高中英语 Unit 4 Global warming 课件 新人教版选修6
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China and many developing countries located at the edge of the summer wind.Mr.Zhang， professor of the Institute of Geography，Chinese Academy of Sciences，found that the agricultural
第二页，共7页。
• Mr.Ren，a Chinese scientist，began to study
global climate change more than a decade ago.He indicated(表明(biǎomíng)) that the rainfall
brought by the summer wind coming off the
ocean would improve the ecological environment in some arid(干旱的)or semiarid areas.In other words，a warmer climate could result in
increased agricultural harvest for most parts of
•Unit 4 Global warming
第一页，共7页。
• 一些中国科学家认为全球(quánqiú)变暖对中国 和一些发展中国家很有利。
• The other side of the story • Some Chinese scholars believe global warming
has advantages.They think the warming climate can bring benefits to China and many developing countries.
based on historical records of agricultural production between the warmer periods (1750－1790) and the colder periods(1841－1890)．
第七页，共7页。
第五页，共7页。
• It is generally believed that the greenhouse effect resulting from industrial activities destroys the natural environment.Under such circumstances， Ren admitted it would be difficult for the public to accept his viewpoint.He only hoped that both natural and human factors should be taken into consideration when people think about global warming.
第六页，共7页。
• Answer the followinon of some Chinese scholars? • 【答案(dáàn)】Global warming has advantages. • 2．How did Mr.Ren draw his conclusion? • 【答案(dáàn)】This conclusion came after detailed comparison
第三页，共7页。
This conclusion came after detailed comparison based on historical records of agricultural production between the warmer periods(1750 ～ 1790)and the colder periods(1841～1890)．
According to Ren ， during the 10,000 years before the industrial revolution，cold and warm periods had appeared alternately(交替地)．
第四页，共7页。
• Therefore，human activities should not be regarded as the main cause of climate change.“Influences from both human and natural factors should be equally stressed.”Ren said， adding that nobody could be sure at this point whether it was natural influence or the greenhouse effect that was causing the change.
第二页，共7页。
• Mr.Ren，a Chinese scientist，began to study
global climate change more than a decade ago.He indicated(表明(biǎomíng)) that the rainfall
brought by the summer wind coming off the
ocean would improve the ecological environment in some arid(干旱的)or semiarid areas.In other words，a warmer climate could result in
increased agricultural harvest for most parts of
•Unit 4 Global warming
第一页，共7页。
• 一些中国科学家认为全球(quánqiú)变暖对中国 和一些发展中国家很有利。
• The other side of the story • Some Chinese scholars believe global warming
has advantages.They think the warming climate can bring benefits to China and many developing countries.
based on historical records of agricultural production between the warmer periods (1750－1790) and the colder periods(1841－1890)．
第七页，共7页。
第五页，共7页。
• It is generally believed that the greenhouse effect resulting from industrial activities destroys the natural environment.Under such circumstances， Ren admitted it would be difficult for the public to accept his viewpoint.He only hoped that both natural and human factors should be taken into consideration when people think about global warming.
第六页，共7页。
• Answer the followinon of some Chinese scholars? • 【答案(dáàn)】Global warming has advantages. • 2．How did Mr.Ren draw his conclusion? • 【答案(dáàn)】This conclusion came after detailed comparison
第三页，共7页。
This conclusion came after detailed comparison based on historical records of agricultural production between the warmer periods(1750 ～ 1790)and the colder periods(1841～1890)．
According to Ren ， during the 10,000 years before the industrial revolution，cold and warm periods had appeared alternately(交替地)．
第四页，共7页。
• Therefore，human activities should not be regarded as the main cause of climate change.“Influences from both human and natural factors should be equally stressed.”Ren said， adding that nobody could be sure at this point whether it was natural influence or the greenhouse effect that was causing the change.