CHICAGO (Reuters) - Smoking not only can wrinkle(起皱纹) the face and turn it yellow -- it can do the same to the whole body, researchers reported on Monday.
The study, published in the Archives of Dermatology, shows that smoking affects the skin all over the body -- even skin protected from the sun.
We examined non-facial skin that was protected from the sun, and found that the total number of packs of cigarettes smoked per day and the total years a person has smoked were linked with the amount of skin damage a person experienced, Dr. Yolanda Helfrich of the University of Michigan, who led the study, said in a statement.
In participants older than 65 years, smokers had significantly more fine wrinkling than nonsmokers. Similar findings were seen in participants aged 45 to 65 years, Helfrich's team added in their report.
The researchers tested 82 people, smokers and nonsmokers, taking pictures of the inner right arms. They ranged in age from 22 to 91 and half were smokers. Independent judges decided how wrinkled each person's skin was.
When skin is exposed to sunlight, notably（尤其）the face, it bees coarse, wrinkled and discolored with a pale yellow tint, Helfrich's team wrote.
Several previous studies have found that cigarette smoking contributes to premature（过早的）skin aging as measured by facial wrinkles, the study said, but little has been done to measure the aging of skin not exposed to light.
The report did not discuss the mechanism involved but previous research has found that cigarette smoke, among other things, causes blood vessels（血管）beneath the skin to constrict（紧缩）, reducing blood supply to the skin.
Smoking can also damage the connective tissue (组织)that supports both the skin and the internal organs.
【小题1】The best title for this passage would be .A．The danger of smokingB．Smoking causes skin agingC．Quit smoking for healthD．A survey of smokers【小题2】It can be inferred from the study .A．smoking won’t make skin protected from the sunB．smoking will do damage to skin rather than other organsC．smokers over 65 usually won’t worry about their skinD．the age of smokers is not connected with the result of the test【小题3】 From the passage smoking results in skin aging mainly because .A．it will lower blood supply to skinB．it can make you feel tiredC．it can make skin e offD．it can make blood run faster【小题4】The main purpose of the passage is to .A．inform people about the result of the studyB．advise people how to protect skinC．warn people not to smoke againD．introduce a new way of avoiding skin agingB
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(答案→)B
解析：本文讲述的是美国芝加哥的一项健康调查发现抽烟的人的皮肤容易起皱纹，目的在于呼吁人们不要抽烟。
【小题1】B 主旨大意题。根据文章第一段Smoking not only can wrinkle(起皱纹) the face and turn it yellow -- it can do the same to the whole body, researchers reported on Monday.
可知抽烟可以让给人全身的皮肤起皱纹。故B正确。
【小题2】D 推断题。根据文章第四段The researchers tested 82 people, smokers and nonsmokers, taking pictures of the inner right arms. They ranged in age from 22 to 91 and half were smokers.可知调查对象的年龄跨度很大，也就是说年龄不是问题。故D正确。
【小题3】A 细节题。根据文章倒数第二段The report did not discuss the mechanism involved but previous research has found that cigarette smoke, among other things, causes blood vessels（血管）beneath the skin to constrict（紧缩）, reducing blood supply to the skin.
可知A项解释正确。
【小题4】C 推理题。在本文指作者主要讲述了抽烟对人们健康，尤其是皮肤的影响。目的在于呼吁人们不要抽烟。故C正确。