新人教八年级上英语课件Unit 4 Amazing Plants and Animals Section A(Grammar Focus 3a-3c)课件

Unit4AmazingPlantsandAnimalsSectionAWhatcanplantsandanimalsdo?GrammarFocus3a-3c01020304教学目标通过语法表格，引导学生逐步全面掌握最高级的内容。引导学生观察与翻译，培养其独立思考和发散性性思维，变被动学习为主动学习。引导与培养学生使用最高级，从而更清楚地表达需求。能够根据学习目标和个人情况，选择适合的学习策略，如多观察，多反思；多记笔记，多背诵等。教学重难点0102能够通过表格活动，引导学生掌握最高级的内容；能够根据学习目标和个人情况，选择适合的学习策略。如何引导学生观察，培养其独立思考和发散性性思维；如何引导学生使用最高级，加强语法记忆巩固。GrammarFocus

3a-3cSectionA01Watchthevideo

1Lead-inPart1.QuestionWhatdoesthisvideotalkabout?World'sRecordsPart2.ThinkandsayCanyouexpresstheseworld'srecordsinonesentence?●MountEverestisthehighestmountainonEarth,standingatanelevationof8848.86meters.●TheNileRiveristhelongestriverintheworld,meanderingacrossthedesertsofNorthAfricafor6650kilometers.●TheSaharaDesertisthelargesthotdesertintheworld,coveringanareaofnearly9millionsquarekilometers.●BluewhalesarethelargestanimalsonEarth,reachinglengthsofover30metersandweighingupto180tons,gracefullymovingthroughthedeepsea.●TheMarianaTrenchisthedeepestplaceintheworld'soceans,plungingtoadepthof10994metersandchallenginghumanity'sexplorationofextremeenvironments.●TheGreatWallisthelongestman-madestructureintheworld,spanning21196kilometersandbearingthousandsofyearsofhistoryandculture.

2PresentationPart1.

Readthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?3aTranslateallthesentences.Thebluewhaleisthelargestandtheheaviestanimalintheworld.ThebiggestlandanimalintheworldistheAfricanelephant.Thecheetahrunsthefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinterestingplantintheworld.

2PresentationPart2.

Readthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?3aThebluewhaleisthelargestandtheheaviestanimalintheworld.ThebiggestlandanimalintheworldistheAfricanelephant.Thecheetahrunsthefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinterestingplantintheworld.Question:Whichpartsofspeech(词性)havesuperlativeforms?最高级thesuperlativeadjective形容词adverb副词Thebluewhaleisthelargestandtheheaviest

animalintheworld.Thebiggest

landanimalintheworldistheAfricanelephantThecheetahruns

thefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinteresting

plantintheworld.形容词形容词副词形容词形容词形容词

2PresentationPart3.Readthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?

3aDoyouknowtherules?音节是否是规则变化Thebluewhaleisthelargestandtheheaviestanimalintheworld.ThebiggestlandanimalintheworldistheAfricanelephant.Thecheetahrunsthefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinterestingplantintheworld.Thebluewhaleisthelargestandtheheaviest

animalintheworld.Thebiggest

landanimalintheworldistheAfricanelephantThecheetahruns

thefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinteresting

plantintheworld.双音节heavy最高级双音节useful的最高级单音节large最高级单音节big最高级单音节fast最高级三音节interest的最高级不规则变化呢？形容词和副词的最高级的构成(1)规则变化构成方法原级比较级单音节词和部分双音节词一般情况下，最高级词尾加-esttall;short;fasttallest；shortest；fastest以字母e结尾的词，最高级词尾加-stlarge;latelargest；latest重读闭音节词尾只有一个辅音字母时，先双写该辅音字母，然后最高级词尾加-estbig;fat;thinbiggest；fattest；thinnest以“辅音字母+y”结尾的双音节词，先把y改为i，然后最高级词尾加-esteasy;heavy;earlyeasiest；heaviest；earliest多音节词和部分双音节词词前加most构成最高级beautiful;popularmostbeautiful；mostpopular(2)不规则变化原级比较级例句good(形容词)/well(副词)bestSheisthebeststudentintheclass.Heplaysthepianobestamongus.bad(形容词)/badly(副词)worstThisistheworstmovieI'veeverseen.Sheperformedworstinthecompetition.many(形容词)/much(副词)mostThisisthemostinterestingbookI'veread.Sheworksmostefficientlyintheteam.little(形容词/副词)leastHehastheleastexperienceinthisfield.ShespeaksEnglishtheleastfluentlyamongus.far(形容词/副词)farthest(具体距离的远近)Themoonisthefarthestcelestialbodywecansee.Hethrewtheballfarthestinthecompetition.furthest(抽象意义的深远)Thistheorygoestothefurthestextentofhumanimagination.ShehasthoughtfurthestaboutthefutureofAI.

