第6部分：完形填空(第51～65題，每題1分，共15分)

　　下面的短文有15處空白，請根據(jù)短文內(nèi)容為每處空白確定1個最佳選項。

The Case of the Disappearing Fingerprints

　　One useful anti-cancer drug can effectively erase the whorls and other characteristic marks that give people their distinctive fingerprints(指紋)．Losing them could become troublesome．A case _________(51)online in a letter by Annals of Oncology(腫瘤學(xué))indicates how big a________(52)of losing fingerprints is．

　　Eng-Huat Tan，a Singapore-based medical doctor describes a 62-year-old man who has used capecitabine to________(53)his nasopharyngeal cancer(鼻咽癌)．After three years on the_______(54)，the patient decided to visit U．S．relatives last December．But he was stopped by

　　U．S．customs officials________(55)4 hours after entering the country when those officials couldn't get fingerprints from the man．There were no_______(56)swirly marks appearing from his index finger．

　　"U．S．customs has been fingerprinting incoming foreign visitors for years．"Tan says．"unfortunately，for the Singaporean traveler，one potential_________(57)effect of his drug treatment is a smoothing of the tissue on the finger pads．_________(58)，no fingerprints．"

　　"It is uncertain when fingerprint___________(59)will begin to take place in patients who are taking capecitabine，"Tan points out．So he__________(60)any physicians who prescribe the drug to provide their patients with a doctor'S___________(61)pointing out that their medicine may cause fingerprints to disappear．

　　Eventually，the Singapore traveler made it into the United States．I guess the name on his passport didn't raise any red flags． But he'S also now got the explanatory doctor's note-and won't leave home_______(62)it．

　　By the way，maybe the Food and Drug Administration(美國食品藥物管理局)，____________(63) approved use of the drug 11 years ago，should consider updating its list of side effects _______(64)with this medicine．The current list does note that patients may experience vomiting(嘔吐)，stomach pain and some other side effects．But no where__________(65)it mention the potential for loss of fingerprints．

　　51．A．released B．suggested C．a(chǎn)ccepted D．detected

　　52．A．problem B．gap C．sickness D．secret

　　53．A．cut B．treat C．find D．smooth

　　54．A．diet B．exercise C．recovery D．drug

　　55．A．in B．for C．a(chǎn)t D．from

　　56．A．different B．strange C．interesting D．distinctive

　　57．A．good B．side C．normal D．main

　　58．A．However B．Meanwhile C．Hence D．Yet

　　59．A．chance B．mark C．loss D．danger

　　60．A．reports B．discourage C．cautions D．praise

　　61．A．note B．name C．book D．number

　　62．A．on B．out C．without D．off

　　63．A．who B．when C．which D．where

　　64．A．collected B．copied C．a(chǎn)ssociated D．tested

　　65．A．must B．does C．can D．should

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51．A 52．A 53．B 54．D 55．B 56．D 57．B 58．C 59．C 60．C 61．A 62．C 63．C 64．C 65．B

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