八年级下册《Section A Grammar focus 4a-4c》获奖教案人教版初中英语-八年级英语教案

Period3SectionA3Grammarfocus-4cStep1RevisiontheNile theYangtzeRiver theYellowRiver6,671km 6,300km 5,500kmTheYellowRiverislong.TheYangtzeRiverisalot_______thantheYellowRiver.TheNileis____________ofall.TheYangtzeRiverisnot____long____theNile.=TheYangtzeRiverisnot_______thantheNile.Step2Grammarfocus(Studentscomletethesentences)—What’sthehighestmountainintheworld?—Qomolangma.—HowhighisQomolangma?—It’s8,844.43metershigh.It’shigherthananyothermountain.—Whichisthedeepestsaltlakeintheworld?—TheCaspianSeaisthedeepestofallthesaltlakes.—DidyouknowthatChinaisoneoftheoldestcountriesintheworld?—Yes,Idid.It’smucholderthantheUS.Step3Grammar(Teacherconcludesandexplains)我们已经学习过形容词和副词的比较级和最高级的构成及基本用法。下面我们进一步学习与其相关的其他知识点。(Teacherhandsoutpaper,thenstudentsteachbythemselves)1.比较级前可加much,alot,abit,alittle,any,no,some,even,still等词修饰。如：Youmustworkmuchfaster.Youlookalothappierthanyoudidyesterday.Hewastootiredtowalkanyfurther.Thisbookisevenmoreusefulthanthatone.2.比较级前还可加其他表示数量的词。如：Mysisteristenyearsyoungerthanme.Wereachedheretwodaysearlierthantheothers.◆形容词和副词最高级的其他用法1.形容词最高级可被second,third等序数词修饰。如：TheAmasonisthesecondlongestriverintheworld.2.形容词最高级常用于句型“oneof+the+形容词最高级+可数名词的复数形式”，意为“最……之一”。如：LiuLiisoneofthemostpopulargirlsinourclass.3.形容词和副词的比较级和最高级可以互相转换。如：Janeistallerthantheothergirls/anyothergirlintheclub.=Janeisthetallestgirlintheclub.theother+复数名词=anyother+单数名词4.the+比较级：两者之最e.g:Sheisthetallerofthetwins.5.隐性比较（没有than的情况）e.g.Whorunsfaster,LucyorLily?You’dbettercomeearliernexttime.Heworkedhardlastterm,butheworksevenharderthisterm6.越来越......比较级+and+比较级e.g.It’sgettingcolderandcolder.7.the+比较级+句子，the+比较级+句。Themoreyouexercise,thebetteryouare.同级比较as+adj./adv.+as：与……一样e.g.SheisasthinasLily.HewritesascarefullyasLinda.②not+as/so+adj./adv.+as：与……不一样e.g.Tonydidn’trunsofastasCarterStep4Do4a.Fillintheblankswiththecorrectformsofthewordsinthebox.bigmuchpopularlongoldhigh1)TheAmazonRiverisoneofthe_______riversintheworld.It’salittle_______thantheYangtzeRiver.2)Qomolangmais8,844.43meters_____.It’soneofthemost________placesforseriousmountainclimbers.(3)Nooceanintheworldisas_____asthePacificOcean.4)AlthoughJapanis_______thanCanada,itis_______smaller.Step5Exercises一.根据句意，用括号内所给单词的适当形式填空。1.Thesnowherewas______(thick)thanthatoverthere.2.Ithinkmountainclimbingis______________(dangerous)thanrunning.3.Ofalltheboys,Daveisthe_____________(outgoing).4.Whichmountainrises_________(high),MountTai,MountHuangorMountTianzi?5.Thisroadisalmostas_____(long)asthatone.二．根据汉语意思完成英语句子，每空一词。1.我觉得滑冰是最受欢迎的运动之一。Ithinkskatingis___________________________.2.这只熊猫看上去比那只壮得多。Thispandalooks_____________thanthatone.3.你越吃得多，你就越胖。————youeat,_________youwillbe.4.在这里双龙湖比其他任何湖都深。ShuanglongLakeis__________________lakehere.5.格林城与阳光城一样古老。GreenCityis_______SunCity.Step6Do4b.Writetwocomparisonsabouttwotopics.Writetruefacts.e.g.Tworivers:theYangtzeRiverandtheAmazonRiverTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeRiveristhelongestriverinChina.Twocities:___________and___________1._______________________________________________________________.2._______________________________________________________________.Twoanimals:___________and___________1.______________________________________________________________.2.______________________________________________________________.Step6Do4c.Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.1)Whatisthehighestbuildinginourcity?2)Whatisthebusiestsubwaystationinoutcity?3)Whatisthelargestshoppingmallinourcity?4)Whichisthebiggestparkinourcity?5)Whichisthelongestroadinourcity?Step7Homework1.Memorizetheimportantstructure.2.Makesomesentencesusingas…as,...times…than,lessthan,moretha