八年级新目标sxl英语周报20182022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!

10.A【解析】本题主要考查盖斯定律,侧重考查学生的化学分析及计算能力。1gCH3CH=CH2(g)完全燃烧放出能量约为45.76kJ,1gCH(g)完全燃烧放出能量约为5641kJ,A项错误;由反应△(g)CH3CH-CH2(g)△H=-154.3k·mol-,可知CH1CH=CH2(g)的能量低于△(g),B项正确;由于H2O(1)→H2O(g吸收能量,C项正确;由盖斯定律④—(①十③)得到该热化学方程式,D项正确。

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