2022英语周报高一课标第44期答案

书面表达Dear Lily,I'm sorry to hear that you are feeling sad now. tdliketo oller you some advice.Firstly, find a chance to have a face to face talkyour mother, which will help you two understand.ithother. Secon dly, try your beest to work hard and balancyour lessons and physical health, and your mother willhave conlidence in you. Thirdly, tell your mother that youhave grown up and can deal with some things on your ownand advise her not to woy a bout you. In addition, tellher that you are eager to be independent and eager formore freedonHope to hear your good newsLi Hu

2.D解析:根据玻尔的量子化假设,轨道与能级的关系可知.电子离原子核越近,能级越低,越稳定.故电子处在n=3的轨道上比处在n=5的轨道上离氢原子核近,故A错误;大量氢原子处于n=4的激发态时有C=6条,故跃迁所发射的谱线有6条,故B错误;用光子能量为10.3eV的光照射氢原子,根据跃迁假设,有10.3eV=En13.6eV),解得E。=-3.3eV,从能级图上可以看到,不存在这个“能级”,故C错误;大量处于n=3能级的氢原子向基态跃迁发出的光子能量分别为E3E1=12.09cV,E3-E2=1.89eV,E2一E=10.2eV,有两种光子能量大于锌的逸出功3.34eV,可以发生光电效应,逸出光电子,故D正确

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