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Uint8Writing学案（5）主备：李荣荣研备：英语教研组时间：学习目标：掌握本单元Reading和SupplementaryReading中一些物理学概念，并能用英语表达出来，完成汉译英练习。学习重难点：能用英语表达物理学概念，完成汉译英学法指导：writing,tanslate.Step1:Warmup(课前热身)一．自主学习功____________________________________功率______________________________________欧姆定律_______________________________电阻器____________________________________交流电_________________________________直流电____________________________________力_____________________________________计算______________________________________方向___________________________________物体______________________________________二．合作探究Step2.TranslateI.TranslatethefollowingphrasesintoEnglish.功和功率______________________________________________一个物体______________________________________________所做的功______________________________________________朝力的方向______________________________________________使用2000牛顿的力________________________________________2米的高度______________________________________________通过下列计算_____________________________________________功率以瓦来计量___________________________________________三.展示讲解Step3WritingII.TranslatethefollowingsentencesintoEnglish.1.所做的功等于力乘以沿着力的方向移动的距离。______________________________________________2.如果有1牛顿的力使一个物体移动1米,那么所做的功是1焦耳。______________________________________________3.功率是所做的功的快慢程度的计量。______________________________________________4.如果一个人或机器每秒做了1焦耳的功,那么功率就是1瓦。______________________________________________5.若温度保持恒定,通过电阻器的电流与电阻器两端的电位差成正比。这就是欧姆定律。______________________________________________6.欧姆定律适用于直流电和交流电。______________________________________________Step4.Exercise根据下列中文内容在英文段落空白处填入适当的语句。假设你是二年级五班的学生。你们班的同学一起给校长写信。听说北方的人们正在受洪水灾害，很多人受伤，还有的人无家可归，你们感到很痛心。你们打算为他们捐款捐物。钱物虽不多，但表达了大家的一片心意，希望此举得到大家的响应。Dearheadmaster,WearethestudentsfromClassFive,GradeTwo.（1）thatthepeopleinthenorthernprovincesaresufferingfromthebigflood.（2）andmanyothershavebecomehomeless.Wethink（3）whoareintrouble.Wesuggest（4）shoulddosomethingforthem.Wecangivethemsomemoneyand（5）thatwedon'twear.Thoughthemoneywesendisnotenough,（6）.Weshouldtryourbesttohelpthoseinneed.Itisourdutyandalsoourpleasuretodosomethingforthem.Wealsohopethateveryoneinourschoolwillrespondtooursuggestion.StudentsofClassFive,GradeTwoStep7.HomeworkWritemorephysicalexpressionsinEnglishafterclass.学后记：________________________________________________________