1、Module 6 Unit 4 Global Warming (warming up & comprehending) 编号1班级：_小组：_ 姓名：_ 等级：_ 【Learning Goals】1.了解、认识全球变暖产生的原因及影响，从而重视对地球的保护。2.通过自主学习、合作探究，学会从文中发现、归纳短语和句型。3.能够掌握warming up 中的重点单词和词汇。【使用说明与学法指导】1.自学：15分钟自学课文P26-27，独立完成导学案题目并上交。 1）先不看课文，根据提示完成Task 2。 2）快速阅览课文，把握文章的主旨大意，完成Task 3&4 3) 再精读课文1遍，完成其余任务
2、。2. A层完成以下内容后，背诵课文复述短文 B层结合课本句子分析来理解课文。 C层要求理解文章大意。Task 1 Warming upFill in the following chart:Things that use energySources of energyRenewable/Non-renewablecoalnon-renewablenon-renewablewindrenewablerenewableTask 2 Pre-readingwhat is a greenhouse?A green house is made of _ and is used for _ plants
3、, especially during _ weather. The air inside is warm because the glass _ the heat from the sun and keeps it from _. This makes the greenhouse _ and so the plants can grow throughout the cold period.Task3 Scan the passage and finish the following true or false questions. 1. The temperature in the la
4、st century did not seem 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 cl
5、ear what the effects of global warming will be.Task4 detail readingRead the passage and find out the best answers to the questions.1. The text mainly discusses _ .A. when the “greenhouse effect” startedB. what causes the “greenhouse effect”C. Dr. Janice Fosters theory on the “ greenhouse effect”D. t
6、he fact that the earth is becoming warmer and different theories about it2. From Graph 1 we know _ .A. the earths temperature increases faster in the 18th than that in the 19th century.B. the earths temperature began to increase much faster after 1980s.C. the earths temperature increased over 0.8 C
7、in the 20th century.D. there was no change at all in the earths temperature in the 19th century.3. Who found out the amount of carbon dioxide in the atmosphere from 1957 to 1977?A. Dr Janice Foster B. Charles Keeling C. George Hambley D. Sophie Armstrong4. The main difference between dr. Janice Fost
8、ers theory and George Hambleys lies in _ .A. how to prevent global warmingB. what causes global warming C. whether global warming would cause serious problems or notD. whether the levels of carbon dioxide have increase or not over the years5. Which of the following is the writer most likely to agree
9、 with?A. If the climate is going to keep on warming there will certainly be a catastrophe.B. We should do nothing about global warming.C. Much remains to be found out about the effects of global warming.D. Global warming is in fact a good thing for mankind.Task5 Read the passage again and fill in th
10、e blanks in the chart.The different ideas between Dr. Janice Foster & George HambleyDr. Janice FosterGeorge HambleyCarbon dioxide has caused the global temperature to 1._. An increase of five degrees would be a 2._ and could be 3._.More carbon dioxide is a 4._ thing, which makes plants 5._, crops 6.
11、_ and will encourage 7._.Useful words and expressionscompare to 比作 come about 发生，造成 phenomenon 现象subscribe to 同意，支持，对捐款 state陈述，声明，状况range 范围，排列 build up 逐步建立，增加，增进glance 扫视，匆匆一瞥 on the whole 大体上，基本上第一步：热身活动，旨在让学生对本单元话题有个初步了解。第二步：读前了解全球变暖的背景知识。第三步：快速阅读通过通读全文迅速找到信息点，对全文有个大致理解。第四步：抓住细节的能力 方法导引：采用扫描式阅读
12、(scanning), 进行有选择有目的的阅读。目的是寻找某些资料和信息，对于无关的部分可以忽略。 合作探究 Task 1 自主学习疑难点及课文中的重难点句子。长难句分析：Underline the following sentences in the text and answer the questions. 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
13、 natural phenomenon. (L5)第一个that引导_ 从句，第二个that引导_ 从句，第三个that是_ 句型，该句型在本文还有_ 个。整句翻译：_Task 2 课文复述Fill in the blanks with the proper words according to the text or the clues in the blankets.When 1._(compare) with most natural changes, that the temperature of the earth rose about one degree Fahrenheit d
14、uring the 20th century is quite shocking. And its human activity 2._ has caused this 3._(全球的) warming rather 4._a random but natural 5._（现象）. Dr Janice Foster explains that we add huge 6._ of extra carbon dioxide to the atmosphere by burning fossil fuels. From the second 7._（图表）and the discovery of
15、Charles Keeling, all scientists believe that the burning of more and more fossil fuels has resulted 8._the increase in carbon dioxide. Greenhouse gases continue to build up. Some think that the trend would be a 9._ (灾难). On the other hand, George Hambley 10._ (声明) that more carbon dioxide would enco
16、urage a greater range of animals and bring us a better life.Task 3能力提升阅读以下的材料，Level C基本能看懂，Level A，B能完成文章后练习。The need to feed a growing population is putting much pressure on the worlds supply of water. With 97% of the worlds water too salty to be drunk or used in agriculture, the worldwide supply o
17、f water needs careful management, especially in agriculture. Although the idea of a water shortage（短缺）seems strange to someone fortunate enough to live in a high rainfall country, many of the worlds agricultural industries experience constant water shortages.Although dams can be built to store water
18、 for agricultural use in dry areas and dry seasons, the costs of water redistribution（重新分配）are very high. Not only is there the cost of the engineering itself, but there is also an environmental cost to be considered. Where valleys（山谷）are flooded to create dams, houses are lost and wildlife homes de
19、stroyed. Besides, water may flow easily through pipes to fields, but it cannot be transported from one side of the world to the other. Each country must therefore rely on the management of its own water to supply its farming requirements.This is particularly troubling for countries with agricultural
20、 industries in areas dependent on irrigation（灌溉）. In Texas, farmers overuse of irrigation water has resulted in a 25% reduction of the water stores. In the Central Valley area of southwestern USA, a huge water engineering project provided water for farming in dry valleys, but much of the water use h
21、as been poorly managed.Saudi Arabias attempts to grow wheat in desert areas have seen the pumping of huge quantities of irrigation water from underground reserves. Because there is no rainfall in these areas, such reserves can only decrease, and it is believed that fifty years of pumping will see th
22、em run dry.1. From the first two paragraphs we learn that_.A. much of the worlds water is available for useB. people in high rainfall countries feel luckyC. the costs of water redistribution should be consideredD. water can be easily carried through pipes across the world2. Which of the following is
23、 TRUE？A. The water stores in Texas have been reduced by 75%.B. Most industries in the world suffer from water shortages.C. The underground water in Saudi Arabia might run out in 50 years.D. Good management of water use resulted from the project in the Central Valley.3. What is most likely to be disc
24、ussed in the paragraph that follows？A. Steps to improving water use management.B. Ways to reduce the costs of building dams.C. Measures to deal with worldwide water shortages.D. Approaches to handling the pressure on water supply.4. The text is mainly about_.A. water supply and increasing populationB. water use management and agricultureC. water redistribution and wildlife protectionD. water shortages and environmental protection第五步：学会根据句子重点理解句子的能力，结合课后注释和以往学过的知识分析句子，不明白的标记出来，准备讨论。方法导引：根据词组理解句子和文章。第六步：学会浓缩归纳课文，学会理解长难句的能力，学会浓缩课文、背诵记忆的能力，疯狂复述课文。要求：全力以赴、大声背诵，积极主动复述文章。第七步：阅读与环境保护有关的文章，注意理解长难句。
