10. 已知定义在R上的函数f(x)的图象关于点　　　 对称，且满足

　　　 A.-2　　　 B. –1　　　 C.0　　　　 D.1

9. 设函数

8. 水池有两个进水口，1个出水口，每个进出水口进出水速度如图甲、乙所示，某天0点到6 点，该水池的蓄水量如图丙所示(至少打开一个水口)

　　　 给出以下3个论断：

　　　 ①0点到3点只进水不出水；②3点到4点不进水只出水；③4点到6点不进水不出水，则一定正确的论断是(　　 )

　　　 　　　 A.①　 　　　　　　　　 B.①②　　　　　　　　　 C.①③　　　　　　　　　 D.①②③

5. 函数y=f (2x-1)是R上的偶函数，则函数y=f (x)的图象的对称轴是　 (　　 )

4. 设f(x)是定义在R上的偶函数，且

(　　 )

3. 给出下面四个函数：

　　　 　(　　 )

　　　 A.①　　　 B.②和④　　　　 C.①和③　　　　　　　　 D.③

2. 函数的单调递减区间是(　　 )

1. 已知函数　　　　　　　 在　　　 上为增函数，则实数m的取值范围是(　　 )

3．参考词汇：取消cancel 国际合作：international cooperation

The students of our school has a discussion about whether listening test in the National Matriculation English Test should be kept or canceled. Some students think that listening test should not be canceled 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

[参考范文]

The students of our school has a discussion about whether listening test in the National Matriculation English Test should be kept or canceled. Some students think that listening test should not be canceled. They insist listening is among the four basic skills. We therefore can not ignore it. Besides, listening is one of the important channels for us to get information from the outside world. So it should be strengthened today when international cooperation is becoming more and more frequent. But others don’t agree. They think not everyone has to communicate with foreigners in the future, Moreover listening test is unfair to the students in the areas where radio signals cannot be picked up effectively. And for certain reasons, there is a big difference in teachers and equipment between the countryside and the city.

2．词数：100左右(不包括已给出的起始句)