八年级英语下册《Unit 1 past and present Grammar 2》学案 牛津版.doc

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1、《Unit1pastandpresentGrammar2》学案教学目标知识技能:Tolearnsomenewwords.Tounderstandthedifferencebetween“since”、“ago”and“for”过程与方法:Tolearntheuseofthepresentperfecttense　情感态度价值观:Tounderstandtheuseofthepresentperfecttense　教学重点AThedifferences:Since&for…　教学难点BThedifferences:Since&for

2、…　教学过程一、创设情境、导入新课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二、预习设计、成果展示现在完成时的时间表达词用于的句式表示的意思句中的位置already肯定句表示已经发生的事中间Ever表示“曾经”For表示一段时间Just表示“刚刚”Never表示“从不”Since表示“自…以后”Yet表示“还没有”Recently

4、表示“最近”三、小组合作、师生探究StepTwo:Pre-taskRecentlywehavealreadyknownalittleaboutSunshineTown.Ihaveneverbeentherebefore.Haveyoueverbeenthere?S1:No,Ihaven’tbeenthereyet.T:Mr.Chenwasbornthere.Hehasknownitsincehewasveryyoung.Hehasknownitforalongtime.StepThree:While-taskTask1:1)Tel

5、lthestudentsthatwecanuseadverbsoftimewiththepresentperfecttense,suchasalready,ever,for,just,never,sinceandyet.2)Somemoreexamples:IhavejustseenMillieontheplayground.HasMilliecalledyet?No,shehasn’t.IhavenotheardfromMillieyet.Ihavedonemyhomeworkalready.Ihaveneverreadthen

6、ovel.…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sinceIcameherelastweekalready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/inthepast10yea

7、rssofarbefore(句尾且不加时间)eg.Haveyouvisitedourcitybefore?四、归纳总结、巩固提高A1.whatyouhavelearnt?A2.TheunderstandingofthepresentperfecttenseA3.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。A1.Theboygotup20minutesago.（同义句）Theboy20minu

8、tes.Theboy20minuets.（不可用，超标）B2.Hejoinedtheclub2daysago.（同义句）