八年级英语上册《unit 6 natural disasters》（第6课时）教案 牛津译林版

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1、Unit6Naturaldisasters第六课时Grammar(2)TeachingObjectivesTodevelopabetterunderstandingoftheuseofpastcontinuoustenseTounderstandtheuseof‘when’and‘while’TeachingProceduresSTEP1ReviewingthestructureofpastcontinuoustenseAskthestudentswhatwelearnedyesterdaytoreviewthestructureofpastconti

2、nuoustense.STEP2FindingsentencesReadthepassagebelow;findhowmanysentencesarewritteninthistense.Therewasarobberyat151RiverStreetyesterdayafternoon.Someonebrokeintoeveryflatinthebuildingwhenallwereout.ThemaninFlat1wasn’thome.Hewaswashinghisclothesatthelaundry(洗衣店).ThewomaninFlat2wa

3、sn’thomeeither.Shewasvisitingafriendinthehospital.ThepeopleinFlat3weregone.Theywerehavingapicnicatthebeach.ThemaninFlat4wasout.Hewasplayingtennisinthepark.ThecollegestudentsinFlat5wereaway.Theywerewatchingafootballgame.AndtheelderlyladyinFlat6wasoutoftown.Shewasvisitinghergrandc

4、hild.Yesterdaycertainlywasanunfortunatedayforthepeopleat151RiverStreet.Theyhadnoideathatwhiletheywereaway,robbersbrokeintoeveryapartmentinthebuilding.STEP3Elicitingthestructureswith‘when’or‘while’Raisesomequestionsaboutthispassagetoelicitthestructureswith‘when’or‘while’.Whatwast

5、hemaninFlatdoingwhentherobberyhappened?WhilethecollegestudentsinFlat5werewatchingafootballgame,whatwasthewomaninFlat2doing?Writethestructureontheboard.Itisstilldifficultforthestudentstounderstandthestructure.Soitisimportanttogivethemmoreexamplestohelpthemunderstandit.Whensb.+did

6、sth.,sb.was/weredoingsth.Whilesb.+was/weredoingsth.,sb.was/weredoingsth.While/whensb.was/weredoingsomething.Sb.didsthGetthemtoreadthesentencesinPartB,Page101.STEP4Explainingwhenweshoulduse‘while’or‘when’Givemoreexamplesandthenexplainwhenweshoulduse‘while’or‘when’.Emilywasdoinghe

7、rhomeworkwhileStevenwasdoinghisproject.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)Whil

8、e/Whenmymotherwascooking,myfathercamein.（强调短动作发