选修六unit4globalwarming教学设计内容摘要：
ature. ( )4. The rise in carbon dioxide is causing a steady increase in global warming. ( )5. Gee Hambley believes that global warming will do good rather than harm to the earth. ( ) 6. It is clear what the effects of global warming will be. Answers: （设计意图：训练学生积极参与、协作、竞争的能力） 3 Reading Comprehension III Get the students read the passage again and ask some students answer the following questions. purpose of the first paragraph is to ___. A. introduce the writer B. explain a change C. introduce the topic D. raise a question 2. The graphs are used to _____. A. illustrate points by providing evidence B. tell the change of temperature C. tell the content of carbon dioxide in the air D. interest the readers 3. Greenhouse gases refer to_______. A. carbon dioxide B. the burning of fossil fuels C. byproducts of the burning of fossil fuels D. coal, natural gas and oil 4. Greenhouse effect _____. A. is a natural phenomenon B. happens when there’s too much carbon dioxide。阅读剩余 0%
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