【文档说明】《Unit 8 Have you read Treasure Island yet Section A Grammar focus 4a-4c》PPT课件1-八年级下册新目标英语【人教版】.ppt，共(20)页，648.500 KB，由小喜鸽上传

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TolearnthePresentperfecttensewithalreadyandyetIhavealreadyopenedthedoor?IhavealreadyhadlunchHaveyouhaddinneryet?Shehasn’tha

ddinneryet.Yes,Ihave.No,Ihaven’t.现在完成时Presentperfect定义：表示过去发生或已经完成的某一动作对现在造成的影响或结果。（动作发生在过去，对现在造成影响）现在完成时的构成：肯定句:主语

+have/has+过去分词+其他否定句:主语+haven’t/hasn’t+过去分词+其他一般Have/Has+主语+过去分词+疑问句：…？肯定答语:Yes,主语+have/has.否定答语:No,主语+haven’t/hasn’t.动词过去分词的变化形式大部分与动词过去式形式相同，但是

不规则动词的变化形式没有规律，需要记忆，比如：see-saw-seen;be-was,were-beeneat-ate-eaten;break-broke-brokengo-went-gone;take-took-takensend-se

nt-sent;find-found-foundmake-made-made;have-had-had你规我也规，你不规，我也不规过去式过去分词←already已经，常用于肯定句中。一般置于助动词have/has之后，过去分词之前，yet，在现在完成时句型中常置于句末

。1)已经，常用在疑问句中。2)还(没），尚未，常用于否定句。现在完成时与already，yet连用1.I_______readit___.2.____you____LittleWomen___?3.I’ve______readit.Fillintheb

lanks.havenotyetHavereadyetalreadygoReady?4.____Tina_____TreasureIsland?5.Steve,_____you__________whichbooktowr

iteaboutforEnglishclass?6.I’ve_______________readingit!7._____youatleast____thebackofthebooktoseewhatit’sabout?Hasreadhavede

cidedyetalreadyfinishedHavereadUsethewordsinbracketstocompletetheconversations.4a1.A:Wouldyoulikesomethingtodrink?B:No,thank

s.___________________(just/drinksometea)2.A:Iheardyoulostyourkey.____________________?(find)B:No,notyet.I’vejustdrunksometea.Haveyoufoundityet3.A

:DoyouknowwhenTomisleaving?B:_________________.(already/leave)A:When____________?(leave)B:Thismorning.4.A:Isyoursistergoingtoth

emovieswithustonight?B:No.__________________________.(already/seethefilm)5.A:Whatdoyourparentsthinkaboutourplan?B:I____________

_______.(not/tellthem/yet)HehasalreadyleftdidheleaveShehasalreadyseenthefilmhaven’ttoldthemyet同学们要注意现在完成时与一般过去时的区别。虽然这两个时态都和过去发生的事情有关，但是现在完成时强调这一动

作与现在的关系，如对现在产生的结果、影响等，而一般过去时只表示过去的事实，不表示和现在的关系。如：Iwenthomeat10:00yesterday.Ihavegothomenow.我昨天十点回家的。现在我已经到家了。Ihavealreadyfinishedmyhomewor

k.Ifinisheditanhourago.我已经写完作业了，我是一个小时之前写完的。Fillintheblankswiththecorrectformsofthewordsinbrackets.4bSally____(love)reading.Inthemorning

,shereadsthenewspaperandintheeveningshereadsbooks.She___already____(read)morethan100differentbooks!Herfavoritekindofbooksissc

iencefiction.Sheisinterestedinscienceandtechnologyandlovestoimaginewhatloveshasreadtheworld_______(be)

likein50years.She________(finish)readingabookaboutrobotslastweekand_________(write)abookreportaboutitnextweekforherFrenchclass.Ev

erytimesheisinthelibrary,Sallylooksatthemanybooksshe__________(notread)yetandshecan’twaittoreadthem!willbefinishedwillwr

itehasn’tread1.—Chinadevelopssofast.—That’strue.It_____alotalready.(2011安徽芜湖)A.changesB.changedC.willchangeD.haschanged2.J

uliaisn’tgoingtothecinemawithusbecauseshe______thefilm.(2013浙江湖州)A.seesB.sawC.willseeD.hasseen3.—I’dliketointroducemybestfr

iendtoyou,Peter.—Thankyou,Lucy.Butwe_______already.(2012河南)A.meetB.metC.willmeetD.havemet4.—Kitty,willyougotoseethefilmColdMountainthisevenin

g?—No,Iwon’t.I____italready.(南京市)A.sawB.haveseenC.seeD.willsee5.Ourschoolishavingasportsmeeting.Someone____herealready.(2011黑龙江)A.ar

rivedB.havearrivedC.hasarrived6.—___you___themovieGongfuPandaII？—Notyet.I’llseeitthisSunday.(2011四川内江)A.Did,seeB.Do,seeC.Have,seen1.Review

thenewwordsandexpressions.2.MakesentencesusingthePresentperfecttensewithalreadyandyet.(atleast10sentences)