第5部分：補(bǔ)全短文 (第46~50題，每題2分，共10分)
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The Dangers of Secondhand Smoke
Most people know that cigarette smoking is harmful to their health．Scientific research
shows that it causes many kinds of diseases．In fact，many people who smoke get lung cancel
However, Edward Gilson has lung cancer, and he has never smoked cigarettes．He lives with his
wife，Evelyn，who has smoked about a pack of cigarettes a day throughout their marriage．
(46)
No one knows for sure why Mr.Gilson has lung cancer．Nevertheless，doctors believe that
secondhand smoke may cause lung cancer in people who do not smoke because nonsmokers
often breathe in the smoke. from other people’s cigarettes． (47)The US
Environmental Protection Agency reports that about 53，000 people die in the United States each
year as a result of exposure to secondhand smoke．
The smoke that comes from a lit cigarette contains many different poisonous chemicals．In
the past．scientists did not也ink that these chemicals could harm a nonsmoker’s health．
(48)They discovered that even nonsmokers had unhealthy amounts of these toxic
(有毒的)chemicals in their bodies．As a matter of fact，almost all of US breathe tobacco smoke at
times，whether we realize it or not．For example，we cannot avoid secondhand smoke in
restaurants，hotels and other public places．Even though many public places have nonsmoking
areas，smoke flows in from the areas where smoking is permitted．
It iS even harder for children to avoid secondhand smoke． (49)Research shows
that children who are exposed to secondhand smoke are sick more often than children who live
in homes where no one smokes and that the children of smokers are more than twice as likely to
develop lung cancer when they are adults as are 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 dangers of secondhand smoke． (50)
A Recently，though，scientists changed their opinion after they studied a large group of
nonsmokers．
B The Gilsons have been married for 35 years．
C 111is smoke is called secondhand smoke．
D However, secondhand smoke is dangerous to all people，old or young．
E As a result，they have passed laws which prohibit people from smoking in many public
places． ．
F In the United States，nine million children under the age of five live in homes with at least
one smoker．
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5組文字，將其分別放回文章原有位置，以恢復(fù)文章原貌。請(qǐng)將答案涂在答題卡相應(yīng)的位
置上。
The Dangers of Secondhand Smoke
Most people know that cigarette smoking is harmful to their health．Scientific research
shows that it causes many kinds of diseases．In fact，many people who smoke get lung cancel
However, Edward Gilson has lung cancer, and he has never smoked cigarettes．He lives with his
wife，Evelyn，who has smoked about a pack of cigarettes a day throughout their marriage．
(46)
No one knows for sure why Mr.Gilson has lung cancer．Nevertheless，doctors believe that
secondhand smoke may cause lung cancer in people who do not smoke because nonsmokers
often breathe in the smoke. from other people’s cigarettes． (47)The US
Environmental Protection Agency reports that about 53，000 people die in the United States each
year as a result of exposure to secondhand smoke．
The smoke that comes from a lit cigarette contains many different poisonous chemicals．In
the past．scientists did not也ink that these chemicals could harm a nonsmoker’s health．
(48)They discovered that even nonsmokers had unhealthy amounts of these toxic
(有毒的)chemicals in their bodies．As a matter of fact，almost all of US breathe tobacco smoke at
times，whether we realize it or not．For example，we cannot avoid secondhand smoke in
restaurants，hotels and other public places．Even though many public places have nonsmoking
areas，smoke flows in from the areas where smoking is permitted．
It iS even harder for children to avoid secondhand smoke． (49)Research shows
that children who are exposed to secondhand smoke are sick more often than children who live
in homes where no one smokes and that the children of smokers are more than twice as likely to
develop lung cancer when they are adults as are 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 dangers of secondhand smoke． (50)
A Recently，though，scientists changed their opinion after they studied a large group of
nonsmokers．
B The Gilsons have been married for 35 years．
C 111is smoke is called secondhand smoke．
D However, secondhand smoke is dangerous to all people，old or young．
E As a result，they have passed laws which prohibit people from smoking in many public
places． ．
F In the United States，nine million children under the age of five live in homes with at least
one smoker．