2022英语周报 0 七年级 外研 13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!

33.(1)NA(2分(3分)【解析】设杯内水的物质的量为n,则=2,水分子的总数为N=20N;设水分子的直径为d则3x(2),联立解得d(2冮【解析】()以气缸为研究对象,由平衡条件得pStMg-Po s(1分)解得p=p(1分)(ⅱ)设气体温度为T时活塞与气缸底部相距h,因为气体做等压变化,由盖一吕萨克定律得(2分)解得h=示h(1分)气缸下降的距离为Mh=h-ho-(1分)()加热过程中气体对外做的功为W=pS·△h(2分)由热力学第一定律得(1分联立解得MU=Q-(ps-Mg)(-1)。(1分)

以上就是2022英语周报 0 七年级 外研 13答案，更多英语周报答案请关注本网站。