2. 外语
  3. Opinion polls repeatedly tell us that the only thing Americans worry about more than the environment is their health. This is【C1

Opinion polls repeatedly tell us that the only thing Americans worry about more than the environment is their health. This is【C1

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问题     Opinion polls repeatedly tell us that the only thing Americans worry about more than the environment is their health. This is【C1】______understandable, for health is obviously【C2】______to illness. What makes today’s concern【C3】______health slightly surprising is that Americans are【C4】______healthier now than they have ever been. Many diseases that once【C5】______terror into hearts have either been completely【C6】______or brought under control. Although AIDS is a notable【C7】______， few new mass killers have come out to【C8】______the ones that have been eliminated.【C9】______. health — and the various threats to it — remains everyone’s【C10】______concern. After all, more than half of us (57 percent) will die from either heart disease or cancer, if current【C11】______continues.
    One major problem with any【C12】______of health risks — especially life-threatening ones — is that they【C13】______enormously in their immediacy. For instance, AIDS — if you get it — will probably be【C14】______after a number of years. Cancer induced by smoking or【C15】______to radiation, on the other hand, may take 20 to 30 years【C16】______its fatal effects show【C17】______. In making choices about health risks,【C18】______. it is important to bear in 【C19】______the likely time lag between taking a risk and【C20】______its consequences.
【C12】
选项 A、comparison
B、contrast
C、difference
D、feature
答案A
解析 语义衔接题。由后面的for instance可知，后面是对本句的举例说明。后面主要是对AIDS与癌症等疾病进行比较，是同类事物之间的比较，故答案为[A]comparison“比较，对比”，侧重比较两个或更多东西的异同优劣，强调相同或类似之处。[B]contrast“对比”常构成：in/by contrast to／with，用于两者之间正反对比：[C]difference“不同，差异”；[D]feature“特点”。
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大学英语四级

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