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Human males living with their moms may not expect to have much luck hooking up this Valentine’s Day.【C1】______among the northern
Human males living with their moms may not expect to have much luck hooking up this Valentine’s Day.【C1】______among the northern
admin
2017-09-08
37
问题
Human males living with their moms may not expect to have much luck hooking up this Valentine’s Day.【C1】______among the northern Muriqui monkeys, males that spend the most time around their mothers seem to get a(n) 【C2】______boost when mating time rolls around.
The findings,【C3】______in the Proceedings of the National Academy of Sciences USA, suggest that females in some【C4】______may have evolved to play a critical role in their sons’ reproductive【C5】______. Karen Strier, the paper’s lead author and a professor at the University of Wisconsin-Madison, says the paper "【C6】______" the socalled grandmother hypothesis, a【C7】______in which human females evolved to live past their prime reproductive years to spend more time【C8】______offspring.
The research team observed and【C9】______genetic data from a group of 67 wild monkeys living in a protected reserve in Brazil’s Atlantic Forest: infants, mothers and possible fathers. They found that six out of the thirteen【C10】______males they studied spent more time around their mothers than would be expected by chance. These same six monkeys, on【C11】______, reproduced the greatest number of【C12】______.
The investigators are still trying to【C13】______why. "It’s not until we see moms intervening and helping their sons out," Strier says. "Maybe【C14】______sitting near their moms, they get to see when females are【C15】______active, or maybe they just get more familiar with other【C16】______."
The findings can【C17】______with future conservation efforts for the critically【C18】______animals. Strier says, "the【C19】______thing we would want to do is【C20】______a male out of the group where it was born."
【C1】
选项
A、But
B、When
C、If
D、And
答案
A
解析
文章开头提到和母亲一起生活的男人可能很难找到红粉佳人共度情人节。本句说对于经常待在母亲身边的Muriqui公猴来说,在交配季节会有优势(boost)。空格前后是对比转折的关系.故填入A项But。
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0
考研英语一
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