Care agree with Ouyang Guang’s opinion that individuals can have no effect?
No, Earth Care agrees that together, individuals can make a difference.
1957 to 1997---from around 315 parts per million to around 370 parts per million.
The effects of global warming
• Negative effects:
• 1 cause the sea level to rise; • 2 severe storms; • 3 droughts; • 4 famine; • 5 destruction of species • 6 flood
recycled ◆ Buy things made from __________ materials __________. ◆ Buy products that are made to save energy ________. Plant trees in your garden or your ◆ __________ school yard. ◆ Talk with your family and friends global warming about _______________.
人教版高二英语选修6《Unit4Globalwarmingwarming》导学案
Book6 Unit4 Global warming 导学案（Period One: Reading）课前案Skim the text and finish the following information.1.What’s the main topic of the passage?The main topic of the passage is about .2.Who wrote the magazine article? What is the name of the magazine?wrote the magazine article; the name of the magazine is .3.What are the names of the three scientists mentioned in the article?The names of the three scientists mentioned in the article are , , and .Do they agree with one another? .4.The passage can be divided into three sections, match them with the main idea of each section.Part1.(1) A. How global warming comes aboutPart2. (2-5) B. List two different attitudes towards global warmingPart3. (6) C. Introduction of global warmingPart4. (7) D. Whether people should do something about global warming课中案学习目标:1.To learn some important words and phrases about global warming.2.To develop the reading skills by skimming and scanning the passage.3.To strengthen the awareness of environment protection .Step 1 Fast readingRead the text quickly and choose the best answers.1. How much did the temperature rise in the 1900s?A．One degree Fahrenheit. B．One Celsius.C．Two degrees. D．Thirty degrees Celsius.2.What causes the earth’s temperature increasing?A. Cutting treesB. Wasting the farmland.C. Running out of the river waterD. Burning fossil fuels.3.Which of the following is Dr. Janice F oster’s opinion?A. The result of the temperature increase will be serious.B. The amount of warming is nothing serious.C. We needn’t worry about high levels of carbon dioxide.D. Global warming is a natural phenomenon.4.According to George Hambley, .A. Global warming is a serious problem.B. There is no need to worry about global warming.C. The levels of CO2 in the air will become lower in the future.D. More animals will make greenhouse gases decrease.5. We can infer from the text that __________.A. the debate about the effects of global warming has not been settled.B. the greenhouse effect is the result of people’s actions.C. all scientists think it is important to reduce the amount of CO2 in the atmosphere.D. reducing greenhouse gases will immediately decrease the earth’s temperature. Step2 Careful reading Read Para.2 to Para.6 and fill in the blanks.(Para.2-Para.3)The reasons for global warminggreenhouse gases(Para.4-Para.5)The levels of carbon dioxide have increased greatly over the last . According to Dr.Charles Keeling, from to , the amount in the atmosphere wentup from around parts to around parts per millionDr.Janice Foster believes over the next century ,the amount of warming could be as lowas degrees Celsius, but it could also be as high as degrees.(Para.6)Different opinions about global warming.Dr. Foster(a catastrophe)George Hambley(a positive thing)1.a rise in2.severe storms, __________,__________, famines3.the spread of4.the disappearance of1.Plants will2.Crops will3.There will be a greater rangeofStep3 Further reading True or False（）1.The temperature in the last century seemed to increase much.（）2. Everyone believes that global warming is caused by the activities of humans.（）3. The rise in carbon dioxide is causing a steady increase in global warming.（）4. George Hambley believes that global warming will do good rather than harm to the earth.（）5. It is clear what the effects of global warming will be.Step 4 Fill in the blanks to retell the passage.The temperature of the earth 1 (rise) about one degree during the 20th century. How has this come 2 ? All scientists subscribe 3 the view that it is human activity 4 has caused the 5 (globe) warming rather 6 a random but natural phenomenon. Some scientists think we add large 7 (quantity) of carbon dioxide to the air. Some scientists believe the burning of more and more fossil fuels 8 (have) resulted in the increase of carbon dioxide. Greenhouse gases continue to build 9 . It may be a catastrophe but George 10 (state) that it is a positive thing.Step 5 Free talk — a short speech 能力提升Between the two opinions ,decide on one to have a discussion in you group and then choose a speaker to give a speech on behalf of your group. The following information may help you.Step 6 Summary课后案I.