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  • 更新 2022-09-03
  • 科目 英语
  • 题型 阅读理解
  • 难度 中等
  • 浏览 196

Today, as in every other day of the year, more than 3,000 U.S. adolescents will smoke their first cigarette on their way to becoming regular smokers as adults. During their lifetime, it can be expected that of these 3,000 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 due to cigarette smoking outweighs 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 percent, 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 beat that among female by nearly 10 percent . The statistic is reversing (完全相反的). Third, several recent studies have indicate high school dropouts have excessively high smoking rates, as much as 75 percent .
Finally, though significant declines in adolescent smoking have occurred in the past decade, no definite reasons for the decline exist. Within this context, the National Cancer Institute (NCI) began its current effort to determine the most effective measures to reduce smoking level among youth.
According to the author, the deaths among youth are mainly caused by _____.

A.traffic accidents B.smoking-related disease
C.murder D.all of these

Every day there are over _____ high school students who will become regular smoker.

A.75 B.23 C.30 D.3000

By "dropout" the author means ________

A.students who failed the examination
B.students who left school
C.students who lost their way
D.students who were driven out of school

The reason for declining adolescent smoking is that ________.

A.NCI has taken effective measures
B.smoking is prevented among high school seniors
C.there are many smokers who have died of cancer
D.none of these

What is implied by the author is that ________.

A.smoking rates among youth have declined very little
B.there are now more female than male smokers among high school seniors
C.high smoking rates are due to the increase in wealth
D.smoking at high school are from low socio-economic backgrounds
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