2019年高考英語難點37講--難點25 依賴語境的詞義猜測題

however, western health-care systems are still not paying enough attention to the prevention of the disease. there is a need for more programs to educate the public about the causes and prevention of heart disease. instead of supporting such programs, however, the u. s. health-care system is spending large sums of money on the surgical (外科的) treatment of the disease after it develops. this emphasis (強調) on treatment clearly has something to do with the technological advances that have taken place in the past ten to fifteen years. in this time, modern technology has enabled doctors to develop new surgical techniques. many operations that were considered impossible or too risky (有風險的) a few years ago are now performed every day in u.s. hospitals. the result has been a huge increase in heart surgery.
although there is no doubt that heart surgery can help a large number of people, some people point out that the emphasis on the surgical treatment of the disease has three clear disadvantages. first, it attracts interest and money away from the question of prevention. second, it causes the costs of general hospital care to rise. after hospitals buy the expensive equipment that is necessary for modern heart surgery, they must try to recover the money they have spent. to do this, they raise costs for all their patients, not just those patients whose treatment requires the equipment. the third disadvantage is that doctors are encouraged to perform surgery-even on patients for whom an operation is unnecessary—because the equipment and expert skills are there. a government office recently stated that major heart surgery was often performed even though its chances of success were low. in one type of heart surgery, for example, only 15 percent of patient improved their conditions after the surgery. however, more than 100 000 of these operations are performed in the united states every year.
question:4.“to do this” (in paragraph 3) means ________.
a.to help patients recover
b.to increase the number of heart surgeries
c.to get back the money spent on the equipment
d.to buy new equipment for the treatment of heart disease
4.()some of the best-known names in the entertainment industry have taken part in an unprecedented telethon to help victims of the terrorist attacks in the united states.
the benefit (義演）,called“america:a tribute to heroes,”was sponsored by all four major u.s. television networks,abc,cbs,fox and nbc.it was broadcast by three-dozen television,cable and radio networks across the country and aired live to more than a hundred countries around the world.