Do you believe that only boys do well in science? Does it seem to you that girls have better vocabularies than boys? In your opi

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问题    Do you believe that only boys do well in science? Does it seem to you that girls have better vocabularies than boys? In your opinion, are boys better at building things? If your answer to each of those questions is "Yes" , you are right.
   On the average, males score higher on tests that measure mathematical reasoning, mechanical ability, and problem-solving skills. Females show superior ability in tests measuring vocabulary, spelling, and memory.
   It is known that bones, muscles and nerves develop faster in baby girls. Usually, too, baby girls talk at an earlier age than boys do. Scientists think there is a physical reason for this. They believe that the nerve endings in the left side of the brain develop faster in girls than in boys. And it is this side of the brain that strongly influences an individual’ s ability to use words, to spell, and to remember things.
   By the time they start to school, therefore, little girls have an advantage that boys do not have. Girls are physically more ready to remember facts, to spell, and to read. These, of course, are skills that are important in elementary school.
   But what have the boys been doing in the years before starting school? They have been developing something called aggression. An aggressive person has courage and energy. He feels strong and independent. He is often the first one to start fight.
The word "this" in paragraph 3 refers to______.

选项 A、the difference between boys and girls
B、the ability to solve problems
C、the development of brains
D、the age when babies begin to talk

答案D

解析 “this”出现在文章第三段第三句中,结合上下文可知,this是指前面两句所说的“男女生在骨骼、肌肉、神经发育以及开口说话时间上的不同”。故选D。
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本试题收录于: 英语题库普高专升本分类
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