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  3. If there is no difference in general intelligence between boys and girls, what can explain girls’ poor performance in science an

If there is no difference in general intelligence between boys and girls, what can explain girls’ poor performance in science an

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问题     If there is no difference in general intelligence between boys and girls, what can explain girls’ poor performance in science and mathematics?
    It seems to be that their treatment at school is a direct cause. Mathematics and science are seen as subjects mainly for boys, and therefore, as girls become teenagers, they are less likely to take them. Interestingly, both boys and girls often regard the subjects for boys as more difficult. Yet it has been suggested that girls do not take mathematics courses not because they are difficult, but for social reasons. Girls do not want to be in open competition with boys because they are afraid to appear less feminine and attractive.
    However, if we examine the performance of boys and girls who have taken mathematics courses, there are still more high-achieving boys than there are girls. This difference appears to be worldwide. Biological explanations have been offered for this, but there are other explanations too.
    Perhaps the difference which comes out during the teenage years has its roots in much earlier experiences. From their first days in kindergarten, boys are encouraged to work on their own and to complete tasks. Facts show that outstanding mathematicians and scientists have not had teachers who supplied answers.
    Besides, there can be little doubt that teachers of mathematics and science expect their boy students to do better at these subjects than their girl students. They even appear to encourage the difference between boys and girls. They spend more time with the boy students, giving them more time to answer questions and working harder to get correct answers from them. They are more likely to call on boys for answers and to allow them to take the lead in classroom discussion. They also praise boys more frequently. All of this seems to encourage boys to work harder in science and mathematics and to give them confidence that they are able to succeed.
    Such a way of teaching is not likely to encourage girls to take many mathematics and science courses, nor is it likely to support girls who do. When it comes to these subjects it seems certain that school widens the difference between boys and girls.
The text mainly discusses______reasons for the difference between boys and girls in scientific achievements.
选项 A、biological
B、historical
C、social
D、personal
答案C
解析 由第二段“…not because they are difficult，but for social reasons．"可知正确答案为C。
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