江苏省连云港市东海县晶都双语学校八年级英语下册 Unit 1 Past and Present Grammar 2课件 （新版）牛津版.ppt

unit1friends grammar presentperfecttense learningaims 1 掌握现在完成时的基本结构 基本用法和动词过去分词的变化规律 2 理解并运用常和现在完成时连用的时间表达方式 3 能够在语境中正确运用现在完成时 guideone 1 readthefollowingsentences 2 1 i velivedheresinceiwasborn 2 haveyouevermovedhouse 3 hasthetownchangedalotovertheyears 4 thegovernmenthasturnedpartofthetowncentreintoanewpark 5 however mostofmyoldfriendshavemovedaway 6 ithasbecomeimpossibleforustoseeeachotherasoftenasbefore 7 we velivedinthisareasincethen 8 haveyouseenmyfood think 4 1 以上的句子都用了 句子中的 和 由主语确定 谓语动词用 它的结构是 现在完成时 have has 过去分词 have has 动词的过去分词 2 判断句中时态是一般过去时还是现在完成时 3 1 hewenttothecinemalastnight 2 hehasalreadyseenmanygreatfilms 3 marryhasforgottentodoherhomework 4 theyhavebeeninhongkongsince1998 5 wejoinedthedramaclubtwoyearsago 3 理解现在完成时 给其定义 past present eddiehaslivedwithmilliesincehewasborn eddiehaslivedwithmillieforfouryears past present 4years eddiewasbornfouryearsago 1 readthefollowingsentencesandunderstandthemeaningofthepresentperfecttense ihavelivedheresinceiwasborn eddiehasjusteatenhobo sfood ihavealreadyreadthisbookmanytimes 表示从过去开始一直持续到现在的动作或状态 表示过去发生 并对现在有一定影响的动作 表示某事直到现在发生了许多次 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 guidetwo 1 参阅p13和p122 123快速写出下列动词的过去式和过去分词 4 haveamatch whowritesbest be eat see change move live get become forget marry stop teach come have 动词的过去分词变化规则可参阅动词的过去式变化规则 2 finishpartaonpage14 3 partaborrowed hoped made got planned cried sent watched said grown hit enjoyed guidethree 1 readthecontextintheformonpage12andfinishthefollowingblanks 4 1 主语是 时 用have 主语是 时 用has 2 肯定句 否定句 一般疑问句 句中的have has可看做助动词使用 have has可直接在后面加 表否定 havenot hasnot have has也可直接 表疑问 2 changethemaccordingtotherequirements 4 1 haveyouevermovedhouse 否定回答 2 hasthetownchangedalotovertheyears 肯定句 3 thegovernmenthasturnedpartofthetowncentreintoanewpark 一般疑问句 并作出肯定回答 4 mostofmyoldfriendshavemovedaway 否定句 3 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 think 如何识别运用现在完成时 现在完成时有一些时间标志词 already yet ever for just never recentlysince yet howtousethem practice 选择正确的词填空 2 1 i comebackfromthesupermarket for just since 2 ihave beentochengdu for never yet 3 hehasworkedthere heleftschool already just since 4 shehasknownsam nineyears for never since 5 haveyou riddenahorse ever for yet practiceinclass 10 finishpartbconpage1