8. I can’t understand the passage though it’s ______.
A. difficult nothing B. nothing difficult
C. something difficult D. not any difficult
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
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
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
4. Most children like to play with Barbie girls. They look ______.
A. nicely B. happily C. beautifully D. lovely
3. Have you seen my glasses? I _______ find them.
A. can’t B. shouldn’t C. won’t D. mustn’t
2. ---Are you ______ from America ?
---No, none of us.
A. both B. all C. any D. either
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, /
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M从O出发以每秒2个单位的速度向A运动,点N从B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N作NP⊥x轴于点P,连结AC交NP于Q,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.
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2010年崇川区初中毕业、升学模拟考试
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'D与AC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'与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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