1、They shouldnt have done it. They are to blame.Perhaps/ Maybe they should / ought to Why dont you do something about it? 2. 语法 it的用法 （The use of “it”） （2） It is human activity that has caused this global warming.It was a scientist called Charles Keeling who made accurate measurements of the amount of
2、 carbon dioxide in the atmosphere from 1957 to 1997.3. 词汇及短语必会: come about subscribe to quantity quantity of tend go up result in oppose opposed be opposed tostate range even if keep on glance steady tendency widespread on the whole average on behalf of put up withso long as and so on circumstance 了
3、解: consume graph random phenomenon subscribe fuel per data trend catastrophe flood mild consequence existence outer advocate commitment polution growth electrical casual motor can microwave refresh educator contribution presentation nuclear disagreement 认识 renewable greenhouse Fahrenheit Sophie Arms
4、trong fossil byproduce Janice Foster methane Celsius Charles Keeling measurement drought famine George Hambley environmental environmentalist ecomomical hectare individual appliance imperative heading slogan 学习策略目标1. 认知策略：总结语言材料中有关it的用法，并结合语境加以应用。2. 自主合作探究策略：在各个学习活动中进行结伴或分组讨论，结对或组内交流、总结，共同研究发现问题、解决问
5、题，及时总结学习收获本单元的学习的主要的语言知识：重点动词、动词短语、其它常见表达方式和新出现的句子结构。3. 交际策略：以学生同伴、小组活动培养学生交际策略，学会表达建议和帮助。4. 资源策略：学习有效使用课外资源，如网络或图书馆查找有关全球变暖”、“能源的种类”和“节约能源”等方面的知识，树立“节约能源、保护环境”的主人翁意识。情感态度目标教育学生清醒认识“全球变暖”的事实，使其树立节约能源、保护环境的意识。教学内容建议教学活动建议单元整体教学分析 本单元的中心话题是人类当今面对的环境问题，主要探讨了“全球变暖”和“节约能源”等方面的问题。由于人类过多使用不可再生能源，大气中二氧化碳的含量
6、逐年增加，导致全球气温上升。通过学习本单元，让学生能了解能源分为“不可再生能源”和“可再生能源”，帮助学生树立“节约能源、保护环境”的主人翁意识。 Warming up要求学生列举家中，学校或其他地方使用能源的物体，指出这些物体的来源，尽可能多地列出不同的能源并把它们分为两类：可再生能源与不可再生能源。 Pre-reading这部分首先介绍什么是温室，它有什么作用，然后要求学生讨论大气中温室气体的作用。该部分的讨论有利于学生预测课文内容和理解阅读课文中的“温室效应”。 Reading 这部分是一篇杂志文章，主要讲述了地球温度上升的现象和原因。科学家认为这种变化是人类燃烧矿物燃料所致。对于地球升
7、温，科学家们有不同的看法。有些科学家认为，这个问题很严重。地球升温会导致海水上涨，风暴，干旱，饥荒，物种毁灭和疫病等。另一方面，其他科学家认为，地球升温有利于改善人类生活。最后，文章以开放性的问题结尾要求读者思考：对于全球变暖，人类要不要采取措施？紧扣主题并与题目要相呼应。 Comprehending这部分提供了三项练习。练习1是 首先就作者，杂志名称，文中出现的曲线图等内容提问，并要求学生概括文章的主题。练习2要求学生细读课文，并判断所给句子的是否符合课文内容。练习3要求学生小组讨论：在讨论的基础上，把全班分为正方和反方，举办一个辩论会。 Learning about Language词汇部
8、分设置了三项练习。练习1是分辨生词在文中的含义。练习2是运用课文中所学的生词来完成与“全球变暖”话题相关的一些句子。练习3让学生运用强调句型进行复述或表达自己的观点。语法部分让学生通过对比课文中it作强调作用的句子与其他句子的区别，发现并熟悉强调结构句型及其规律。 Using Language这部分综合运用听说读写的能力。“读和写”部分是欧阳光给关爱地球组织杂志写电子邮件，请求帮助。回信指出，群策群力，问题可解，并提供了几个具体措施。阅读之后，让学生就文中的建议进行讨论并提出更多的建议。为写的任务提供充分的材料。“听与说”是学生与教授的一段对话，讨论能源的使用问题，并学习表达“同意”或“不同意
9、”的交际用语。教学内容整合建议：1. 将Warming Up，Pre-reading，Reading与Comprehending整合在一起以“阅读课”的形式体现。2. 将Learning about Language中的Discovering useful structures与Workbook中的Using structures整合在一起上一节“语法学习课”。Warming up and Reading词汇知识基础要求（可以通过教师讲授与学生自主探究相结合的方式落实重点词汇）1consume vt.（1）to use sth, esp fuel, energy, time,goods etc
10、 eg. The electricity industry consumes large amounts of fossil fuels.（2） to eat or drink stheg. Before he died he had consumed a large quantity of alcohol.弹性要求：comsumer n. a person who buys goods or uses services. Health-conscious consumers want more injection about the food they buy.2. renewable ad
11、j. usually before noun renewable energy replaces itself naturally, or is easily replaced because there is a large supply of iteg. renewable energy such as solar powereg. an industry based on renewable resources3. come about to happenCan you tell me how the accident come about ?4. graph n. C a planne
12、d drawing, consisting of a line or lines, showing how two or more sets of numbers are related to each other eg. The graph showing how house prices have risen since the 1980s.5. random adj. done, chosen, etc without sb thinking or deciding in advance what is going to happeneg. the random killing of i
13、nnocent people 对无辜者的随意杀戮a random sample / election （ in which each thing has an equal chance of being chosen）The information is processed in random order.The winning numbers are randomly selected by computer.= it introduced an element of randomness to the situation.She opened the book at random （ no
14、t at any particular page） and started reading.6. phenomenon n. a fact or an event in nature or society, esp one that is not an event in nature or society, esp one that is not fully understood. （ pl） phenomena eg. cultural / natural / social phenomenaTerrorism is a phenomenon of the 20th century.7. s
15、ubscribe to （1）to agree with or support an opinion, a theory, etc.eg. The authorities no longer subscribe to the view that disabled people are unsuitable as teachers.（2） to pay money, normally once a year, to receive regular copies of a newspaper, magazine, etc. eg. Which journals does the library s
