初中八年級英語課件八年級下Unit8一般過去時與現(xiàn)在完成時之比

課題：一般過去時與現(xiàn)在完成時之比TheSimplePresentTense

(一般過去時)

ThePresentPerfectTense(現(xiàn)在完成時)

科目：英語年級：八年級阜康市第三中學(xué)李榮潘荔

Iworkinthiscity.Iworkedinthiscitylastyear.TheyliveinShanghai.TheylivedinShanghailastyear.動詞過去式的寫法：1、一般情況，在動詞末尾加ed2、動詞以e（不發(fā)音）結(jié)尾的，直接在詞尾加d3、IstudyinBeijing.Istudied

inBeijinglastyear.study,copycry,fly...4、Shestops.Shestopped.輔音加y結(jié)尾，變y為i加ed重讀閉音節(jié)結(jié)尾，雙寫詞尾字母加ed5、特殊記憶

Igotoschoolbybikeeveryday.Iwenttoschoolbybikeyesterday.

例如：am/is—wascome--camegrowgrewmeanmeanttelltoldtaketookflyflewthinkthoughtgetgotringrangbecomebecamerunranfallfellhearheardbuyboughtmakemadeeatatecutcutgowentleaveleftsleepsleptshopshoppedHaveatry現(xiàn)在完成時結(jié)構(gòu)e.g.I/Hehave/has(already)workedherefor20years.

-否:I/Hehaven't/hasn'tworkedherefor20years(yet).

-疑:Have/Has

you/he

workedherefor20years(yet)?肯:Yes,I/hehave/has.

否:No,I/hehaven't/hasn't.

1.肯定句:主+助動詞have(has)+already＋V.過分2.否定句：主+haven’t（hasn’t）＋V.過分(yet)?3.疑問句：Have/Has＋主語＋V.過去分詞(yet)?

肯定回答：Yes,…h(huán)ave(has).

否定回答：No,…h(huán)aven’t(hasn’t).連用時間狀語：already,yet,ever,never,just,before,severaltimes等?，F(xiàn)在完成時的基本句式：觀察.Isawthisfilmyesterday.只說明動作發(fā)生在過去。Ihaveseenthisfilm.強調(diào)對現(xiàn)在的影響，電影的內(nèi)容已經(jīng)知道了。.Shereturned

yesterday.她是昨天回來的。ShehasreturnedfromParis.她已從巴黎回來了。

.

Iwenttherelastmonth.是上個月去的。IhavejustbeentoLondon.我剛?cè)ミ^倫敦。注意：句子中如有一般過去時的時間副詞（如yesterday,lastweek,in1960）時，不能使用現(xiàn)在完成時，要用過去時。例如：（）Tomhaswrittenalettertohisparentslastnight.（）Tomwrotealettertohisparentslastnight.錯對1.How______(be)Jim’sweekend?It

(benot)bad.2.A:Haveyou______(see)therobotsatthesciencemuseum?B:Yes,I______(go)therelastweekend.3.I______(see)himinthelibrarytwodaysago.I.用括號中所給單詞的適當形式填空。seenwentPracticewaswasnot

saw4.I________just___________(finish)myhomework.5.SofarI_______________(make)quiteafewfriendshere.6.Howlong________you_________(stay)here?Fortwoweeks.7.I__________(nothear)fromherthesedays.haven’theard

havefinishedhavemadehavestayed一般過去時現(xiàn)在完成時同都和過去發(fā)生的事情有關(guān)異

只表示過去的事實，不表示和現(xiàn)在的關(guān)系。

強調(diào)這一動作與現(xiàn)在的關(guān)系，如對現(xiàn)在產(chǎn)生的結(jié)果、影響等。與時間副詞just，already,before,yet,never,ever，severaltime