八年级英语下册 8B Unit1grammar1 课件 人教新目标版.ppt

grammari 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 verybusythisweek haveforgotten haveheard have gone hasn t hasbeen sandy didyouenjoytheexhibition millie yes idid i 9 learn alotaboutbeijing spastandpresent it sagoodexhibitionandi 10 decide toseeitagain doyouwanttogowithme sandy sure iwon tmissitthistime havelearnt havedecided 1 he notfinish thehomeworkyet hewilltrytofinishitquickly 2 myfamily live innanjingsince1996 3 you know himsincethen morepractice hasn tfinished haslived have known 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