Unit4AmazingPlantsandAnimalsSectionAGrammarFocus课件-人教版八年级英语上册

Unit4AmazingAnimalsandPlantsSectionAGrammarFocus3a—3cTolearntomakecomparisonsusingsuperlatives.Totalkaboutsomeamazingplants.Objectives形/副词最高级的构成（规则变化）构成方法原级最高级多音节词和部分双音节词在词前加mostcomfortablecarefullymostcomfortablemostcarefullyTips:由“动词+-ed”或“动词+-ing”构成的形容词变最高级时，通常在该形容词前加most。interesting→mostinteresting relaxed→mostrelaxedexciting→mostexciting boring→mostboring原级最高级good/wellbestbad/badly/illworstmany/muchmostlittleleastfarfarthest/furthestoldoldest/eldest形/副词最高级的构成（不规则变化）GrammarFocus3a

Readthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?Thebluewhaleisthelargestandheaviestanimalintheworld.ThebiggestlandanimalintheworldistheAfricanelephant.Thecheetahrunsthefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinterestingplantintheworld.large—largestheavy—heaviestbig—biggestfast—fastestuseful—themostusefulinteresting—themostinterestingObservethewordsandfindtherules.Thesuperlativeformsofadjectivesandadverbs.

fastshorthighlighttallslow直接加-estheavyeasyhappyhungryearlyfunny把y变i再加-est规则变化A

B

写出下列形容词或副词的最高级1.creative_________________________2.beautifully_______________________3.big_________________________4.funny_________________________5.quiet_________________________6.good_________________________7.little_________________________8.bad_________________________mostcreativemostbeautifullybiggestfunniestquietestbestleastworst最高级的常用句型（一）◆

“主语+be+the+形容词最高级+in/of

短语”意为

“……是……中最……的”。◆“主语+实义动词（+the）+副词最高级+in/of短语”意为“……是……中最……的”。◆

“主语+be+oneofthe+形容词最高级+可数名词复数+in/of

短语”意为“……是……中最……的……之一”。Mymotheristhebusiestoneinmyfamily.TheYangtzeRiveristhelongestriverinChina.Tomworks(the)hardestinClass3.TianjinisoneofthebiggestcitiesinChina.largelatenice加-st

biggestthinnesthottestwettestfattest

bigthinhotwetfat“双写”最后一个辅音字母再加-estCD最高级的常用句型（二）◆

“疑问词+be+the+形容词最高级，甲、乙or丙？”用于三个或三个以上的人或事物之间的比较。

◆

“疑问词+助动词+主语+动词原形（+the)+副词最高级，甲、乙or丙？”◆

“主语+be+the+序数词+形容词最高级+可数名词单数+in/of短语”意为“……在……中是第几……的……”。Whoisthetallest,Tom,KateorBill?Whichcitydoyoulikebest,Beijing,ShanghaiorGuangzhou?TheYellowRiveristhesecondlongestriverinChina.Newwordsland/lænd/n.陆地；土地

v.

降落；着陆African/ˈæfrɪkən/adj.非洲的；非洲人的

n.非洲人rose/rəʊz/n.

玫瑰；蔷薇peony/ˈpiːəni/n.牡丹；芍药lotus/ˈləʊtəs/n.莲花butterfly/ˈbʌtəflaɪ/

n.

蝴蝶wing/wɪŋ/

n.

翅膀；翼Newwordsfrog/frɒɡ/

n.蛙；青蛙weigh/weɪ/

v.有......重；称重量kg(=kilogram;kilogramme)/bɔːd/千克；公斤ginkgo/skaɪ/n.银杏believe/bɪˈliːv/v.相信；认为有可能province/ˈprɒvɪns/n.省份原级最高级good/wellbestbad/badly/illworstmany/muchmostlittleleastfarfarthest/furthestoldoldest/eldest形/副词最高级的构成（不规则变化）

