选修六Unit4Globalwarming

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选修六Unit4 Global warming

A greenhouse is made of ______ glass and is used for ______________, growing plants especially during _____weather. cold
green house effect
Pre-reading
Thank you See you
Help me, help you, help everyone.
Return GREEN to the earth!
Part3(6-7) Dr. Janice Foster pessimistic
George Hambley
optimistic
Part3(6-7) Dr. Janice Foster George Hambley It will cause: positive thing, It is a _______ floods droughts asevere rise in storms the see level pessimistic optimistic
LOGO
Things that use or give energy in oources of energy mineral resources oil
solar energy
…
sources of energy
solar energy
renewable or non-renewable
How has global warming come about?
Fossil Fuels:
coal oil gas
●●●●●●
produce
carbon dioxide
global warming

选修六 Unit 4 Global warming Word版含答案

Unit 4 Global w arming一、刷黑板——词汇全听写(先过识记默写关)Ⅰ.阅读词汇(英译汉)[第一屏听写]1．graph n．图表；坐标图；曲线图2．renewable adj.能再生的；可更新的3．phenomenon (复数-ena) n. 现象4．fuel n. 燃料5．byproduct n. 副产品[第二屏听写]6．per prep.每；每一7．catastrophe n. 大灾难；浩劫8．drought n. 旱灾；干旱9．individual n. 个人；个体adj.单独的；个别的10．can n. 容器；罐头[第三屏听写]11．microwave n．微波炉；微波12．presentation n. 显示；演出13．nuclear adj.核的；核能的；原子核的14．commitment n. 承诺；交托；信奉15．motor n. 发动机16．outer adj.外部的；外面的Ⅱ.高频词汇(汉译英)[第四屏听写]1．greenhouse n．温室；花房2．quantity n. 量；数量3．tend v i.趋向；易于；照顾v t.照顾；护理4．data n. 资料；数据5．trend n. 趋势；倾向；走向6．consume v t.消费；消耗；耗尽；吃完[第五屏听写]7．subscribe v i.同意；捐赠；订阅v t.签署(文件)；捐助8．oppose v t.反对；反抗；与(某人)较量9．opposed adj.反对的；对立的10．mild adj.温和的；温柔的；淡的11．environmental adj.环境的12．flood n. 洪水；水灾[第六屏听写] 13．consequence n．结果；后果；影响14．state v t.陈述；说明15．range n. 种类；范围16．glance v i.看一下；扫视n. 一瞥17．steady adj.平稳的；持续的；稳固的18．steadily ad v. 平稳地；持续地[第七屏听写]19．tendency n．倾向；趋势20．widespread adj.分布广的；普遍的21．economical adj.节约的；经济的22．average adj.平均的23．existence n. 生存；存在24．advocate v t.拥护；提倡；主张25．pollution n. 污染；弄脏[第八屏听写]26．growth n．增长；生长27．electrical adj.电的；与电有关的28．casual adj.随便的；漫不经心的；偶然的29．circumstance n. 环境；情况30．refresh v t.使恢复；使振作31．educator n. 教育工作者；教育家32．contribution n. 贡献[第九屏听写] 33．disagreement n．分歧；不一致34．random adj.胡乱的；任意的35．quantities_of 大量的36．even_if 即使37．keep_on 继续38．so_long_as 只要39．come_about 发生；造成[第十屏听写]40．go_up上升；增长；升起41．subscribe_to 同意；赞成；订购42．be_opposed_to 反对……43．result_in 导致44．on_the_whole 大体上；基本上45．on_behalf_of 代表……一方；作为……的代言人46．put_up_with 忍受；容忍47．and_so_on 等等二、刷清单——热身自盘点(再过基本应用关) (一)核心单词一、过重点单词——纵引横联超人一点1．quantity n ．量；数量[教材原句] The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere.当我们在大气层中增加了大量额外的二氧化碳时，问题就来了。