2PresentationPart4.Readthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?3aPayattentiontotheredwords最高级有范围？Thebluewhaleisthelargestandtheheaviestanimalintheworld.ThebiggestlandanimalintheworldistheAfricanelephant.Thecheetahrunsthefastest

amongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinterestingplantintheworld.Yes！in+范围ThisisthebiggestcityinChina.Hewastheyoungestplayerintheteam.表示“在……范围内”，后接大范围（如地点、组织、时间阶段等）。of+具体成员/同类事物Sheisthemosttalentedofallthestudents.Thisappleisthesweetestofthefive.形容词和副词的最高级的范围表示“在……中”，后接具体的人或事物（复数名词/集合名词），强调从同类中选出“最……”的个体。among+同类群体Heistherichestmanamongthebillionaires.Whichisthesmallestamongthesebirds?强调“在……群体中”，后接复数名词或代词，可与of互换，但among更侧重“在多者之间”的分布感。outof+明确范围Shescoredthehighestmarksoutofallcandidates.Thissongismyfavoriteoutofhisnewalbum.表示“从……中”，后接明确的复数名词或代词，常用于强调“从某一特定范围中选出”。用定语从句修饰先行词，明确比较范围。例句：ThisisthemostexcitingmoviethatIhaveeverseen.翻译：这是我看过的最激动人心的电影。范围：我看过的所有电影（通过定语从句thatIhaveeverseen限定）。HeisthekindestpersonwhomIhavemetinmylife.翻译：他是我一生中遇到过的最善良的人。范围：我一生中遇到的人（通过定语从句whomIhavemetinmylife限定）。范围拓展（1）定语从句（2）状语从句（隐含范围）通过条件或比较状语从句间接限定范围。例句：Youcanchoosethebestgiftifyoulookthroughalltheshops.翻译：如果你逛遍所有商店，就能选出最好的礼物。范围：所有商店里的礼物（通过条件状语从句ifyoulookthroughalltheshops隐含范围）。Sheworkshardestwhencomparedwithhercolleagues.翻译：和同事相比时，她工作最努力。范围：同事群体（通过比较状语从句whencomparedwithhercolleagues限定）。

2PresentationPart5.Readthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?3aPayattentiontotheunderlinedwordsoneof结构Well,Ithinkmossisoneoftheoldestplants.BambooisoneofthemostpopularsubjectsinChinesepaintings.Well,bambooisoneofthefastest-growingplants.Also,it’soneofthemostusefulplantsintheworld.oneof+限定词+形容词最高级+复数名词。表示“最……的……之一”，强调在同类事物中属于某一特定群体。【注意】形容词最高级前必须加the，但当最高级前有物主代词（如my,our）或其他限定词时，the省略。例如：(1)形容词最高级前必须加the（无物主代词等限定词时）Sheisoneofthemosttalentedsingersintheworld.她是世界上最有才华的歌手之一。结构拓展oneof结构(2)当最高级前有物主代词（my/our/his/her/their等）或其他限定词时，省略the。Heisoneofmybestfriends.他是我最好的朋友之一。Thatbookisoneoftheirmostpopularworks.那本书是他们最受欢迎的作品之一。Thisisoneoftheselargestcompaniesintheindustry.这是该行业中这些最大的公司之一。SheisoneofTom’sclosestcolleagues.她是汤姆最亲密的同事之一。

2PresentationPart6.Readthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?3aLet’sreview!Doyourememberthesesentences?YouplaytheChineseflutebetterthananyoneelseinourmusicclub.你吹中国笛子比我们音乐俱乐部里的任何人都好。(你吹的最好)Iloveplayingsportsmorethananything.我最喜欢运动。比较级表达最高级回忆比较级表示最高级的用法当句子中出现(more)than+比较范围（如anything,anyone,anyother...）

时，常隐含最高级含义。例如：Herunsfasterthananyoneinhisclass.他比班上任何人都跑得快

→

他是班上跑得最快的。ThismovieismoremovingthananyotherI’veseen.这部电影比我看过的任何一部都感人

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这是我看过的最感人的电影。

3PracticePart1.Completethesentenceswiththesuperlativeformsofthewordsinbrackets.3b1.Amongallanimals,Ilovepandasthebest.Ithinktheyare_________(cute)animalsintheworld.2.Whichdoyouthinkis__________________(beautiful),therose,thepeony,orthelotusflower?3.Lookatthatbutterfly!Ithas__________________(colourful)wings.4.Whichanimaljumps___________(high),thelion,themonkey,orthetreefrog?5.Theelephantbirdswere___________(large)and_________(heavy)birdseveronearth.Somecouldstanduptothreemetrestallandweighupto860kg.thecutestthemostbeautifulthemostcolourful(the)highestthelargestheaviestPart2.Completethepassagewiththesuperlativeformsofthewordsinthebox.3cancientbeautiful

common

good

popularTheginkgotreeisoneof________________livingtreesonearth.Ginkgotreesfirstappearedover200millionyearsago.Chinesepeoplelovetheginkgo,asitisasymbolofhopeandlonglife.ManyChinesebelievethattheoldginkgotreeintheZhongnanMountainsinShaanxiProvinceis____________________.Thistreeisover1,400yearsold.Thousandsoftouristscometoseeiteachyear,especiallyinmid-October,asitis_____________timetoseeit.Theginkgotreeisoneof__________________treesinstreets,parks,andgardensacrossChina.Whenautumncomes,oneof_____________activitiesistotakeawalkunderginkgotrees.Peoplebelievethebrightyellowleavescanbringjoytotheirheart.themostancientthemostbeautifulthebestthemostcommonthemostpopular

4ProductionMakesentences:Thefirststudentmakesasentenceusingthesuperlativeformofanadjective,forexample,"Sheisthemostbeautifulgirlinourclass."Thenthenextstudenthastostartanewsentencewiththelastletterofthesuperlative-formadjectiveintheprevioussentence,andsoon.Gametime!ForexampleSheisthemostbeautifulgirlinourclass.（l结尾）ThisisthelongestriverI'veeverseen.（g结尾）That'sthebiggestappleonthetree.（g结尾）

Heisthesmartestb