2. 外语
  3. It’s generally accepted that there is a correlation between a child’s educational attainment and a family’s poverty level, but n

It’s generally accepted that there is a correlation between a child’s educational attainment and a family’s poverty level, but n

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问题     It’s generally accepted that there is a correlation between a child’s educational attainment and a family’s poverty level, but new research shows that the problem may take root earlier than previously thought.
    A new study in Psychological Science found that at 10 months old, children from poor families performed just【C1】______children from wealthier families, but by the time they turned 2, children from wealthier families were scoring【C2】______higher than those from poorer ones.
    "Poor kids aren’t even doing as well【C3】______school readiness, sounding out letters and doing other things that you would expect to be【C4】______to early learning, " Elliot M. Tucker-Drob of the University of Texas at Austin, lead author of the study, said in a press【C5】______.
    To【C6】______the study, researchers【C7】______the mental abilities of about 750 pairs of fraternal(异卵的)and identical(同卵的)twins from all over the U. S. The participants’ socioeconomic【C8】______was determined based on parents’ educational attainment, occupations and family income.
    Each child was asked to【C9】______tasks that【C10】______pulling a string to ring a bell, placing three cubes in a cup, matching pictures and sorting pegs by color first at 10 months and【C11】______when they were 2 years old. At this time, researchers discovered that during the 14-month window between the aptitude tests, gaps in【C12】______development had started to occur. Children from wealthier families had started to consistently outperform those from poorer ones.
    Researchers【C13】______to disprove a genetic explanation by【C14】______the aptitude tests of each set of twins.
    The【C15】______of the comparison is that children’s genetic【C16】______is oppressed by poverty, though the study stopped short of drawing a scientific【C17】______as to what specifically was causing the achievement【C18】______. Researchers did assume that,【C19】______speaking, poorer parents may not have the time or【C20】______to spend playing with their children in stimulating ways.  
【C9】
选项 A、perform
B、present
C、employ
D、stimulate
答案A
解析 动词辨析题。此处意为“要求他们执行如下任务”，故选perform，意为“执行”。
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