纯英版完形填空文章-背诵版.doc

（重重点）第九篇?? 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. Losing __them__ could become troublesome. A case released online in a letter by Annals of Oncology indicates how big a problem_ of losing fingerprints is. Eng-Haut Tan, a Singapore-based medical doctor describes a 62-year old man who has used capacitating to treat his nasopharyngeal cancer(NPC). After three years on the __drug__ ，the patient decided to visit U. S. relatives last December. But he was stopped by U. S. customs officials for_ 4 hours after entering the country when those officials couldnt get fingerprints from the man. There were no distinctive swirly marks appearing from his index finger. U. S. customs has been fingerprinting incoming foreign visitors for years, Tan says. Their index fingers are printed_ and screened against digital files of the fingerprints of bad guys— terrorists and potential criminals that our federal guardians have been tasked with keeping out of （固定搭配）the country. Unfortunately, for the Singaporean traveler，one potential side effect of his drug treatment is a smoothing of the tissue on the finger pads Hence，no fingerprints. “It is uncertain when fingerprint loss will being_ to take place in patients who are taking capacitating，” Tan points out. So he cautions any physicians who __prescribe__ the drug to provide their patients with a doctor’s note 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，also now got the explanatory doctor’s note — and won’t leave home __without__ it. By the way, maybe the Food and Drug Administration, which approved use of the drug 11 years ago, should consider updating_ its list of side effects ass