1.选择题- (共8题)
1.
如图所示，从倾角为θ的足够长的斜面顶端P以速度v0抛出一个小球，落在斜面上某处Q点，小球落在斜面上的速度与斜面的夹角为α，若把初速度变为2v0，小球仍落在斜面上，则以下说法正确的是（ ）
2.
北约在对南联盟进行轰炸时，大量使用贫铀炸弹．贫铀比重约为钢的2.5倍，设贫铀炸弹与常规炸弹射行速度之比约为2：1，它们在穿甲过程中所受阻力相同，则形状相同的贫铀炸弹与常规炸弹的最大穿甲深度之比约为（ ）
4.
如图所示，一水平足够长的传送带以恒定的速度v1沿顺时针方向运动，一物体以水平速度v2从右端光滑水平面滑上传送带后，经过一段时间又返回光滑水平面，此时速率为v3，则下面说法正确的是（ ）
5.
如图所示，一水平足够长的传送带以恒定的速度v1沿顺时针方向运动，一物体以水平速度v2从右端光滑水平面滑上传送带后，经过一段时间又返回光滑水平面，此时速率为v3，则下面说法正确的是（ ）
7.
如图，一轻弹簧下端连接在倾角为30°的固定斜面上，一质量为1kg的滑块（可视为质点）从斜面顶端a点由静止开始下滑，到b点接触弹簧，滑块将弹簧压缩至最低点c，然后又回到a点．已知ab两点间距离为0.8m，bc两点间距离为0.2m，重力加速度g取10m/s2．下列说法正确的是（ ）
8.
如图，一轻弹簧下端连接在倾角为30°的固定斜面上，一质量为1kg的滑块（可视为质点）从斜面顶端a点由静止开始下滑，到b点接触弹簧，滑块将弹簧压缩至最低点c，然后又回到a点．已知ab两点间距离为0.8m，bc两点间距离为0.2m，重力加速度g取10m/s2．下列说法正确的是（ ）
2.单项选择- (共8题)
9.
Waves of red light are about twice as long as _______ of blue light.
| A．those | B．that | C．it | D．Ones |
10.
I don’t think the color of the curtains ______ the color of your room perfectly.
| A．fixes | B．fits | C．suits | D．appropriates |
11.
Eventually, the husband could no longer ______ his wife’s complaints about his inability to make much money, and he divorced her.
| A．come up with | B．put up with | C．stand up with | D．bear up with |
12.
______ no bus, we had to take a taxi to go to the station.
| A．There was | B．There to be | C．There had been | D．There being |
13.
______ I have made great progress in my spoken English, I can not express myself freely.
| A．In spite of | B．Even though | C．As though | D．Despite |
14.
AIDS is said_______ the biggest health challenge to both men and women in the earth over the past four years.
| A．that it is | B．to have been | C．that it has been | D．to be |
15.
If you______to her about it yesterday, you ______ what to do now.
| A．should have spoken; would know | B．spoke; would know |
| C．had spoken; would have known | D．had spoken; would know |
试卷分析
-
【1】题量占比
选择题:(8道)
单项选择:(8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：5
7星难题：0
8星难题：3
9星难题：0