時(shí)態(tài)構(gòu)成及標(biāo)志詞時(shí)態(tài)構(gòu)成例句標(biāo)志詞一般現(xiàn)在時(shí)主系表：主語(yǔ)+am/is/are+其它主謂賓：主語(yǔ)+do/does+其它Iamateacher.Ileavehomeforschoolat7everymorning.always,usually,often,sometimes,seldom,everyday,onSundays,onceaweek一般過(guò)去時(shí)主系表：主語(yǔ)+was/were+其它主謂賓：主語(yǔ)+did+其它HelivedinBeijingwhenhewasyoung.yesterday,thedaybeforeyesterday,lastyear,in2012,theotherday,inthosedays,duringthenight,twodaysago,justnow一般將來(lái)時(shí)主語(yǔ)+willdo+其它主語(yǔ)+begoingtodo+其它主語(yǔ)+am/is/areabouttodo+其它主語(yǔ)+am/is/aretodo+其它Thefirsttimewe’llsendyouwithanexperiencedreporter.Iamgoingtovisitmyfriendinhospital.Nowladiesandgentleman,you’reabouttohearthemostincredibletale.Theirdaughteristogetmarriedsoon.nexttime,tomorrow,beforelong,lateron,inthefuture,thedayaftertomorrow,nextweek,soon,inthreedays,intheyear2022現(xiàn)在進(jìn)行時(shí)主語(yǔ)+am/is/aredoing+其它Itisrainingheavilynow,sowemuststayinside.I’mreadingabookthesedays.now,thesedays,look,listen過(guò)去進(jìn)行時(shí)主語(yǔ)+was/weredoing+其它WhenPaulknockedatthedoorJimwaswatchingTVinthelivingroom.atninelastnight;atthattime=then;atthistimeyesterday;whentheteachercameinwhilehewasreading現(xiàn)在完成時(shí)主語(yǔ)+have/hasdone+其它Ihavealreadyfoundmypen.=Ihavefoundmypenalready.Haveyouboughtacomputeryet?Ihavenotfinishedtheworkyet.Haveyoueverseenpandas?IhaveneverbeentoBeijing.Ihavejustdonemywork.Ihaveneverbeentherebefore.Sofarhehaslearnt200words.Jimhaslivedherefor2months.LucyhasbeeninBeijingsince3yearsago.HehasbeeninChinasincehecamehere.①already,recently,lately,yet,ever,never,once,just,before(放句末)②since+時(shí)間點(diǎn)/過(guò)去時(shí)態(tài)的句子,for+一段時(shí)間,uptill/tonow,sofar,,inthelast/pastfewyears③“This/Itis＋第幾次＋that從句”，that從句謂語(yǔ)動(dòng)詞用現(xiàn)在完成時(shí)。過(guò)去完成時(shí)主語(yǔ)+haddone+其它Hehadshutthedoorbeforethedogcameup.By,before,until,when引導(dǎo)的時(shí)間狀語(yǔ)“This/Itwas＋第幾次＋that從句”，that從句謂語(yǔ)動(dòng)詞用過(guò)去完成時(shí)?，F(xiàn)在完成進(jìn)行時(shí)主語(yǔ)+have/hasbeendoing+其它Wehavebeenstudyinginthisschoolforthreeyears.同現(xiàn)完，區(qū)別為，現(xiàn)在完成進(jìn)行時(shí)強(qiáng)調(diào)進(jìn)行、持續(xù)將來(lái)進(jìn)行時(shí)主語(yǔ)+willbedoing+其它Whatwillyoubedoingthistimetomorrow?at+具體時(shí)間+將來(lái)時(shí)間；atthis/thattime+將來(lái)時(shí)間將來(lái)完成時(shí)主語(yǔ)+willhavedone+其它Theywillhavefoundthesecretbythetimeyoucomebackhome.Perhapswewillhavefinishedourworkbeforeshearrives.Whenwegetthere,theywillprobablyhaveleft.by(thetime/theendof)＋表示將來(lái)時(shí)間的短語(yǔ)或句子；before(theendof)＋表示將來(lái)時(shí)間的短語(yǔ)或句子；when,after等＋表示將來(lái)動(dòng)作的句子過(guò)去將來(lái)時(shí)主語(yǔ)+would/shoulddo+其它主語(yǔ)+was/weregoingtodo+其它主語(yǔ)+