UnitUnit55OxfordEnglishModule3CultureandhistoryUnit5Unit5GrammarGrammarThepresentperfectThepresentperfecttensetense现在完成时现在完成时EducationalexchangesEducationalexchanges温故知新WhathaveSarahandEricdone?andWhathaven’ttheydone?•1.HasSarahlearnttousechopsticks?Yes,shehas.2.HasEriclearntabitoft’aichi?Yes,hehas.3.HasSarahmadealotofnewfriends?Yes,shehas.Sarahhaslearnttousechopsticks.Erichaslearntabitoft’aichi.Sarahhasmadealotofnewfriends.•4.HavetheylearntalotaboutChinesecultureandhistory?Yes,theyhave.•6.HavetheytastedBeijingroastduck?No,theyhaven’t.5.HavetheytouredaroundBeijing?Yes,theyhave.7.HasErichadmuchsuccessinChinesepainting?No,hehasn’t.TheyhavelearntalotaboutChinesecultureandhistory.TheyhavetouredaroundBeijing.Theyhaven’ttastedBeijingroastduck.Erichasn’thadmuchsuccessinChinesepaintings.•请大声朗读以下句子并观察其规律。（1）Sarahhaslearnttousechopsticks.（2）Sarahhasmademanynewfriends.（3）ErichaslearntabitofTaichi.（4）TheyhavealreadylearntalotaboutChinesecultureandhistory.（5）TheyhavetouredaroundBeijing.（6）Theyhaven’ttastedBeijingRoastDuck（7）Erichasn’thadmuchsuccessinChinesepainting.★小结：•1.以上句子使用的是_________________时态•2.这种时态的结构是______或____+_____，•它的否定形式是在________或________后面加_____________现在完成时过去分词havehasnothavehasH例子规则work-worked-workedvisit-visited-visited一般在词尾加_____taste-tasted-tastedlive-lived-lived以e结尾的加____study-studied-studiedcarry-carried-carried以辅音字母加y结尾的改_____为_____加_____stop-stopped-stoppeddrop-dropped-dropped以辅元音结尾的重读闭音节，_______末尾的辅音字母加____do-did-donego-went–gonemeet-met-metsee-saw-seen过去分词的变化规则eddyied双写ed不规则动词要特殊记(详见课本141-142页)合作探究合作探究①肯定句Theyhavealreadymadealotoffriends.Erichasmadealotoffriends.结构：主语+______/_____+____________+其它.否定句Theyhavenothadmuchsuccessyet.Erichasnothadmuchsuccessyet.结构：主语+______/_____+______+____________+其它.一般疑问句HaveyoutouredaroundBeijing?—Yes,Ihave./No,Ihaven’t.HasErictouredaroundBeijing?—Yes,hehas./No,hehasn’t.结构：______/_____+主语+____________+其它?回答：Yes,主语+______/____.No,主语+______/_____.havehas过去分词havehasnot过去分词HaveHas过去分词havehashaven’thasn’t看例句归纳现在完成时三种句式的构成。havenot=haven’thasnot=hasn’t合作探究练一练（课本练一练（课本7272页）页）GrammarGrammarexerciseexerciseErichasbeeninBeijingforaweek.Completehisemailtohismotherwiththepresentperfecttenseoftheverbsinbrackets.havemethaveplayedhascookedhavestudiedhaveseenhaven’tvisitedhaven’tdone★小结：•现在完成时的用法•Ihavespentallofmymoney.•我已经花光了我所有的钱了。（结果：现在我没有钱花了。）•★用法一：表示(过去/现在)发生的动作，对现在___（有/没有）影响或结果。•Ihavelivedheresince2000.我从2000年就已经住在这里。(结果：现在还在这里住)•★用法二：表示(过去/现在)发生的动作或状态，一直延续到现在。HaveyoueverseenBigBen?Yes,IhavealreadyseenBigBen.No,IhaveneverseenBigBen.No,Ihaven’tseenBigBenyet.HaveyouevervisitedTowerBridge?Yes,IhavevisitedTowerBridgealready.No,Ihaven’tvisitedTowerBridgeyet.No,IhavenevervisitedTowerBridge.HaveyouevervisitedBuckinghamPalace?Yes,IhaveevervisitedBuckinghamPalace.No,Ihaven’tvisitedBuckinghamPalaceyet.No,IhavenevervisitedBuckinghamPalace.1.IhavealreadyseenBigBen.=IhaveseenBigBenalready.2.--HaveyoueverseenBigBen?--IhaveeverseenBigBen.3.Ih...
