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

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

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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.
【C7】
选项 A、detect
B、discover
C、derive
D、discern
答案D
解析 考查动词辨析。上文提到以前的研究发现老年人有时不如更年轻的人感觉幸福；本句转折指出：但是研究无法______他们的______是因为他们的年龄还是由于人生经历。空格处填入动词接whether…or…(是…还是…)结构，即要在两个原因当中确定一个，而不单单是“发现，察觉”，排除A项和B项；derive的习惯搭配有derive sth．from表示“得到某物”，derive from表示“起源”，都不符合文意。D．discern“辨明，分清”可接whether…or…，表示“在二者中辨别出一个”，符合文意。
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