2012-2013学年江西省白鹭洲中学高二下学期期中考试英语试卷(带解析)

适用年级:高二
试卷号:75973

试卷类型:期中
试卷考试时间:2017/7/19

1.选择题(共8题)

1.两个同学肩并肩由楼下走到楼上,他们的体重分别是400N和500N,则他们上楼的功率之比为(   )
2.AC311民用直升机是我国直升机大家族中一款轻型多用途直升机.该机型有中国航空工业集团公司自主研制,是具有国际先进水平的2吨直升机.若一架AC311民用直升机在一次作业时,将1000N的重物在2s内举高2m后,又停在空中10s.则后10s内,直升机对重物做功的功率为(   )
3.长江是我国第一大河,长江全长S米,源头海拔H米,全年平均水流量为Q米3/秒.长江蕴藏着丰富的水力资源,假定不考虑支流并入及途中损失的水量,则长江蕴藏的水力资源为{#blank#}1{#/blank#}瓦.
4.甲、乙两物体在水平外力作用下,沿水平面做匀速直线运动,如果G=2G,甲受的水平外力是乙的3倍,甲的运动速度是乙的4倍,则外力对甲、乙两物体做功的功率之比是(   )
5.甲、乙两物体在水平外力作用下,沿水平面做匀速直线运动,如果G=2G,甲受的水平外力是乙的3倍,甲的运动速度是乙的4倍,则外力对甲、乙两物体做功的功率之比是(   )
6.两台起重机分别提起两件质量相等的货物,甲以0.2m/s的速度匀速运送,乙以0.1m/s的速度匀速运送,则(   )
7.在50m深的矿井中,每分钟有5m3的水涌出,为了保证安全,不让矿井中有积水,下列抽水机的功率最合适的是(   )(g=10N/kg)
8.某起重机将1×104N的重物沿竖直方向提起,重物由静止开始向上做变速直线运动,然后做匀速直线运动,已知重物在开始的30s内上升的高度为16m,在接着的10s内又匀速上升了8m.若空气阻力忽略不计,则在匀速运动过程中,起重机对重物的拉力的功率{#blank#}1{#/blank#}W;在上述的40s内重物运动的平均速度是{#blank#}2{#/blank#} m/s,克服重物重力做功{#blank#}3{#/blank#}J.

2.单项选择(共12题)

9.
_____ relation between China and Russia has developed steadily since Vladimir Putin was re-elected ________ president last May.
A. The; the B. a; the C. The; 不填 D. A; 不填
10.
Tom wants to know if we can ____ John for the night, since he has lost all his money and can go nowhere.
A.put offB.put onC.put upD.put down
11.
Order came that all the army supply ______ to the front before daybreak.
A.be sentB.should sendC.were sentD.should have sent
12.
There was nothing we could do that day ____ him down but _____ him in the house.
A.calm, lockB.to calm, to lock C.calming, locking D.to calm, lock
13.
The study showed a deep fear among the old people of _____ to the care of strangers.     
A.abandonedB.to be abandonedC.being abandonedD.abandoning
14.
To look after my pets properly takes a lot of time but I find it _____.
A.worthyB.worthwhileC.worthD.deserve
15.
The lack of an ______ education denies them a chance to get a good job.
A.accurateB.urgentC.excessiveD.adequate
16.
------ What do you think of Tom? I want to recommend him ____ my manager.
------ Not bad.
A.forB.toC.asD.on
17.
We’ll learn _____ benefits us no matter which country it comes from.
A.whichB.allC.whateverD.anything
18.
It is the most severe situation _______ Japanese _______.
A.that, has faced B.where, has faced
C.that, have facedD.where, have faced
19.
It was not yet dawn ______ the boy got to the school.
A.whenB.thatC.beforeD.until
20.
Everything he _______ to his country.
A.had donatedB.had been donated
C.had to be donatedD.had was donated
试卷分析
  • 【1】题量占比

    选择题:(8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:2

    9星难题:0