课外延伸阅读Further reading about global WarmingGlobal warming is the unusually rapid increase in Earth’s average surface temperature ove century primarily due to the greenhouse gases released as people burn fossil fuels. The global averagesurface temperature rose 0.6 to 0.9 degrees Celsius (1.1 to 1.6°F) between 1906 and 2005, and the rate of temperature increase has nearly doubled in the last 50 years. Temperatures are certain to go up further.Earth’s natural greenhouse effect Earth’s temperature begins with the Sun. Roughly 30 percent ofincoming sunlight is reflected back into space by bright surfaces like clouds and ice. Of the remaining 70percent, most is absorbed by the land and ocean, and the rest is absorbed by the atmosphere. The absorbedsolar energy heats our planet. As the rocks, the air, and the seas warm, they radiate “infrared radiation). From the surface, this energy travels into the atmosphere where much of it is absorbedby water vapor and long-lived greenhouse gases such as carbon dioxide and methane. When they absorbthe energy radiating from Earth’s surface, microscopic water or greenhouse gas molecules turn into tiny heaters— like the bricks in a fireplace, they radiate heat even after the fire goes out. They radiate in alldirections. The energy that radiates back toward Earth heats both the lower atmosphere and the surface,enhancing the heating they get from direct sunlight. This absorption and radiation of heat by the atmosphere—the natural greenhouse effect—is beneficial for life on Earth. If there were no greenhouseeffect, the Earth’saverage surface temperature would be a very chilly -18°C (0°F) instead of the comfortable 15°C (59°F) that it is today.What has scientists concerned now is that over the past 250 years, humans have been artificiallyraising the concentration of greenhouse gases in the atmosphere at an ever-increasing rate, mostly byburning fossil fuels, but also from cutting down carbon-absorbing forests. Since the Industrial Revolutionbegan in about 1750, carbon dioxide levels have increased nearly 38 percent as of 2009 and methanelevels have increased 148 percent.II.拓展提高书面表达如何解决全球变暖是我们全人类共同面临的一个难题。
高中英语选修六--Unit 4
单词1．consume v．消费，消耗；吃完；喝光Each year Americans consume a high percentage of the world's energy.每年美国人都消耗掉世界能源的很大比例。
This will consume his health, destroy his temper.这将损害他的健康，毁坏他的情绪。
How many rice did you consume last year?去年你们吃了多少大米？拓展：consumer n．消费者，用户，消费品consumer goods (家用)消费品consumers' association 消费者协会consumption n. 消费(量)，消耗(量)timeconsuming adj. 耗费时间的consuming adj. 消费的；强烈的例句：The ancient consumer city was now turned into a modern industrial base. 这个古老的消费城市今天已经变成了一个现代化的工业基地。
It's vital to impress the consumer with a good advertising campaign.进行广告宣传，使消费者熟悉产品，是至关重要的。
He has to cut down on the consumption of meat.他不得不减少吃肉。
Basketball is his consuming passion.篮球令他着迷。
练习：用consume的适当形式填空①We should adopt the ____________ suggestion.②Industrialized countries are _____________ 70% of the world's energy.③We have measured the car's fuel _____________.④She _____________ the big cake.Consumers’consuming consumption consumed2．subscribe vt.&vi.(1)捐助；捐赠He subscribed a large sum of money to charities.他向慈善团体捐赠了一大笔钱。
人教版高中英语选修六Unit-4--Reading
Illustrate how global warming comes about.
. 2-5
An introduction of the passage
返回
返回
Listen, read and think
Part 1:Para 1
1.Who wrote the magazine article? → Sophie Armstrong
D．global warming will go on
E．puzzles about global warming F．different attitudes to global warming
Para. 7 G. an introduction to the passage
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The structure of the passage
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What should we do to stop global warming?
返回
.
.
Try to reduce the use of motor vehicles
返回
bike
running
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Planting trees Cleaning the
rubbish
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Assignment
1. Write an argumentation titled “Environment Protection ”based on the viewpoints in the text and yours. 2. Preview the language points in the text and find out your difficult points.
could be _v_e_r_y_s_e_r_io_u_s_. _a_n_im__a_l_s____.
高中英语选修六unit4知识点汇总
depend 依靠；依赖
举例：e.g. ①You can't depend on your parents forever.
用法：depend on/upon 词性转换(adj.) dependent
(n.) dependence 反义词： independent 近义词： rely; reliable ⚠️That (all) depends./ it all depends. (口语)视情况而定
重点词汇内容回顾复习
heat v.
