W: You must have been driving too fast.
M: No, I crashed into the tree because I was trying not to hit a box that had fallen off the track just ahead.
[听力原文]
W: You must have been driving too fast.
M: No,I crashed into the tree because I was trying not to hit a box that had fallen off the truck just ahead.
W: You must have been driving too fast.
M: No, I crashed into the tree because I was trying not to hit a box that had fallen off the truck just ahead.
M: You must have been driving at seventy miles an hour. Didn’ t you see the speed limit
W: I can’ t have been driving that fast.
M: I was doing eighty when I overtook you.
Since the early eighties we have been only too aware of the devastating effects of large-scale environmental pollution. Such pollution is generally the result of poor government planning in many developing nations or the short-sighted, selfish policies of the already industrialized countries which encourage a minority of the world’s population to squander the majority of its natural resources.
While events such as the deforestation of the Amazon jungle or the nuclear disaster in Chernobyl continue to receive high...remembered that not all pollution is on this grand scale. A large proportion of the world’s pollution has its source much close to home.
Avoiding pollution can be a fulltime job. Try not to inhale traffic fumes, keep away from chemical plants and building-sites; wear a mask when cycling. It is enough to make you want to stay at home. But that, according to a growing body of scientific evidence, would also be a bad idea. Research shows that l
A. has increased since the eighties
B. is at its worst in industrialized countries
C. results from poor relation between nations
D. is caused by human self-interest
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