Uint1Pastandpresentperiod4教学目标1.认识和了解现在完成时的构成和用法。2.了解现在分词的构成。重点难点现在完成时与一般过去时的联系与区别。教学过程复备PartOne:Pre-taskS2:Forfouryears.T:Yeah,EddiehaslivedwithMillieforfouryears.（板书）PartTwo:While-taskTask1Letthestudentsknowthatthesentencesontheboardallincludethepresentperfecttense.Tellthestudents:Weusethesimplepasttensetotalkaboutwhathappenedatadefinitetimeinthepast,like“Eddiewasbornfouryearsago”.Weusethepresentperfecttensetotalkaboutthingsthatstartedinthepastandstillhavesomeconnectionwiththepresent,like‘EddiehaslivedwithMilliesincehewasborn’.‘EddiehaslivedwithMillieforfouryears.’Task2Wemakepositiveandnegativesentencesusingthepresentperfecttenselikethis.subjecthave/has+(not)pastparticipleI/You/We/Theyhave(not)moved.He/She/Ithas(not)moved.Weformthepresentperfecttensebyadding‘have’or“has”beforeapastparticiple.e.g.have/has+seen/done/sung/,etc.Task3Tellthestudenthowtowritethepastparticipleofverbs.1)Weadd‘-ed’toregularverbs.（板书SeePage13）2)Weformtheirregularverbsdifferently.Wedonotadd‘-ed’.AskthestudentstolookatthetableofirregularverbsonPage121.Askthestudentstorememberthepastparticipleofirregularverbs.动词原形动词过去式动词过去分词•ABBbringbroughtbrought•ABCdodiddone•AAAletletlet•ABAcomecamecome•AABbeatbeatbeatenTask4(A1)Hereisashortexerciseforstudentstofinish.Askthestudentstocompletethetablewiththecorrectpastparticipleonpage10.Andthenworkouttherule.Task5(A2)Aftertheshortexercise,askthestudentstocompletethesentencesusingthepresentperfect.Helpthemtocomplete.Askthemnottoforgettheverb‘have’/‘has’.PresentthePresentperfecttensebriefly.Subject+have/has+pastparticipleTask6Teachthestudentshowtoaskandanswerquestionsusingthepresentperfecttense.Task7Chattime(A3)MillieandSandyaretalkingaboutafilmaboutHongKong.Completetheirconversationusingthecorrectformsoftheverbsinbrackets.PartThree:Post-taskI.分清一般过去时与现在完成时Icleanedtheblackboardhalfanhourago（只说明“擦”和其发生的时间)Ihavecleanedtheblackboard.（说明现在黑板是干净的）教学反思