用法： heat up 是某物变热或变暖 词性转换(adj.): heated adj. 热的激烈的
heatedly adv.愤怒地激昂地 heater加热器发热器
举例： heated debate, heated discussion
重点词汇内容回顾复习
consume v. 消耗,花费;耗尽
重点词汇内容回顾复习
random adj.
举例：I put these books randomly on the shelf.
词性转换(adv.)：randomly=at random
重点词汇内容回顾复习
phenomenon n.
复数： phenomena
举例：
① the phenomena of nature ②a social phenomenon
用法： depend on/upon sb. to do sth. 指望某人做某事 depend on/upon +it +that…. 指望….. depend on/upon +wh-从句
重点词汇内容回顾复习
light
1）n. 光,线,灯 2)v.照亮,点燃-----lit(lighted）-----lit(lighted） 3)adj. 轻的
选修六unit4课文讲解和翻译
quantities of 大量的 tend to do sht倾向做某事 be trapped in 被困住 go up 上升
❖Without the 'greenhouse effect', the earth would be about thirty-three degrees Celsius cooler than it is.
Who wrote the article?
What is the name of the magazine?
Sophie Armstrong Earth Care
What are the Dr Janice Foster, Charles names of the 3 Keeling,
scientists? George Hambley
A.The earth. ☺B. Global warming.
C. Becoming warmer doesn’t matter.
Where does this article most probably come from?
A.Newspaper B. Novel ☺C. Magazine
P 27 Ex.1 Glance at the magazine article and wer the following questions. Comprehending One
accurate measurements 精确的统计 the amount of ....的数量 ❖ We know that the levels of carbon dioxide have increased
人教版选修6-unit4-单词词汇讲解
① a (large) quantity of +都可
可数名词复数 ------ 不可数名词 ------
单数
A quantity of books ______hbaesen ordered. water ______been polluted.
② (large) quantities/ amouhnatss of
2. ___A_c_t_in_g_(act) before thinking always results in ________(fail) failure
14.flood
flood .n.洪水 水灾 vi.使泛滥，使淹没 flood in /into 大量涌入
15.oppose vt.反对；反抗
• by -前缀： 次要的 →bypass 旁道 旁路
bystander 旁观者 bywork 业余工作 →side effect 副作用
9.quantity n. 量；数量
大/ 少量的
a large/ small quantity of large/ small quantities of
大/ 少量地
→renew vt.使更新
• re-前缀 rebuild→reuse→reread→rewrite→recyc le→
e about 发生造成
• 同义词：happen /take place /break out /occur
• 改错：Recently many changes have been taken place in our school.________.
可数名词复数 ------
不可数名词 ------
复数
Quantities of books ______been ordered.
高中英语选修6unit_4单元教案
Unit 4 Global warming学情分析：教材分析本单元以Global warming 为主线，旨在通过单元教学使学生经过思考、学习，认识到全球变暖的起因和它所带来的种种后果。
同时鼓励学生进一步阐述地球所面临的其它严重问题，激发学生的环保意识。
引导学生运用所学语言、句式表达自己对这些现象的看法，培养他们为自己的观点辩论的能力，并能运用所学知识写一篇有关环境问题的论文。
教案一Warming Up, Pre-reading and ComprehendingTeaching goals1.Enable the students to talk about different sources of energy and express their own ideas about the use of energy.2. Enable the students to talk about the causes and effects of global warming.Step1.Warming upT: As we all know, we depend on energy to do many things in our daily life. Some people even say we could do nothing without energy. Do you aggree with me ?Then where does all the energy come from? Open your books and turn to page 25. Look at the pictures on this page. They may help you find out the answers.Step 2. Pre-readingLook at the picture of greenhouse on page25.What is it in the picture?☆Discuss the pre-reading part 1and 2.(Greenhouse gases: In the atmosphere surrounding the earth there are gases, which are called“greenhouse gases”, including carbon dioxide, methane and water vapor.)☆Then what do you think greenhouse gases do?(They trap heat from the sun and therefore warm the earth.)☆One of the effects is more and more carbon dioxide is being produced, which in turn increases thespeed of global warming. Does it matter? What’re your opinions? Next we’ll read an article “THEEARTH IS BECOMING W ARMER —BUT DOES IT MATTER?”Step3. Comprehending☆Look at the title can you guess the main topic of the article(Global warming/ the warming of the earth)Skimming:☆Read the passage quicklyHow many paragraphs does the reading text consist of? Please number them.According to the main idea of each part, match them in a right order.Part1 (1) Two different attitudes among scientists towards global warming.Part2 (2-5) How global warming comes about.Part3 (6) Introduce a discussion about global warming.Part4 (7) Leave us a question whether people should do something about global warming or not. ☆Can you match the logic order with each part? (Keys: BADC)A. Giving examples,using graphs, explanationB. Raising a questionC. Leaving a questionD Giving examples, making contrast☆Scanning: Finish the exercises 1(1,2) and 2(True or false)教案二Language points1. So how has this come about and does it matter?Can you tell me how the accident came about?With the use of electricity, great changes have come about.总结：come about发生, 造成, 相当于happen/take place/ occur to是不及物短语。
2.选修6 Unit4-Language points
5.Para.3
All scientists subscribe to the view that…is due to the burning of fossil fuels like… subscribe 同意；订阅；捐助
Fossil fuel:矿物燃料。 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 non-renewable energy because once they are used they have gone forever; they cannot be renewed.
