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第二篇Study Says Dogs Can Smell Cancer Dogs are known for their sense of smell.They can find missing people and things like bombs and illegal drugs.Now a study suggests that the animal known as man’s best friend can even find bladder(膀胱)cancer. Cancer cells are thought to produce chemicals with unusual odors(气味).Researchers think dogs have the ability to smell these odors,even in very small amounts,in urine(尿).The sense of smell in dogs is thousands of times better than in humans. The study follows reports of cases where,for example,a dog showed great interest in a growth on the let of its owner.The mole(痣)was later found to be skin cancer. Carolyn Willis led a team of researchers at Amersham Hospital in England.They trained different kinds of dogs for the experiment.The study involved urine collected from bladder cancer patients,from people with other diseases and from healthy people. Each dog was tested eight times.In each test there were seven samples for the dogs to smell.The dog was supposed to signal the one from a bladder cancer patient by lying down next to it. Two cocker spaniels(短腿长毛垂耳小猎犬)were correct fifty-six percent of the time.But the scientists reported an average success rate of forty-one percent. As a group,the study found that the dogs chose the correct sample twenty-two out of fifyt-four times.That is almost three times more often than would be expected by chance alone. The British Medical Journal published the research.In all,thirty-six bladder cancer patients and one hundred and eight other people took part. During training,all the dogs reportedly even identified a cancer in a person who had tested healthy before the study.Doctors found a growth on the person’s right kidney(肾). Bladder cancer is the ninth most common cancer worldwide.The International Agency for Research on Cancer says this disease kills more than one hundred thousand people each year.Doctors say cigarette smoking is the leading cause of bladder cancer. Participants in the experiment were （）
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第一篇Wayne Beno Wayne Beno was a true outdoorsman.Fishing,boating,hunting,walking through the woods with his three dogs,Wayne loved and did it all.Then life changed dramatically.Wayne was diagnosed with Parkinson’s disease(帕金森氏病). “For the next thirteen years I took 28 pills a day,had horrible side effects,and even with all those pills I still had lots of shaking and tremors(颤抖).I only went out during peak times,when I was looking and feeling my best.But that wasn’t often and I really couldn’t do much of anything.I felt like the life I loved was over,”said Wayne. Then Wayne’s doctor in Green Bay suggested he consider a breakthrough surgical option being offered at Froedtert & the Medical College of Wisconsin called Deep Brain Stimulation(刺激)(DBS).DBS is a surgical option used to treat disabling movement disorders related to Parkinson’s disease,essential tremor and more.It is not a cure,but significant improvement is seen in most movement disorder cases,with relatively low risk to the patient. In addition to his doctor’s recommendation,Wayne had a neighbor and fishing friend who had the DBS procedure at Froedtert & the Medical College of Wisconsin.His friend’s experience convinced Wayne that the 180-mile trip from his home in Crivitz,Wisconsin could be well worth the effort. And was it ever. “It was the best thing I ever did.I’m down to zero pills a day and I don’t shake at all,”reports Wayne.“Before the surgery,I felt bad every single day.Now I feel like my old self.I’m back to business as usual,which for me means fishing, fishing, and more fishing,every day of the year.Things just couldn’t be any better!” After the surgery,Wayne felt （）
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