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7. -Do you know the tall man ______ to Mr. King over there?

-Sorry, I don’t know him.

A. to speak       B. speaking        C. is speaking      D. has spoken

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6. Can you ______ your sister from that group of girls?

A. bring out   B. pick up           C. pick out          D. bring up

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5. Because of her fear of flying, Alice would rather take a long train journey ______ travel by air.

A. as         B. to            C. than       D. while

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4. The singer and the dancer ______ come to the meeting.

A. has       B. have        C. are        D. is

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3. We are ________ to say that the songs we heard last night were most     .

A. inspired; inspired             B. inspiring; inspired   

C. inspired; inspiring             D. inspiring; inspired

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2. Going on a trip into ________ space must be quite ________ exciting experience.

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

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第一节 单项填空(共20小题;每小题1分,满分20分)

1. - Would you mind my using your telephone?

-________

A. Yes, go ahead                 B. Of course not, go ahead

C. Of course, help yourself          D. No, you can’t

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21.(本小题满分14分)已知圆C

(1)求出此圆圆心C的坐标和半径r;

(2)求直线y=x被圆C所截得的弦长.

附加题(满分15分)

已知函数

(1)   求函数的定义域及值域;

(2)   判断该函数的奇偶性,并证明你的结论.

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20.(本小题满分14分)已知x,y之间的一组数据如下表: 

x
1
3
6
7
8
y
1
2
3
4
5

(1)以x为横坐标,y为纵坐标在直角坐标系中画出散点图,并说明这两个变量之间的关系是正相关关系还是负相关关系。

(2)求线性回归方程.

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19.(本小题满分14分)为了检测某条生产线上产品的尺寸。现从该条生产线上每隔一定时间取一件产品,共取了50件,测得其产品尺寸后,画得其频率分布直方图如下。

O
 

(1)分别求尺寸在[10,15)和[20,25)内产品的频率。

(2)求尺寸在内产品的个数.

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