高考链接
1._____with the size of the whole earth, the
bigger ocean doesn’t seem big at all. A. compare C. comparing B.when comparing D.when compared
3. Para.1: so how has this come about and…? 这是如何发生的，是否要紧?
Difficult Sentences
1.There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon. 毫无疑问地球在变暖，而全球变暖是人类活动的结果，并非是 一种无规律的自然现象。
人教版高中英语选修6 Unit 4 Section Ⅲ— Grammar
自主预习
合作学习
随堂练习
③It was in the lab that/which was taken charge of by Mr Harris that
they did the experiment. 句型:强调句中包含定语从句 分析:去掉“It was”和“that”后,句子主干为“They did the experiment
Why was it that Mary tried to help him? 是因为什么玛丽才尽力帮他的呢?
自主预习
合作学习
随堂练习
4.判断强调句的方法 判断一个句子是否是强调句,可把“It is/was”和“who/that”去掉,剩 余部分如果是一个完整的句子,那么这个句子是强调句,否则不是。 试比较下列句子,判断是强调句还是其他句型。 ①It was you and Tom that didn’t come yesterday. 句型:强调句 分析:去掉“It was”和“that”后,句子变成“You and Tom didn’t come yesterday.”结构完整,所以是强调句。 ②It is strange that they didn’t come yesterday. 句型:主语从句 分析:去掉“It is”和“that”后,句子不完整,所以不是强调句。本句 中It作形式主语,that引导真正的主语从句。
3.What’s it
been like,living in California?
4.It was during this time that he wrote this book.
5.The chair has lost one of its (it) legs.
自主预习
高二英语选修六_Unit4_写作课_公开课教学设计(三)
Unit4 写作课名师教学设计Module 6 Unit 4 Using Language--Writing教学设计1. 学情分析Learning situation:In BOOK6 UNIT4, although students have already learned some knowledge about global warming in the previous reading part, they still have some difficulties in expressing ideas on how to reduce global warming in their daily life. Besides, for the writing task, students have known something about how to write a letter of advice, but most of them still don’t know the structure of it clearly, which may cause some confusion in their writing. So they need more guidance and some proper help on how to give suggestions on such big a social problem--how to reduce global warming.2 重点难点Difficult points and important points:Students may have difficulty analyzing which key information should be included in the letter and how to make use of some good sentence-patterns of suggestions. So students may have difficulty using their own words for the output part.3 教学过程3.1 第一学时3.1.1教学目标Teaching goals:1. Language competences: Students will be able to(1)learn some new words in situations: global warming, carbon dioxide, the rise of the sea level, cause, make a difference, count.(2)learn the structure of a letter of advice.(3)learn how to express themselves by using proper sentence-patterns of suggestions.2. Learning competence:The class is based on the students-centered principle, so every student is encouraged to participate in all the steps of writing. The teacher is just a guide, who will adopt some skills to get students to think about one question in the whole class---how canwe write a letter of advice on a social problem well? After all these activities, students will be able to exchange their ideas and learn how to organize a letter of advice.3. Cognitive competence:Students will be able to think about the structure of this kind of letter critically and they will form a right attitude towards the problem of global warming, which will exert some positive effects in their daily life.4.1.2 学时重点与难点Difficult points and important points:Students may have difficulty in analyzing the key information before writing and failing to adopt some good ways to express their opinions.4.1.3 教学活动活动1【导入】Greetings＆Lead inEnjoy a short video1. What is the video about? Global warming2. What are the main causes of global warming?It is human activities that have caused global warming, for example, human beings are putting too much carbon dioxide into the air and many people are still cutting down trees in the forests.As we have seen in this video, global warming has caused many disasters in the world. It has become so serious a problem that many people around the world are concerned about it. Are you concerned about it? What can we do to help? We may do some small things to call on more people to take action, for example, we can finish a task like this.【设计说明】: 在Greetings的环节明确本节课教学目标，本节课我们要学习写一封信。
