木垒中学2018-2019学年第一学期高二年级英语期中考试试卷

（考试时间120分钟 试卷分值150分）

第一部分 听力(共两节, 满分30分)(略)

第二部分： 阅读理解 （共两节，满分40分）

第一节（共15题，每小题2分，满分30分）

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 indicated 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.

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

A.75 B.23 C.30 D.3.000

22. By" dropoutS "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

23. 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

24. What is implied by the author is that

A. smoking rates among youth have declined very little