英语周报 2022-2022八上英语太原市答案

34.(15分)(1)BCE(5分)(2)(10分)①平行光束经棱镜折射后的出射光束仍是平行光束,如下图所示。图中、2为AC面上入射角和扩射角,根据折射定律,有(2分)B20高考宣通设出射光线与水平方向成a角,则有B2=日+a因为:tana=CC(2分)AC1Ltan30°A解得:=30°·+6e联立解得:m=√3…(1分)A②由图示可知,光线在玻璃中传播时间t(1分Ltan30°…1分)在空气中传播时间t22…(1分)因此所用的时间t=1+t2……………(1分)解得:,(3+23)L=…分)

书面表达One posssible versionDear Mr. Smith,I'm Li Hua, a senior 3 student. Learning that your City Culture department is looking for an English editorthis summer, I'm eager to apply for the position.As far as I'm concerned, city culture refers to a citys history, geography, customs, future, and so on. Asa native, I am quite familiar with our citys traditional culture. Besides, I have a good command of ErI' m especially good at English writing. Additionally, Im cooperative and creative, which will give me anadvantage for the position.I'll be greatly honored if I' m chosen for the job. If I'm admitted, please email me at lihua @16com.Yours sincerely,Li Hu

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