25. Don’t play with the dog, Jack, for it ________ be dangerous at times.
A. shall B. should C. can D. must
24. --What would you give me in ________ for my recorder?
--My MP3. Do you agree?
A. reward B. turn C. preparation D. exchange
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
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
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
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.
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.
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(其中是的导函数),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
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com