(2)
burning of fossil fuels like coal,natural gas and oil to produce energy
(3)
byproducts are called “greenhouse” gases,the most important one
(4)
carbon dioxide.These gases trap heat from the sun and therefore warm the earth,without which the earth
(5)
(be)about thirtythree degrees Celsius cooler than it is.But increased amount of carbon dioxide means that
(6)
heat energy is trapped in the atmosphere,
(7)
(cause)the global temperature to go
(8)
. On
(9)
other hand,scientists like George Hambley believe that any warming will be mild with
(10)
bad environmental consequences and more carbon dioxide is actually a positive thing. 1.解析:There is no doubt that 是固定句型。 答案:that 2.解析:by doing...通过……的方式。 答案:by 3.解析:whose 引导定语从句。 答案:whose 4.解析:the most important one being carbon dioxide 是独立主格结构。 答案:being 5.解析:介词短语without which表示虚拟条件,主句中用would be表示虚拟语气。 答案:would be 6.more 7.解析:causing the global temperature to go up 是分词短语作结果状语。 答案:causing 8.up 9.解析:on the other hand 另一方面。 答案:the 10.解析: few表否定,另外有人认为地球变暖几乎没有不良后果。 答案:few Ⅶ.考点活用 用本单元所学的词组、句型翻译下面短文 与过去一个世纪相比,地球表面的温度已经大约升高了一摄氏度。其实,我们也可以感受得到,我们越来越难以忍受夏天的炎热,也不习惯冬天的暖和。气温的升高已经对人类的健康、动植物的生存、生态系统产生了很大的影响。毫无疑问,人类的活动应该对环境的恶化负责任。条件允许的话,世界各国都应该采取措施努力改善环境。若没有全世界人们的共同奋斗,我们明天将会是怎样? ______________________________________________ ______________________________________________ ______________________________________________ 答案:
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