八年級下冊初中英語《Grammar Present perfect tense》公開課課件牛津譯林版-八年級英語課件

GrammarPresentperfecttense現(xiàn)在完成時的基本定義：

1、過去發(fā)生的動作對現(xiàn)在造成的影響。

2、過去的動作或狀態(tài)持續(xù)到現(xiàn)在并且可能繼續(xù)下去。

結構：1、肯定句：have/has+p.p(過去分詞）2、否定句：have/has+not+p.p(過去分詞）3、一般疑問句：Have/has提到句首肯定回答：Yes,主語+have/has.否定回答：No,主語+haven’t/hasn’t.規(guī)則動詞：1.一般直接加-ed:work-worked-workedvisit-visited-visited2.以e結尾的直接加dlive-lived-livedmove-moved-moved3.以輔音字母加y結尾，把”y”改為“i”后加ed.study-studied-studiedcry-cried-cried4、重讀閉音節(jié)結尾，末尾只有一個輔音字母，先雙寫該輔音字母，再加“

ed

”stop-stopped-stoppeddrop-dropped-dropped動詞的不規(guī)則變化：AAA:read-read-readcut-cut-cutABB:have/has-had-hadleave-left-leftABA:run-ran-runbecome-became-become

ABC:go-went-gonedrink-drank-drunkring-rang-rung練習：寫出以下動詞的過去式和過去分詞play-study-go-start-stop-run-carry-have-played-playedstudied-studiedwent-gonestarted-startedstopped-stoppedran-runcarried-carriedhad-had現(xiàn)在完成時長與一些時間狀語連用：1.常與just,already,before,yet,ever,never等詞連用I____already_____(finish)myhomework.havefinishedShe_______never_______(be)toGuilin.hasbeenI_____________(notdo)myworkyet.haven’t

done2.常與for，since，inthepast…years,sofar,overtheyears,recently等詞連用：.Myfather___________(teach)Englishfor10years.hastaughtInthepastfewyears,I__________(be)tomanyplaces.havebeenMyfamily___________(live)heresince

Iwasborn.havelivedalready與yet的區(qū)別:現(xiàn)在完成時中,already和yet都可以表示“已經”的意思.

already用于肯定句,放在句中或句尾.

e.g：I’vealreadybeentheretwice.

=I’vebeentheretwicealready.

yet用于否定句或疑問句中,放在句尾.

e.g：Ihaven'tfinishedreadingthebookyet.

Havethechildrencomebackhomeyet?

for與since的用法區(qū)別for+時間段.since+時間點+ago.since+時間點.since+從句.用for或since填空:___threeyears____lastyear___twohours____twoweeks____Iwasfive____1999forsinceforforsincesinceB.Mr.Wuasksthetocompletethesentencesbelowusingthepresentperfecttense.Helpthemcompletethesentences.

1.They________(finish)theirhomeworkalready.2.John_____never_____(visit)China.3.Mr.Li_________(repair)overtenbicyclessinceMonday.4.We________(notsee)eachotherforyears.5.Myparents_________(notcome)backyet.6.Ourteacher_________(teach)usalotaboutThehistoryofChina.havefinishedhasvisitedhasrepairedhasn’tseenhaven’tcomehastaughtChattime

c.MillieandSandyaretalkingaboutafilmaboutthehistoryofBeijing.Completetheirconversationwiththecorrectformsoftheverbsinbrackets.(1)_____you_____(see)anyfilmsrecently,Sandy?No,Ihaven’t.Whataboutyou?I(2)________(see)onelastSaturday.What’sitabout?ItaboutthechangesinBeijingoverthepastcentury.Fromthisfilm,I(3)__________(learn)moreaboutBeijng’spastandpresent.Oh,IthinkI(4)________(hear)aboutthefilm.Doyouplantoseeitagain?Yes,I’dliketo.Haveseensawhavelearnthave

heard練習鞏固：A.寫出下列詞過去分詞1borrow________5plan_______9say______2hope_______6cry______10grow______3make_______7send__