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1、Welcome to my class!unit 4 global warming,the earth is becoming warmer-but does it matter?地球在变暖吗?reading、new words and expressions、temperature温度one degree Fahrenheit华氏导航human activities人类活动phenom现象subscribe to同意、Fossil fuelheitWhat is the main topic?the earth . b . global warming . c . becoming warm

2、er does snt matter。the structure of the article :introduction、a title、body、conclusion、Skim the body part (7 paras),Two different attitudes among scientists towards the consequence of global warming,introducte the problem of global warming。Give a warning and raise a question for the readers to think

3、over。I (1)、ii (2-3)、iii (4-6)、iv (7)和who wrote the article?What is the name of the magazine?careful reading : the first paragraph :sophee armstrog,earth care,part ii (para 2-3),Every one believesJanice foster believes that shecan measure the future global rise in temp E rature。greenhouse gases are t

4、otally bad。f、t、f、fill in the blanks about the causes of green house effect、heno menon、uan tities、rapped、go up、smallthe levels of carbon dioxide have increated greaty over the last 100 to 150 years,who made accurate measurements of the amount of carbon dioxide2.how much has increassed?Charles keeling

5、,the carbon dioxide in the atmosphere went up from around 315 parts to around 370 parts per million,para 5。how high will the temperature go?the amount of warming could be as low as 1 to 1.5 degrees celsius,but it could be as high as 5 degrees。What do dr . Janice foster and the scientist George hambl

6、ey think about the consequence of global warming?Do they agree with one another?para 6、they dont agree with each other。Janice foster thinks it is serious。George hambley thinks global warming will be mild with few bad environmental consequence,does global warming matter?positive effects、negative effects、Cause the sea level to rise sever storms floods droughts famines the spread of diseases disaseshave a disscussion with your class mates,the earth is becoming warmer,does it matter?homework、1。

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