2．The author advises high school students to ________.

　　A．give up sports

　　B．choose useful classes

　　C．try their best to get good grades

　　D．get ready for tests the night before

　　解析：选B　细节理解题。根据第三段的"If you have a choice between ... a lot more useful！"可知，作者建议高中生选择有用的课程。

　　3．The last paragraph mainly tells us ________.

　　A．about the trouble caused by drinking and smoking

　　B．about the importance of making friends

　　C．not to go to any party in high school

　　D．not to lose ourselves in high school

　　解析：选D　段落大意题。作者的一些朋友上了高中后开始抽烟喝酒、虚度时光，作者觉得要和这些所谓的朋友断绝往来，把握好自己的人生，不要重蹈他们的覆辙。由此可知，最后一段主要告诉我们在高中几年的学习生活中，不要迷失了自我。

　　B

　　A friend is better than money. A friend is worse than poison in some cases. The two sentences above have opposite meanings and seem to be unreasonable, but they can be explained as follows: the first refers to all good friends who drive us towards good while the second all bad ones who lead us into bad ways.

　　My ideal (理想的) friend is of course a good friend whose goodness is shown below - he has no bad habits, such as smoking and drinking. He lives in frugality (节俭). He studies hard so as not to waste his golden time. At home he honors his parents and loves his brothers; at school he respects his teachers and shares the feelings of his classmates. He treats those truly who are true to him. In a word, he has all the good characteristics (特征) that I don't have. I can follow him as a model. With his help I can be free from all difficulties.

　　Indeed, if I have such a person as my friend, I shall never fear difficulty and I shall never know the existence of the word "failure"．

语篇解读：好朋友比金钱更重要，而坏朋友却比毒药更糟糕，那么我们理想的朋友应该是什么样的呢？本篇文章的作者给出了自己的观点。

　　4．This passage mainly tells us ________.

　　A．how to make friends with others

　　B．how to help friends

　　C．what kind of person the writer's friend is

D．what kind of person we should make friends with