1.选择题- (共15题)
4.如图所示，水平台面AB距地面的高度h=0.80 m。质量为0.2 kg的滑块以v0=6．0m/s的初速度从A点开始滑动，滑块与平台间的动摩擦因数 =0.25。滑块滑到平台边缘的B点后水平飞出。已知AB间距离s1=2.2m。滑块可视为质点，不计空气阻力。(g取10m/s2)求：
13.滑板运动是一项惊险刺激的运动，深受青少年的喜爱。下图是滑板运动的轨道，AB和CD是一段圆弧形轨道，BC是一段长l＝7 m的水平轨道。一运动员从AB轨道上的P点以vP＝6 m/s的速度下滑，经BC轨道后冲上CD轨道，到Q点时速度减为零。已知h＝1.4 m，H＝1.8 m，运动员的质量m＝50 kg，不计圆弧轨道上的摩擦，取g＝10 m/s2，求：
14.滑板运动是一项惊险刺激的运动，深受青少年的喜爱。下图是滑板运动的轨道，AB和CD是一段圆弧形轨道，BC是一段长l＝7 m的水平轨道。一运动员从AB轨道上的P点以vP＝6 m/s的速度下滑，经BC轨道后冲上CD轨道，到Q点时速度减为零。已知h＝1.4 m，H＝1.8 m，运动员的质量m＝50 kg，不计圆弧轨道上的摩擦，取g＝10 m/s2，求：
2.单项选择- (共12题)
16.
Every minute counts before the College Entrance Examination. So we must
the limited time.
the limited time.
| A． make out of | B． make the most of |
| C． take charge of | D． take care of |
17.
wild animals while you are in the mountain forest.
| A． Look out of | B． Be careful |
| C． Watch out for | D． Watch out |
18.
Many approaches have been _______ to control the spread of H7N9 Bird Flu.
| A．adapted | B．employed | C．negotiated | D．accessed |
19.
When he came back, he found his bag over the seat.
| A． hanging | B． to hang |
| C． hung | D． being hung |
20.
For miles around me there was nothing but a desert, without a single plant or tree .
| A． in sight | B． on earth |
| C．at a distance | D． in place |
21.
After a heavy finance problem, our market share has reduced
15% 60% in Asian market.
15% 60% in Asian market.
| A． with; to | B． to; by |
| C． at; above | D． by; to |
22.
This is not an economical way to get more water; , it is very expensive.
| A．on the contrary | B．on the other hand |
| C．in short | D．in all |
24.
She observed a man on the opposite side of the way, and recognized it was Charlie.
| A． walked | B． walks | C． to walk | D． walking |
25.
Have you ever met a man who is always the centre of attention
he goes?
he goes?
| A． whenever | B． however |
| C． wherever | D． where |
26.
—What’s wrong? You seem rather angry.
—I was asked to pay this ugly shirt is worth.
—I was asked to pay this ugly shirt is worth.
| A． twice what | B． twice that |
| C． twice of what | D． twice of that |
试卷分析
-
【1】题量占比
选择题:(15道)
单项选择:(12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：0
5星难题：0
6星难题：10
7星难题：0
8星难题：1
9星难题：1