【正确答案】 D

【答案解析】[听力原文] 23-25
The piano and violin are girls'instruments．Drums and trumpets are for boys． According to psychologists Susan O'Neil and Michael Bottome, children have very clear ideas about which musical instruments they should play．They find that despite the best efforts of teachers these ideas have changed very lime over the past decade．They interviewed 153 children aged between 9 and 11 from schools in northwest England． They asked them to identify 4 musical instruments and then to say which they would like to play most and which they would least like to play．They also asked the children for their views on whether boys or girls should not play any of the 4 instruments．The piano and the violin were both ranked more favorably by girls than by boys, while boys prefer the drums and trumpets．There was broad agreement between boys and girls on which instruments each sex should play and the reasons vary．And while almost half of all boys said they avoid certain instruments because they were too difficult to play, only 15% ofirls gave that as a reason．Earlier studies indicated that very young school children aged between 5 and 7 showed no bias in choosing musical instruments．but their tastes became more clear between the ages of 8 and 10．One survey of 78 teachers suggested that after that age both boys and girls begin to restrict themselves to the so- called male or female instruments．

[解析] 本题问“为什么两位心理学家要对孩子们进行访谈?”这是本独白的主题：乐器分男孩乐器和女孩乐器吗?独白中多次提到了这一点，如“They asked them to identify 4 musical instruments and then to say which they would like to play most and which they would least like to play．”由此可知，正确答案为[D] 选项。

【正确答案】 B

【答案解析】[解析] 由独白中“Earlier studies indicated that very young school children aged between 5 and 7 showed no bias in choosing musical instruments, but their tastes become more clear between the ages of 8 and 10.”，可知，当孩子小(5-7岁)，他们没有这个偏见，但当他们到8-10岁时，这种观点就很明显，因此正确答案为[B] 选项。