高中英语 38( unit3 computer_period 4 grammar)课件 新人教版必修2 课件VIP免费

新课标人教版课件系列《高中英语》必修2-3.8RevisionCheckthehomeworkexercises.Ex1:1totally2revolution3artificialintelligence4birth5simple-minded6goby7dealwith8network9truly10anywayEx2:revolution;network;wentby;totally;truly;simple-minded;Anyway;dealwithEx3:1totally2amazed3exciting4excited5cheaply6unluckyrevisionWill/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Thestudentsofclassonewillcleantheplayground.Theplaygroundwillbecleanedbythestudentsofclassone.WearegoingtoholdameetingonSaturdayafternoon.Ameetingisgoingtobeheld(byus)onSaturdayafternoon.Thetwinsaretorepairthemachinetomorrow.Themachineistoberepaired(bythetwins)tomorrow.Thehostwillgivethewinneracomputerastheprize.Thewinnerwillbegivenacomputerastheprize(bythehost).Acomputerwillbegiven(bythehost)tothewinnerastheprize.Areyoufamiliarwiththesecomputers?Canyoucallthem?palmtoppalmtoplaptop/notebooklaptop/notebookdesktopPCdesktopPCWWPCWWPCwrist-worn/wearablewrist-worn/wearablePCPCAwrist-wornPChasbeeninventedrecently.Apen-likecomputerhasalreadybeendeveloped.CanyoumakemoresentencesCanyoumakemoresentencessimilartosimilartothesentencesabove?thesentencesabove?““have/hasbeendonehave/hasbeendone?”?”replaceThebuildings;earthquake;destroy1.Astheyearhavegoneby,Ihavebeenmadesmallerandsmaller.2.Awrist-wornPChasbeeninventedrecently.3.Thesportsmeetinghasalreadybeenheldinourschool.Dotheunderlinedpartshavesomethingincommon?Discovering:Has/havebeendone现在完成时被动语态现在完成时的被动语态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for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:Hehasnotbeensenttostudythenewtechnologyinthecompany.一般疑问句:Hashebeensenttostudythenewtechnologyinthecompany?特殊疑问句:Wherehashebeensenttostudythenewtechnology?Howmanyshoppingcentershavebeenbuiltinthiscity?在have/has后加nothave/has提前疑问词+have(has)+主语+been+V过去分词.+...?1.Theynothavefinishedthehomeworkwhichshouldbefinishedyesterday.2.Doesthenewprogramhavebeendevelopedfortherobot?3.Howmanyhaveteachersbeeninterviewedforthejob?HasthenewprogramhavenotteachershaveGreatchanges________inthecity,andalotoffactories________.A.havebeentakenplace;havebeensetupB.havetakenplace;havebeensetupC.havetakenplace;havesetupD.weretakenplace;weresetupB只有及物动词才有被动语态，不及物动词（词组）没有被动语态,如:happen,takeplace,die,appear,disappear,fail,remain,lie,last,sit,stand,breakout,cometrue,belongto等．Whathashappenedtoyourbrother?Whatwashappenedtoyourbrother?1.ThechildhasbeentakengoodcarebyGrandmaalltheseyears.2.Anoticehasbeenputonthewall.但许多不及物动词加介词或副词构成的短语动词，相当于及物动词，也可以有被动语态。但短语动词是一个不可分割的整体，变为被动语态时，不可丢掉构成短语的介词或副词。ofup二、现在完成时的被动语态应注意的几个问题1.请注意现在完成时的被动语态的两个助动词,即have/has和been,两者缺一不可。2.请注意与一般过去时的被动语态的区别。一般过去时的被动语态所表示的动作或状态与现在的情...