Unit语法-时态VIP专享VIP免费

Unit1Grammar(一)一般现在时构成主语+does/do/be(amisare)+其它用法：1.表示经常习惯反复发生的动作，存在的状态。多与alwaysofteneveryday等连用2.客观事实普遍真理名言警句。在直接引语变为间接引语时，、时态需要做相应的调整(现在时需改为过去时态；过去时态改为完成时；过去完成时则保留原来的时态)但直接引语是客观真理名言警句时，时态不变."Theearthmovesaroundthesunandthemoonmovesaroundtheearth,theteachertoldme.→Theteachertoldmetheearthmovesaroundthesunandthemoonmovesaroundtheearth。Shesaid."Wehopeso."→Shesaidtheyhopedso.3.主句是一般将来时，时间条件和让步状语从句中用一般现在时表示一般将来时（主将从现）Ifitrainstomorrow,Iwillstayathome.4.表示按时刻表上规定好要发生的动作。常见的动词有gocomeleavestartbegintakeoff等，多用于车船的出发到达，官方规定的不容易更改的时间表Thetrainleavesatfourthirtypm.(二)现在进行时构成主语+am/is/are+doing+其它用法：1.表示此时此刻正在进行的动作IamwatchingTVnow.2.表示现阶段正在发生的动作，此时此刻动作不一定正在进行Heiswritinganovelthismonth.3.表示按计划安排近期发生的动作(表示将来)，常见的动词gocomeleavestartbegintakeoffHeisleavingforShanghaithedayaftertomorrow.4.与always.constantly.forever等连用，表示赞赏.厌恶.抱怨等语气.Heisalwayshelpingothers.Sheisconstantlychangingheridea.(三)一般将来时构成主语+will/shall+do+其它其他用法1.begoingto+doa打算计划做某事b表示根据某种客观迹象表明会发生某事ThisisjustwhatIamgoingtosay.Lookatthedarkcloudsinthesky.It’sgoingtorain.2.will+doa打算做某事，表示主观意愿b客观的将来c临时的决定Iwillsendherabunchofflowers.Fishwilldiewithoutwater.3用“beto+动词原形”表示。主要表示按计划或安排即将要发生的动作；有时也表示命令、禁止或可能性HeistoleaveforBeijingtomorrow.他决定明天去北京。4beaboutto＋动词原形，表示即将发生的动作，可以和when连用Iwasabouttogoswimmingwhenmyguideshoutedatmeandtoldmenottodoso.注：该结构通常不与具体的时间状语连用：5祈使句+and/or+主语+will+doHurryup,oryouwillbelateforclass.现在进行和一般现在表示将来的区别：Themuseumopensattentomorrow.ThetrainleavesatsixtomorrowmorningIknowyouarearrivingnextSunday.Theplanetakesoffat10:10.Thatis,it’sleavingintenminutes.总结___________________________________练习题1Thehousebelongstotomybrotherbuthe__________(notlive)hereanymore.2Everyyearmanyforeigners_______(come)toChinatolearnChinese.3ProfessorSmith,alongwithhisstudents,______________(work)ontheworkdayandnight.4Whenlwasachild,IhopedtoliveinthecityI________(think)Iwouldbehappythere.5Yangshuo_________(be)reallybeautiful.6“Whatdoyouwanttobe?”askedMrs.Crawford.“Oh,I______(be)president.”saidtheboy,withasmile.7---DoyouthinkMomandDad________(be)late?----No,SwissAirisusuallyontime.8---Oh,dear.Iforgottheairtickets.---You____________(alwaysleave)something.9Remembertosendmeaphotoofusnexttimeyou______(write)tome.10I______(play)ping-pongquitewell,butIhaven’thadtimetoplaysincetheNewYear.11Theywon’tbuynewclothesbecausethey______(save)moneytobuyanewhouse.12Thetrafficinourcityisalreadygoodandit______(get)evenbetter.13Don’tbothertolookformydictionary---it______(turnup)someday.14Theplane______(leave)at7:00pm,soIhavetobeattheairportby6:40atthelatest.15IusedtodrinkalotofteabutthesedaysI______(prefer)coffee.16---Lookattheblackclouds.It______(rain)soon.---Sure.Ifonlywehadn’tcomeout.17Whenhewasalive,theoldscientistusedtosaythatknowledge______(come)frompracticeandhegainedhisexperiencebydoingalotofpracticalwork.18______(leave)itwithmeandI’llseewhatIcando.19Iti...