2. 考研
  3. 　　Do people get happier or more foul-tempered as they age? Stereotypes of irritable neighbors【C1】________, scientists have been

　　Do people get happier or more foul-tempered as they age? Stereotypes of irritable neighbors【C1】________, scientists have been

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问题 　　Do people get happier or more foul-tempered as they age? Stereotypes of irritable neighbors【C1】________, scientists have been trying to answer this question for decades, and the results have been 【C2】________. Now a study of several thousand Americans born between 1885 and 1980 reveals that well-being【C3】________increases with age but overall happiness【C4】________when a person was born.
　　【C5】________studies that have【C6】________older adults with the middle-aged and young have sometimes found that older adults are not as happy. But these studies could not【C7】________whether their【C8】________was because of their age or be cause of their【C9】________life experience. The new study, published online January 24 in Psychological Science, 【C10】________ out the answer by examining 30 years of data on thousands of Americans, including【C11】________measures of mood and well-being, reports of job and relationship success, and objective measures of health.
　　The researchers found, after controlling for variables【C12】________health, wealth, gender, ethnicity and education, that well-being increases over everyone’ s lifetime. 【C13】________people who have lived through extreme hardship, such as the Great Depression, 【C14】________much less happy than those who have had more【C15】________lives. This finding helps to【C16】________why past studies have found conflicting results—experience【C17】________, and tough times can【C18】________ an entire generation’ s happiness for the rest of their lives. The【C19】________news is, 【C20】________we’ ve lived through, we can all look forward to feeling more content as we age.
【C16】
选项 A、exhibit
B、explain
C、estimate
D、establish
答案B
解析 考查动词辨析。本句指出：这一发现有助于________为什么过去的研究发现总是得出相互矛盾的结果。破折号后面的部分则给出了其中原因。因此，空格处填入的动词应表示对原因的解释，只有B．explain符合文意。exhibit展览，显示，提出(证据等)”，estimate“估计，判断”，establish“建立，创办”，均不符合题意。
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