阅读理解

　　You'll see a new doctor at a hospital near London if you go there He is very clever, but he never speaks and doesn't go to medical school．He can work 24 hours and never be tired．He is one metre tall with a face like a TV screen．He has no arms or legs, although he has a lot of buttons(按钮)and switches．The new doctor is, of course, a computer．Doctors often need to ask their patients about their health in the past．But busy doctors can only spend a few minutes with each patient．The new machine, however, can ask a patient questions for an hour if necessary．So when the doctor meets his patient he already has a lot of helpful information．

　　Several clinics and hospitals in Britain are using these computers now．The computers show each question on TV screen．Then the patient pushes one of the three buttons：“Yes”,“No”, or“I don't know”．The computer is really quiet human．If a very personal question is asked, it will be followed by“I hope these questions aren't upsetting(使……烦恼)you．”Or if you answer“No”to the question“Is your father alive”, the machine will reply“I am sorry to hear that．”

　　Most patients like the metal doctor．Some patients even prefer it．They can answer very personal questions more comfortably．

　　There are plans for better computers－perhaps ones that can speak．But the machine will never do the doctor's job．They will help doctors to give their patients better service．

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