2. 外语
  3. Forget expensive educational DVDs and private tutors, the secret to smart children could be so simple as giving birth【M1】______

Forget expensive educational DVDs and private tutors, the secret to smart children could be so simple as giving birth【M1】______

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问题     Forget expensive educational DVDs and private tutors,
the secret to smart children could be so simple as giving birth【M1】______
to them two years apart. Researchers who studied thousands of
children found two-year gap to be optimum in boosting brain【M2】______
power. Any shorter, and the reading and maths skills of the
older child dipped. The effect was strongest between the first
and second-born, but siblings in bigger families are also【M3】______
benefited.
    The theory comes from Kasey Buckles, an economist whose
own children are, rather unfortunately, just over two years【M4】______
apart in age. She said it is likely that the difference in
academic achievement is linked to the time and resources
parents can invest in a child before a young sibling arrives.【M5】______
    However, waiting for more than two years did not increase【M6】______
the advantage, the Journal of Human Resources will report.
Siblings with a two-year spacing include Albert Einstein and
sister Maja, and Lord Attenborough and younger brother
David. Kasey Buckles, who lead the study told the Sunday【M7】______
Times: "We believe this is the first time anyone has established
a casual benefit to increase the spacing between siblings." The
study also showed that gaps between children in larger
families was also beneficial. Buckles told the newspaper: "The【M8】______
two year gap is significant because the early years are the most
important in a child’s development so dividing your time when
the child is one is more harmful than dividing it when the
child is already at school." The effect more pronounced in【M9】______
families with lower incomes, as those with less money could【M10】______
spend to compromise for lack of time.
【M10】
选项
答案less一more
解析 语篇错误。根据逻辑判断，只有更有钱的家庭能够花费更多，而不是更贫穷的家庭。less应该改成more。该句意为“影响效果在那些低收人家庭中更为显著，因为那些更有钱的家庭可以多花钱来弥补因为缺乏时间带来的不利影响。”
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