0  380310  380318  380324  380328  380334  380336  380340  380346  380348  380354  380360  380364  380366  380370  380376  380378  380384  380388  380390  380394  380396  380400  380402  380404  380405  380406  380408  380409  380410  380412  380414  380418  380420  380424  380426  380430  380436  380438  380444  380448  380450  380454  380460  380466  380468  380474  380478  380480  380486  380490  380496  380504  447090 

8. I can’t understand the passage though it’s ______.

   A. difficult nothing            B. nothing difficult

     C. something difficult          D. not any difficult

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7. --- I think Tom speaks Chinese well, but you ______ him.

    --- Thank you.

   A. don’t speak so badly as        B. speak as well as      

   C. speak much better than            D. speak worse than

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6. --- Have you decided ______ to the Expo Park with your family in Shanghai?

    ---This summer holiday.

   A. when to go  B. how to go     C. where to go    D. whom to go

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5. My brother has been in America for half a year. He ______ the life there.

   A. is used                     B. used to   

     C. is used to                 D. uses

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4. Most children like to play with Barbie girls. They look ______.

   A. nicely      B. happily      C. beautifully      D. lovely

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3. Have you seen my glasses? I _______ find them.

   A. can’t      B. shouldn’t     C. won’t        D. mustn’t

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2. ---Are you ______ from America ?

    ---No, none of us.

   A. both       B. all          C. any         D. either

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    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. ______ India is _______ old country with ______ long history.

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

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28.(本题满分12分)如图,四边形OABC为直角梯形,A(4,0)、B(3,4)、C(0,4),点MO出发以每秒2个单位的速度向A运动,点NB同时出发以每秒1个单位的速度向C运动,其中一个动点到达终点时,另一个动点也随之停止运动,过点NNPx轴于点P,连结ACNPQ,连结MQ.设运动时间为t秒.

   (1)求AC所在直线的解析式;

(2)请用含t的代数式直接写出点Q的坐标;

   (3)试写出△AQM的面积S与时间t的函数关系式,并求出其最大面积;

   (4)是否存在点M,使△AQM为直角三角形?若存在,求出点M的坐标;若不存在,请说明理由.

姓名       学校      
班级     考号      
 
 
#
 
 

 

 

(除作图可使用2B铅笔外,其余请用黑色墨水签字笔填写)
 
 
 

二、填空题:
9                ; 10               
11                ;12               
13                ;14                
15                ;16                
17                ;18               
 
 
 

请在各题目的答题区域内作答,超出黑色矩形边框限定区域的答案无效
 
 

 

2010年崇川区初中毕业、升学模拟考试

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27.(本题满分12分)

用一副三角板拼成如图①所示的四边形ABCD,其中∠ADC=∠ACB=90°,∠B=60°,AD=DC=cm。若把△ADC的顶点C沿CB所在射线滑动,顶点A始终不离开AC,如图②所示,当点D运动到与C点重合时,即停止运动,如图③所示。

 

 

   (1)如图②所示,C'DAC交于点M,求证:△CC'M∽△A'DM

   (2)运动结束时(如图③)的顶点A沿AC下滑了多少?

(3)△ADC在滑动过程中,△CC'M与△A'DM能否全等?如果能,求此时AA' 的长;如果不能,请说明理由;

   (4)△ADC在滑动过程中,A'C'AB能否平行?如果能,求此时AA' 的长;如果不能,请说明理由。

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