25. Mom promised to buy me a nice gift for my birthday, beyond my imagination.
A. the one B. that C. which D. something
24. in a famous university is what most students wish for.
A. To educate B. Educated C. Being educated D. Educating
23. I wonder what it feels like to be one of _____ really rich. The Browns already have two Rolls-Royces and now they are buying ______ third.
A. the ; a B. 不填;a C. the; the D. 不填;the
22. -“Neal, listen,” she said, looking straight at him. “I ask you not to get_____ in this kind of matter.”
-“It’s none of your business.”
A. caught B. attached C. involved D. connected
第一节 单项填空(共15小题;每小题1分,满分15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,并在答题卡上将该项涂黑。
21. After staying in hospital for long, the patient was advised to go to the seaside to _____ his health.
A. take on B. pick up C. carry on D. make up
21.. (14分) 对于定义域为的函数,如果同时满足以下三条:①对任意的,总有;②;③若,都有成立,则称函数为理想函数.
(1) 若函数为理想函数,求的值;
(2)判断函数是否为理想函数,并予以证明;
(3)(理做文不做) 若函数为理想函数,假定,使得,且,求证.
20.(13分)设函数
(1)求函数的单调区间;
(2)当时,不等式恒成立,求实数的取值范围;
(3)(理做文不做)关于的方程在上恰有两个相异实根,求的取值范围.
19.(12分) 设曲线≥0)在点M(t, )处的切线与x轴y轴所围成的三角形面积为S(t)。
(Ⅰ)求切线的方程; (Ⅱ)求S(t)的最大值。
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