2022七年级新目标英语周报zyc答案

书面表达One possible version:NOTICEA sports meeting will be held in the playground of our school from next Thursday to FridayAs you know, the pressure of study is very heavy now, especially for those senior 3. So the purpose of the sports meeting is to letevery student get relaxed, as a result of which we students can live happily and heal thilyEveryone is welcome to take part in it. Those who perform excellently at the sports meeting will get prizes. But don' t take theresults so serously because taking part is more important than the result. Good luck to everyone!

1A【解析】做曲线运动的物体的速度方向不断改变,是变速运动,A项正确;做曲线运动的物体的位移大小可以是逐渐变小的,B项错误;做曲线运动的物体,受到的力恒定时,加速度也恒定,受到的力变化时,加速度也变化,C项错误;曲线运动是按质点的运动轨,迹是曲线命名的,其速率可以是变化的,也可以是不变的,D项错误

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