工程项目范围定义的主要目的包括()。

Why do many of the boys avoid certain instruments？

A．They find them too hard to play.

B．They think it silly to play them.

C．They find it not challenging enough to play them.

D．They consider it important to be different from girls.

Why do many of the boys avoid certain instruments？

A．Because they find it not challenging enough to play them.

B．Because they consider it important to be different from girls.

C．Because they find them too hard to play.

D．Because they think it silly to play them.

Why do many of the boys avoid certain instruments？

A．Because they find it not challenging enough to play them.

B．Because they consider it important to be different from girls.

C．Because they find them too hard to play.

D．Because they think it silly to play them.

why do many of t11e boys avoid certain Instruments？

A．They find them too hard to play．

B．They think it silly to play them．

C．They find it not challenging enough to play them．

D．They consider it important to be different from girls．

According to the passage, why do many fish stay in groups？

A. It helps improve their safety.

B. It allows them to swim faster.

C. It helps them fight their predators.

D. It allows them to avoid twists and turns.

According to the passage, why do many fish stay in groups？

A．It helps improve their safety.

B．It allows them to swim faster.

C．It helps them fight their predators.

D．It allows them to avoid twists and turns.

Do you think changes to working practices could avoid the need for larger premises？ (Why？ / Why not？)

It seems to be that their treatment at school is a direct cause. Mathematics and science are seen as mainly male subjects, and therefore, as girls become teenagers, they are less likely to take them up. Interestingly, both boys and girls tend to regard the "male" subjects as more difficult. Yet it has been suggested that girls avoid mathematics courses, not because they are difficult, but for social reasons. Girls do not want to be in open competition with boys, nor do they want to do better than boys because they are afraid to appear less ladylike and attractive.

However, if we examine the performance of boys and girls who have undertaken 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 nursery school, males are encouraged to work on their own and to complete tasks: this is essential behavior. for learning how to solve problems later on. Evidence shows that exceptional mathematicians and scientists have not had teachers who supplied answers.

Apart from that, there can be little doubt that teachers of mathematics and science expect their male students to do better at these subjects than their female students. They even appear to encourage the difference between the sexes, not consciously, but they still do it. Such male-oriented teaching is not likely to encourage girls to take many mathematics and science courses, nor is it likely to support girls who do. It seems certain, then, that where these subjects are concerned, school widens the difference between boys and girls.

Why do teenage girls avoid mathematics courses？

A．They think mathematics is not interesting.

B．They think mathematics is difficult.

C．They think mathematics is competitive.

D．They think boys will not like it either.