Unit4AmazingPlantsandAnimalsSectionAGrammarFocus3a—3cTolearntomakecomparisonsusingsuperlatives.Totalkaboutsomeamazingplants.ObjectivesGrammarFocus3a

Readthesentencesandnoticethewordsinbold.Whatare

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

fast

shorthigh

lighttallslow直接加-estheavy

easyhappyhungryearlyfunny把y變i再加-est規(guī)則變化A

B

largelatenice加-st

biggestthinnesthottestwettestfattest

bigthinhotwetfat“雙寫”最后一個輔音字母再加-estCDuseful

interestingbeautifulgood/wellbad/badlymany/muchlittlefar在詞前加themost-bestworstmostleastfarthest/furthest不規(guī)則變化EF形容詞和副詞的最高級1.表示三者或三者以上(人或事物)的比較，其中有一個在某一方面超

過其他幾個，后面可用帶有in、of、among的短語等來說明比較的范

圍。形容詞最高級的前面一般要加定冠詞the，副詞最高級前的the

可以省去。①Thebluewhaleisthelargestandheaviestanimalintheworld.②Inmycountry,Julyisthehottestmonthoftheyear.③Thecheetahruns(the)fastestamongalllandanimals.某一范圍內(nèi)的比較用in同一類事物范圍內(nèi)的比較用of副詞最高級前的the可以省去哦Thisismyworstperformance.SheisLucy’sbestfriend.Reminder:如果最高級前有形容詞性物主代詞或名詞所有格等修飾語時則不再用定冠詞the。2.最高級的常用結(jié)構(gòu)（1）the+形容詞或副詞最高級+in/of短語

……中最……的

Tomisthetallestinhisclass.

Tomruns(the)fastestofallthestudents.

（2）序數(shù)詞與最高級結(jié)合

TheYangtzeRiveristhethirdlongestriverintheworld.（3）oneofthe+形容詞或副詞最高級+名詞復(fù)數(shù)表示“最……之一”

Beijingisoneofthelargestcitiesintheworld.（4）特殊疑問句中的最高級

Whichanimaljumpsthehighest,thelion,themonkey,orthetreefrog?

Whoisthekindestpersoninyourfamily?（5）比較級表達最高級的含義

Juliaistallerthananyothergirlinherclass.

=Juliaisthetallestgirlinherclass.isthe________mountainintheworld.QomolangmahighestLet’spractice!isthe_______riverinChina.longestTheYangtzeRiverReadandguess.are____________________ofalltheanimalsinChina.themostfamousPandasTheyarefatandcute,blackandwhite.TheyonlyliveinChinaandaremorefamousthananyotheranimaltoChinese.Peopleovertheworldlovethemandwe’redoingourbesttolookafterthem.Thinkandguess.ItbeginsatChang’an.Thisisanoldtradingroad.

isthe_______tradingrouteintheworld.Themainproductissilk.oldest

TheSilkRoadfriendlysingwellhard-working

popularthintalentedsmartfunnyA:Whosings(the)bestinyourclass?A:Whoisthethinnestinyourclass?B:Ithink…Iwanttoknowyou!Let’splayagame!Completethesentenceswiththesuperlativeformsofthewordsinbrackets.3b

1.Amongallanimals,Ilovepandasthebest.Ithinkthey

are___________(cute)animalsintheworld.2.Whichdoyouthinkis__________________(beautiful),therose,thepeony,orthelotusflower?3.Lookatthatbutterfly!Ithas__________________(colourful)wings.4.Whichanimaljumps____________(high),thelion,the

monkey,orthetreefrog?5.Theelephantbirdswere_______________(large)and_________(heavy)birdseveronearth.Somecouldstand

uptothreemetrestallandweighupto860kg.thecutestthemostbeautifulheaviestthemostcolourfulthehighestthelargestCompletethepassagewiththesuperlativeformsofthewordsinthebox.3c

ancientbeautifulcommongoodpopularTheginkgotreeisoneof_________________livingtreesonearth.Ginkgotreesfirstappearedover200millionyearsago.Chinesepeoplelovetheginkgo,asitisasymbolofhopeandlonglife.ManyChinesebelievethatthemostancienttheoldginkgotreeintheZhongnanMountainsinShaanxiProvinceis_________________.Thousandsoftouristscometoseeiteachyear,especiallyinmid-October,asitis____________timetoseeit.Theginkgotreeisoneof_________________treesinstreets,parks,andgardensacrossChina.Whenautumncomes,oneof________________activitiesistotakeawalkunderginkgotrees.Peoplebelievethebrightyellowleavescanbringjoytotheirheart.themostcommonthemostbeautifulthemostpopularthebest散步Languagepoints1.ThebiggestlandanimalintheworldistheAfricanelephant.

世界上最大的陸地動物是非洲象。

landn.陸地；土地v.降落；著陸

takeoff起飛onland在陸地上byland經(jīng)陸路Apieceoflandinthemiddleoftheseaisisland.海中央的一塊陸地是島嶼。Didyougotherebylandorbysea?您是通過陸路還是海路去的？

Theplanelandedbeforethestormcame.飛機在暴風(fēng)雨來臨之前降落了。Abutterflylandedonhershoulder.一只蝴蝶落在了她的肩膀上。Africann.非洲人（可數(shù)名詞）復(fù)數(shù)：Africansadj.非洲的;非洲人的①

TherearefiveAfricansinourschool.我們學(xué)校有五個非洲人。②Africandrummingplaysakeyroleintraditionalceremonies.

非洲鼓樂在傳統(tǒng)儀式中發(fā)揮著關(guān)鍵作用。

Doyouknow?Asia亞洲Asian亞洲的；亞洲人Africa非洲African非洲的；非洲人Europe歐洲European歐洲的；歐洲人2.Somecouldstanduptothreemetrestallandweighupto860kg.

有些可以站立到3米高，重達860公斤。weighv.有……重；稱重量weight

n.重量；分量常見搭配weighabout+數(shù)詞重約……

weighover+數(shù)詞超過……重weighupto+數(shù)詞重達……

固定詞組putonweight增加體重loseweight減重—Howmuchdoesthebabyweigh?—Itweighs4kg.1.HainanisaverylargeIsland.Itisthesecond_________

islandinChina.(large)2.Ourteacherisas______asbefore.(busy).3.Heis__________________amongus.(careful)4.LiLeijumpedfar______thanJim.(far)5.Thebusierheis,the________hefeels.(happy)busythemostcarefulfartherhappierlargestI.用所給單詞的適當形式填空。Exercises

3.LinSenis_______________________intheclassbecausehenevergetstoschoolontime.（最懶的學(xué)生之一）4.Edisonwas_________________________intheworld.

(最偉大的發(fā)明家之一）oneofthelazieststudentsoneofthegreatestinventorsTheYangtzeRiveris________________riverintheworld.(第三長河）thethirdlongest2.TheAtlanticis__________________oceanintheworld.

(第二大洋）thesecondbig