时态公开课a.ppt

时态 动词的五种基本形式 动词时态 4 特殊变化 have has 动词 ing形式的构成 1 直接加ing 如 eat eating play playing go going2 去e加ing 如 write writing take taking make making3 双写为字母加ing run running swim swimming shop shoppingget getting sit sitting kid kidding4 改ie为y加ing lie lying tie tying die dying 动词过去式过去分词变化规则 1 直接加ed 如 play played played2 直接加d 如 live lived lived3 双写尾字母加ed 如 stop stopped stopped plan planned planned prefer preferred preferred4 改y为i加ed try tried study studied cry cried carry carried5 特殊变化 如 go went gone见 不规则动词表 初中阶段8种时态 一般现在时一般过去时一般将来时现在进行时过去进行时现在完成时过去完成时过去将来时 一般现在时 表示状态 am is are Iamtiredtoday Heisn tbusyatthemoment Aretheyathome 2 表示经常反复发生的动作 do does Theyspendtheirholidaysinthesouthonceayear Idon tknow DoesMaryoftengohome No shedoesn t 常搭配表频率的时间状语 alwaysusuallyoftensometimeshardlyeverneverfromtimetotimeattimesnowandtheneverydayonceaweek3timesayear 3 表示客观真理 谚语 格言 Thesunrisesintheeastandsetsinthewest 4 用与时间或条件状语从句中 代替一般将来时 Iwillbehappyifyouarehere Wewillgowhenhecomes 一般过去时1 表示过去的状态或特征 Itwasnotrainylastweek Theyweretaxidriversyearsago 2 表示过去某一具体时间发生过的动作 Ireviewedmylessonslastnight Ididn tknowhewasyourfather Didyougotoschoolyesterday 3 表示过去经常反复发生的动作 Peteroftenplayedbasketballwhenhewasincollege 现在进行时主语 be am is are doing表示说话瞬间正在发生或进行的动作 标志词 now rightnow atthemoment at6 00 look listen等 1 Iamwaitingformymothernow 2 Look Jimisn tdoinghishomeworknow 3 Whataretheydoing Listen theyaresinging 过去进行时主语 be was were doing一 表示过去的某个时刻正在发生或进行的动作 1 Hewasdoingshoppingatthistimeyesterday 2 Wewerehavingadiscussionatthattime 过去进行时二 表示过去某一阶段正在进行的动作 1 Peterwasplayingchessthewholeafternoonyesterday 2 Wewerehavingameetingfromninetoelevenyesterday 三 用于when while as等引导的表示过去的时间状语从句中 AsIwaswatchingTV thetelephonerang MotherwascookingwhenIcamehome Iwasshoppingwhileitwassnowing 一般将来时 1 概念 表示将来某个时间要发生的动作或存在的状态 标志语 tomorrow nextweek month in tomorrowmorning evening 一 主语 will shall 动原1 Iwill shall gotoBeijingtomorrow 2 Theywon thaveapartyonSundayevening 3 Willitbesunnysoon No itwon t Whenwillthemoviebegin 一般将来时 2 主语 begoingto 动原1 Iamgoingtohaveabirthdaynextweek 2 Itisn tgoingtorainlater 3 IsTomgoingtovisithisparents 4 Whatareyougoingtobeinthefuture Iamgoingtobeanurse 一般将来时 3 现在进行时表将来 主语 be am is are doing1 IamgoingtoYichangtomorrow 2 Summervacationiscoming 3 Aretheygoingtomountainsthisweekend 4 Whatareyoudoingforvacation Iamgoingtothebeach 过去将来时 概念 表示过去某一时间将要发生的动作或存在的状态 结构 主语 would 动原主语 be was were goingto 动原常用于主句是过去时态的宾语从句中1 BettysaidshewouldvisitherunclenextSaturday 2 Shewasnotsurewhenthebuswasgoingtoleft 3 Theytoldmethattheyweregoingtogofishinglater 现在完成时 结构 主语 have has done用法一 表示过去的动作或状态对现在产生的影响和结果 常与already just ever never before yet等联用 Shehasalreadyreadthebook 用法二 表示从过去一直持续到现在的动作或状态 特点 用可延续性动词 与一段时间联用 Mygrandpahasbeendeadfor3years 用法三 去过某地 have hasbeento 地点去了某地 have hasgoneto 地点1 IhavebeentoJapan 已回 2 Theteacherhasgonetoameeting 不在此处 用法四 现在完成进行时表示从过去到现在一直在做某事have hasbeendoingsth常与一段时间联用 Fatherhasbeenworkingsince2hoursago 现在完成时 PresentPerfect改错 Hehaslefthomeforovertwoweeks Themeetinghasendedforhalfanhour Katehasboughtthisblouseforthreedays Theoldmanhasdiedforafewyears beenawayfrom 过去完成时 概念 表示在过去某一时间或动作之前已经发生或完成的动作 即 过去的过去 构成 主语 had done常用于宾语从句和时间状语从句中 如 1 Hetoldmethathehadtakenashower 2 ThebellhadgoneoffbythetimeIgottoschool Exercise Water freeze atthetemperature0 Thebell ring whenyouwereout Adig lie onthegroundwhenitrained I visit youifI free tomorrow myson finish hishomeworkyesterday Oh yes look he try hisbesttostudynow 6 thehat fit mewell 7 Whathashappenedtothefish Mary Mum thecat eat thefish Justnowthecat jump ontothetableand eat itup 8 Sam live inthesmalltownbeforeshemovedhere 9 Itisagessince