[解析]
(1)细节理解题。根据第一段的Students will be much smarter if they have some musical experience.They could improve their classroom skills,like paying attention and following directions.People develop all these skills when they learn music.Making music also lets children use their imagination.It provides students with a chance to try out their own ideas(如果学生们有一些音乐经验,他们会更聪明。他们可以提高课堂技能,比如专心听讲和听从指示。人们在学习音乐时会发展所有这些技能。制作音乐也能让孩子们发挥想象力。它为学生们提供了一个尝试自己想法的机会),可知音乐可以通过提高学生的课堂技能和想象力来让他们变得更聪明,故选B。
(2)词义猜测题。根据划线短语所在的句子Parents can enjoy listening to their children's music instead of seeing them glued to a computer or TV screen(父母可以欣赏听孩子的音乐,而不是看着他们glued to 电脑或电视屏幕上),可知修饰a computer or TV screen,be glued to sth.的意思是"盯着某物看",A.Unwilling to turn on不愿意打开;B.Always looking at总是看着;C.Unwilling to watch不愿观看;D.Always playing总是玩,故选B。
(3)段落大意题。根据第三段的主题句Music builds self﹣confidence,too(音乐也能建立自信),可知,本段主要论述了音乐可以建立自信。故选D。
(4)标题判断题。通读全文,特别是根据第一段的The arts,especially music,should be part of every school's lessons at every grade level(艺术,尤其是音乐,应该成为每个学校每个年级课程的一部分),可知本文主要讲了在学校开设音乐课对学生的重要性,所以A.Music is a must as a course at school(音乐是学校的必修课)能够反映文章的主题,可以作为本文的标题,故选A。