选修六 Unit 4 Global warming Word版含答案

课时规范训练(二十九)Ⅰ.阅读理解AFor a long time the packaging industry has been attacked for using what is thought as large amounts of packaging, choosing materials which are felt to have high impacts on the environment, and for being responsible for littering and overflowing landfills. In a study performed by WRAP, one of the first to study food waste in the UK in 2012，the most frequent responses when consumers were asked about packaging were “uses too much material” and “bad for the environment”. The conclusio ns of these reports highlighted that the degree of the problem has been largely underestimated: at least 30% of food produced in the world is wasted. These figures are similar no matter if you are in the developed or developing world.However, two publ ications from crossindustry work groups were published recently, and have managed to reset the discussion to take into account the benefits of packaging for sustainability(可持续性). The first publication，“The Global Protocol on Packaging Sustainability”， describes an agreed common approach towards measuring packaging sustainability metrics(指标), so that the industry is not competing based on the definition of a metric, but rather competing based on performance. The second was, “Packaging in the Sustainability Agenda, A Guide for Corporate Decision Makers”，which highlighted the contributions of packaging to the three aspects of sustainability：packaging protects products and prevents waste (environmental aspect); packaging enables efficient business conduct (economic aspect); and packaging provides consumers with the benefits of the products it contains(social aspect)．Packaging performs indeed a wide variety of functions throughout the value chain and contributes to reducing food waste by protecting ingredients(佐料)and products during transportation and by delivering familysized packages. Food waste could be avoided for single households if they are provided with the choice of pack sizes meeting their consumption patterns and are not forced to buy larger packs that they may not be able to finish before the useby date. Despite the fact that smaller sized packs use more packaging，the fact that food waste is reduced would nevertheless decrease overall environmental impacts of the packed product.1．It has long been thought that ________.A．larger quantities of food are wasted in developed countriesB．WRAP is the first authority to study food waste in the UKC．packaging does great harm to the environmentD．packaging offers a powerful means to reduce food waste2．According to the two publications in Paragraph 2，________.A．an agreement should be reached on measuring packaging sustainabilityB．the industry should compete based on the definition of sustainability metricsC．smaller sized packs promote less packaging and purchase among consumers D．sustainable packaging is ecofriendly, economically practical and socially beneficial3．The author's attitude towards packaging is ________.A．approving B．negativeC．casual D．doubtful【语篇导读】本文介绍了包装对环境是有害的。

高中英语人教新课标选修六 Unit 4 Global warming知识点复习

Unit 4 Global warming核心单词1. subscribevi.同意；捐赠；订阅vt.（签署）文件；捐助常用结构：subscribe to ... 同意，赞许；（在文件等下面）签名，署名subscribe sth. to ... 捐助subscribe to/for ... 订阅；订购(书籍等)He did not subscribe to my proposal.他不赞同我的建议。

He subscribed a large sum to the relief fund.他向救济基金捐赠巨资。

He subscribed his name to a petition. 他在请愿书上签名。

高手过招翻译句子①只有疯子才会同意这样的观点。

②我订了一份《妇女周刊》。

答案：①No one but mad people would subscribe to such views.②I subscribed to a Weekly Women’s magazine.2. tendvt. & vi.（常与to连用）有某种倾向；有……的趋势；走向；趋向；朝向；照管，照料；看护People under stress tend to express their full range of potential.处于压力下的人容易发挥自己全部的潜力。

He tends to pitch the ball too high.他往往把球掷得过高。

Prices are tending upward. 物价在上涨。

The woman stayed at home to tend her child.那个妇女呆在家里照料她的孩子。

高手过招单项填空I never forget the days when I was by the villagers when I was wounded. Tended B. observed C. monitored D. Cared解析：选A。

选修六-Unit-4-Global-Warming-教案设计

选修六 Unit 4 Global Warming 教案Warming up1. Global warmingWhat caused it? ( lead...to..)The harmful effects of global warmingWhat should we do to deal with the problem?2. Brainstorming: We depend on energy to many things in our daily lives. We consume energy every day. Consumer--Energy lights our cities, heat our room, transportation, equipment, ...3. 必备句子1 An energy source is renewable when supplies of it never run out and non-renewable when one day they will run out.Renewable sources-- windmills, solar ,hyydro-electricnon-renewable sources --coal power station, oil refinery,nuclear power plant run out, run out of, use up4. A greenhouse is made of ______and is used for ______________, especially during _____weather.Be made of, be made from, be made up of, be made intoBe used for doing sth, be used to do sth, be used to doing sthReadingStep 1. Pre-readingIn the atmosphere surrounding the earth there are gases called greenhouse gases.（画画）4. Greenhouse EffectGlobal warmingGr eenhouse gases tr appe d the heat fr o m the sun,whic h causes the tempe r atur e of ea r th goes up.Step 2 . SkimmingSkim the title:THE EARTH IS BECOMING WARMER – BUT DOES IT MATTER?1) What is the main topic?A. The earth.B. Global warmingC. Becoming warmer doesn’t matter.2) Where does this article most probably come from?A. NewspaperB. NovelC. Magazine3) Who wrote the article?4) What is the name of the magazine?Tip: In English, some nouns begin with a capital letter(大写字母), such as names of people and places, title s of magazines, newspapers, stories and books, people’s titles(头衔), etc..必背句子2—Earth Care’s Sophie Armstrong explores these questions.Step 3 Careful reading1) What causes global warming?(para 1)= How has this come about？come about表示“发生、产生”，多指事情已经发生了，但还不知道为什么，常用于疑问句和否定句，例如：happen常指具体事件的发生，特别指那些偶然的或未能预见的“发生”。

