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25.  Don’t play with the dog, Jack, for it ________ be dangerous at times.

    A. shall         B. should        C. can          D. must

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24.  --What would you give me in ________ for my recorder?

--My MP3. Do you agree?

    A. reward           B. turn          C. preparation     D. exchange

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23.  --Would you take this along to the office for me?

--________.

    A. With pleasure   B. That’s right        C. Never mind        D. Don’t mention it

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22.  --Would you like to buy a car here?

--Yes, but I’d like to buy ________ made in Shanghai.

    A. one          B. that          C. it            D. the one

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21.  --Which of the two poems do you like better?

-----________ shorter one, of course. I think it’s really ________ most interesting one.

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

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23.(本题满分10分)坐标系与参数方程选做题

在直角坐标系xoy中,以o为极点,x轴正半轴为极轴建立极坐标系,曲线C的极坐标方程为,M,N分别为C与x轴,y轴的交点

(1)写出C的直角坐标方程,并求出M,N的极坐标;

(2)设MN的中点为P,求直线OP的极坐标方程.

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22.(本题满分10分)不等式选讲选做题

设函数

(1)解不等式

(2)若关于的不等式的解集不是空集,试求的取值范围.

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21.(本题满分12分)

已知(),直线与函数的图像都相切,且与函数的图像的切点的横坐标为1.

(Ⅰ)求直线的方程及的值;

(Ⅱ)若(其中的导函数),求函数的最大值;

(Ⅲ)当时,求证:

请考生在第22,23两题中任选一题做答,写出必要解答过程,如果多做,则按所做的第一题计分

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