2. 外语
  3. In families with two working parents, fathers may have more impact【C1】______a child’s language development than mothers, a new s

In families with two working parents, fathers may have more impact【C1】______a child’s language development than mothers, a new s

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问题     In families with two working parents, fathers may have more impact【C1】______a child’s language development than mothers, a new study【C2】______
    Researchers【C3】______92 families from 11 child care centers before their children were a year old, interviewing each to establish income,【C4】______of education and child care arrangements.【C5】______, it was a group of well-educated middle-class families,【C6】______married parents both living in the home.
    When the children were 2, researchers videotaped them at home in free-play sessions with both parents, recording all of their【C7】______The study will appear in the November【C8】______of The Journal of Applied Developmental Psychology.
    The scientists【C9】______the total number of utterances of the parents, the number of different words they used, the【C10】______of their sentences and other aspects of their speech.【C11】______average, fathers spoke less than mothers did, but they did not【C12】______in the length of utterances or proportion of questions asked.
    Finally, the researchers【C13】______the children’s speech at age 3, using a standardized language test. The only predictors of high【C14】______on the test were the mother’s level of education, the【C15】______of child care and the number of different words the father used.
    The researchers are【C16】______why the father’s speech, and not the mother’s, had an effect.
    "It’s well【C17】______that the mother’s language does have an impact," said Nadya Pancso far, the lead author of the study. "It【C18】______be that the high-functioning mothers in the study had already had a strong influence【C19】______their children’s speech development, or it may be that mothers are【C20】______in a way we didn’t measure in the study."
【C18】
选项 A、should
B、could
C、had to
D、used to
答案B
解析 语法辨析题。此处为虚拟语气，表示猜测的语气。根据前文可知，科学家早已证实母亲的语言对孩子的语言发展有影响，但父亲的语言为何在这个阶段影响如此巨大，科学家还不得而知。根据后面的“had already had a strong influence”也可以看出此处为虚拟语气。
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