指南针最早用于航海事业，开始于（  ）

B

    You may know the English letters A, B and C, but do you know there are people called "ABC"? You may like eating bananas, but do you know there are people called "banana persons"? If you don't know, I will tell you about it. They are some Chinese people like you and me, but they aren't in China. Why do people call them like that?

    If we call somebody an ABC person, we mean he or she is a Chinese but was born in America. Sometimes, people also call them "banana persons". A banana is yellow outside and white inside. So if somebody is a "banana person", he or she is "white" inside and "yellow" outside. By saying that, we mean he or she has yellow skin(皮肤) but does things in an American way. "Banana persons" were born in America and they live in America for a long time, so they think like Americans and do things like Americans. However, these people still have Chinese blood(血统). Their parents, grandparents or even great-grandparents are from China. They all have black eyes and black hair, so they look like us, Chinese people.

    There are many famous "banana persons" in America. They do very well in America and they are really great in their own fields.

陈丹上课迟到了，总是怨妈妈没叫他；物理测验经常是50分以下，她怪考题太难。对于陈丹的现象认识不对的是（　　）

阅读《小嘎子和胖墩儿比赛摔跤》,填空。

  “是吗？”小胖墩儿____起来，立刻____两步，一闪身____ 了单褂儿，____着腰说，“来吧，是一叉一搂的，还是随便摔？” 在括号里填写的都是描写的词。从这段描写中，我们体会到了小胖墩儿____。