useful. Some breeds that have amazing sense of smell are put to good use as sniffer dogs or detection dogs, and are trained to use their senses to detect substances such as explosives and illegal drugs. You 11 often see (hem at airports or working with police out on the streets.
Other types of working dogs include guide dogs, hearing dogs and mobility dogs all providing a life - saving service to their owners. Some dogs can alert (报警)emergency services when their owner has a seizure. And there are clever canines that have been trained (o provide affection and comfort lo people in hospitals, retirement homes or schools and to people with loneliness.
New uses for dogs are being discovered all the lime. A dog is in fact a highly sophisticated bio - sensor. Evolution has given it this highly sensitive! nose.
It's this incredible ability
that has led to the UK's National Health Service assessing wheth- er dogs can be used to detect early stage prostate (前腺)cancer 一 vital for improving survival rates. The dogs - usually from the gundog breed,such as labradora and springer spaniels —are taught o detect a sample of urine from a patient
with prostate cancer.
It's
also managed to train dogs lo detect changes in blood glucose levels in people suffering from type 1 diabetes. One patient, who has one of these medical alert assistance dogs, told the BBC that " in the three and a half years we 've
【河南省周口市2016-2017学年高二下学期期末考试英语试卷】相关文章:
★ 浙江省杭州市五县七校2016-2017学年高二上学期期中联考英语试卷
★ 江苏省扬州中学2016-2017学年高二下学期期中考试英语试卷
★ 湖北省荆门市2016-2017学年高二下学期期末质量检测英语试卷
★ 河北省容城中学2017-2017学年高一上学期期中考试英语试题
★ 河南省周口市中英文学校2017-2017学年高一上学期第三次月考英语试题
★ 河北省承德一中2017-2018学年高二上学期第三次月考英语试卷
★ 安徽省安庆市2016-2017学年高一上学期期末考试英语试题 扫描版含答案
★ 河南省南阳市2016-2017学年高一上学期期中质量评估英语试卷(扫描版)
★ 黑龙江省大庆铁人中学2017-2018学年高二上学期期末考试英语试卷
最新
2019-11-15
2019-11-15
2019-11-14
2019-11-14
2019-11-11
2019-11-11