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英语B6课文缩写unit4


三、课文缩写填空(对应学生用书第 162 页) 请用适当的词填空,或者用所给词的正确形式填空 The Earth’s surface temperature has risen by about one degree Fahrenheit today.There is no doubt 1.________ the earth is becoming warmer.But how has this come about and does it matter? People have fierce debates about whether 2.________ is human activity that has caused this global warming,3.________ (compare) with most of the natural changes. Many scientists 4.________ Dr.Janice Foster believe that people have caused the increase in the earth’s temperature 5.________ burning fossil fuels like coal,natural gas and oil to produce energy.Some byproducts of this process are called “greenhouse” gases,the most important one of 6.________ is carbon dioxide.The increased amount of carbon dioxide means that more heat energy 7.________ (trap) in the atmosphere 8.________ (cause) the global temperature to go up. On 9.________ other hand,some scientists predict that any warming will be mild with few bad 10.________ (environment) consequences.Anyhow,even if we start reducing the amount of carbon dioxide and other greenhouse gases,the climate is going to keep on warming for decades or centuries. 答 案 : 1.that 2.it 3.compared 4.like 5.by 6.which 7.is trapped 8.causing 9.the 10.environmental


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