“鲇鱼效应”是渔民发现的一种使捕获的鱼保持鲜活的方法，打捞到船舱里的鱼时间一长容易萎靡不振，死亡率高，而放入几条凶猛的鲇鱼，就把整个鱼群激活了。“鲇鱼效应”体现的哲理是（   ）

世界上最长的山脉位于南美洲，其名称是（　　）

阅读下面短文。然后根据括号中所给汉语意思写出单词并用其正确形式填空。每空一词。

Dear Lingling,

    I'm happy to get your ____（邮件）. This is a ____（照片） of my new school. It's a nice school. There are ____（绿色的） trees everywhere. This is my classroom. It's very big. I'm in Class ____（五）, Grade Seven. There is a ____ （电脑）, a clock and some desks in it. That is a ____（图书馆）. There are many books in it. The playground is very big, ____（也）. We can play ____（棒球） with our friends. Mrs. Green is my English teacher. I like ____（她的） class very much.

    My phone ____（号码） is 879-7659. Please call me.