新人教选修六-Unit-4-Global-warming

企业参与国际环保合作与交流
参与国际环保组织
加入国际环保组织，与其他企业和国家共同研究和应对全球变暖
问题。
分享经验与技术
积极分享在应对全球变暖方面的经验和技术，促进国际间的合作
与交流。
倡导全球环保行动
通过参与国际会议、发表声明等方式，倡导全球各国共同采取行
动应对全球变暖。
05
个人在应对全球变暖中行动与贡献
绿色出行
尽量选择步行、骑自行车或乘坐公共交通工具，减少私家车出行。
垃圾分类
积极参与垃圾分类，促进资源回收利用，减少垃圾对环境的污染。
参与公益活动，传播环保理念
参加环保组织
加入环保组织或志愿者团队，参与环境保护的公益活动。
倡导环保行动
在社区、学校或工作场所倡导环保行动，鼓励更多人参与环保事业。
长期战略
一些国家还制定了长期的气候变化应对战略，如实现碳中和、净零排放等目标，以及发展可再生能源、提高能源效率等政策措施。
国际组织在应对气候变化中作用
联合国环境规划署（UNEP）
作为全球环境问题的权威机构，UNEP在推动全球应对气候变化方面发挥着重要作用。它协助各国制定和执行气候政策，促进可持续发展和绿色经济。
《京都议定书》
作为《联合国气候变化框架公约》的补充条款，于1997年通过，2005年正式生效。议定书规定了37个工业化国家（附件B国家）在2008-2012年间的温室气体减排目标，并要求这些国家通过国内政策和国际交易等方式实现减排目标。
各国减排承诺和行动计划
国家自主贡献（NDCs）
各国根据本国国情提出的应对气候变化的行动目标和政策措施。截至2023年，已有190多个国家提交了国家自主贡献文件，这些文件将成为《巴黎协定》下各国减排行动的基础。

新人教版选修6Unit4Globalwarming知识点课件

5. It takes a lot of energy _t_o__m_a_k_e___(make) things from new materials, so，if you can，buy things __m_a_d__e__(make) from recycled materials. 用新材料来做东西要花费大量的能源，因此，只要有可能，就买那些用回收材料制成的物品吧。
this view反对这种观点
a quantity of/quantities of/a lot of/lots of
8. ________________________ fuel大量的燃料 9. _o_n__b_e_h_a_lf__o_f _ my school代表我的学校 10. _o_n__th_e__w_h_o__le__大体上；基本上 11. _a_n_d__s_o_o_n___等等 12. _s_o_/_a_s_l_o_n_g_a_s__只要 13. _e_v_e_n__if_/t_h_o_u_g_h__尽管；即使 14. _a_s_a__c_o_n_s_e_q_u_e_n_c_e_/_a_s_a__re_s_u__lt_ 结果；因此
2. He walked down the road, _c_a_s_u_a_l_ly__(casual) swinging his bag. 修饰非谓语swinging，应用副词。
3. I admire Edison a lot because of his great _c_o_n_t_ri_b_u_t_io__n_ (contribute) to the world. 空格前有形容词great修饰，所以这里应填名词，great contribution表示“伟大的贡献”。

