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1、現(xiàn)在完成時(shí)1.概念：表示過去發(fā)生的某一動(dòng)作對現(xiàn)在造成的結(jié)果或影響；也可表示某一動(dòng)作過去已經(jīng)開始，一直持續(xù)到現(xiàn)在。如：Hedidn’tgotothemoviebecausehehasseenit.Theyhavelivedherefortenyears.2.構(gòu)成：have/hasdone否定形式：have/hasnotdone疑問句：把have/has提前Ihavefinishedmyhomework.Ihaven’tfinishedmyhomework.Haveyoufinishedyourhomework?---Yes,Ihave./No,Iha
2、ven’t3.用法：現(xiàn)在完成時(shí)通常和以下時(shí)間狀語連用：already,never,ever,just,before,yet,inthelast/pastfewyears,since+點(diǎn)時(shí)間，for+段時(shí)間。如：Ihaveneverheardofitbefore.Theyhavejustfinishedtheproject.Greatchangeshavetakenplaceinourcityrecently.1.already和yet①already“已經(jīng)”，一般用于肯定句，與完成時(shí)連用。如：Ihavealreadyfedthecat.②否定句和疑
3、問句用already表示驚訝。如：Hashegonetobedalready?③yet“已經(jīng)，還”，一般用于否定句和疑問句，與完成時(shí)連用。如：Haveyoupackedthecamerayet?IhavenotyetbeentotheGreatWall.2.since和forsince+點(diǎn)時(shí)間；for+段時(shí)間，謂語動(dòng)詞必須是延續(xù)性動(dòng)詞。Shehasstudiedinthisschoolsince2012.Shehasstudiedinthisschoolsincetwoyearsago.Shehasstudiedinthisschoolfortwo
4、years.翻譯：我們已經(jīng)等你一個(gè)小時(shí)了。________________________________________________________________________________________1.非延續(xù)性動(dòng)詞與延續(xù)性動(dòng)詞之間的轉(zhuǎn)化。當(dāng)現(xiàn)在完成時(shí)與段時(shí)間連用時(shí)，謂語動(dòng)詞必須是延續(xù)性動(dòng)詞，非延續(xù)性動(dòng)詞必須轉(zhuǎn)化為延續(xù)性動(dòng)詞。如：Themeetinghasstartedforhalfanhour.Themeetinghasbeenonforhalfanhour.start---beonfinish---beoverborrow--
5、-keepgo/leave---beawaycome---beinjoin---beinbuy---havedie---bedeadmarry---bemarriedreturn---bebackfallasleep---beasleep1.OurEnglishteacherisverynice.We____friendssincethreeyearsago.A.wereB.becameC.havebeenD.havemade2.He____hishometownfortwentyyears.Hereallymissedit.A.hasbeenaw
6、ayfromB.leftC.hasleftD.isawayfrom3.Jack____theMP4fortwoyears.A.boughtB.haveboughtC.hashadD.hasbought注意：在否定句中，非延續(xù)性動(dòng)詞可以和段時(shí)間連用。如：Wehaven’tmetformanyyears.1.havegoneto、havebeento和havebeenin①havegoneto“去某地了”，還未回來，可能在路上，也可能在某地。如：Myfatherisn’tathome.Hehasgonetowork.②havebeento“去過某地”，
7、強(qiáng)調(diào)曾經(jīng)到過，現(xiàn)在已不在某地。如：Ihavebeentothezootwice.③havebeenin“來到某地”，通常和段時(shí)間連用。如：Theyhavebeeninthecityforthreedays.1.--I’dlikeyoutotellmesomethingaboutthemuseum.---Sorry,butneitherJacknorI______there.A.havebeenB.hadbeenC.havegoneD.hasgone2.Whyareyouworried?---I’mexpectingacallfrommydaught
8、er.She_____NewYorkforthreedays.A.hasgonetoB.hasbeentoC.hasbee
