江苏省宜兴市屺亭中学八年级英语下册《Unit 1 Past and preasent》Grammar I课件 牛津版.ppt

牛津版八年级 8b unit1 grammar unit1pastandpresent 一 现在完成时的含义 现在完成时用来表示之前已发生或完成的动作或状态 其结果和现在有联系 动作或状态发生在过去但它的影响现在还存在 也可表示持续到现在的动作或状态 thepresentperfecttense 现在完成时 past present eddiehaslivedwithmilliesincehewasborn eddiehaslivedwithmillieforfouryears past present 4years eddiewasbornfouryearsago 二 现在完成时的构成 现在完成时的肯定句句型 主语 第一 二人称单 复数 have 过去分词 wehavelivedinnanjingfor10years e g ihavefinishedmyreport 主语 第三人称复数 have 过去分词e g theyhavemovedaway 主语 第三人称单数 has 过去分词e g hehasbeeninbeijingfortwomonths 2 现在完成时的否定句句型主语 have has not 过去分词 e g ihavenotseenharrypotteryet hehasn tbeentotianjinsincethen 3 现在完成时的一般疑问句句型have has 主语 过去分词haveyou hashe yes ihave yes hehas no ihaven t no hehasn t 三 现在分词的构成 travelled moved stayed owned learned visited stopped finished shopped solved a规则动词的过去分词 b不规则动词的过去分词 thought caught given made written put cost grown hurt run felt fallen flown had drunk brought worn sung forgotten kept completethesentencesusingthepresentperfecttense they finish theirhomework 2 mrandmrsli notcome backyet 3 john play thiscomputergameafewtimes haven tcome havefinished hasplayed 4 we notsee thatfilmyet 5 mrdong repair overtenbicyclessincelastmonday 6 you notvisit meforalongtime haven tseen hasrepaired haven tvisited completetheconversationusingthecorrectformsoftheverbsinbrackets millie 1 you see anyexhibitionsrecently sandy sandy no i 2 whataboutyou millie well i 3 see one isawitatthehistorymuseumlastweek sandy what sitabout haveseen haveseen haven t millie i 4 forget thetitle it saboutchangesinbeijingoverthepastcentury sandy oh yes i 5 hear aboutit 6 yourcousin go withyou millie no he 7 he 8 be verybusyrecently haveforgotten haveheard did go didn t hasbeen sandy didyouenjoytheexhibition millie yes idid i 9 learn alotaboutbeijing spastandpresent it sagoodexhibitionandi 10 decide toseeitagain doyouwanttogowithme sandy sure iwon tmissitthistime learnt havedecided 1 he notfinish thehomeworkyet hewilltrytofinishitquickly 2 myfamily live innanjingsince1996 3 you know himsincethen hasn tfinished haslived have known morepractice 4 they already decide togotokunmingfortheholiday 5 we move tothenewflatsincelastmonth 6 thegirl learn englishforabouttwoyears have decided havemoved haslearned 7 myfatherwenttobeijingtwoweeksago i notsee himsincethen 8 tom write letterstoyourecently 9 jack smotherisn tathome she go tothesupermarket 10 thefilm be onforabout20minutes wemissedthebeginning haven tseen has written hasgone hasbeen 如何区别现在完成时和一般过去时1 isawthefilmyesterday 我昨天看了那部电影 ihaveseenthefilm 我已经看过那部电影了 区别一 的谓语动词用动词的过去式 而 的谓语基本构成是 have has 动词的过去分词形式 一般过去时 现在完成时 2 ihadsupperanhourago 我一小时前吃了晚饭 ihavejusthadsupper 我刚刚吃过晚饭 区别二 通常与表示过去确切时间的时间状语连用 例如 yesterday lastweek in2002 anhourago等 一般过去时 则常与just already ever never等副词和thesedays thisweek since for 等表示一段时间的时间状语连用 现在完成时 3 hewenttoguilinin1998 他在1998年去过桂林 这句话只说明他在过去某个时间去过桂林 hehasneverbeentoguilin 他从来没有去过桂林 这句话说明他没去过桂林 而且强调至今都没去过 区别三 侧重陈述一件过去的事情 所表示的动作或状态对现在无影响 表示的动作或状态与现在有联系 侧重强调这一动作对现在所造成的影响 一般过去时 现在完成时 请从各题后所给的a b c d四个选项中选出最佳答案 1 ihaveseentheplayalready when you it a have seeb will seec did seed did seen2 mrblack inchinaforfiveyears a livingb haslivedc lived isgoingtolive c b 3 why she angry becausehe athimjustnow a did get shoutedb has got shoutedc did get hasshoutedd has got hasshouted a 4 you mewaitingfortwohours i foryousincefive a kept waitedb havekept waitedc kept havewaitedd havekept havewaited c 5 theboys onlytwosubjectslastterm butthistermthey five a have haveb had hadc had haved havehad have c 6 he todrawhorsesalready when he lastyear a learned hasb learned didc haslearned hasd haslearned did d 7 mrblack inchinasincefiveyearsago a livedb haslivedc livesd isgoingtolive b 8 we treeslastsunday sofarwe over3 000treesthere a planted plantedb planted haveplantedc haveplanted plantedd haveplanted haveplanted b 9