0  268222  268230  268236  268240  268246  268248  268252  268258  268260  268266  268272  268276  268278  268282  268288  268290  268296  268300  268302  268306  268308  268312  268314  268316  268317  268318  268320  268321  268322  268324  268326  268330  268332  268336  268338  268342  268348  268350  268356  268360  268362  268366  268372  268378  268380  268386  268390  268392  268398  268402  268408  268416  447090 

9.  The driver was at ______ loss when ________ word came that he was forbidden to

drive for speeding.

A. a, the              B. / ,  /        C. the, the      D. a,  /

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8.  - Did you enjoy yourself at the party?

- Yes. I’ve never been to _________ one before.

A. a more excited                     B. the more excited 

C. a more exciting                    D. the most exciting

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7.  Fitness is important in sport, but of at least ________ importance are skills.

A. fair          B. reasonable       C. equal        D. proper

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6.  It’s usually warm in my hometown in March, but it _____ be rather cold sometimes.

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

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5.  I have ________ all my papers but I still can’t find my notes.

A. looked through                    B. looked for

C. looked after                     D. looked out

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4.  - Now that you like computers very much, isn’t that a good idea to get a ______?

- Well, I’d like to, but I can’t afford such an expensive computer at present.

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

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3.  I have many friends, _______ some are businessmen.

 A. of them         B. from which      C. of who          D. of whom

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2.  The car has been well maintained and is ________ excellent condition.

A. in          B. under           C. on         D. with

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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。

1.  - Why was Professor Johnson unhappy those days?

- Can’t you see it clearly? The only reason was that the theory he stuck to________ wrong.

A. proving                         B. being proved   

C. proved                         D. was proved

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20. (本小题满分12分)已知数列的前n项和为设集合

(1) 求数列的通项公式;

(2) 若以集合A中的元素作为点的坐标,则这些点是否都在同一条直线上? 并说明理由;

(3) “至多只有一个元素”是否正确? 如果正确, 请给予证明; 如果不正确, 请举

例说明.

20(本小题满分12分)如图所示,将一矩形花坛ABCD扩建成一个更大的矩形花园AMPN,要求BAM上,DAN上,且对角线MNC点,|AB|=3米,|AD|=2米,

(I)要使矩形AMPN的面积大于32平方米,则AN的长应在什么范围内?

(II)若AN的长度不少于6米,则当AMAN的长度是多少时,矩形AMPN的面积最小?并求出最小面积.

21(本题满分12分)已知函数(1)求证:函数上是增函数.

  (2)若上恒成立,求实数a的取值范围.

  (3)若函数上的值域是,求实数a的取值范围.

22(本小题满分14分)以为原点,所在直线为轴,建立如图所示的直角坐标系。

,点的坐标为,点的坐标为

(Ⅰ)求关于的函数的表达式,并判断函数的单调性(不必证明);

(Ⅱ)设的面积,若以为中心,为焦点的椭圆经过点

求当取得最小值时椭圆的方程;

(Ⅲ)在(Ⅱ)的条件下,若点的坐标为是椭圆上的两点,

求实数的取值范围。

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