高一英语computers课件8.ppt

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1、新课标人教版课件系列《高中英语》必修23.5《unit3computer_period4grammar》LearningaboutLanguageThePresentPerfectPassiveVoiceRevisionCheckthehomeworkexercises.Ex1:1totally2revolution3artificialintelligence4birth5simple-minded 6goby 7dealwith8network9truly10anywayEx2:revolution;network; wen

2、tby;totally;truly;simple-minded;Anyway;dealwithEx3:1 totally 2amazed 3exciting 4excited5cheaply6unluckyrevisionWill/shall+be+V过去分词构成形式:一般将来时被动语态(FuturePassiveVoice)shall用于第一人称:I/wewill用于任何人称Begoingtobe+V过去分词Betobe+V过去分词否定句:一般疑问句:在will/shall后+not把will/shall提前Thestuden

3、tsofclassonewillcleantheplayground.Theplaygroundwillbecleanedbythestudentsofclassone.WearegoingtoholdameetingonSaturdayafternoon.Ameetingisgoingtobeheld(byus)onSaturdayafternoon.Thetwinsaretorepairthemachinetomorrow.Themachineistoberepaired(bythetwins)tomorrow.Thehos

4、twillgivethewinneracomputerastheprize.Thewinnerwillbegivenacomputerastheprize(bythehost).Acomputerwillbegiven(bythehost)tothewinnerastheprize.Lead-inAreyoufamiliarwiththesecomputers?Canyoucallthem?palmtoplaptop/notebookdesktopPCWWPCwrist-worn/wearablePCAwrist-wornPCh

5、asbeeninventedrecently.Apen-likecomputerhasalreadybeendeveloped.Canyoumakemoresentencessimilartothesentencesabove?“have/hasbeendone?”replaceThebuildings;earthquake;destroy1.Astheyearhavegoneby,Ihavebeenmadesmallerandsmaller.2.Awrist-wornPChasbeeninventedrecently.3.Th

6、esportsmeetinghasalreadybeenheldinourschool.Dotheunderlinedpartshavesomethingincommon?Discovering:Has/havebeendone现在完成时被动语态现在完成时的被动语态thePresentPerfectPassiveVoice现在完成时的被动语态的用法1.表示一个被动的动作发生在说话之前,强调对现在造成的影响和结果.Thedoorhasbeenlocked.2.表示一个被动的动作或状态开始于过去,持续到现在,并可能持续下去,常与fo

7、r或since引导的时间状语连用,或用于Howlong...?句型中.Theimportantproblemhasbeendiscussedfornearlytwoweeks.Howlonghasthemachinebeenused?现在完成时的标志:recently/already/yetfor+一段时间/since+时间点句型Hehasbeensenttostudythenewtechnologyinthecompany.否定句:Hehasnotbeensenttostudythenewtechnologyinthecomp

8、any.一般疑问句:Hashebeensenttostudythenewtechnologyinthecompany?特殊疑问句:Wherehashebeensenttostudythenewtechnology?Howmanyshoppingcentersha