2022英语周报HZX37答案

第四部分第二节Iwo davs before my birthday last vear. Dad came home earlv. As usual. Ihelped him carry his bags into his study: When I turned to leave. he said: "Hey. wouldyou like to help me clean my comb? It's been a while since I last cleaned"It hit methen why. as a child. helping my dad clean his comb was such a joy. That routinemeant that my dad was home early to spend the evening with Mum and I. It meantwould watch TV with us or play a few video games with me. It meant a happyloving familyI pass the clean comb back to Dad. I noticed the wrinkles next to his eyes.They are more noticeable when he smiles. but his smile is still as heartw arming asbefore. The smile of a father who just wants a good life for his family. Dad carefullyplaces his comb on top of his wallet. After so many years. he still organises hispersonal items in the same careful way. I guess some things never change. And forthat. I'm glad

1l.AD【解析】本题考查电磁感应及电容器等知识,目的是考查学生的分析综合能力。对电容器极板间的带电颗粒受力分析有↓q=mg,解得U=10V,选项A正确;金属棒顺时针运动,由右手定则可知,电容器下极板带正电荷,选项B错误;由公式=RQ=l,解得每秒钟通过电阻的电荷量为1C,选项C错误;由公式E=B=U、=2=2,解得a=5×10mad/s选项D正确

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