●GrammarandusageStep1:GeneralintroductionandexplanationtopastandfuturetensePasttenseI.Thesimplepasttense:Itisoftenusedtotalkaboutsomethingthathappenedinthepastandisnowfinished.e.g.Sheworkedlateintonightyesterday.II.Thepastcontinuoustense:Thetenseistotalkaboutsomethingthathappenedinthepastandcontinuedforsometime.e.g.Sheknewthatasafamousdancershewasmakingherparentsproudinthoseyears.III.Thepastperfecttense:1.Thepastperfecttenseisoftenusedwiththesimplepasttense.Ifoneactionhappensbeforeanotherinthepast,thepastperfecttenseisused.e.g.Uponenteringthetomb,Carter’sluckypetbird,whichhadledhimtotheplace,waseatenbyasnake.2.Thepastperfecttenseissometimesusedinreportedspeeche.g.“Weemptiedthetombofeverythingitcontained,”saidCarter.Cartersaidthattheyhademptiedthetombofeverythingitcontained.3.Theuseofthepastperfecttensesimplyindicatesthatanactioncomesbeforeanotherpastaction,usedwithtimeexpressionssuchaswhen,after,before,assoonas,until,by,forandalreadye.g.IhaddonemyhomeworkthismorningbeforeIwenttothemuseum.FuturetenseFuturetenseI.Theformandusageofthesimplefuturetense：1.will/shalldo:表示将来发生的动作或出现的状态,shall仅与第一人称连用2.begoingtodo:表示主语计划打算的行动或看来就要发生的事情3.bedoing:表示计划或安排好的动作（go,come,leave,begin等动词）4.betodo:表示客观上计划或安排好的动作5.beabouttodo:表示即将发生的动作,一般不带时间副词或短语6.do:表示与安排，计划或时刻表有关的动作；或用于if,when等状语从句中代替willdo.II.Theusageofthefuturecontinuoustense:1.Talkaboutsomethingthatwillbeinprogressatacertaintimeoroveraperiodoftimeinthefuture.(讨论将来某个时间点或时间段正在进行的动作)e.g.TobywillnotbeinLondonnextTuesday.HewillbeclimbingintheHimalayas.TobywillbeclimbingintheHimalayasallnextweek.1.Expressfuturewithoutintention.Whenitisusedinthisway,wewanttoindicatethatsomethingwillhappennaturally.Itdoesn’timplythatthespeakerhasarrangedtheaction.（表示不包含说话者主观意愿的纯粹将来。使用这种方式，我们想表达某件事会很自然地发生，说话者并不参与安排或计划。）比较下列各句：e.g.Tomwon’tcutthegrass.（Tomrefusestocutthegrass.）Tomwon’tbecuttingthegrass.（Thesentenceisonlyastatementoffact,givingnoinformationaboutTom’sintention.PerhapsTomisaway,orill,orwillbedoingsomeotherjob.）3.Makepoliteenquiriesaboutotherpeople’sfutureplans.(委婉地询问对方的未来计划，比用willdo听起来更有礼貌。)e.g.Whatwillyoubedoingtomorrow?Willyoubeworkingallday?III.Theusageofthefutureinthepastistotalkaboutaneventwhichwasinthefutureatthetimewhenitwasdiscussed.Step2:Practice(语法练习)：I.用所给动词的适当的过去时或将来时的形式填充。1.Let'skeeptothepointorwe______never_______(reach)anydecisions.2.Mymindwasn'tonwhathewassaying,soI'mafraidI______(miss)halfofit.3.Idon’tthinkJimsawme;he_____just______(start)intospace.4.I____(ask)younottomovemydictionary——nowIcan'tfindit.5.SalesofCDshavegreatlyincreasedsincetheearly1990s,whenpeople______(begin)toenjoytheadvantagesofthisnewtechnology.6.--GeorgeandLucygotmarriedlastweek.Didyougototheirwedding?--No,I__________________(invite).Didtheyhaveabigwedding?7.Shirley_____(write)abookaboutChinalastyearbutIdon’tknowwhethershehasfinishedit.8.JohnandIhavebeenfriendsforeightyears.WefirstgottoknoweachotherataChristmasparty.Butwe___________(see)eachotheracoupleoftimesbeforethat.9.Hiswife___________(hope)tocatchthefirsttrainbutshewastoolate.10.I___________(catch)intheheavyrainonthewaytothecinema.11.If...
