单选题 Today, cigarette smoking is a widespread habit. About 43 percent of the adult men and 31 percent of the adult women in the US smoke cigarettes regularly. It is encouraging to note, however, that millions of people have given up the smoking habit. 75 percent of the male population and 46 percent of the female population have smoked cigarettes at some time during their lives, but 26 percent of these men and 11 percent of the women have stopped smoking. The number of persons who have given up smoking is increasing.
It is a fact that men as a group smoke more than women. Among both men and women the age group with the highest proportion of smokers is the age group 24-44.
Income, education, and occupation all play a part in determining a person"s smoking habits. City people smoke more than people living on farms. Well-educated men with high incomes are less likely to smoke cigarettes than men with fewer years of schooling and lower incomes. On the other hand, if a well-educated man with a higher income smokes at all, he is likely to smoke more packs of cigarettes per day.
The situation is somewhat different for women. There are slightly more smokers among women with higher family incomes and higher education than among the lower income and lower educational groups. These more highly educated women tend to smoke more heavily.
Among teenagers the picture is similar. There are fewer teenaged smokers from upper-income, well-educated families, and fewer from families living in farm areas. High school students who are preparing for college are less likely to smoke than those who do not plan to continue their education after high school. Children are most likely to start smoking if one or both of their parents smoke.

单选题 What do we know from the first paragraph?

A、 More and more people take up the habit of smoking
B、 There are more smoking women than smoking men in USA
C、 It is good news that more people have given up smoking
D、 The US has more smoking people than any other city

【正确答案】 C

【答案解析】[解析] 段落主旨题。首段第三句的转折词however提示，此句为段落的主题句。选项C中的good news与原文中的encouraging to note对应；more people与原文中的millions of people对应；have given up smoking与原文重现。故答案为C。

单选题 What determines a person"s smoking habits?

A、 Age, income and education
B、 Age, sex and income
C、 Occupation, income and sex
D、 Profession, income and education

【正确答案】 D

【答案解析】[解析] 题干关键词determines a person"s smoking habits与原文第三段首句重现，可据此定位。原文中的income，education与选项A和D重现，但occupation只与选项D中的profession对应。故答案为D。

单选题 Which of the following is true according to the passage?

A、 City people are less likely to smoke
B、 People in rural areas are more likely to smoke
C、 Men with higher incomes tend to smoke
D、 Well-educated men with high incomes are generally less likely to smoke

【正确答案】 D

【答案解析】[解析] 细节判断题。原文第三段第三句中的Well-educated men with high incomes, less likely to smoke均与选项D重现。故答案为D。

单选题 What is the smoking situation for women?

A、 The situation is quite the same for women as for men
B、 Better-educated women are likely to smoke heavily
C、 There are more women smokers with low incomes
D、 Women with higher incomes and higher education do not tend to smoke

【正确答案】 B

【答案解析】[解析] 细节事实题。根据题干关键词smoking situation，women定位到原文第四段首句。接着在第二句提到了more smokers与higher education一致，女性的情况跟男性相反，教育程度越高，吸烟数量越多。故答案为B。

单选题 What can we say about teenage smokers?

A、 The picture about the teenage smokers is similar to that of women smokers
B、 The situation among teenagers is quite the same with men
C、 High school students are more likely to smoke than college students
D、 Farmers" children tend to smoke more

【正确答案】 B

【答案解析】[解析] 细节事实题。根据题干关键词teenage smokers定位到原文尾段。原文尾段第二句提到fewer teenaged smokers与upper-income，well-educated families一致，这种情况与成年男人相似。故答案为B。