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4. The reason _______ he is late is _______ there was a breakdown on the railway.  

A .why; why  B. because; that  C. that; because  D. why; that

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3. As soon as I got on the bus I realized that I________ my papers in the house.

   A. left    B. was leaving    C. had left    D. have left

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2. I’d like to talk on _____ telephone, but I don’t prefer writing ______ letters.

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

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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,并在答题卡上将该项涂黑。

1. -----Excuse me, could you tell me where I could make a call?

 -----Sorry, I’m a stranger here.

  -----_____________.

   A. Thanks a lot          B. That’s a pity

   C. Thanks anyway        D. I’m sorry to hear it

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22.(本题满分12分)已知点(1,)是函数)的图象上一点,等比数列的前项和为,数列的首项为,且前项和满足=+().

(1)求数列的通项公式;(2)若数列{项和为,问>的最小正整数是多少? 

2010-2011学年度暑期补课阶段考试高二试题

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21.(本题满分12分)

设△ABC的内角A、B、C的对边长分别为a、b、c,,,求B.

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20.(本题满分12分)在△ABC中,a, b, c分别为内角A, B, C的对边,且

   (1)求A的大小;(2)求的最大值.

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19.(本题满分12分)在中,角所对的边分别为,且满足

   .  (I)求的面积;  (II)若,求的值.

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18.(本题满分12分)已知各项均为正数的数列

的等比中项。

(1)求证:数列是等差数列;(2)若的前n项和为Tn,求Tn

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17.(本题满分10分)在中,已知

(Ⅰ)求的值;

(Ⅱ)若的面积,求的值.

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