unit3whatwereyoudoingwhentheufoarriveTeachinggoals:1.Words:barbershop,well,bathroom,accident,earth,silence,playground,around,strange,kitchen,modern,follow,shirt.2.when,while引导的时间状语从句。Importantanddifficultpoints:1.when,while引导的时间状语从句。2.学习过去进行时态。Teachingaids:atape-recorder,cards.Period4Teachingprocedures:Step1Leadingin1.Greetingsandfree-talk.2.Checkthehomework:Correcttheanswers.Step2Pre-taskSBPage22,Part3.1.Readtheinstructions,pointingtothearticleandthelistofquestions.2.Scanthepassageforthemainidea.T:WhofoundLinda’sdog?(thepoliceofficer’sdog)3.ReadthequestionsbytheSs.Makesuretheyunderstandthem.4.Playtherecording.Sslistencarefully.5.Writeanswerstothequestions.6.Practicereading.7.Correcttheanswers.Step3While-taskSBPage22,4a.1.Readtheinstructions.2.Lookatthepictures.Discussingroups.3.Askstudentstoexplainwhatishappeningineachpicture.4.Completetheworkontheirown.Remindthemtousetimesintheirstories.5.Sharetheirstories.(Ifsomeonecan’tfinishitinclass,doitashomework.)Step5Post-taskSBPage22,4b.1.Readtheinstructions.2.Readthetimes.3.Pairwork:Oneisthepoliceofficer,theotheristhebicyclethief.Beginlikethis:A:Wherewereyouat…?B:Iwasinthepark.A:Whatwereyoudoingthere?B:….Homework:1.FinishSelfcheck,Part3.2.运用过去进行时态when/while来描述上个星期日两人不同的动作，写出五个正确的句子。TimeActionLindaMe8:00amreadEnglishplayfootball12:00amhavelunchreadnewspaper2:00pmhavearestplaycomputergames4:00pmplaybasketballsleep6:00pmdohomeworkwatchTV
