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.
【M5】
选项
答案young一younger
解析 语篇错误。整句的意思为“她认为孩子学习成绩的差别可能和家长在更小孩子出生前能投入到孩子身上的时间和资源有关系”。这句中提到的是年龄更小的小孩，这是相比较而言的，所以应该用比较级younger，而不是原形young。
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