人教版高中英语选修6《Unit4Globalwarming》教案

人教版高中英语选修6《Unit 4 Global warming 》教课设计人教版高中英语选修6《 Unit 4 Global warming 》教课设计【一】教课准备教课目的Teaching Aims:In this class Ss will be able to① practice skimming and scanning for information needed like what are the two concerns and what are Earth Cares suggestions.② Master the phrases such as: put up with, so long as, and so on, makea difference, have no effect on , by making sentences or by using theminto the post er.③ bee aware of the serious effects of global warming and the importance of saving energy to be environmentally friendly.④Summarize the points according to their understanding.⑤work together to design a poster by using the suggestions in thearticle.教课重难点Teaching Difficulties:Students may find it hard to add more suggestions about how to save energy in our daily life and to summarize the points according to those suggestions. Students maynot know clear what is a poster and how to design an attractive and persuasive poster in short time.教课过程Teaching Procedure:Step1. Lead-in (inpidual collective work)1.Teacher begins the class by asking: Have you ever seen the movieThe Day After Tomorrow? and then let students enjoy a short movieclip with the following two questions:①What kinds of disasters have you seen in the film?②Can you guess how they came about (happen)?2.introduce the topic:global warming. And then have a further question:①What other disaster will be caused by global warming?【 Designing Purpose 】To arouse students interest by watching the movie clip and educe thetopic, that is global warming. And then by showing a lot of pictures,make students know and understand the terrible effects of global warming, thus making preparations for promoting environmental protection.① who is the writer?② what are his two concerns?Scanning: Read the second letter and answer the following questions:①Does Earth Care agree with Ouy ang Guangs opinion thatinpiduals can have no effect?②what are Earth Cares suggestions?③Can we carry those suggestions out? Why?【Designing Purpose 】To help the students grasp the main information of the two letters by skimming and scanning. While stud ents get the answer to question1,ask them to find the supporting sentence : Together, inpiduals can makea difference. We do not have to put up with pollution. Guess themeanings of the two italicized phrases according to the surroundings andtheir understanding.Step3. Post reading (Pair work)1.Discussion: Make students discuss whether they can find moreways or suggestions about reducing carbon dioxide and saving energy inour daily life.Suggested ways:1)Use less hot water 7)Change a light bulb 8)Try car sharing2)Take a shower instead of a bath3)Buy fresh food instead of frozen4)Buy things that are actually in season5)Eat less high fat food like KFC and Macdonald6)Clean filters(过滤器) on your air conditioner.【Designing Purpose 】To cultivate students to work in pairs and learn to summarize an opinion and share the knowledge of saving energy in daily life. To practice theability of understanding the meaning of new words and expressionsto remove the obstacles in reading.Step4. learn what is a poster (collective work)Know what is a poster by giving a simple sample and try to getthe structure.【Designing Purpose 】To know clearly a poster should have a heading, contents and an eye-catching slogan, which will make it easy for students to design anacceptable poster.Step5. Prepare the poster (inpidual group work)1. Decide our content s:①Choose and decide five most important suggestions. (inpidual work)②W rite them downon your paper and try to makethem persuasive by using imperativesentences. (inpidual work)③pare your list with your group membersand decide five for your poster. (groupwork)2. Slogan and heading: showing sample posters to help them decide aheading and a slogan for your poster.【Designing Purpose 】This is the most important part of this writing task. Students willbe able to summarize and pose sentences by choosing and organizingwhat they want to say, thus improving their writing ability and the processof output based on what they have learned in reading part. And by learning some sample posters to help them decide their own heading and slogan.Step6. produce show time (group work)With the heading, slogan and ways, students will not find it difficultto make a poster. What theyShould pay attention is how to illustrate their poster and makeit more attractive. And then choose several pairs to represent their posters.【Designing Purpose 】Making the poster will improve their cognitive capability of theimportance of environmental protection and at the sametime they can enjoya sense of achievement in show time. And they make believe that inpiduals can really make a difference.课后习题Homework ：Put their poster up around the school to make more students know about energy saving and global warming. Write a short passage to tell othershow to solve the problem of global warming based on the suggestionsyou have collected and send it in your zone or blog.