A. our descendants may not use computers any more
B. the use of computers should be simplified and our descendants will not use the present computers any more
C. some technologies our grandparents used will not exist in the future
D. computers appear out of date to our generation
48. The word "machines" in Paragraph 3 means ______.
A. word processors B. electronic dictionaries
C. computers D. kitchen appliances
49. From the passage, those about computers are true EXCEPT ______.
A. people have to do what computers requested to get information
B. pictures of buttons in computer programs are not easy to use as knobs on radios
C. today's computers try to do a little of everything, which makes them not easy to use
D. programmers manipulate and show you information in computers
50. According to the author, the future computer should be ______.
A. not too big and not too heavy
B. one device, one chore
C. A and B
D. multi-purpose
Passage 4
It is obvious that the old get sick more frequently and more severely than the young, and 86 percent have chronic (慢性的) health problems of varying degree. These health problems, while significant, are largely treatable and for the most part do not impair the capacity to work. Medicare (医疗保险制度) pays for only 45 percent of older people's health expenses; the balance must come from their own incomes and savings, or from Medicaid, which requires a humiliating means test. A serious illness can mean instant poverty. Drugs prescribed outside of hospitals, hearing aids, glasses, dental care and podiatry (脚病学) are not covered at all under Medicare. There is prejudice against the old by doctors and other medical personnel who don't like to bother with them. Psychiatrists (精神病医师) and mental-health personnel typically assume that the mental problems of the old are untreatable. Psychoanalysts, the elite (精英分子) of the psychiatric profession, rarely accept them as patients. Medical schools and other teaching institutions find them uninteresting. Voluntary hospitals are well known for dumping (倾销,倾倒) the "Medicare patient" into municipal hospitals; municipal hospital in turn funnel (使集中) them into nursing homes, mental hospitals and chronic disease institutions without the adequate diagnostic (诊断) and treatment effort which might enable them to return home. Persons who do remain at home while in ill health have serious difficulties in getting social, medical and psychiatric services b
rought directly to them.
Problems large and small confront the elderly. They are easy targets for crime in the streets and in their homes. Beca
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