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25. - So you know Della?

-Yes, it was last week _____ I surfed the Internet

A. that          B. when         C. why           D. whom

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24. Jane’s father has bought a nice sports car, _____ we all know it.

A. as              B. which           C. that           D. and

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23. I was speaking to Ann on the phone when suddenly we were _____.

A. hung up          B. hung back     C. cut down           D. cut off

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22. -Hello, Peter. Would you please go shopping with me after school?

-Sorry. Our school is a boarding school. In school days nobody _____ go out of school without the head teacher's permission.

A. will              B. can            C. may              D. shall

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第一节 单项填空(共15小题;每小题1分,满分15分)从每题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选择。并在答题卡上将该项涂黑。

21. I remember seeing this kind of _____ product in _____ city of Shanghai, which is known as _____ Paris of the East.

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

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22.(本题满分12分)   已知函数.

(Ⅰ) 求f –1(x);

(Ⅱ) 若数列{an}的首项为a1=1,(nÎN+),求{an}的通项公式an

(Ⅲ)  设bn=(32n-8),求数列{bn}的前项和Tn .

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21.(本题满分12分)已知函数f(x)=x3+ax2+bx+c,曲线y=f(x)在x=1处的切线不过第四象限且斜率为3,又坐标原点到切线的距离为,若x=时,y=f(x)有极值.

(Ⅰ)求a、b、c的值;

(Ⅱ)求y=f(x)在[-3,1]上的最大值和最小值.

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20.(本题满分12分) 已知数列{an}满足

  (Ⅰ)求数列的前三项:a1a2a3

  (Ⅱ)求证:数列{}为等差数列.

(Ⅲ)求数列{an}的前n项和Sn.

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19.(本题满分12分)  已知函数

  (Ⅰ)当的 单调区间;

  (Ⅱ)当的取值范围。

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18. (本题满分12分)已知集合A.

  (Ⅰ) 当a=2时,求AB;  

  (Ⅱ) 求使BA的实数a的取值范围.

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