2024年3月10日发(作者：)

2021年英语四级阅读理解试题20篇含答案(4)

Today ,as in every other day of the year ,more than 3000

U.S. adlescents will smoke their first cigarette on their way

to becoming regular smokers as adults. During their lifetime,it

can be expected that of these 3000 about 23 will be murdered,30

will die in traffic accidents, and nearly 750 will be killed

by a smoking-related disease. The number of deaths attributed

to cigarette smoking outweithts all other factors, whether

voluntary or involuntary, as a cause of death.

Since the late 1970s, when daily smoking among high school

seniors reached 30 precent , smoking rates among youth have

declined . While the decline is impressive ,several important

issues must be raised.

First, in the past several years,smoking rates among youth

have declined very little. Second,in the late 1970s ,smoking

among male high school seniors exceeded that among female by

nearly 10 percent . The statistic is ,several

recent studies have indicate high school dropouts have

excessively high smoking rates, as much as 75 percent .

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Finally, thouth significant declines in adolescent smoking

have occurred in the past decade,no definite reasons for the

decline exist. Within this context,the Naional Cancer Instiute

(NCI) began its current effort to determine the most effecive

measures to reduce smoking levesl among youth.

ing to the author, the deaths among youth are

mainly caused by _____.

c accidents

g-related desease

of these

day there are over_____high school strdents who

will become regular smoker.

a.75

b.23

c.30

d.3000

"dropout" the author means______.

ts who failed the examination

ts who left school

ts who lost their way

ts who were driven out of school

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