大学英语：The tops of a few of the mountains reach up

　　top 在句中做名词用，意思是"顶部，山顶"。例如：

　　1) He was the first to climb to the top of the hill.（他第一个爬上山顶。）

　　2) When we stand on the top of the mountain, the whole city is in sight.(我们站在山顶时，整个城市尽收眼底）

　　请翻译下面的句子，注意top的词类和意思：

　　1) He shouted at the top of his voice.（他放声高叫。）-n.

　　2) He is running at the top of his speed.（他正以最快的速度奔跑。）-n.

　　3) He is the top student in the class.（他是班上的尖子学生。）-adj.

　　4) This is the top news of the week.（这是本周的头条新闻。）-adj.

　　5) His father is a top diplomatic advisor.（他父亲是高级外交顾问。）-adj.

　　6) Mother is going to top the cake with cream.（妈妈准备在蛋糕上浇奶油。）-v.

　　7) He tops his father by half a head.（他比父亲高出半个头。）-v.

　　8) She needs a new skirt to match her top.（她需要一条新裙子配她的上衣。）-n.