5.(2008 全国II,英语,20)It was in New Zealand ___ Elizabeth first met Mr. Smith.
A. that B. how C. which D. when
4.(09浙江)7.-I’ve read another book this week.
-Well, maybe _____ is not how much you read but what you read that counts.
A. this B. that C. there D. it
3.(09全国2卷)17. It is often that human beings are naturally equipped to speak.
A. said B. to say C. saying D. being said
2.(09浙江卷)4.--I’ve read another book this week.
--Well, maybe is not how much you read but what you read that counts.
A. .this B. that C. there D. it
1.(09江西)27. It was _____ he came bank from Africa that wear _________ he met the girl he would like to marry.
A. when; then B. not; until C. not until; that D. only; when
11.如图所示,一块质量为2 kg、涂有碳黑的玻璃板,在拉力F的作用下竖直向上做匀变速直线运动.一个频率为5 Hz的振动方向为水平且固定的振针,在玻璃板上画出了如图所示的图线,量得OA=1 cm,OB=4 cm,OC=9 cm.求拉力F的大小. (不计一切摩擦阻力,取g=10 m/s2)
10. 如图16是某物体的共振曲线,若是悬挂在天花板上的单摆的共振曲线,则其摆长为L=__________(设g为已知)
9. 如图所示,在竖直平面内有一段光滑圆轨道MN,它所对的圆心角小于,P点是MN的中点,也是圆弧的最低点。在N P之间的点Q和P之间搭一光滑斜面,将一小滑块(可视为质点)分别从Q点和M点由静止开始释放,设圆半径为R,则两次运动到P点所需的时间分别为__________、__________。
8. 如图是M、N两个单摆的振动图线。M的振幅是__________厘米,周期是__________秒;N的振幅是__________厘米,周期是__________秒。开始振动后当N第一次通过平衡位置时,M的位移是__________厘米。如果两摆球质量之比是1∶2,在同一地点,摆长之比是__________。
7. 一个单摆放在甲地,每分振动45次;放在乙地,每分振动43次。甲、乙两地重力加速度之比是__________。
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com