Period 2.ppt

Unit3WhatwereyoudoingwhentheUFOarrived?WhatwereyoudoingwhentheUFOarrived?A:WhatwereyoudoingwhentheUFOarrived?B:IwassleepinglateinmybedroomwhentheUFOarrived.WhatwereyoudoingwhentheUFOarrived?IwascookingdinnerinthekitchenwhentheUFOarrived.WhatwereyoudoingwhentheUFOarrived?IwascuttinghairinthebarbershopwhentheUFOarrived.WhatwereyoudoingwhentheUFOarrived?IwasgettingoutoftheshowerfromthebathroomwhentheUFOarrived.WhatwereyoudoingwhentheUFOarrived?WhatwereyoudoingwhentheUFOarrived?WhatwereyoudoingwhentheUFOarrived?WhatwereyoudoingwhentheUFOarrived?WhatwereyoudoingwhentheUFOarrived?WhatwasshedoingwhentheUFOarrived?ExercisesMr.GreenMs.LinLucy2aListenandorderthesestatements[1-5].2bListenagain.Completethefollowingsentenceswith“when”or“while”.ThinkandcompareWhateachpersonwasdoingwhentheUFOlanded.Makesentencewith“when”and"while”Thenimaginewhatyouweredoing.Exercises1.Weweretalking________theteachercameintotheclassroom.2.Iwassinging_________hewasdancing.3.________IwascuttinghairtheUFOlanded.4.Theboyswereplayingbytheriver____Tomfellintotheriver.5.Mymotherwaswashing_______myfatherwascooking.6.Whatwereyoudoing______theUFOarrived?MakesentenceswithwhenorwhilePleaseremember1)过去进行时表示过去正在进行的动作而一般过去时则表示一个完整的动作。如：Theywerewritingletterstotheirfriendslastnight.昨晚他们在写信给他们的朋友。(没有说明信是否写完)2)当动作延续较长时间时或表示厌烦、赞美等感情色彩时常用过去进行时表示。如：Hewasthinkingmoreofothersthanofhimself.他考虑别人的比考虑自己的多。(表示说话者赞扬的口气)4.IwaswalkingdownCentreStreetwhenaUFOlanded.walkdown/along沿着……走land“着陆、下降”动词。takeoff“起飞”e.g.Theplanelandedsafely.(1)“当…的时候”如后面连接的动词为进行时态则用while多于用when。而when通常与瞬间性动词或延续性不强的动词连用。(2)如果while前后的动词都是进行时态while可译为“与此同时