板书板书设计： tsunami/ flood/More suggestions: make full use of paper/ use both sides ofpaper reuse waterlimit the time of using private carssend emails instead of cardsuse less hot wateralways take a shopping bag with youdrive a bicycle but not e-bicycle人教版高中英语选修6《Unit 4 Global warming 》教课设计【二】教课准备教课目的Teaching goals教课目的1. Target language目口号言a.要点词汇和短语energy, light (v.), heat (v.), renewable, non-renewable, fuel, blame, run outb.社交用语I dont think so.I dont think thats right.Im afraid you are wrong.2. Ability goals 能力目标Enable the students to talk about different sources of energy andexpress their own ideas.3. Learning ability goals 学能目标Help the students learn how to give their ideas about the use of energy.教课重难点Teaching important points 教课要点Enable the students to express agreement and disagreement.Teaching difficult points 教课难点Enable the students to learn how to express agreement and disagreement.教课过程Step ⅠRevisionT:Good morning, everyone.Ss: Good morning, teacher.T: Sit down, please. Before class, Ill check your homeworkfirst.Mary, would you read your homework to us?Check the students homework and have a discussion with the studentsabout the mistakes Mary made. Let the students have a clear understanding about the mistakes and then correct them.Step ⅡWarming upT: As we all know,we depen d on energy to do many things in our daily life. Some people even say we could do nothing without energy. Can youtell me what we use energy for?Sa: Energy lights our cities.Sb: Energy heats our buildings.Sc: Energy entertains us. With the help of electricity, people havegot a lot of fun from watching TV, playing puters and so on.Sd: There are many other electrical appliances that make our life more convenient and fortable such as washing machines, microwaves,air conditioners and so on.Se: Today energy also helps people realize many so-called dreams inthe past. For example, people can fly from one place to another by planewhich runs on energy.Sf:Its true. In fact, not only planes but also cars, ships and trains run on energy.T:Well done. All that youve just said is right. So it seems that energy plays a very important role in the modern world. Then where does all theenergy e from? Open your books and turn to page 25. Look at thepictures on this page. They may help you find out the answers.After a while.T:Whod like to tell us your answers?Sg: Wind power.Sh: Coal power.T:Right. Is there any difference between them?Si: Yes. Wind will never run out while coal is a limited source.T:Its true. As we know, an energy source is renewable when suppliesof it never run out while some supplies，such as coal, will definitelyrun out one day. Energy of this kind is called non-renewable sources.Please think of as many sources as you can and decide which energy sourceson your list are renewable and which are non-renewable.If necessary, give some words related to the pictures which might bedifficult for the students such as oil refinery,hydroelectric power and so on.The teacher should also collect as much information about differentsources of energy as possible and show it to the students in class through a puter. In this way, the students will bee more interested in this topic and their knowledge on this aspect will be enlarged.T: Fromwhat weve just talked about, it is clear that energy does a lot of good to every coin has two sides. Is there any negative effect of using energy?Sa: use too much energy which is resulting in an increase in carbonis how the global warming es about.Sb: Andmeanwhile it pollutes the environment.T: Itstrue. Many people have realized the problem. Next well do some listeningpractice on this topic. Lets see what other people think of this issue.Thestudents are asked to read the questions quickly to find out the listeningpoints first.Then listen to the tape twice and give the correct answers.T: Nowplease turn to page 31. Lets do listening. Before you listen to the tape,please read fast the statements in Exercise 1 to find out thelistening much attention to the key points while listening.Play thetape for the first time. Help the students get a generalunderstanding aboutthe dialogue. The students listen and try to finishExercise 1. Play the tapeagain, train the students ability to spot specific information and understandthe implication in the dialogue.The students listen and finish Exercise 2.Severalminutes later.T：Have you finished the exercises?Ss: Yes.T: OK,lets check your answers.Explainsome difficult points if necessary.T: Nowread what Professor Chen and Li Bin say. Work in groups. Discuss who you agreewith and give reasons. Use some of the phrases listed in Exercise 2 or anyothers you know.课后习题Homework1.Review the new words and expressions you learned in this class.2.Preview Reading.。

