2022csx七年级新目标英语周报答案

【解析】电源电动势为3.0V,内阻不计,L1两端的电压为3.0V,由图乙可知,此时的电流为0.25A,所以L的电阻R10,259=129,散A项错误;L1消耗的电功率为P=U=3.0×0.25W0.75W,故B项正确;在图乙上做出电阻R的伏安特性曲线如图所示:A0.300.1O1.02.03.0U由于R与L2串联,所以二者的电流是相等的,由图可以读出,此时二者的电压都是1.5V时,二者电压的和等于3.0V,此时的电流为0.2,A,所以L2的电阻R2=29=7.50,故C项正确;L2消耗的电功0.2率为P=U′=1.5×0.2W=0.3W,故D项错误

第三节书面表达One possible versionDeaar PeterHere comes a piece of good news. Chinese SummerCamp, which is intended for international students, istgoing to be held in our school this summer vacation. Sinceyou are interested in Chinese culture, I'd like to invite youto Join it.The Camp is scheduled to last 11 days, from JuliN 8dhto 28th. It covers a wide variety of cultural activities, ranging from studying Chinese daily expressions to attendingsome lectures on Chinese history and traditional culture. Aswe all know, language is closely related to culture, so Fmconvinced that you can dig out Chinese cultural featuresfrom language study. In addition, the Camp provides achance for you to visit some famous museums, which is thebest way to learn about the country. By admiring the historical relics, you will definitely gain a better understanding ofthe country. If you want to be part of it, please sign up forSit before July 2nd at our school website.king forward to your early reply.YourALi Hua

以上就是2022csx七年级新目标英语周报答案，更多英语周报答案请关注本网站。