Question

8．CHICAGO （Reuters）-Smoking not only can wrinkle （起皱纹） the face and tarn 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 the face，it becomes 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 die 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 that supports both die skin and the internal organs，．
72．When your skin is exposed to sunlight long，it-becomes all of the following butA．
A．flexible             
B．coarse                                       
C．rough    
D．discolored
73．How wrinkled a person's skin is doesn't relate toD．
A．the number of cigarettes a person smokes．    
B．the kind and characteristics of skin
C．how long a person smokes              
D．how long skin is under sunlight
74．From the passage smoking results in skin aging mainly becauseA．
A．it will lower blood supply to skin                            
B．it can make you feel tired
C．it can make skin come off                                
D．it can make blood run faster
75．The main purpose of the passage is toC．
A．inform people about the result of the study                 
B．advise people how to protect skin
C．warn people not to smoke again                          
D．introduce a new way of avoid skin aging．

Answer 1

分析 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．

解答 72．A 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并且变黄．故A选项有弹性不包括在内，故选A．
73．D 推断题．根据文章第二段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，可知皮肤状况与烟龄和吸烟多少有关．下文不同年龄的人也印证了与个人肤质有关，D选项未提及，故选D．
74．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．吸烟引起血管紧缩，导致向皮肤供血减少，可知A项解释正确．故选A．
75．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．

点评 科教类阅读难度比一般阅读较大，它存在的生词比较多，因此考生应当综合略读、跳读和查读，猜词等阅读技巧来做题，平时也应加强练习．