新目标八年级英语下册Unit3Period4A.ppt

Whatwillyoudo,iftheUFOarrives?,Discussion,Whatwerehe/she/theydoinglast?,Whatwerehe/she/theydoing?,Goforit(八年级下)Unit3hatwereyoudoingwhentheUFOarrived?,Task1,Task,Task3,culture,Task1,Task2,Task3,Task,Task,culture,Task1,Task2,Task,播放,停止,1.最早发现于埃及,据今3400多年.2.第一个目睹飞碟的人是美国人:马丁3.查尔斯.福特是第一个研究飞碟的人.4.中国的飞碟纪录可追溯到公元前139年.5.飞碟的特性:a.变幻莫测的形体b.动静自如的速度c.强大的电磁效应d.攻守自如,简介:UFO是英文UnidentifiedFlyingObject的缩写,意思是未查明身份的飞行物体.1974年,美国人阿诺德发现一组编队飞行的不明物体,并把它形象的比喻为水上打漂的碟子,从此,飞碟一词不胫而走,成了UFO的通俗叫法.,首页,Task1,Task2,Task3,Task4,Culture,AnaliengotoutandwalkeddownCenterStreet.,DearJack,IhadaveryunusualexperienceonSunday.,Ataroundtenoclockinthemorning,IwaswalkingdownthestreetwhenaUFOlandedrightinfrontofme.,Youcanimaginehowstrangeitwas!,Ifollowedittoseewhereitwasgoing,andIwasverysurprisedwhenItwentintoasouvenirshop.,Whileitwaslookingatthesouvenirs,theshopassistantcalledthepolice.,Beforethepolicearrived,thealienlefttheshopandthenvisitedtheMuseumofFlight.,Whilethealienwasinthemuseum,IcalledtheTVstation.Isntthatamazing!Ted,播放,停止,Reading,Listenandreadthee-mailmessage,首页,culture,Task2,Task3,Task4,Task1,DearJack,IhadaveryunusualexperienceonSunday.Ataroundtenoclockinthemorning,IwaswalkingdownthestreetwhenaUFOlandedrightinfrontofme.Youcanimaginehowstrangeitwas!AnaliengotoutandwalkeddownCenterStreet.Ifollowedittoseewhereitwasgoing,andIwasverysurprisedwhenItwentintoasouvenirshop.Whileitwaslookingatthesouvenirs,theshopassistantcalledthepolice.Beforethepolicearrived,thealienlefttheshopandthenvisitedtheMuseumofFlight.Whilethealienwasinthemuseum,IcalledtheTVstation.Isntthatamazing!Ted,播放,暂停,排序,Readcarefully(精读）Numberthepicturesinthecorrectorder,首页,culture,Task,Task3,Task4,经历，体验,about,大约,奇怪的陌生的,跟随追随,令人惊异的,Task2,返回,返回,返回,返回,返回,3,5,4,2,1,首页,culture,Task,Task,Task4,返回,1.WhatkindofexperiencedidTedhaveonSunday?2.Whatwashedoingataround10:00inthemorning?3.Whathappened(发生)then?4.Wasitstrange?5.Whogotout?Andwhatdidhedonext?6.WhatdidTeddowhenhesawthat?7.WhatdidTedfeelwhenthealienwentintoasouvenirshop?8.Whatwasthealiendoingwhentheshopassistantcalledthepolice?9.Whatdidthealiendobeforethepolicearrived?10.WhendidTedcalltheTVstation?11.Isntthatamasing?,IhadaveryunusualexperienceonSunday_.I_,when_.Whileit_,theshopassistant_.Whilethealien_,I_.,Tellastory,首页,culture,Task,Task2,Task4,Task3,PicturePicturePicturePicturePicture,1,2,3,4,5,3bPAIRWORKCoverthestory.Lookatthepicturesandtaketurnstotellthestory.,Oneday,aUFOlandedinfrontofmewhenIwaswalkingdownthestreet.Analiengotout.Iwasveryafraid,andfollowedit.Thealienwentintoasouvenirshop.Whileitwaslookingatthesouvenirs,theshopassistantcalledthepolice.Beforethepolicearrived,thealienlefttheshopandwentintoamuseum.Whenthealienwasinthemuseum,IcalledtheTVstation.Thatwasamazing!,Pairwork:,A:WhatwereyoudoingatnineoclocklastSundaymorning?B:Iwassleeping.Howaboutyou?A:Iwasdoingmyhomework.B:Youarekidding,WhatwereyoudoingatthesetimeslastSunday?,Makeasurvey:,Makeareport:AtnineoclocklastSundaymorning,Iwassleeping.MyfriendliQianwasdoingherhomework,首页,culture,Task,Task2,Task3,Task4,Fillintheblankswiththeproperwords.,Ihadavery_experience_Sunday.At_tenoclockinthemorning,Iwas_downthestreet_aUFOlanded_infrontofme.Youcan_how_itwas!Analien_and_CenterStreet.Ifollowedittosee_itwasgoing,andIwasvery_whenitwentintoasouvenirshop._itwas_atthesouvenirs,theshop_calledthepolice.Beforethepolicearrived,the_lefttheshopandthen_theMuseumofFlight.Whilethealienwas_themuseum,IcalledtheTVstation.Isntthat_!,unusual,on,around,walking,when,right,imagine,strange,gotout,walked,down,where,surprised,While,looking,assistant,alien,visited,in,amazing,(7),(1),(2),(3),(8),(4),(5),(6),playgames,boat,buysomefruit,sellsomefruit,readbooks,playbasketball,fish,lookoutofhiswindow,Inthepicture,itwas4oclockyesterdayafternoon.BillandTom_.Acat_ontheroad.Bob_thewindow.Ann_somethingonthebook.Kate_abook.SallyandTessaweregoodfriends.They_.Dave_coffee_hisfriendDiana.AndyandTony_.Gary_atthenoticeboard.,Gary,wereplayingbasketball,wassleeping,wascleaning,waswriting,wasreading,weretalking,wasdrinking,with,waslooking,wereplayingchess,Exercises,1.He_(draw)ateightyesterdayevening.2.Thegirl_(shop)whenherfriend_(see)her.3.Whilehe_(cook)dinner,hisfriend_(get)outoftheshower.4.HesawtheUFOwhilehe_(walk)downthestreet.,4.过去进行时和一般过去时的区别,1）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）Theywroteletterstotheirfriendslastnight.他们昨晚写了信给他们的朋友。（表达了他们已写好的意思，整个写的过程已完成。）,5.以when和while引导的时间状语从句,1）延续性动词和非延续性动词延续性动词指动作可以延续一段时间，而不是瞬间结束。如：work、study、drink、eat等。非延续性动词指动作极为短暂，瞬间结束。如：start、begin、hit、jump、knock等。,5.以when和while引导的时间状语从句,2）在本单元中，出现了以when和while引导的时间状语从句。when表示“当的时候”。从句中既可用延续性动词，又可用非延续性动词，这些动词既可以表示动作，又可表示状态。从句中的动作既可和主句的动作同时发生，又可在主句的动作之前或之后发生。如：MarywashavingdinnerwhenIsawher.Theboywasstillsleepingwhenhismothergothomeyesterdaymorning.,5.以when和while引导的时间状语从句,while表示“在的时候”、“在期间”。它强调主句的动作与从句的动作同时发生或主句的动作发生在从句的动作过程中。while从句中必须是表示动作或状态的延续性动词。如：TheweatherwasfinewhilewewereinBeijing.ShecalledwhileIwasout.如果主句的动作在从句的动作过程中发生，从句常用进行时。如。Whilewewereswimmingsomeonestoleourclothes.Donttalksoloudwhileothersareworking.,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。,课堂练习,一.翻译下列短语或词组1.在前面_2.理发店_3.睡懒觉_4.从出去_5.打电话给警察_6.跳下来_,课堂练习,一.翻译下列短语或词组7.runaway_8.inhospital_9.atthedoctors_10.talkonthephone_11.lookoutside_12.takeoff_,课堂练习,二.用when，while填空1._thealienwasinthemuseum,Icalledthepolice.2.Theboywaswalkingdownthestreet_aUFOlanded.3._thealienwasvisitingthemuseum,theboycalledtheTVstation.4.Iwascleaningmyroom_thefirebrokeout.5._Lindawasshouting