C
Your final exam is coming, and I think you must be very busy with it. But I think that you will do well.
When you review your lessons, first you must remember what you have learned. Then you must do a lot of exercises to help you get a good score in the exam.
If you are tired before the exam, you will not do well. So a day or two before the exam just try some other things: going out to do some sports, seeing a film and having fun with your friends.
When you take the exam, don't be nervous because you have got ready for it. Then read the questions carefully and write your answers clearly on the paper. Last, you should pay attention to the time. Use the right time to answer each question. I hope what I've said will be useful to you. Best wishes to you.
47. If you feel tired before the exam, you shouldn't .
A. learn from day to night
B. see a film
C. go out to do some sports
D. have fun with your friends
48. The underlined phrase "pay attention to" means "".
A. 使用
B. 注意
C. 放松
D. 花费
49. What's the best title of this passage?
A. Review Your Lessons
B. Work Hard
C. How to Take the Exam
D. How to Have a Rest
50. Which of the following is TRUE?
A. Doing exercises is helpful to you before the exam.
B. You are tired, but you must work hard.
C. We needn't be careful in the exam.
D. The writer doesn't hope that you can get a good score.

47.A 48.B 49.C 50.A

【解析】
47. 根据文章第三段内容，考前疲惫时应尝试做运动、看电影、和朋友玩乐等事，不应日夜学习，故选A。
48. 结合语境“Last, you should pay attention to the time. Use the right time to answer each question.”，可知“pay attention to”意为“注意”，故选B。
49. 文章涵盖考前复习、考前放松、考试时的注意事项，整体围绕如何应考展开，最佳标题为C选项。
50. A选项：由第二段“Then you must do a lot of exercises to help you get a good score in the exam.”可知考前做练习有帮助，表述正确；B选项与第三段建议相悖；C选项与第四段“read the questions carefully”矛盾；D选项与文中作者的祝福和期望不符，故选A。
【答案】
47.A 48.B 49.C 50.A
【知识点】
细节查找、短语词义猜测、主旨大意归纳
【点评】
本文围绕考试给出了从复习到应考的全面建议，题目侧重考查对文章细节信息的提取、短语语境义的理解及主旨的概括能力，解题需紧扣原文内容逐一甄别选项。