关于印发2012年普通高等学校招生全国统一考试（四川卷）外语科试(7)
C. Crosswalks are crowded. D. Drivers dont give way. 56. The report from NHTSA suggests that . A. fewer people were injured in crosswalks B. crosswalk safety has been greatly improved C. much has bee
C. Crosswalks are crowded.
D. Drivers dont give way.
56. The report from NHTSA suggests that .
A. fewer people were injured in crosswalks
B. crosswalk safety has been greatly improved
C. much has been done to reduce traffic accidents
D. pedestrian deaths in crosswalks remain a serious problem
E
All too often , a choice that seems sustainable(可持续的)turns out on closer examination to be problematic. Probably the best example is the rush to produce ethanol(乙醇)for fuel from corn. Corn is a renewable resource you can harvest it and grow more, almost limitlessly. So replacing gas with corn ethanol seems like a great idea.
One might get a bit more energy out of the ethanol than that used to make it, which could still make ethanol more sustainable than gas generally, but thats not the end of the problem. Using corn to make ethanol means less corn is left to feed animals and people, which drives up the cost of food. That result leads to turning the fallow land including, in some cases, rain forest in places such as Brazil into farmland, which in turn gives off lots of carbon dioxide (CO2) into the air. Finally, over many years, the energy benefit from burning ethanol would make up for the forest loss. But by then, climate change would have progressed so far that it might not help.
You cannot really declare any practice sustainable until you have done a complete life-cycle analysis of its environmental(环境的)costs. Even then, technology and public policy keep developing, and that development can lead to unforeseen and undesired results. The admirable goal of living sustainable requires plenty of thought on an ongoing basis.
57. What might directly cause the loss of the forest according to the text?
A. The growing demand for energy to make ethanol.
B. The increasing carbon dioxide in the air.
C. The greater need for farmland.
D. The big change in weather.
58. The underline word it in the second paragraph refers to .
A. the energy benefit B. the forest loss
C. climate change D. burning ethanol
59. The author thinks that replacing gas with corn ethanol is .
A. impractical B. acceptable C. admirable D. useless
60. What does the author mainly discuss in the text?
A. Technology. B. Sustainability.
C. Ethanol energy. D. Environmental protection.
第二节根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项多余选项。(共5小题;每小题2分，满分10分)
Now, tell me about the man who stole your neighbours car. What did he look like?
Well, sir. He was tall
61
Oh yes, and he was younger than you only about thirty, Id say.
Well! And what colour was his hair? (责任编辑：www.360gaokao.com)
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