选修六Unit4 Globalwarming]

Fast Reading
Scanning
1.Who wrote the magazine article? What is the name of the magazine? 2.What are the names of the three scientists mentioned in the article? 3.What are the two graphs about?
3.What are the two graphs about? Graph 1 shows the Graph 1: temperature increase of one degree Fahrenheit between 1860 to 2000. Graph 2 shows the carbon dioxide content in the atmosphere from 1957 to 1997.
Unit 4
Global Warming
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
The effects of global warming
• Positive effects:
1 make plants grow faster; 2 crops will produce more; 3 make life better
Which is the most important to a country?
My handwriting can not be compared with my father‟s. 我的书法不能与我父亲的相比。 2) 喻为; 比拟 compare…to… 表示“把…比做…(异类相比, 比喻)” 如：

高考英语：选修6+Unit+4 Global+warming+Word版含答案

[单词拼写应用]1．(2017·全国卷Ⅱ)Freddy was an average student, but not an average person.普通的2．(2017·天津卷)I sent letters to everyone I knew, telling them about my project.It worked perfectly.Donations began flooding in from hundreds of people.大量涌入[短语多维应用]1.quantity n．量；数量；数目，数额a large/small quantity of大量/少量的large quantities of大量的；许多的in quantity大量地put emphasis on quality rather than on quantity重视质量而不是数量huge quantities of food大量的食物a small quantity of water少量的水[基础练习]——单句语法填空①a.With more and more forests cut down, large quantities of soil are being washed (wash) away now.b．With more and more forests cut down, a large quantity of soil is being washed (wash) away now.②We can offer you a better price if you can buy it in quantity.[链接写作]——词汇升级(普通表达) Before the exam, I spent a lot of time in preparing for it.Otherwise, I wouldn't have succeeded in passing the exam.(高级表达)Before the exam, I spent a large quantity of/a great deal of time in preparing for it.Otherwise, I wouldn't have succeeded in passing the exam.[名师点津](1)a quantity of或quantities of后既可接可数名词也可接不可数名词。

高中英语选修六unit4 global warming要点解析

高中英语选修六unit4 global warming要点解析随着工业化、城市化的发展，人类对环境的破坏日益严重，全球变暖成为一个备受关注的问题。

在高中英语选修六的教学中，unit4 global warming是一个重要的话题，涉及到了环境保护、气候变化、能源利用等多个方面。

本文将从以下几个方面进行解析。

一、词汇与短语在学习unit4 global warming的过程中，学生需要掌握一些与环境保护、气候变化、能源利用等相关的词汇和短语，例如：1. global warming：全球变暖2. climate change：气候变化3. greenhouse gases：温室气体4. carbon dioxide：二氧化碳5. fossil fuels：化石燃料6. renewable energy：可再生能源7. solar power：太阳能8. wind power：风能9. hydroelectric power：水力发电10. deforestation：森林砍伐二、文章结构在学习unit4 global warming的文章时，学生需要掌握文章的结构，了解作者的写作意图和思路。

一般来说，文章的结构包括开头、主体和结尾三个部分。

1. 开头：一般用一两句话引出话题，概括文章主要内容，引起读者的兴趣。

2. 主体：主要分为两个部分，第一部分阐述全球变暖的原因和影响，第二部分介绍如何减缓全球变暖的措施。

3. 结尾：一般用一两句话总结文章内容，表达作者的态度和观点。

三、文章内容在学习unit4 global warming的文章内容时，学生需要掌握以下几个方面。

1. 全球变暖的原因：全球变暖的主要原因是温室气体的排放，其中二氧化碳是最主要的温室气体。

二氧化碳的排放主要来自于化石燃料的燃烧、工业生产、交通运输等活动。

2. 全球变暖的影响：全球变暖会导致海平面上升、极端天气增多、生物多样性减少等问题，对人类和自然环境都会带来严重的影响。

人教版选修六Unit 4 Global warming教案

人教版选修六Unit 4 Global warming教案人教版选修六unit-4-global-warming教案人教版选修六unit_4_global_warming教案本单元以globalwarming居多线，意在通过单元教学并使学生经过思索、自学，认识到全球暖化的起因和它所增添的种种后果。

同时引导学生进一步阐释地球所遭遇的其它轻微问题，唤起学生的环保意识。

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。

1.1warmingup通过直观的图片，并使学生对能源的用途和种类存有一个基本的介绍。

使学生对当今人们研发和采用能源以及随之而来的种种影响存有更深一步的思索和重新认识，从而为本单元主题globalwarming并作了较好的铺垫。

1.2pre-reading是reading的热身活动。

通过组织学生对这些问题的讨论、回答，激活他们头脑中相关的内容模式，为下一步阅读做好准备。

由于globalwarming是当今世界的一个热门话题，学生已从多种渠道对此有了很多的了解，因此教师可以在安排预习作业时让学生分组做aprojectonglobalwarming,这样既符合了新课程的要求――体现学生的主体地位，激发学生自主学习的热情，又能得到很好的教学效果。

总结概括的能力。

最后一项建议学生在读整篇文章后，认真思索并践行自己的观点：“weshoulddonothingaboutglobalwarming”还是“weshoulddosomethingtodecreasethespeedofglobalwarming”，并利用所学科学知识展开分组辩论。

