北师大版高中英语选修7课件： Unit 20 Lesson 1Grammar.ppt

unit20 unit20newfrontiers grammar 一般将来时 review 一般将来时表示将要发生的动作或出现的状态 由shall will 原形动词 或am is are goingto 原形动词构成 动词如go come leave begin等可用现在进行时表示未来计划或安排的动作 am is are to 原形动词 表示计划或安排好的动作 命令 am is are about 原形动词表示最近将发生的动作 一般不带时间状语 动词come go arrive leave start begin return的一般现在时可以表示将来 主要用来表示在时间上已确定或安排好的事情 将来时 除了will may might 不带to的不定式 现在进行时 begoingto结构和一般现在时之外 可以用下列时态和动词形式谈论将来 将来进行时 进行时态的用法 某一时间点正在发生的动作 或者某一段时间内一直发生的动作 将来进行时态只不过把时间放在了将来 所以将来进行时态表示将来某个时间点正在发生的动作或者将来某一段时间内一直在进行的动作 常用时间状语 soon tomorrow thisevening onsunday bythistimetomorrow intwodays tomorrowevening 用将来进行时谈论在将来某个特定的时间进行的活动 e g at9a m onsaturday i llbelisteningtoprofessorwillard i llbeworkingalleveningsoiwon tbeabletoseeyou 将来完成时 将来完成时表示到将来某一时间点之前已经完成的动作或者将来某一时间以前一直持续的动作 并往往对将来某一时间产生影响 常用的时间状语一般为 by 将来时间短语或bythetime before when等引导的句子 谓语动词常用非延续性动词 用将来完成时讲述在将来某个特定的时间之前完成的活动 e g bytheendofthecentury wewillhavediscoveredotherplacesinoursolarsystem hewillhavewrittentwobooksbynextsummer 1 bychristmasthey sell overfivemilliongreetingscards 2 bythissummerthecitycouncil spend 2milliononredecoratingtheoldtown willhavesold willhavespent 将来完成时练习 3 by2030theclimateineurope become muchwarmer 4 bytheendofthisdecadeourtown invest onemilliondollarsintheindustry willhavebecome willhaveinvested 在when assoonas until before和after引导的肩负状语从句中 表示将来的时间时 不用will 用一般现在时 e g whenyougethome you llreceivegoodnews 时间状语从句 如果我们想强调这样一个事实 一个活动在另一个活动发生之前完成 我们用现在完成时代替一般现在时 e g afteryou vedonetheshopping you llhaveapleasantsurprise i llhelpyouassoonasi vefinishedthewashingup 6 inwhichofthesesentencesdoweemphasisethattheunderlinedactivitymustbefinishedbeforetheotheronehappens 1 whenyougethomeonfriday you llreceivegoodnews 2 afteryou vedonetheshopping you llhaveapleasantsurprise 7 whichofthetensesbelowrefersto a somethingthatwillfinishbeforeacertaintimeinthefuture b somethingthatwillbeinprogressatacertaintimeinthefuture futureperfectbytheendofthecentury wewillhavediscoveredotherplacesinoursolarsystem futurecontinuousatnineo clockonsaturdaymorning i llbesittinginthefrontrowandlisteningtothegreatprofessorwillard a futureperfectb futurecontinuous 8 completethesentencesusingthepresentperfect 1 i llhelpyouassoonasi 2 shecan tbuyadigitalcamerauntilshe 3 youcanleavetheexamroomonlyafteryou 4 i llphoneyouwheni 5 we llletyouknowassoonas 6 yourtelephonelinewillstartworkingonlyafter 1 people use solarenergyeveryday 9 completethesepredictionsabouttheworldin2020byputtingtheverbsinbracketseitherinthefutureperfectorthefuturecontinuous willbeusing 2 people use upallnaturalsourcesofoil 3 people travel intospaceonaregularbasis 4 people eat onlyfoodcreatedbyspecialists 5 traditionalfarms disappear willhaveused willbetraveling willbeeating willhavedisappeared 6 manynewgalaxies discover 7 marsandvenus explore and describe indetail 8 scientists study thechanceofpeoplesettinginothergalaxies willbestudying willhavebeendiscovered 10 lookattheprogrammeofthefuturologists conferenceandthecuesbelow 1 7 onpage21 writefullsentencesusingthefutureperfectorthefuturecontinuous 1 5p m onfriday prof howardgreengivesalectureonalternativesourcesofenergy at5p m onfriday prof howardgreenwillbegivingalectureonalternativesourcesofenergy 2 saturdaylunchtime theparticipantslistentotwolectures bysaturdaylunchtime theparticipantswillhavelistenedtotwolectures 3 2 30p m onsaturday everyonehaslunch at2 30p m onsaturday everyonewillbehavinglunch 4 saturdaynight theparticipantshaveareception onsaturdaynight theparticipantswillbehavingareception 5 sundaymorning theydiscussafewproblemsofthefuture onsundaymorning theywillbediscussingafewproblemsofthefuture 6 sundaynoon theparticipantsattendtheclosingceremony atnoononsunday theparticipantswillbeattendingtheclosingceremony 7 theendoftheseminar thefuturologistsdiscussmanyimportantissues bytheendoftheseminar thefuturologistswillhavediscussedmanyimportantissues 11 workinpairs makepredictionsabouteachotherintenyears time saywhatyouthinkaboutyourpartner spredictions languageinuse examplea ithinkthatin10years timeyou llbeworkinginabarbershop b really 1 willhe shebelivinghereorabroad where 2 howmanyjobswillhe shehavehadbythattime 3 whatwillhe shehaveachieved 4 willhe shebemarried 5 willhe shehaveanychildren 1 i foryouuntilyou yourwork a willwait willfinishb havewaited willhavefinishedc willbewaiting havefinishedd havewaited havefinished exercises 2 bytheyearof2052 they thesecretofaids a havediscoveredb willhavediscoveredc willbediscoveringd willdiscover 3 tom youdidn tcometothepartylastnight i butisuddenlyrememberedihadhomeworktodo a hadtob didn tc wasgoingtod wouldn t 4 daniel sfamily theirholidayinhuangshanthistimenextweek a areenjoyingb aretoenjoyc willenjoyd willbeenjoying 5 didyoutelljuliaabouttheresult oh iforgot i hernow a willbecallingb willcallc calld amtocall 6 ladiesandgentleman pleasefastenyourseatbelts theplane a takesoffb istakingoffc hastakenoffd tookoff 7 bythetimejanegetshome heraunt forlondontoattendameeting a willleaveb leavesc willhaveleftd left 8 hewillhavelearnedenglishforeightyearsbythetimehe fromtheunive