5. Everyone in the hospital hoped that he ______ after a few day’s treatment.
A. took up B. gave up C. made up D. picked up
4.Dad is used to smoking and drinking. There’s no chance _____ I'm able to talk him into_____.
A. whether; giving it up B. of whether; giving them up
C. that; getting rid of them D. which; stopping it
3.- Thank you for your help.
- ________.
A. Sometimes B. Sometime C. Anytime D. Every time
2. I should say it wasn’t a good idea to throw the bottle out of the window from this tall building. It _________ someone.
A. could hit B. can hit C. can have hit D. might have hit
第一节 单项选择(共15小题,每小题1分,满分15分)
1.--- Who will you spend the winter holiday with?
---___________.
A. Smith’s B. The Smiths’ C. The Smiths D. The Smith’s
12.已知函数y1=kx-2和y2=-3x+b相交于点A(2,-1)
(1)求k、b的值,在同一坐标系中画出两个函数的图象.
(2)利用图象求出:当x取何值时有:①y1<y2;②y1≥y2
(3)利用图象求出:当x取何值时有:①y1<0且y2<0;②y1>0且y2<0
10.在同一坐标系中画出一次函数y1=-x+1与y2=2x-2的图象,并根据图象回答下列问题:
(1)写出直线y1=-x+1与y2=2x-2的交点P的坐标.
(2)直接写出:当x取何值时y1>y2;y1<y2
探究园
9.某单位需要用车,准备和一个体车主或一国有出租公司其中的一家签订合同,设汽车每月行驶xkm,应付给个体车主的月租费是y元,付给出租车公司的月租费是y元,y,y分别与x之间的函数关系图象是如图11-3-4所示的两条直线,观察图象,回答下列问题:
(1)每月行驶的路程在什么范围内时,租国有出租车公司的出租车合算?
(2)每月行驶的路程等于多少时,租两家车的费用相同?
(3)如果这个单位估计每月行驶的路程为2300km,那么这个单位租哪家的车合算?
8.已知不等式-x+5>3x-3的解集是x<2,则直线y=-x+5与y=3x-3的交点坐标是_________.
☆我能答
7.已知关于x的不等式kx-2>0(k≠0)的解集是x>-3,则直线y=-kx+2与x轴的交点是__________.
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