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1、現(xiàn)在完成時(shí)學(xué)案__________________________________________________現(xiàn)在完成時(shí)導(dǎo)學(xué)案石橋子初中八年級Ourslogan:Wherethereisawill,thereisaway.(有志者,事竟成.)1、知識目標(biāo):熟記動(dòng)詞的過去分詞和現(xiàn)在完成時(shí)(一)的構(gòu)成形式。2、能力1)能用現(xiàn)在完成時(shí)描寫自己的經(jīng)歷2)能夠正確使用already,just,yet能夠區(qū)分havegoneto和havebeento【復(fù)習(xí)重點(diǎn)】一、現(xiàn)在完成時(shí)謂語動(dòng)詞的構(gòu)成:二、能夠?qū)ΜF(xiàn)在完成時(shí)進(jìn)行句式變換【復(fù)習(xí)難點(diǎn)】havebe
2、ento與havegoneto的區(qū)別【課前延伸】做一做復(fù)習(xí)動(dòng)詞的過去式和過去分詞,寫出下列單詞的過去式和過去分詞:1.want2.visit3.enter4.live5.love6.hope7.study8.marry9.carry10.stop11.shop12.have13.send14.be15.go16.write17.make18.hear19.do20.read動(dòng)詞過去分詞的構(gòu)成:?一,規(guī)則變化,在末尾加ed,1,直接在末尾加ed,如visit—visited2,以e結(jié)尾的,加d,如live—lived3,以輔音字母加y結(jié)尾的
3、,把y變i,加ed,如study—studiedcarry—carried4,以重讀閉音節(jié)結(jié)尾,并且末尾只有一個(gè)輔音字母的,雙寫輔音字母,再加ed如stop—stoppeddrop--dropped二,不規(guī)則變化的。如get—gotmake—madewrite—writtenbe—beensee—seenhear—heard等試一試復(fù)習(xí)現(xiàn)在完成時(shí)的構(gòu)成?,F(xiàn)在完成時(shí):1.構(gòu)成:肯定句:助動(dòng)詞或+否定句:助動(dòng)詞have/has后加not,可縮寫haven’t/hasn’t一般疑問句:助動(dòng)詞have/has提前Ibavefinished(fin
4、ish)homeworkalready.____________________________________________________________________________________________________Hasheseen(see)thefilmbefore?Wehaven’tbeentotheGreatWall.2.用法:(1)表示過去發(fā)生或已完成的動(dòng)作對現(xiàn)在造成的或。常連用的時(shí)間狀語有:,,,,,等。(2)你能說出already和yet的用法有什么不同嗎?a如果肯定句中含有already,在變成否定
5、句或疑問句時(shí),要把句中的already轉(zhuǎn)換成______.b.already多用于現(xiàn)在完成時(shí)肯定句的句中或______;yet多用于現(xiàn)在完成時(shí)否定句或疑問句_______??聪旅鎯蓚€(gè)題,注意:句中already和yet不同用法1.Ihaveseenthefilmalready.(變?yōu)榉穸ň?Ihaven’tseenthefilmyet.2.Ihavealreadyfinishedmyhomework.(變?yōu)橐话阋蓡柧洌〩aveyoufinishedyourhomeworkyet?【課內(nèi)探究】【小組合作求共贏】合作探究一學(xué)習(xí)現(xiàn)在完成時(shí)的第一
6、種用法,做下列練習(xí)題一、用動(dòng)詞的適當(dāng)形式填空:1.Scientists___________(discover)manygalaxiesintheuniversealready.2.He__________________(notfinish)hishomeworkyet.3.We_________never_________(see)thisfilmbefore.4.Tony________just_________(make)amodelofthespacestation.5.Sally________________(notvisi
7、t)Chinabefore.6._______thespacecraft__________(reach)Marsyet?課堂鞏固我能行鞏固本課內(nèi)容二,句型轉(zhuǎn)換1.I’vealreadymadeamodelofthespacecraft.(改為否定句)____________________________________________________________________________________________________I_____________amodelofthespacecraft________.1.
8、They’vebeentoMarsalready.(改為一般疑問句)_______they______toMars_______?2.Ithastakenseveralmonthstogett