问题 实验题

在做研究平抛运动的实验时:

(1)甲同学通过让小球多次沿同一轨道运动,用描点法画出小球的运动轨迹来研究平抛运动。为了能较准确地描绘运动轨迹,你认为甲同学应进行哪些操作[ ]

A.通过调节使斜槽末端的切线保持水平

B.每次释放小球的位置必须不同

C.每次让小球由同一位置静止释放

D.记录小球位置用的木条(或凹槽)每次必须严格地等距离下降

E.小球运动时不应与木板上的白纸(或方格纸)相接触

F.将球的位置记录在纸上后,取下纸,用直尺将点连成折线

(2)乙同学用闪光照相的办法拍摄一小球做平抛运动的闪光照片的一部分如图所示,图中背景方格的边长均为5.00cm,闪光的时间间隔是0.10s,如果取10m/s2,则小球做平抛运动的初速度大小是____________m/s;小球经过点时的速度大小是____________m/s。

答案

(1)ACE

(2)1.5,2.5

改错题

第Ⅱ卷(共35分)

注意:

1.答题前,考生先在答题卷上将自己的姓名、准考证号填写清楚。

2.答题卷共2页,请在答题卷上各题的答题区域内作答,在试卷上作答无效。

第四部分 写作(共两节,满分35分)

第一节 短文改错(共10小题;每小题1分,满分10分)

此题要求改正所给短文中的错误,对标有题号的每一行作出判断:如无错误,在该行右边横线上划一个勾(√),如果有错误(每行只有一个错误),则按下列情况改正:

该行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉。

该行缺一个词:在缺词处加一个漏字符号(^),在该行右边横线上写出该加的词。

该行错一个词:在错的词下划一横线,在该行右边横线上写出改正后的词。

注意:原行没有错的不要改。

The party went on very good and we all had a good       76. _________

time. Nearly all the people came who were inviting. Jane   77. _________

couldn't come because she had been to Beijing. Tom      78. _________

was also away in country with his parents. Mary's              79. _________

friends brought their instruments and played beautiful     80. _________

music so that everyone could dance. Franco drink too     81. _________

much more and fell over when he was dancing with       82. _________

Ann, that made everyone laugh. Tim told us he'd         83. _________

go to abroad soon. And Steve met Jack and spent all      84. _________

the evening talking to them. All of us enjoyed ourselves.    85. _________

填空题