Question

8．CHICAGO （Reuters）-Smoking not only can wrinkle （起皺紋） 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（過(guò)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 （緊縮），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．a(chǎn)dvise 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 本文講述的是美國(guó)芝加哥的一項(xiàng)健康調(diào)查發(fā)現(xiàn)抽煙的人的皮膚容易起皺紋，目的在于呼吁人們不要抽煙．

解答 72．A 主旨大意題．根據(jù)文章第一段Smoking not only can wrinkle（起皺紋） the face and turn it yellow--it can do the same to the whole body，researchers reported on Monday．可知抽煙可以讓給人全身的皮膚起皺紋并且變黃．故A選項(xiàng)有彈性不包括在內(nèi)，故選A．
73．D 推斷題．根據(jù)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，可知皮膚狀況與煙齡和吸煙多少有關(guān)．下文不同年齡的人也印證了與個(gè)人膚質(zhì)有關(guān)，D選項(xiàng)未提及，故選D．
74．A 細(xì)節(jié)題．根據(jù)文章倒數(shù)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（緊縮），reducing blood supply to the skin．吸煙引起血管緊縮，導(dǎo)致向皮膚供血減少，可知A項(xiàng)解釋正確．故選A．
75．C 推理題．在本文指作者主要講述了抽煙對(duì)人們健康，尤其是皮膚的影響．目的在于呼吁人們不要抽煙．故C正確．

點(diǎn)評(píng) 科教類(lèi)閱讀難度比一般閱讀較大，它存在的生詞比較多，因此考生應(yīng)當(dāng)綜合略讀、跳讀和查讀，猜詞等閱讀技巧來(lái)做題，平時(shí)也應(yīng)加強(qiáng)練習(xí)．