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Doctors believe that second-hand smoke may cause lung cancer in people who do not smoke. Nonsmokers often breathe in the smoke f
Doctors believe that second-hand smoke may cause lung cancer in people who do not smoke. Nonsmokers often breathe in the smoke f
admin
2013-01-11
39
问题
Doctors believe that second-hand smoke may cause lung cancer in people who do not smoke. Nonsmokers often breathe in the smoke from other people’s cigarettes. This is second-hand smoke. The U. S. Environmental Protection Agency (美国环保局) reports that about fifty-three thousand people die in the United States each year as a result of exposure (暴露) to second-hand smoke.
It is harder for children to avoid second-hand smoke. In the United States, nine million children under the age of five live in homes with at least one smoker. Research shows that these children are sick more often than children who live in homes where no one smokes. The damaging effects of second-hand smoke on children also continue as they grow up. The children of smokers are more than twice as likely to develop lung cancer when they are adults as children of nonsmokers. The risk is even higher for children who live in homes where both parents smoke.
People are becoming very aware of the danger of second-hand smoke. As a result, they have passed laws that prohibit people from smoking in many public places. Currently, 45 states in the United States have laws that restrict, or limit, smoking. The most well-known law doesn’t allow people to smoke on short native airline flights, i. e. flights within the country.
From the passage we can conclude that ______.
选项
A、the main cause of lung cancer is second-hand smoke
B、most people know nothing about the danger of second-hand smoke
C、public places are dangerous for people to stay
D、children suffer most from second-hand smoke
答案
D
解析
概括题。该题考查对文章内容的概括能力。全文每一段都围绕二手烟对孩子的危害来论述的。由此可知,该题选D :二手烟最大的受害者就是孩子们。
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本试题收录于:
大学英语三级B级题库大学英语三级分类
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大学英语三级B级
大学英语三级
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