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题干意为:在全世界范围中进行的 Roper Starch调查发现大多数美国人认为高收入的工作更令人满意。利用题干中的名词及名词短语 Roper Starch Worldwide survey, most Americans, jobs, higher pay作为定位线索,在第五段中找到相关句 A survey conducted last year by Roper Starch Worldwide, Inc. , found that almost 70 percent of the respondents(呼应前句中的 Americans) said they would be happier if their families had twice as much household income相关句意为“Roper Starch Worldwide进行的调查发现70%的美国人说如果他们的收入增加一倍的话,他们会更加高兴”,该句内容与题干内容一致。