八年级英语下册 8b unit 1 past and present grammar 2教学案 牛津版

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1、8BUnit1pastandpresentGrammar2【教学目标】知识技能:Tolearnsomenewwords.Tounderstandthedifferencebetween“since”、“ago”and“for”过程与方法:Tolearntheuseofthepresentperfecttense情感态度价值观:Tounderstandtheuseofthepresentperfecttense【教学重点】Thedifferences:Since&for…【教学难点】Thedifferences:Since

2、&for…　【课前预习】StepOne:Lead-inReviewthepresentperfecttense.→Structure: have/has+V(过去分词)Pastparticiple:规则动词的过去分词与过去式相同。Addsomeirregularverbs.teach---taught---taughtbring---brought---broughtget—got—gotknow--knew—knowngrow—grew—grownfind--found—foundhold—held—heldshow—

3、showed—shownkeep---kept---keptleave---left---leftlose---lost---lostrun---ran---runswim---swam—swum     drive—drove--drivenbegin—began--begun【课堂学习】三、小组合作、师生探究StepTwo:Pre-taskRecentlywehavealreadyknownalittleaboutSunshineTown.Ihaveneverbeentherebefore.Haveyoueverbe

4、enthere?S1:No,Ihaven’tbeenthereyet.T:Mr.Chenwasbornthere.Hehasknownitsincehewasveryyoung.Hehasknownitforalongtime.StepThree:While-taskTask1:1)Tellthestudentsthatwecanuseadverbsoftimewiththepresentperfecttense,suchasalready,ever,for,just,never,sinceandyet.2)Somemo

5、reexamples:IhavejustseenMillieontheplayground.HasMilliecalledyet?No,shehasn’t.IhavenotheardfromMillieyet.Ihavedonemyhomeworkalready.Ihaveneverreadthenovel.…3)现在完成时与时间副词(onPage16)for+段时间fortwodays/threeyearssince+点时间sincelastnight/1992sincetwodaysagosince+句子sinceI

6、cameherelastweekalready一般用于肯定的陈述句yet一般用于否定句和疑问句(否定句中常译为“还”；疑问句中常译为“已经”。)just刚（注意与justnow的区别）recently近来ever曾经(常用于问句)never从不uptonowtillnowover/inthepast10yearssofarbefore(句尾且不加时间)eg.Haveyouvisitedourcitybefore?四、归纳总结、巩固提高1.whatyouhavelearnt?2.Theunderstandingofthep

7、resentperfecttense3.Theuseoftheperfecttense:have/has+p.pfor+段时间since+点时间(过去时间)since+句子(一般过去时态的句子)五、当堂检测、及时反馈句型转换。1.Theboygotup20minutesago.（同义句）Theboy20minutes.Theboy20minuets.（不可用，超标）2.Hejoinedtheclub2daysago.（同义句）【板书设计】【教学反思】命题人审核人审批人学生姓名班级评价批阅日期序号6一、翻译下列短语1.新鲜

8、空气6.借给我一本书2.火车站7.在这些年里3.住在小村庄里8.投入使用4.搬进新公寓9.过去常住在旧房子里5.许多野生生物10.这个地方的许多变化二.用所给动词的正确时态填空：1.Ourteachertoldusthatthesun(rise)intheeast.2.Thisisthemostinteresting