現(xiàn)在完成時(shí)態(tài)講解及練習(xí)

1、18現(xiàn)在完成時(shí)態(tài)講解及練習(xí)現(xiàn)在完成時(shí)態(tài)講解及練習(xí)一、現(xiàn)在完成時(shí)的構(gòu)成一、現(xiàn)在完成時(shí)的構(gòu)成肯定句：主語主語havehasdone(過去分詞過去分詞)其它其它HehaslivedinShenzhenf4years.一般疑問句：HaveHas主語主語done(過去分詞過去分詞)其它其它HashelivedinShenzhenf4years否定句:主語主語havehasnotdone(過去分詞過去分詞)其它其它Hehasnotfinishedh

2、ishomewk.過去分詞的構(gòu)成方法如下:1.一般情況下，直接在動(dòng)詞原形后面加一般情況下，直接在動(dòng)詞原形后面加–ed.wkwkedansweransweredobeyobeyedwantwanted2.以不發(fā)音的以不發(fā)音的e結(jié)尾的動(dòng)詞只加結(jié)尾的動(dòng)詞只加–d.Movemovedhopehopeddividedivided3.字尾是輔音字尾是輔音y的動(dòng)詞。則將的動(dòng)詞。則將y改i加ed.studystudiedtidytidiedsatisf

3、ysatisfied4.以重讀閉音節(jié)結(jié)尾的詞，這些詞的末尾只有一個(gè)輔音字母時(shí)，雙寫這個(gè)輔音字母，再加以重讀閉音節(jié)結(jié)尾的詞，這些詞的末尾只有一個(gè)輔音字母時(shí)，雙寫這個(gè)輔音字母，再加–ed.stopstoppedregretregrettedped不規(guī)則動(dòng)詞過去式與過去分詞分類記憶表不規(guī)則動(dòng)詞過去式與過去分詞分類記憶表一、一、AAA.（原形，過去式和過去分詞一致）（原形，過去式和過去分詞一致）1.花費(fèi)costcostcost2.割cutcut

4、cut3.傷害hurthurthurt4.讓letletlet5.放putputput6.朗讀readreadread7.設(shè)置setsetset8.打擊，碰撞hithithit9.關(guān)上門窗shutshutshut10.讓letletlet二、二、ABB（過去式和過去分詞一致）（過去式和過去分詞一致）1)過去式、過去分詞含有ought1.帶來bringbroughtbrought2.買buyboughtbought3.打架fightfou

5、ghtfought4.想thinkthoughtthought5.尋找、探究seeksoughtsought2)過去式、過去分詞含有aught5.抓住catchcaughtcaught6.教teachtaughttaught3)過去式、過去分詞t替換原形d7.建筑buildbuiltbuilt8.借出lendlentlent9.花費(fèi)spendspentspent10.派遣sendsentsent4)過去式、過去分詞在原形詞尾加t或d11

6、.學(xué)會(huì)learnlearntedlearnted12.意思meanmeantmeant13.燃燒burnburntedburnted13.做夢(mèng)dreamdreamteddreamted13.處理dealdealtdealt14.聽hearheardheard5）過去式、過去分詞改為ept15.保持keepkeptkept16.睡覺sleepsleptslept17.掃sweepsweptswept6）過去式、過去分詞改為elt18.感覺

7、feelfeltfel19.嗅smellsmeltedsmelted20.拼寫spellspeltedspelted7)過去式、過去分詞改為aid20.孵蛋l(fā)aylaidlaid21.說saysaidsaid38Theyhavejustleft.ever(曾經(jīng))HaveyoueverbeentoBeijingnever(從不)Ihaveneverseenhim.befe(以前)Haveyouseenthefilmbefesince(自從

8、…以來)I’vewkedintheschoolsince1999.f(長(zhǎng)達(dá))He’slivedinShenzhenf6years.inthepastseveraldaysweeksyears(在過去的…)recently(最近)Ihavenotwrittentomyparentsrecently.sofar(到目前為止)Sofarshehaslearned5Englishsongs.uptonow(到目前為止)thismningmont

9、hyear(今天早上這個(gè)月今年)三、現(xiàn)在完成時(shí)的用法三、現(xiàn)在完成時(shí)的用法1)1)現(xiàn)在完成時(shí)表示過去發(fā)生的動(dòng)作現(xiàn)在完成時(shí)表示過去發(fā)生的動(dòng)作并對(duì)現(xiàn)在有影響。常與并對(duì)現(xiàn)在有影響。常與already(already(已經(jīng)已經(jīng)))yet(yet(已經(jīng)已經(jīng)))just(just(剛剛剛剛)ever()ever(曾經(jīng)曾經(jīng))等詞連用等詞連用.AlreadyAlready，yetyet的用法的用法already:already:常用于肯定句中常用于肯定句

10、中.yet:yet:常用于否定句常用于否定句疑問句尾疑問句尾.Someonehasbrokenthewindow.(窗戶現(xiàn)在是壞的)Ihavealreadylostthekey.(我現(xiàn)在沒有鑰匙)Ihaven’treadthatbookyet.(不了解書的內(nèi)容)Ihavejustcleanedmyhs.(手是干凈的)3)現(xiàn)在完成時(shí)表示從過去一直持續(xù)到現(xiàn)在的動(dòng)作或狀態(tài)，常與fsince引導(dǎo)的時(shí)間短語或從句連用.sincef的用法的用法:s

11、ince:(自…以來)1)since時(shí)間點(diǎn)時(shí)間點(diǎn)Hehasstayedheresince5o’clock.2)since時(shí)間段時(shí)間段agoHehasstayedheresince5hoursago.3)since從句從句f:(長(zhǎng)達(dá)）f時(shí)間段時(shí)間段Hehaskeptthebookf2weeks.ShehaslearnedEnglishf5years.HehaslivedinBeijingsincehewasbn.Haveyoustayed