A study led by Professor Mark Weiser of Tel Aviv University and the Sheba Medical Center at Tel Hashomer Hospital has determined that young men who smoke are likely to have lower IQs than their non-smoking peers (同龄人). Tracking 18-to 21-year-old men enlisted in the Israeli army in the largest ever study of its kind, he has been able to demonstrate an important connection between the number of cigarettes young males smoke and their IQ.
The average IQ for a non-smoker was about 101, while the smokers’ average was more than seven IQ points lower, at about 94, the study determined. The IQs of young men who smoked more than a pack a day were lower still, at about 90. An IQ score in a healthy population of such young men, with no mental disorders(心理疾病), falls within the range of 84 to 116.
An addiction that doesn’t discriminate(歧视)
“In the health profession, we’ve generally thought that smokers are most likely the kind of people who have grown up in difficult neighborhoods, or who’ve been given less education at good schools,” says Weiser, whose study was reported in a recent version of the journal, Addiction, “But because our study included subjects with various socio-economic backgrounds, we’ve been able to rule out socio-economics as a major factor. The government might want to rethink how it arranges its educational resources on smoking.
Making the results more significant, the study also measured effects in twin brothers. In the case where one twin smoked, the non-smoking twin registered a higher IQ on average.
Although a lower IQ may suggest a greater risk for smoking addiction, the representing data on IQ and smoking found that most of the smokers investigated in the study had IQs within the average range, nevertheless.
In the study, researchers took data from more than 20,000 men before, during and after their time in the military. All men in the study were considered in good health, since pre-screening(筛选的)measures for suitability in the army had already been taken. The researchers found that around 28 percent of their samples smoked one or more cigarettes a day, 3 percent considered themselves ex-smokers, and 68 percent said they never smoked.
“People on the lower end of the average IQ tend to display poorer overall decision-making skills when it comes to their health,” says Weiser. He adds that his finding can help address serious concern among heath counsellors at grade and high schools.
【小题1】The study led by Professor Mark Weiser shows that .
| A．the IQ of smoking males is lower than that of non-smokers |
| B．the IQ of smoking males is higher than that of non-smokers |
| C．the IQ of smoking males is the same as that of non-smokers |
| D．the IQ of smoking males is higher than that of female smokers |
| A．101 | B．94 | C．80 | D．120 |
| A．People in the military are more likely to become smokers than other people. |
| B．Most heavy smokers are found to have mental problems. |
| C．Socio-economic backgrounds have nothing to do with smoking behaviour. |
| D．People with lower IQs tend to be less good at controlling their addiction to smoking. |
| A．Smokers do not believe their IQ is affected by being addicted to smoking. |
| B．All people, no matter what their background, can become addicted to smoking. |
| C．Smoking is an addiction, and we must not discriminate against smokers. |
| D．The addiction to smoking is difficult to get rid of. |
【小题1】A
【小题2】B
【小题3】D
【小题4】B
解析试题分析：
【小题1】A 细节题。根据第一段2,3行that young men who smoke are likely to have lower IQs than their non-smoking peers (同龄人).说明A正确。
【小题2】B 细节题。根据第二段1,2行the smokers’ average was more than seven IQ points lower, at about 94说明抽烟的年轻人的平均智商可能是94，故B正确。
【小题3】D 推理题。根据第五段第一行a lower IQ may suggest a greater risk for smoking addiction,说明智商低的抽烟的人在吸烟成瘾方面危险更大，也就是说他们可能无法控制自己在这方面的瘾，故D正确。
【小题4】B 细节题。根据第三段4,5行But because our study included subjects with various socio-economic backgrounds, we’ve been able to rule out socio-economics as a major factor.说明该研究的对象中有来自各行各业的人，也就是说各个社会阶层的人都吸烟，即B项，所有人，无论他的背景怎么样，都有可能吸烟上瘾，故B正确。
考点：考查健康保健类短文阅读
点评：文章介绍了有吸烟能让人的智商下降。主要考查考生的推理能力和细节的把握能力。
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