8B-Unit-1-现在完成时的时间副词

现在完成时的时间副词1精选课件ppt★一、since短语或从句表示过去的动作延续至今，since之后的时间为一点。

Mr.Smithhasworkedheresince1984.1984年以来，史密斯先生一直在这工作。He’slearnedabout5,000Englishwordssincehewenttocollege.他上大学以来大约学了五千个英语单词。2精选课件ppt二、★

for短语表示动作延续多长时间，for的宾语为时间段。

Wehaveknowneachotherfortwentyyears.

我们认识有二十年了。

Ihaven’tseenherforalongtime.

我好久没有见到她了。3精选课件ppt三、★

just,recently是完成时的时间状语，justnow有amomentago之意，是一般过去时的时间状语。Thetrainhasjustarrived.火车刚到。DidyouseeJoanjustnow?你刚才看到琼了吗？Haveyouheardfromyourfamilylately/recently?你最近收到家人的来信了吗？4精选课件ppt四、★

ever和never也是现在完成时常见的时间状语。前者意思是“曾经”，多见于疑问句或否定句中；后者意思是“从来没有”，表示全部否定。“Haveyoueverseenthefilm?”“No.Ihaveneverseenit.”“你曾经看过这部影片吗？”“没有，从来没看过。”Nobodyinourclasshaseverbeenthere.我们班没有人去过那。5精选课件ppt五、★

already和yet常见于现在完成时中，有“已经”之意。前者一般用在肯定句中，后者用在疑问句中。yet在否定句中有“还”之意。“Hasthebusleftyet”?“Yes.Ithasalreadyleft.”(“No.Ithasn’tleftyet.)“汽车开走了吗？”“是的，已经开走了。”“不，还没有开走。”6精选课件ppt六、★“already”用于现在完成时的肯定句中,“yet”用于现在完成时的否定句和疑问句中.

用“already”“yet”填空。

Hehas()visitedmany

placesinChina.

注意"already"在句中的两种位置.

Thetrainhasn‘tarrived（）.

火车（到现在）还没有到。

Hasshearrived（）?

她已经到了吗？Hasn‘thecome（）?她还没来吗？alreadyyet

yet

yet7精选课件pptMakingsentencesMr.Wuasksthestudentstocompletethesentencesbelowusingthepresentperfecttense.Helpthemcompletethesentences.They___________(go)tothecinemaalready.MrAndMrs.Li_________________(notcome)backyet.John___________(be)totheUSAafewtimes.We_______________(notsee)thatfilmyetI_______________(nottalk)tomycousinsincelastFriday.You_________________(notvisit)meforalongtime.havegonehavenotcomehasbeenhavenotseenhavenottalkedhavenotvisited8精选课件ppt现在完成时和一般过去时的区别Haveyouseenthefilm?Yes,I_____itlastweekend.现在完成时强调的是现在一般过去式强调的是过去，常和表示过去的时间连用。saw9精选课件ppt现在完成时和一般过去时He____________(work)inourschoolforoneyear.He______(come)toourschoollastyear/in2002.They_______________(cook)thesupperalready.They___________(cook)thesupperhalfanhourago.hasworkedcamehavecookedcooked10精选课件ppt当在肯定陈述句中含有already或just时，在转换成否定句或疑问句时，要把句中的already或just去掉，在句末加上yet.Ihaven’tseenthefilmyet.●

Ihavedonemyhomeworkalready.Ihaven’tdonemyhomeworkyet.●

Motherhasjust

cleanedthehouse.Motherhasn’tcleanedthehouseyet.●

Ihaveseenthefilmalready.11精选课件ppt()1.Ihavefinishedmyhomework____.Haveyoufinishedyourhomework____?A.yet,yetB.yet,alreadyC.already,yetD.already,already单项选择:12精选课件ppt()2.Ihaven’tseenKate____4months.A.AlreadyB.sinceC.forD.yet()3.Hehas____seenthefilmHarryPotter.Soheknowsnothingaboutit.A.alreadyB.everC.neverD.yet

13精选课件ppt()4.Shehasbeenillinbed____twodaysago.A.sinceB.inC.duringD.for()5.—Haveyouseenhim____?—No,Ihaven’t.A.alreadyB.neverC.everD.recently14精选课件ppt()6.Ihave____watchedawonderfulfilm.It’sreallyinteresting.A.yetB.justC.justnowD.never15精选课件ppt()7.Mike____thebookshop.Ihavetowaitforhim.A.wenttoB.wasinC.hasbeentoD.hasgoneto16精选课件ppt()8.—Oh,MrsKing,yourdresslooksverynice.Isitnew?—No,I___itsincetwoyearsago.A.hadB.boughtC.havehadD.havebought17精选课件ppt()9.—

___you__aticketforthefootballmatch?

—

Notyet.A.Is,boughtB.Are,boughtC.Has,boughtD.Have,bought18精选课件ppt()10.—Whatanicedog!Howlonghaveyouhadit?—__twoyears.A.ForB.SinceC.InD.Before()11.Greatchanges____inChinasince1978.A.washappenedB.havehappenedC.havebeenhappened

D.happened19精选课件ppt()12.Tom______alotoffriendssincehecametoChinalastyear.A.madeB.makesC.ismakingD.hasmade()13.“TheWorldWithoutThieves”isaverymovingfilm.I___ittwicealready.A.willseeB.sawC.seeD.haveseen20精选课件ppt()14.They___sincethefactoryopened.A.haveworkedthereB.haveworkedhereC.workedthereD.workedhere()15.—Lucy,__you___yourticket?—Notyet.A.did,findB.have,foundC.has,foundD.do,find21精选课件ppt()16.—WhatareyougoingtodothisSaturday?—I____yet.A.haven’tdecidedB.won’tdecideC.amnotdecidedD.didn’tdecide22精选课件ppt1.He______________(notfinish)thehomeworkyet.Hewilltrytofinishitquickly.2.Myfamily________(live)inNanjingsince1996.3._____you______(know)himsincethen?Morepracticehasn’tfinishedhaslivedHaveknown23精选课件ppt4.They_____already_______