试题与答案

如图所示,A、B为两个大小和材料都相同而转向相反的轮子,它们的转轴互相平行且在同

题型:选择题

题目:

如图所示,A、B为两个大小和材料都相同而转向相反的轮子,它们的转轴互相平行且在同一水平面内.有一把均匀直尺C,它的长度大于两轮转轴距离的2倍.把该直尺静止地搁在两转轮上,使尺的重心在两轮之间而离B轮较近.然后放手,考虑到轮子和尺存在摩擦,则直尺将(  )

A.保持静止

B.向右运动,直至落下

C.开始时向左运动,以后就不断作左右来回运动

D.开始时向右运动,以后就不断作左右来回运动

答案:

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题型:完形填空

第Ⅱ卷 非选择题(共35分)

第四部分 写作(共两节,满分35分)

第一节:短文填词(共10小题;每小题1分,满分10分)

阅读下面短文,根据以下提示:1)汉语提示,2)首字母提示,3)语境提示,在每个空格内填入一个适当的英语单词,并将该词完整地写在右边相对应的横线上。所填单词要求意义准确,拼写正确。

Dear Tom,

Very pleased to know that you’re coming to study in Beijing.

Here is an _____ (介绍) to a school of Chinese. Compared                 76. __________

with other schools, it is a suitable one that you can go to. _____,              77. __________

it is very _____ (方便) for you to get there by No. 16 bus.        78. __________

Next, the classes are very small. There are 24 teaching h               79. __________

a week. _____class, you can enjoy sports and activities                    80. __________

with other students. S    with a Chinese family will                   81. __________

provide you with a chance to _____ (练习) your Chinese                 82. __________

and _____ more about the Chinese family life. The time suits        83. __________

you and 3,000 yuan is paid per month. I’ll get in t    with                  84. __________

them _____ you show interest in this school.                                85. __________

Looking forward to hearing from you soon.

Yours,

Li Hua

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