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1、現(xiàn)在完成時復(fù)習(xí)ReviewofthePresentPerfectTense現(xiàn)在完成時的構(gòu)成：have/has+動詞的過去分詞注：動詞過去分詞的構(gòu)成分為規(guī)則變化和不規(guī)則變化，規(guī)則變化的動詞過去分詞與過去式是一樣的，不規(guī)則變化的動詞須特殊記憶。規(guī)則動詞過去分詞的構(gòu)成1.一般在動詞后直接加-ed構(gòu)成規(guī)則2.以不發(fā)音的e結(jié)尾的動詞，直接加-d3.末尾只有一個輔音字母的重讀閉音節(jié)詞，先雙寫這個輔音字母，再加-ed4.結(jié)尾是“輔音字母+y”的動詞，先變“y”為“i”再加-ed例詞looklookedplayplayedlivelivedhopehopedstopstoppedplanplanneds
2、tudystudiedcarrycarried寫出下列動詞的過去分詞：worklikecrystaylearnusehelpfinishcookarriveworkedlikedcriedstayedlearnedusedhelpedfinishedcookedarrived不規(guī)則動詞過去分詞的構(gòu)成1.三個主要動詞is,ambearewaswerebeenhave/hashadhaddo/doesdiddone2.AAA型（三者一致）cutcutcutletletletputputputcostcostcostreadreadread3.ABA型（過去分詞與原形一致）comecameco
3、mebecomebecamebecomerunranrun4.ABB型（過去分詞與過去式一致）bringbroughtbroughtfindfoundfoundhearheardheardkeepkeptkeptmakemademade此外還有l(wèi)eave,win,tell,spend,say，meet等等。5.ABC型（三者不一致）eatateeatengivegavegivenwritewrotewrittenseesawseengetgotgottenbeginbeganbegun此外還有g(shù)o,take,know,speak,swim等等?，F(xiàn)在完成時的用法：1.表示已完成的某一動作對
4、現(xiàn)在造成的影響或結(jié)果1）標(biāo)志詞:already:yet:多用于陳述句，位于have/has后，有時位于句末。e.g.Ihavealreadyfinishedmyhomework.用于疑問句和否定句，位于句尾。e.g.Haveyoufoundyourlostbookyet?Ihaven'thadbreakfastyet.ever:never:多用于疑問句，問初次經(jīng)歷。e.g.HaveyoueverbeentoBeijing?用于否定句，位于have/has后e.g.Hehasneverarguedwithotherpeople.just:before:多用于陳述句，位于have/has后e
5、.g.Lucyhasjustwashedherclothes.可用于各句式，位于句尾。e.g.Ihavereadthisbookbefore.Hehasn'tbeenabroadbefore.HaveyouflowntoHainanbefore?2）無標(biāo)志詞的：e.g.Heisnotfeelingwellnow.Hehascaughtacold.Ihavelostthekey.Ican'tgointomyroom.2.表示從過去已經(jīng)開始，持續(xù)到現(xiàn)在的動作或狀態(tài)。標(biāo)志詞:1）for+一段時間e.g.Wehavelivedinthiscityfortenyears.2）since+過去點(diǎn)時間
6、since+一段時間+agosince+從句（從句用一般過去式）e.g.Hehasworkedheresince1990.Shehastaughtinthisschoolsincetwoyearsago.Wehaveknowneachothersincewemet.3）sofar,once/twice/threetimes,allone'slifee.g.Theyhavelearnt2000wordssofar.Tomhasseenthefilmtwice.Herfatherhasworkedinthefactoryallhislife.4）inthepast+一段時間duringthe
7、last+一段時間e.g.Theyhavebuiltmanyhighbuildingsinthepastthreeyears.Greatchangeshavetakenplaceinmyhometownduringthelasttwoyears3.have/hasbeentohave/hasgonetohave/hasbeenin曾經(jīng)去過某地到某地去了在某地呆了多長時間1.A:Where’sJim,LiLei?B:He_______
