Welcometotheunit.ppt

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1、UnitOnePastandpresentComicstrip&Welcometotheunitinthepast（过去）…atpresent（现在）…Ourlivingareashavechangedalot.WhataboutHoboandEddie?1.WhatisHobolookingfor?Heislookingforhisfood.2.WhereisHobo’sfood?Eddieateit.Readandanswer:1.WhydidEddieeatHobo’sfood?2.IsHobohappy?3.WhatdoesHobothinkofEddie?4.Whatdo

2、esEddiethinkofHobo?Readandanswer:Becausehewasveryhungry.No,heisn’t.HethinksEddiehaschanged.HethinksHobowaskindbefore.1.Eddie,haveyouseenmyfood?Eddie,你看见我的食物了吗？（你知道我的食物在哪儿吗？）baseform原形simplepast过去式pastparticiple过去分词seesawseenhave/has+过去分词[此结构为“现在完成时(presentperfecttense)”,表示过去的动作一直延续到现在，或与现在有一定联系

3、]Somekeypoints(要点):baseform原形simplepast过去式pastparticiple过去分词eatateeaten2.I’vejusteatenit.（I’ve=Ihave)我刚刚把它吃了。现在完成时:haveeatenbaseform原形simplepast过去式pastparticiple过去分词changechangedchanged3.You’vechanged,Eddie.(You’ve=Youhave)你（已经）变了。现在完成时:havechangedbaseform原形simplepast过去式pastparticiple过去分词seesaw

4、seeneatateeatenchangechangedchangeduseusedusedHaveatry！(想一想，试一试)现在完成时:have/hasusedbaseform原形seehave/hasseeneathave/haseatenchangehave/haschangedusehave/hasusedHaveatry！(想一想，试一试)presentperfecttense现在完成时1.Eddie,haveyouseenmyfood?2.I’vejusteatenit.（I’ve=Ihave)3.You’vechanged,Eddie.(You’ve=Youhave)

5、baseform原形simplepast过去式pastparticiple过去分词useusedused我已经使用这支钢笔长达两年了。Ithispenfortwoyears.haveusedHaveatry！(想一想，试一试)Hobo’sfood____inthe_____anhourago.Butitisn’ttherenow.Why?Eddiehasjust____itbecausehewas______.EddiethinksHobohas_______andheisnot_____now.wasbowleatenhungrychangedkindFillintheblanks

6、:DanielDanielispreparinghishistoryproject.Hefoundsomechangesofthetransport(交通工具)inBeijing.HoboandEddiehavechanged.TherearesomechangesinBeijingtoo.coachItisacomfortablebusforcarryingpeopleoveralongway.transportItisthefastestwayoftravelingtoaplacefaraway,butitwillcostyoualotofmoney.planeThousands

7、ofpeoplegotoworkoniteveryday.Itisfastanditisundertheground.undergroundItrunsabovethegroundontracksoveralongway.trainIttravelsalongafixedrouteandhasmanystopstoletpeoplegetonandoff.busItisacarwithadriver,andyouhavetopaythedrivertota