最高级有范围Thebluewhaleisthelargestandtheheaviestanimalintheworld.ThebiggestlandanimalintheworldistheAfricanelephant.Thecheetahrunsthefastest

amongalllandanimals.Ithinkthemostusefulplantintheworld

isbamboo.Itisperhapsthemostinterestingplantintheworld.Readthesentences

andnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?3aLead-in——Whenautumncomes,oneofthemostpopularactivities

istotakeawalk

underginkgotrees.Textbook3aReadthesentencesandnoticethewordsinbold.Whatarethewaystoformasuperlativeadjectiveoradverb?Thebluewhaleisthelargestandheaviestanimalintheworld.ThebiggestlandanimalintheworldistheAfricanelephant.Thecheetahrunsthefastestamongalllandanimals.Ithinkthemostusefulplantintheworldisbamboo.Itisperhapsthemostinterestingplantintheworld.07Exercise最高级的常用句型（一）◆

“主语+be+the+形容词最高级+in/of

短语”意为

“……是……中最……的”。◆“主语+实义动词（+the）+副词最高级+in/of短语”意为“……是……中最……的”。◆

“主语+be+oneofthe+形容词最高级+可数名词复数+in/of

短语”意为“……是……中最……的……之一”。Mymotheristhebusiestoneinmyfamily.TheYangtzeRiveristhelongestriverinChina.Tomworks(the)hardestinClass3.TianjinisoneofthebiggestcitiesinChina.最高级的常用句型（二）◆

“疑问词+be+the+形容词最高级，甲、乙or丙？”用于三个或三个以上的人或事物之间的比较。

◆

“疑问词+助动词+主语+动词原形（+the)+副词最高级，甲、乙or丙？”◆

“主语+be+the+序数词+形容词最高级+可数名词单数+in/of短语”意为“……在……中是第几……的……”。Whoisthetallest,Tom,KateorBill?Whichcitydoyoulikebest,Beijing,ShanghaiorGuangzhou?TheYellowRiveristhesecondlongestriverinChina.CompletethePassageTheginkgotreeisoneof1.__________livingtreesonearth.It’salso2.__________treeinmanyChinesecities—youcanseeitinstreets,parks,andgardens.Manypeoplesayautumnis3.__________timetovisitginkgotrees,astheirleavesare4.__________intheyear.Amonganimals,pandasare5.__________intheworld.Theylook6.__________withtheirblack-and-whitefur.Butifwetalkaboutspeed,thecheetahruns7.__________amongalllandanimals.Andelephantbirdswere8.__________and9.__________birdseveronearth—somewere3metrestall!Theseplantsandanimalsshownature’swonders.Protectingthemis10.__________waytokeepourworldbeautiful.ancient,beautiful,common,good,popular,cute,high,large,heavy,fastCompletethePassage答案：1.themostancient（对应课件3c及“oneof+最高级”结构

）2.themostcommon（对应课件“oneofthemostcommontrees...”）3.thebest（对应“good”的最高级，描述“最佳时间”）4.themostbeautiful（描述银杏叶“最美丽”）5.themostpopular（贴合熊猫“受欢迎”特征

）6.thecutest（对应“cute”的最高级，描述熊猫外形

）7.thefastest（对应猎豹速度，课件“runsthefastest...”）8.thelargest（对应象鸟体型，课件“thelargestbirds...”）9.theheaviest（对应象鸟体重，课件“theheaviestbirds...”）10.thebest（总结“保护是最好的方式”，不规则变化

）Textbook3bCompletetheconversationwiththesuperlativeformsofthewordsinbrackets.1.Amongallanimals,Ilovepandasthebest.Ithinktheyare_________(cute)animals

intheworld.2.Whichdoyouthinkis______________(beautiful),therose,thepeony,orthelotus

flower?3.Lookatthatbutterfly!Ithas_______________(colourful)

wings.4.Whichanimaljumps__________(high),thelion,themonkey,orthetreefrog?5.Theelephantbirdswere________(large)and__________(heavy)birdseveronearth.

Somecouldstanduptothreemetrestallandweighupto860kg.thecutestthemostbeautifulthemostcolourfulthehighestthelargesttheheaviest

1.Amongallanimals,Il