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24.Ms Li’s business _________ very quickly. She opened her first store two years ago; now she has fifty stores all over the country.

    A. transformed        B. ranged            C. responded         D. expanded

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23.The middle-aged man said he would accept the job, so we have asked him to __________ his acceptance in writing.

    A. confirm           B. convey           C. convince          D. consider

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22.I am afraid we cannot include the item you suggest, as it does not __________ the rest of the programme.

    A. come up with      B. look down upon     C. fit in with         D. put up with

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第一节:多项选择(共10小题;每小题1分,满分10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.What I’ve said about him __________ anyone else who is never punctual for appointments. After all, nobody wants to be kept waiting.

    A. makes for         B. goes for          C. stands for         D. heads for

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21.(本小题满分14分)

已知双曲线的离心率为e,右顶点为A,左、右焦点分别为,点E为右准线上的动点,的最大值为

(1)若双曲线的左焦点为,一条渐近线的方程为,求双曲线的方程;

(2)求(用表示);

(3)如图,如果直线l与双曲线的交点为P、Q,与两条渐近线的交点为,O为坐标原点,求证:

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20.(本小题满分13分)

已知,设是曲线的一个公共点,且在此点处的切线相同.记的导函数为,对任意恒有

(1)求之间的关系(请用b表示a、c);

(2)求b的取值范围;

(3)证明:当时,

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19.(本小题满分12分)

在数列{an}中,已知a1=1,an=an-1+an-2+…+a2+a1(n∈N*,n≥2).

(1)求数列的通项公式;

(2)若对于任意的,且恒成立,求的取值范围.

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18.(本小题满分12分)

现有甲、乙两个口袋,甲袋装有2个红球和2个白球,乙袋装有2个红球和n个白球,某人从甲、乙两个口袋中等可能性地各取2个球.

(1)若,求取到的4个球全是红球的概率;

(2)若取到的4个球中至少有2个红球的概率为,求n的值.

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17.(本小题满分12分)

如图,在边长为a的正方体中,M、N、P、Q分别为AD、CD、的中点.

(1)求点P到平面MNQ的距离;

(2)求直线PN与平面MPQ所成角的正弦值.

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16.(本小题满分12分)

设函数图象的一条对称轴是直线

(1)求

(2)求函数的单调增区间;

(3)画出函数在区间上的图象.

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