2022年七年级下册外研版英语周报答案

14.C【解析】CH2CH2CH2Bx与钠发生反应生成CH3CH2CH2CH2CH2CH,A项错误;CH2 CHBrCH2Br与钠发生反应生成或了,B项错误BCH2CH2CH2Br与钠以1:2发生反应生成H292,C项正确;CH3CH2CHB2与钠发生反应生成CHCH2 CH--CHCH, CH3,D项错误。

第三节书面表达Ong possible version:Dear classmatesWith global warming getting worse, - more peopleto live a low-carbon life for the purpose of reducinggreenhouse gas emission. As students we have the responsbility to change our lifestyles to fit the world better.Thefollowing are some small things that may contribute to theimprovement of the environmentFirstly, wash your clothes by hand instead of usingwashing machines. Secondly, don't take elevators unless itis necessary. Climbing stairs does good to your health andthe, environment. Thirdly, remember to bring your ownshopping bags when you go to the supermarket. Last but notleast,go to school on foot or by bicycle. Buses produce(carbon dioxide,tooLet 's take action and be low-carbon people fromnow on.

以上就是2022年七年级下册外研版英语周报答案，更多英语周报答案请关注本网站。