2. 外语
  3. Living is risky. Crossing the road, driving a car, flying, swallowing an aspirin tablet or eating a chicken sandwich--they can a

Living is risky. Crossing the road, driving a car, flying, swallowing an aspirin tablet or eating a chicken sandwich--they can a

admin2010-05-09  46
问题     Living is risky. Crossing the road, driving a car, flying, swallowing an
aspirin tablet or eating a chicken sandwich--they can all be fatal. Clearly
some risks worth taking, especially when the rewards are high: a man                   【S1】______
surrounded by flames and smoke generally considers that jumping out of a
second floor window is an acceptable risk to save its life. But in medicine a          【S2】______
few procedures, drugs, operations or tests are really a matter of life and death.      【S3】______
There may be sound medicine reasons for accepting electrical shock treatment,          【S4】______
but such reasons are totally dependent in the balance of risks and benefits for        【S5】______
the patients. Surgery for cancer may cure or prolong a life, but the removal of
tonsils (遍桃体) cannot save anything a sore throat. Blood pressure drugs              【S6】______
definitely help some people live after a heart attack, but these same drags may
be both necessary and harmful for those with only mild blood pressure                  【S7】______
problems. Deciding how much discomfort and risk we are preparing to put up             【S8】______
with in the name of better health is a high personal matter, not a decision we         【S9】______
should remain to doctors alone.                                                        【S10】______
【S7】
选项
答案necessary→unnecessary
解析 语篇逻辑错误 此处but提示与上文形成转折关系。上文说“确实能够帮助一些人继续生存”，那么下文转折后的意思就应该是否定的。另外necessary与下文的harmful用and连接是矛盾的，所以要用表示否定意义的unnecessary。
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