第三节　　　 书面表达(满分25分)

假如你叫李华，你校同学正在就“高三学生要不要参加体育锻炼” 这一主题展开讨论，请根据下面所给的信息，给某英文报社写一封信，介绍讨论情况，并谈谈你的看法。

注：1. 短文词数100词左右。　　　 2. 内容充实，结构完整，语意连贯。

3. 书写须清晰、工整。　　　　 4. 体育锻炼 physical exercise

第一节　　　 单项选择题(共15小题，每小题1分，满分15分)

21．Every winter many people went to Jinfoshan to see the snow covering　　　 top of it, which is so beautiful　　　 sight.

A．the； a　　　　 　 B．／； the　 　　C．a； the 　　　　 　D．the；／

22. ---Where did Mary’s parents buy the beautiful vase?

---It was in the same village______they spent their holiday last year.

A. that　　　　　　　　 B. when　　　　　 C. as　　　　　　　 D. where

23. We should talk about the things________the childeren’s understanding in a simple way.

A. over　　　　　　　　 B. beyond　　　　 C. above　　　　　 D. under

24. For us Senior Three students, believing that our hard work will______can strengthen our confidence.

A. take off　　　　 　　　B. pay off　　　　 C. keep off　　　　 D. get off

25. ---Oh, it’s nine o’clock! I have to leave for the airport now.

---Don’t worry. As you are our_______guest,I will give you a ______for free.

A. normal; hand　　　　　 B. old; drive　　　　　 C. regular; lift　　 D. usual; help

26. _______that they lost the game, tears came down Kate’s face.

A. On hearing the news　　　　　　　 B. When heard the news

C. The moment she heard the news　　　 D. While hearing the news

27. The boss was very glad that the new comer had finished 　　　　　than 50 percent of the work in two hours .

A．less or more 　　　　　 B．more or less 　　　　 C．no less 　　　　　 D．no more

28. He is so willing to help others that he seldom,_______,refused the people who turned to him.

A. if never　　　　　　　　　　　　　 B. if ever　　　　　　　 　 C. if not　　　　　 　 D. if any

29. We all know it will be next June _______we can really have a rest.

A. when　　　　　　　 　B. before　　　　　　 C. since　　　　　 D. until

30. We should also care about the children from the earthquake-stricken area after_______seemed to have returned to normal.

A. it　　　　　　　　　 B. what　　 　　　　　C. that　　　　　　 D. Which

31. “_______,but Jim made the same mistakes again. ”complained his mother.

A. Although he was told many times　　　　　 B. Having been told many times

C. As he was told many times　　　　　　　　 D. He had been told many times

32. ______, please try your best to solve the problem in time.

A. Ought you get into trouble　　　　　　　　　 B. Must you get into trouble

C. Can you get into trouble　　　　　　　　　　 D. Should you get into trouble

33. ---Jane, have you finished your paper?

---No,I________my sister with her homework all the morning.

A. help　　　　　　　 B. have been helping　　　 C. helped　　　　　 D. was helping

34. ---Tom, it’s time that you _______your own clothes.

---I would rather you _______that for me just like before.

A. washed; had done　 B. wash; have done　　

C. washed; have done　　 D. wash; had washed

35. ---Can you accompany your little brother to the post office now?

---_________, if he is ready.

A. By all means　　　 B. No way　 　　　　　C. My pleasure　　　 D. In no case

21．(12分)已知函数和．其中．

(1)若函数与的图像的一个公共点恰好在x轴上，求的值；　 　　　　　　　　

(2)若函数与图像相交于不同的两点A、B，O为坐标原点，试问：△OAB的面积S有没有最值？如果有，求出最值及所对应的的值；如果没有，请说明理由．

(3)若和是方程的两根，且满足，证明：当时，．

　　　　　　　　　　　　　　　　　　　　　　　　　　 命题：杨明飞

　　　　　　　　　　　　　 　　　　　　　　　　　　　审题：王　 明

绝密★启用前

重庆一中高2010级高三上期第一次月考

20.(12分) 已知函数对任意，满足条件， 且，　 　　　　　　　　

(1)求的值；

(2)若为R上的增函数，证明：存在唯一的实数，使得对任意，都有成立。

19．(12分)已知函数().

(1)若的定义域和值域均是，求实数的值；

(2)若对任意的，，总有，求实数的取值范围.

18．(13分)已知，

(1)求的解析式；

(2)求函数的值域。　 　　　　　　　　

17．(13分)已知的图像关于原点对称．　 　　　　　　　　

⑴求的值．

⑵求(值域为R)的反函数．