Unit6NaturalDisastersPERIOD6:GRAMMARIITeachingObjectives●Todevelopabetterunderstandingoftheuseofpastcontinuoustense●Tounderstandtheuseof‘when’and‘while’TeachingProceduresSTEP1ReviewingthestructureofpastcontinuoustenseAskthestudentswhatwelearnedyesterdaytoreviewthestructureofpastcontinuoustense.STEP2FindingsentencesReadthepassagebelow;findhowmanysentencesarewritteninthistense.Therewasarobberyat151RiverStreetyesterdayafternoon.Someonebrokeintoeveryflatinthebuildingwhenallwereout.ThemaninFlat1wasn’thome.Hewaswashinghisclothesatthelaundry(洗衣店).ThewomaninFlat2wasn’thomeeither.Shewasvisitingafriendinthehospital.ThepeopleinFlat3weregone.Theywerehavingapicnicatthebeach.ThemaninFlat4wasout.Hewasplayingtennisinthepark.ThecollegestudentsinFlat5wereaway.Theywerewatchingafootballgame.AndtheelderlyladyinFlat6wasoutoftown.Shewasvisitinghergrandchild.Yesterdaycertainlywasanunfortunatedayforthepeopleat151RiverStreet.Theyhadnoideathatwhiletheywereaway,robbersbrokeintoeveryapartmentinthebuilding.STEP3Elicitingthestructureswith‘when’or‘while’Raisesomequestionsaboutthispassagetoelicitthestructureswith‘when’or‘while’.WhatwasthemaninFlatdoingwhentherobberyhappened?WhilethecollegestudentsinFlat5werewatchingafootballgame,whatwasthewomaninFlat2doing?Writethestructureontheboard.Itisstilldifficultforthestudentstounderstandthestructure.Soitisimportanttogivethemmoreexamplestohelpthemunderstandit.Whensb.+didsth.,sb.was/weredoingsth.Whilesb.+was/weredoingsth.,sb.was/weredoingsth.While/whensb.was/weredoingsomething.Sb.didsth.GetthemtoreadthesentencesinPartB,Page101.STEP4Explainingwhenweshoulduse‘while’or‘when’Givemoreexamplesandthenexplainwhenweshoulduse‘while’or‘when’.EmilywasdoingherhomeworkwhileStevenwasdoinghisproject.两个长动作同时进行ThelightwentoutwhileEmilyandStevenwereworking.一个短动作（主句）在一个长动作（从句）的过程中发生。Whenthephonerang,Iwasreadinginmyroom.短动作（从句）发生时，一个长动作（主句）当时正在进行。Wecanalsousethefollowingdiagramstohelp.Whilemymotherwascooking,myfatherwashelpingher.(强调同时)While/Whenmymotherwascooking,myfathercamein.（强调短动作发生了）Whenmyfathercamein,mymotherwascooking.（强调长动作正在发生）STEP5CompletingtheexercisesonPage101GetthestudentstocompletetheexercisesonPage101.Checktheanswers.STEP6DoingsomeconsolidateexercisesA.Fillintheblankswiththeproperformsofthegivenverbs.1.---What___________you_____________(do)whenIknockedatthedoor?---I___________________(wash)theclothes.2.____________thepolicewomen_____________(watch)thetrafficor__________(have)arestfromseventonineyesterdaymorning?3.Jim______________(draw)apictureinhisroomat4yesterdayafternoon.4.Oneday,he__________(lie)onthegrassand_________(look)atthebeautifulskywhenhefellasleepandhadaverystrangedream.5.I______________(search)theWorldWideWeb.6.---What________you_______(do)duringtheSpringFestival?---I____________(visit)Thailandatthattime.7.WhenSimonarrived,Amy____________(read)abook.8.We______________(clap)ourhandswhiletheperformers_____________(march)acrossthepark.9.---Whydidn’tgotothepartyyesterday?---I_____________(wait)foraimportantcallfromShanghai.10.Whenhe______________(draw)apicture,thetelephonerang.B.TranslatethefollowingsentencesintoEnglish,usingpastcontinuoustense.1.我妈妈正做饭时，我爸爸在看报纸。Whilemymotherwascooking,myfatherwasreadingnewspapers.2.当老师进教室的时候，学生们很吵闹。Whentheteachercameintheclassroom,thestudentsweremakingagreatnoise.3.当孩子们正上课时，地震发生了。While/Whenthechildrenwerehavinglessons,theearthquakestarted.4.当我在购物时，我突然听到一声像打雷一样的巨响。When/WhileIwasdoingsomeshopping,Isuddenlyheardaloudnoiselikethunder.5.丹尼尔在滚雪球的时候，摔倒了。WhileDanielwasmakingasnowball,hefellover.STEP7HomeworkFinishofftheexercisesinthebooks.
