2022英语周报八年级外研B+卷第10期C1版答案

8A【解析】本题主要考查氯己定的结构性质,侧重考查学生对基础知识的应用能力。氯己定的分子式为Ca2H2C2No,A项正确;根据氯己定的结构简式,两个苯环处于对称位置,所以其苯环上的一溴代物只有两种,B项错误;氯已定的结构中有两个苯环,可与6mol氢气加成,另外其结构中还有4个O一N,所以最多可与10mol氢气加成,C项错误;氯已定中不含羟基,也不含羧基,不能发生酯化反应,D项错误

【参考范文】Middle School Students' Attitudes Towards HandwritingAccording to a recent survey conducted by our school, about 85.8 pereent of middle school students thinkthat their handwriting is poor. Yet for various reasons, many students don't want to improve theirhandwriting, 51. 5 percent of the students hold the view that they can just use a computer, so there is no needto waste time improving their handwriting, and 32. 3 percent believe that they are so busy with the study thatthey do not have time to practice. 10. 9 percent insist that practicing handwriting is uscleAs the saying goes, writing style shows the man. Beautiful and neat handwriting is beneficial, especiallyfor middle school students. Therefore, in my opmion, more emphasis should be placed on this aspect infuture

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