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1、Unit1Howtallareyou?教学目标1.学习形容词的比较级形式，及其变化规律；2.学习比较级句型，掌握中心词汇“than”的使用；.3、本单元难点是：不规则比较级写法的掌握。olderyoungeroldyoungtallershortertallshortlongershorterlongshortbigbiggersmallsmaller161cmonehundredandsixtyonecentimetersHowtallareyou?（你的身高是多少？）Iam…cmtall.I’m161cmtall.Howoldareyou?Iam…yearsold.(你的年龄是多大？）I
2、’m12yearsold.Let’slearnZhangPeng:Howtallareyou?John:I’m1.61metres?ZhangPeng:Oh!I’mtaller.John:You’reolderthanme,too.taller更高的shorter更矮的longer更长的shorter更短的younger更年轻的older更老的bigger更大的smaller更小的stronger更强壮的centimeter(cm)厘米构成规则1）形容词+erlong→longer,strong→stronger,fast→faster2）以不发音e结尾的+rlarge→larger,nic
3、e→nicer,safe→safer3）以一个辅音字母结尾的重读闭音节，双写末尾辅音字母，再加+erfat→fatter,thin→thinner,big→bigger4)以辅音字母y结尾，变y为i+erhappy→happier,busy→busier,early→earlier,funny→funnier5)多音节词和部分双音节词，在词前加more.difficult→moredifficult,outgoing→moreoutgoing6)不规则变化good/well→better,many/much→more,bad/ill→worse，little→less,far→farther
4、/further将下列形容词变为比较级。A1.tall-------()2.short------()3.strong---()4.old---------()5.young---()6.long-------()B1.heavy----()2.funny-----()C1.big-------()2.thin-------()3.hot-------()4.fat--------()D.nice-----()tallershorterstrongerolderyoungerlongerheavierfunnierbiggerthinnerhotterfatternicerC1.big---
5、----()2.thin-------()3.hot-------()4.fat--------()biggerthinnerhotterfatterHowtousethegrammar:thecomparativedegree.＋be＋comparative＋than＋anotherformperson(thing)主语＋be＋形容词比较级 ＋than＋另一人（事物）Eg:I’mstrongerthanDill.I’mtallerthanEdson,butEdsonisfatterthanme.Myhairislongerthanyours.Let’stalkZhangPeng:Look!
6、That’sthetallestdinosaurinthishall.Mike:Yes,itis.Howtallisit?ZhangPeng:Maybe4metres.Mike:Wow!It’stallerthanbothofustogether.ZhangPeng:Look!Therearemoredinosaursoverthere!Mike:Theyareallsobigandtall.ZhangPeng:Hey,thisdinosaurisn’ttall！I’mtallerthanthisone.Mike:Oh,yes.Howtallareyou?ZhangPeng:I’m1.65m
7、etres.Learningaims:1.能听，说，读，写5个形容词的比较级形式：heavier，thinner，longer，bigger，smaller。2.能正确运用形容词性物主代词和名词性物主代词做题。heavylightheavierlighterthinfatthinnerfatterThebrowndogisheavier.Thewhitedogisthinner.Howheavyareyou?
