1.单选题- (共7题)
相反数的倒数是( )
的解为坐标的点(x，y)在平面直角坐标系中的位置是( )
| A．①⑤ | B．①②⑤ | C．②⑤ | D．①③④ |
| A．2．78×106 | B．27．8×106 |
| C．2．78×105 | D．27．8×105 |
2.选择题- (共5题)
根据短文内容，完成下列表格。
An American named Crum invented potato chips in 1853, although that was not his intention (意图). He was a chef(厨师长) at a beautiful restaurant in Saratoga Springs, New York. A regular dish on the menu was fried (油炸的) potatoes, which was an idea that had started in France. At that time, French fried potatoes were cut into thick slices (片).
One day, a dinner guest at the restaurant sent back his fried potatoes to the chef because he did not like them so thick. So Mr. Crum cut the potatoes a little thinner and fried them. The guest did not like those either. That made Mr. Crum angry, so he thought he would just show the man. He sliced the potatoes paper-thin and fried them, thinking that the man would say nothing about it. However, to his surprise, the man loved the thin potatoes very much. Other guests tried them and also liked them. So, Mr. Crum's potato chips were added to the menu. They were called Saratoga Chips.
Finally, Mr. Crum opened his own restaurant to sell his famous chips. Now potato chips are packaged (包装) and sold in stores.
Who invented {#blank#}1{#/blank#}? |
{#blank#}2{#/blank#} was an American chef at a restaurant. |
A dinner guest {#blank#}3{#/blank#} his fried potatoes to the chef because they were so thick. |
The chef was probably glad in the end because {#blank#}4{#/blank#}. |
Now potato chips are packaged and sold {#blank#}5{#/blank#}. |
3.填空题- (共5题)
的解集为 ．
的图象上，若点A的坐标为(－2，－2)，则k的值为________.
的分式方程
的解为正数，则
的取值范围是___________．4.解答题- (共4题)
（1）这个学校九年级学生总数在什么范围内？
（2）若按批发价购买6支与按零售价购买5支的所付款相同，那么这个学校九年级学生有多少人？
的图像与坐标轴交于A,B,C三点,其中点A的坐标为(-3,0),点B的坐标为(4,0),连接AC,B| A．动点P从点A出发,在线段AC上以每秒1个单位长度的速度向点C作匀速运动;同时,动点Q从点0出发,在线段OB上以每秒1个单位长度的速度向点B作匀速运动,当其中一点到达终点时,另一点随之停止运动,设运动时间为t秒.连接PQ |
（2）在点P,Q运动过程中,△APQ可能是直角三角形吗?请说明理由;
（3）如图2,点N的坐标为
,线段PQ的中点为H,连接NH,当点Q关于直线NH的对称点Q`恰好落在线段BC上时,请直接写出点Q`的坐标
(元)之间大致满足如图①所示的一次函数关系．随着补贴款额的不断增大，销售量也不断增加，但每台彩电的收益
(元)会相应降低且与之间也大致满足如图②所示的一次函数关系．
(1)在政府未出台补贴措施前，该商场销售彩电的总收益额为多少元？
(2)在政府补贴政策实施后，分别求出该商场销售彩电台数
和每台家电的收益与政府补贴款额之间的函数关系式；(3)要使该商场销售彩电的总收益
(元)最大，政府应将每台补贴款额定为多少？并求出总收益的最大值．
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【1】题量占比
单选题:(7道)
选择题:(5道)
填空题:(5道)
解答题:(4道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：1
5星难题：0
6星难题：7
7星难题：0
8星难题：3
9星难题：5