人教实验版选修6Unit4
单元重点单词1．catastrophe n. 突如其来的大灾难，大灾祸e.g.The earthquake was a terrible catastrophe.这次地震是可怕的灾难。
2．climate n. 气候；有某种天气情况的地区；风气，思潮，倾向e.g.Britain has a temperate climate.英国气候温和。
She moved to a warmer climate.她迁往气候较温暖的地方。
a climate of suspicion怀疑的风气e.g.the total destruction of a town by an earthquake地震对一小镇之彻底毁坏Gambling was his destruction.赌博把他毁了。
destroy v. 摧毁，毁坏4．speculation n. [U]推测，思考；[C]推测的结论；猜测e.g.much speculation over the cause of the air crash对飞机坠毁原因的多方推测My speculations proved totally wrong.我猜想的全错了。
5．consequence n.结果，影响e.g.Her investment had disastrous consequences.她的投资结果很惨，血本无归。
be ready to take/suffer/bear the consequences of one’s actions准备承担自己行动的后果It is of no consequence.这无关紧要。
He may be a man of consequence in his own country, but he’s nobody here.他在自己的国家中尽管举足轻重，但在此地却毫不显眼。
常用搭配：in consequence (of sth.)由于（某事物）的缘故；因而e.g.She was found guilty, and lost her job in consequence (of it).他被判有罪，因而失去了工作。
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• Part 3 •List two different attitudes among scientists towards global warming.
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Match the parts with the writing skills:
Part4 Part 2 Part3
Using a question,leavingreaders to think over the issue
Match the parts with the main ideas:
• Explain how global warming Part 2 comes about. Part 1 • Introduce the topic of global warming.
It’s up to readers to think and decide Part 4 whether people should do something about global warming or not.
• Giving examples, using graphs, explanation
• Giving examples, making contrast (comparison) • Raising a question
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Part 1
Detailed reading Read the 2 graphs:
naturally and continually "renew" themselves.
4
Energy sources Wind Coal
Renewable/non-renewable renewable 可再生的
non-renewable 不可再生的
non-renewable non-renewable renewable renewable
Introduction
Body Conclusion
Para.1 Para.2-6
Para.7
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★ ★★
Look through the main text:
Introduction
Para. 1
I
Body
II
Conara. 7
III
Para. 6
13
★★★
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Global warming A rising population The use of energy reasons Greenhouse gases Burning of fossil fuels (coal, oil and natural gas) Agricultural industry Destruction of forests
How does this global warming come about? fuels --- produce huge Man burns fossil ____ quantities of greenhouse gases, esp. heat ___________ carbon dioxide --- the gases trap h____ from the sun and therefore w____ warm the earth.
Fast Reading
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?
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What is the writing style? A. Expositive (说明文) B. Practical (应用文) C. Argumentative(议论文) D. Narrative(记叙文) The organization of an expositive essay: A title
Unit 4
Global warming
Words study
Pre-reading & reading I
1
Warming up Do you know anything that consume(消耗) energyin the home and the class? lights, television, computer, washing machine, hairdryer, camera, …
★ ★★
The 2 graphs are used to explain points by providing . evidence evidence or argument?
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Detailed reading
★★★
Read something more about the 2 Thegraphs: 1st graph shows the globalt
plants, especially during cold weather.
How does it work?
trap the heat from the sun
keep it from escaping
warm
A greenhouse
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Greenhouse gases Greenhouse
Greenhouse Effect
Do you know any kind of energy resource?
wind
coal
oil
nuclear power
solar power
water
Renewable Energy Renewable energy sources, such as
the sun, wind, rain, and plant matter,
Oil
Nuclear power Sun Water
What is the greenhouse made and used for?
Greenhouse
Greenhouse Effect
温室效应
A greenhouse is made of glass and is used for growing