此项活动意在唤起学生的自学热情并彰显学生在课堂中的主体边线。

1.5learningaboutlanguage分词汇和语法两部分。

词汇部分设计了两项练习，一项是具有一定情境的10个句子，引导学生加深对新词汇的理解和记忆。

高中英语新课标选修六Unit4Globalwarming课文原文

THE EARTH IS BECOMING WARMER-BUT DOES IT MATTER?During the 20th century the temperature of the earth rose about one degree Fahrenheit. That probably does not seem much to you or me, but it is a rapid increase when compared to other natural changes. So how has this come about and does it matter? Ea rth Care’s Sophie Armstrong explores these questions.There is no doubt that the earth is becoming warmer (see Graph 1) and that it is human activitythat has caused this global warming rather than a random but natural phenomenon.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. Some byproducts of this process are called "greenhouse" gases, the most important one of which is carbon dioxide. Dr Janice Foster explains: "There is a natural phenomenon that scientists call the 'greenhouse effect'. This is when small amounts of gases in the atmosphere, like carbon dioxide, methane and water vapour, trap heat from the sun and therefore warm the earth. Without the 'greenhouse effect', the earth would be about thirty-three degrees Celsius cooler than it is. So, we need those gases. The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere. It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up."We know that the levels of carbon dioxide have increased greatly over the last 100 to 150 years. It was a scientist called Charles Keeling, who made accuratemeasurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. He found that between these years the carbon dioxide in the atmosphere went up from around 315 parts to around 370 parts per million(see Graph 2).All scientists accept this data. They also agree that it is the burning of more and more fossilfuels that has resulted in this increase in carbon dioxide. So how high will the temperature increase go? Dr Janice Foster says that over the next 100 years the amount of warming could be as low as 1 to 1.5 degrees Celsius, but it could be as high as 5 degrees.However, the attitude of scientists towards this rise is completely different. On the one hand, Dr Foster thinks that the trend which increases the temperature by 5 degrees would be a catastrophe. She says, "We can't predict the climate well enough to know what to expect, but it could be very serious." 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. On the other hand, there are those, like George Hambley, who are opposed to this view, believe that we should not worry about high levels of carbon dioxide in the air. They predict that any warming will be mild with few bad environmental consequences. In fact, Hambley states, "More carbon dioxide is actually a positive thing. It will make plants grow quicker; crops will produce more; it will encourage a greater range of animals - all of which will make life for human beings better."Greenhouse gases continue to build up in the atmosphere. Even if we start reducing the amount of carbon dioxide and other greenhouse gases, the climate is going to keep on warming for decades or centuries. No one knows the effects of global warming. Does that mean we should do nothing? Or, are the risks too great? WHAT CAN WE DO ABOUT GLOBAL WARMING?Dear Earth Care,I am doing a project on behalf of my school about global warming. Sometimes I feel that individuals can have little effect on such huge environmental problems. However, 1 still think people should advocate improvements in the way we use energy today. As I'm not sure where to start with my project, I would appreciate any suggestions you may have.Thank you!Ouyang GuangDear Ouyang Guang,There are many people who have a commitment like yours, but they do not believe they have the power to do anything to improve our environment. That is not true. Together, individuals can make a difference. We do not have to put up with pollution. The growth of the greenhouse gas, carbon dioxide in the air actually comes as a result of many things we do every day. Here are a few suggestions on how to reduce it. They should get you started with your project.1 We use a lot of energy in our houses. It is OK to leave an electrical appliance on so long as you are using it - if not, turn it off! Do not be casual about this. So if you are not using the lights, the TV, the computer, and so on, turn them off. If you are cold, put on more clothes instead of turning up the heat.2 Motor vehicles use a lot of energy- so walk or ride a bike if you can.3 Recycle cans, bottles, plastic bags and newspapers if circumstances allow you to. It takes a lot of energy to make things from new materials, so, if you can, buy things made from recycled materials.4 Get your parents to buy things that are economical with energy - this includes cars as well as smaller things like fridges and microwaves.5 Plant trees in your garden or your school yard, as they absorb carbon dioxide from the air and refresh your spirit when you look at them.6 Finally and most importantly, be an educator. Talk with your family and friends about global warming and tell them what you have learned.Remember - your contribution counts! Earth Care。