26. Whenever and wherever we are, keep in mind that we should listen more to others. It’s wrong to express ourselves without thinking. Just as we all know, 　　　　　.

A. a good beginning makes a good ending　　 B. a still tongue makes a wise head

C. a great hope makes a great man　　　　　 D. a good husband makes a good wife

25. You 　　　　　use your cell phone here in our hospital because of the disturbance to the electronic equipments! It’s forbidden.

A. shouldn’t　　　　 B. may not　　　　　　 C. needn’t　　　　　　　 D. mustn’t

24.--Don’t look down upon Bob. He has his own advantages.

--Oh, yes.　　　　 　others are weak, he is strong.

A. If　　　　　　　 B. Where　　　　　　　 C. Though　　　　　　　 D. When

23. Alice left the company half a month ago. Her work 　　　　　unfinished since.

A. has left　　　　　 B. was left　　　　　　 C. is leaving　　　　 D. has been left

22. In order to support the big family, he worked so hard that 　　　　　　he made himself ill.

A. occasionally　　 B. purposefully　　　　　 C. normally　　　　 D. eventually

第一节单项填空(共l5小题；每小题l分，满分l5分)

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

21. While he was at　　　　　 　college, he took part in political activities, and was soon thrown into 　　　　　　prison.

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

24．(本小题满分10分)

　　　 设函数

　 (1)求函数的值域；

　 (2)若，求成立时的取值范围。

23．(本小题满分10分)

　　　 已知圆锥曲线是参数)和定点，F₁、F₂是圆锥曲线的左、右焦点。

　 (1)求经过点F₂且垂直地于直线AF₁的直线的参数方程；

　 (2)以坐标原点为极点，轴的正半轴为极轴建立极坐标系，求直线AF₂的极坐标方程。

选修4-5：不等式选讲：