16、ubscribe to ?（3） to pay money regularly to be a memble of organization or to support a charity.eg. He subscribes regularly to Red Cross Society of China.8. fuel n. U&C any material that produces heat or power, usually when its burntfossil fuel : fuel such as coal or oil, that was found over millions
17、 of years from the remains of animals or plants 矿物燃料eg : solid fuel ; nucleat fuels; a car with high fuel consumption9. quantity n. U&C（1）an amount or a number of sth eg. a large / small quantity of sth eg. Enormous / Vast/ Huge quantities of food are laid on the table.eg. The police found a quantit
18、y of drugs at his home. = A quantity of drugs was found at his home by the police. （2） the measurement of sth by saying how much of it there is eg. The data is limited in terms of both quality and quantity.10. tend vt.（1） to be likely to do sth or to happen in a particular way because this is what o
19、ften or usually happens.Women tend to live longer than men.People tend to think think that problem will never affect them.When you are exhausted, you tend to make mistakes.（2） to take a particular direction or often have a particular qualityHis views tend towards the extreme.Prices have tended downw
20、ards over recent years.（3） to care for sth / sb Doctors and nurses tended the injured.tendency n.eg. I have a tendency to talk too much when Im nervors.11. go up If the price of sth, the temperature, etc. goes up, it becomes higher. opposite go downeg. Cigarettes are going up in price. 12. per used
21、to express the cost or amount of sth for each person, number used, distant travelled, etc eg. Rooms cost $50 per person, per night.60 miles per hour13. data n. C or U facts or information, esp when examined and used to find out things or to make decisions eg. This data was collected from 69 countrie
22、s.the analysis / interpretation of the dataraw data （ = that has not been analysed ）These data show that most cancers are14. result in to mke sth happen eg. Aids have/ has resulted in many thousands of deaths.Theses policies resulted in many elderly and disabled people suffering hardship. Opp: resul
23、t fromeg. Jobs loses result from changes in production.15. trend n. （ towards sth ） a general direction in which a situation is changing or developing eg : There is a growing trend towards earlier retirement. A downward / upward trend in salesYou seem to have set （ started ） a new trend.16. catastra
24、phe n. C（1） a sudden disater that causes many people to suffer Early warnings of rising water levels prevented another major catastrophe.（2）. an event that causes one person or a group personal suffering, or that makes difficulties.The attempt to expand the business was a catestrophe for the fiem.Ca
25、tatrophic effects/ losses/ results/ illness17. flood n. U&C A large amount of water covering an area that is usually dryThe heavy rain had caused floods in many parts of the country.The river is in flood.18. oppose v. to disagree strong with ones plan, policy,etc and try to change it or prevent it f
26、rom succeeding He found himself opposed by his own deputy. I would oppose changing the law.opposed adj. She remained bitterly opposed to the idea of moving abroad.opposing adj. （of teams, armies, forces etc） playing, fighting, working, etc against each other a palyer from the opposing side19. mild a
27、dj.（1） not violent, severe or extreme: She cant accept even mild criticism of her work. He has suffered a mild heart attack - nothing too serious.（2） describes food or a food flavour that is not very strong: He doesnt like a hot curry - he prefers a mild one.（3） describes weather that is not very co
28、ld or not as cold as usual: Weve had a mild winter this year.mildly adv.We were mildly surprised to see him again so soon.mildness n.20. consequence n. C an often bad or inconvenient result of a particular action or situation:Scientists think it unlikely that any species will actually become extinct
29、 as a consequence of the oil spill. Well, if you insist on eating so much, youll have to suffer/take （= accept and deal with） the consequences!21. state vt. to say or write something, especially clearly and carefully: Our warranty clearly states the limits of our liability. Union members stated （that） they were unhappy with the proposal. Please state why you wish to apply for this grant.statement n.
