山东省滕州市大坞镇大坞中学八年级英语上册《Unit3WhatwereyoudoingwhentheUFOarrivedSectionA（1a-2c）》教案北师大版第2课时SectionA(1a-2c)学习目标：1.when,while引导的时间状语从句。2.学习过去进行时态。学习过程：Step1Leadingin：1.Greetingsandfree-talk.2.ChecktheHomework（家庭作业）.3.DictatethewordsinUnit2.Step2Pre-task：SBPage18,1a.1.Pointtothesentences.Readthesentences.Explainwhateachonemeans.2.Lookatthepicture.Pointoutthesixpeople.Matchthestatementswiththepeopleinthepicture.3.Checktheanswers.1.___Iwasinthebathroom.4.___Iwasinthekitchen.2.___Iwasinmybedroom.5.___Iwasinmybarbershop.3.___Iwasinfrontofthelibrary.6.___Iwasinthebarber’schair.dbacef1aATVreporterisasking“WherewereyouwhentheUFOarrived?”Matchthestatementswiththepeopleinthepicture.4.Practicereading.Step3While-task：SBPage18,1b.1.Readtheinstructions.MakesuretheSsunderstandwhattheyshoulddo.2.Lookatthedialogueinthepicture.语法：过去进行时态的构成:was/were+doing.用法:表示过去某一时刻或某一段时间正在进行的动作，一般用时间状语来表示。IwasstandinginfrontofthelibrarywhentheUFOarrived.3.Playthetapetwice.Circlethecorrectresponses.4.Checktheanswers.1bListentothereporter’squestionsandcirclethecorrectresponses.a.standinginfrontofthelibrary/studyinginthelibraryb.cleaningmyroom/sleepinglatec.makingamilkshake/cookingdinnerd.gettingoutoftheshower/talkingonthephonee.eatinglunch/cuttinghairgetout出去；离开getoutof从…出来getoutoftheshower洗完澡出来cut剪；切；割Step4Post-task：TalkaboutwhatpeopleweredoingwhentheUFOarrived.Step5While-task：SBPage19,2a.1.Readthesentences.MakesuretheSsunderstandwhattheymean.2.Playthetapetwice.Orderthesestatements.3.Playthetapeagain,correcttheanswers.2aListenandorderthesestatements[1-5].____ThealienvisitedtheMuseumofFlight.____Thealienboughtasouvenir.____AUFOlandedonCenterStreet.____Thealienwentintoastore.____AnaliengotoutoftheUFO.12345SBPage19,2b.1.Readtheinstructions.2.Playtherecording.Write“when”or“while”oneachline.3.Playtherecordingagain,correcttheiranswers.2bListenagain.Completethefollowingsentenceswith“when”or“while”.1.Theboywaswalkingdownthestreet______aUFOlanded.2.Thegirlwasshopping_____shesawthealiengetout.3.______thealienwasbuyingasouvenir,thegirlcalledthepolice.4.______thealienwasvisitingthemuseum,theboycalledtheTVstation.whenwhenWhileWhileNotice:when/while※Whencomesbeforeaquickactionthathappensonlyonce.Theword“while”comesfromanactionthatcontinuesforsometime.※总结1.when可指时间点，又可指时间段，从句中可用延续性动词，也可用非延续性动词。2.while总是指一个时间段，从句中必须用延续性动词。Step6Post-task：SBPage19,2c.1.Pointortthepicture.Askwhateachpersonisdoing.2.Groupwork:Ask“Whatwas…doingwhentheUFOarrived?”3.Askagrouptosayitsconversationtotheclass.Step7GrammarFocusReviewthegrammarboxbyaskingsomestudentstoreadthesentences.Homework:1.Gooverthewordsinthisunit2.用介词或介词短语填空。①Theyweretalkingthephone.②Iwashebarber’schair.③TheboywaswalkingthestreetwhenaUFOlanded.④IhadaveryunusualexperienceSunday.⑤ThealienvisitedtheMuseumFlight.课后反思：本课讲述UFO的故事，学生比较感兴趣，学习兴趣较浓，课堂效果较好，但是对于while和when区别部分同学没弄清，需要加大练习力度。
