人们常用“冰山一角”来形容事物显露出来的仅仅是其很小的一部分，更多的还隐藏在表面现象之下．事实上，冰山浮在海水中的确只露“一角”，那么这露出的“一角”到底占冰山大小的多少呢？请你用物理知识通过计算来说明．

（已知ρ_海水=1.03×10³kg/m³，ρ_冰=0.9×10³kg/m³）

     Peter is thirteen years old. He is in Grade Two this year. He likes to play football and watch football matches. And he often reads newspapers. He does his best to know where and when there is going to be a football match. Now Peter is having lunch. He is listening to the radio, too. He is very happy because there is going to be a nice football match on TV at four this afternoon. He wants to watch it very much. But he is going to have English and Chinese lessons. He thinks hard and finds a way.
“ Hello, Mrs. Black,” Peter says to his teacher on the telephone, “ Peter is ill in bed. He wants to ask for half a day’s leave ( 请半天假 ).”
“ Oh, I’m sorry to hear that.” says Mrs. Black, “ But who’s that?”
“ It’s my father, Mrs. Black.”

名著阅读，按要求答题。
       《西游记》的作者是明代的          。作者在小说中成功的塑造了唐僧、孙悟空、猪八戒等人物形象、孙悟空大闹天宫后被如来压在            下，后被唐僧解救，唐僧为他取名为           。