45. What is the passage mainly about?

49. How to keep stress proper:(1) Have a balanced life.(2) Have and have healthy food.

（ ）53. Frank showed his ability of organization when he was still a very young boy. As a student, he wishes he could do something to improve the relationship between the teaching staff and the students. And, as a matter of fact, he has that ability.

34. —Tom, let’s hang out after school.  —Sorry. I have _____ Frank to work on the biology report with him. 

57.要是我们接受了他的建议，我们本可以避免犯这样的错误的。

28. While cleaning the snow on the road, _____.

48. (2) Bad stress: Stress can last long if you are___ to deal with your problems. It can actually let you do worse in your daily life.

23. Not until the game had begun _____ at the sports ground. 

47. Different kinds of stress:(1) Good stress: ①You might feel excited when you speak in public.②You will do the job well.③You will ______ if the stress pushes you to prepare beforehand.

30. This pair of shoes_____ my brother’s. It’s too small for him. 

37. What does the underlined word “ despair” mean?

Part Ⅴ Applied Writing (20 Points)Directions: This part is to test your ability to do practical writing. You are required to write a Certificate of Employment according to the information given in Chinese below. You should write your letter (no less than 100 words) on the Answer Sheet.北京大学的约翰史密斯先生将到我校举办关于美国文化的讲座。请根据以下要求以英语教学和研究处的名义写一则通知。(1) 时间：十月十八日；(2) 地点： C102教室。