2、关于平抛运动的性质,以下说法中正确的是 ( )
A、变加速运动; B、匀变速曲线运动;
C、匀速率曲线运动; D、不可能是两个直线运动的合运动
1.做曲线运动的物体,在运动过程中,一定变化的物理量是( )
A、速率 B、速度 C、加速度 D、合外力
第二节 书面表达(满分25分)
根据图画中的内容,以It’s harmful to Civilization为题写一篇词数为100词左右的短文。文章包括以下三个部分: 1)简述图画内容; 2)说明图画所反映的主题;
3)写出自己的看法。关键词:cheat, quarrel, spit, litter, jump the queue
第一节 短文改错(共10小题;每小题1分,满分10分)
以下标有题号的每一行均有一个错误,请找出,并按下列情况改正:此行多一个词;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。此行缺一个词:在缺词处加一个漏字符号(Λ),在该行右边横线上写出该加的词。此行错一词:在错的词下划一横线,在该行右边横线上写出改正后的词。
Unlike many other places, our hometown is also facing 76._____
the problem of pollution.Unfortunately, people here have 77._____
realized the importance of protection the natural environment. 78._____
Factories have been taken measures to stop pouring polluted 79._____
water into the rivers.The citizens not longer put waste, such 80._____
as rubbish or human waste into the rivers.Every year, 81._____
a great number trees are planted.As a result, 82._____
the water in the rivers are becoming cleaner and cleaner. 83._____
The hills around the city were covered with green trees 84._____
and the air here is much more fresher than before. 85._____
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