AmazingnatureUnit5Understandingideas—GrammarLearningobjectivesBytheendoftheclass,wewillbeableto：1.

knowthefunctions,formsandsentencestructuresofthecomparativesandsuperlatives.

2.applythecomparativesandsuperlativesflexibly.

ExploreQinghai-TibetPlateauExploreChina’sotherwondersStep1Step2Step3Exploretheworld’snaturalwondersExplorenaturalwonders(a)

Itisfamousfortheworld’shighestmountain.(b)Butthisareaisalsofullofthemostamazingcoloursinnature.(c)Theplateauisquieterthanthebigcities.Readthesentencesfromthereadingpassageandsummarisethegrammarrules.5Qinghai-TibetPlateaucomparativessuperlativessuperlativesThefunctionofcomparatives.Thepartsofspeech（詞性）ofthesewordsareadjectiveandadverb.1Weusecomparativestocompare

twoitems.2Theplateauisquieterthanthebigcities.Wehavefewershopsandrestaurants.Inmyheart,it’sbetter

thananyotherplace.Thehorserunsfasterthanthecow.構成方法

原級

比較級單音節和少數雙音節單詞一般在詞尾加-erhightallhighertaller以字母e結尾的詞直接加-rfinelatefinerlater

以重讀閉音節結尾的詞，如末尾只有一個輔音字母，應先雙寫該字母，再加-erbigfatbiggerfatter以“輔音字母+y”結尾的詞，先把y變成i，再加-ereasyfunnyeasierfunnier部分雙音節和多音節單詞在單詞前加moreinterestingcomfortablymoreinteresting

morecomfortably不規則變化?good/well—better?bad?/badly—worse?many/much—morefar—farther/furtherlittle—lessTheformofcomparatives.Theplateauisquieterthanthebigcities.A+be動詞+形容詞比較級+thanBThehorserunsfasterthanthecow.A+實義動詞+副詞比較級+thanBKateworks_______thanAnn.

(hard)harderTheelephantis_______thanthemonkey.

(heavy)heavierTrytosummarisethesentencestructureofcomparativesThefunctionofsuperlatives.Thepartsofspeech（詞性）ofthesewordsareadjectiveandadverb.12Weusesuperlativestocomparethree

itemsandmorethanthreeitems.Itisfamousfortheworld’shighestmountain.Butthisareaisalsofullofthemostamazingcoloursinnature.Butwehavethebestpresentsfromnature.I’mproudtosaythatI’mfromoneofthemostbeautifulplacesintheworld.構成方法

原級

比較級單音節和少數雙音節單詞一般在詞尾加-esthightallhighesttallest以字母e結尾的詞直接加-stfinelatefinestlatest

以重讀閉音節結尾的詞，如末尾只有一個輔音字母，應先雙寫該字母，再加-estbigfatbiggestfattest以“輔音字母+y”結尾的詞，先把y變成i，再加-esteasyfunnyeasiestfunniest大部分雙音節和多音節單詞在單詞前加mostinterestingcomfortablymostinteresting

mostcomfortably不規則變化?good/well—bestbad?/badly—worst?many/much—mostfar—farthest/furthestlittle—leastTheformofsuperlatives.Try

tosummarise

thesentencestructure.High-speedtrainsrunthe

fastest.Thissupermarketis

the

best

shopping

mall

ofthree.

Thattower

is

thehighest

tower

in

thiscity.

It

isthe

nicest

park

ofthree.

Hui

noodles

arethe

mostdelicious

foodin

my

hometown.主+be動詞+the形容詞最高級（in/of…）主+v.(+the)+副詞最高級（in/of…）thesimilaritiesthedifferences適用對象變化規則比較級最高級比較級最高級適用范圍標志詞adj.

adv.兩者≥三者thanalittlealotmucheventheinofDiscusspreferences(偏好).Makecomparisons.-est-st-est雙寫，再加-estmost-er-r-ier雙寫，再加-ermore1.Hainanisaverylargeisland.Itisthesecond_________islandinChina.(large)2.Heis_________________amongus.(careful)3.LiLeijumped_________thanJim.(far)4.Thebusierheis,the_________hefeels.(happy)5.Ithinkitisoneof___________topicsamongthem.(hot)largestthemostcarefulhappierthehottestfartherExploreQinghai-TibetPlateauExploreChina’sotherwondersStep1Step2Step3Exploretheworld’snaturalwondersExplorenaturalwonders6CompletethefactsaboutwondersinChina.TheYellowRiver:5,464kmTheYangtzeRiver:6,300kmTheYellowRiveris

_______

thantheYangtzeRiver.shorter6CompletethefactsaboutwondersinChina.MountTaishan:1,532.7mMountEmei:3,079.3mMountQomolangma:8,848.86mMountTaishanishigh.MountEmeiis

_______.MountQomolangmaisthe

_______.higherhighestCompletethepassagewiththecorrectformofthewordsinbrackets.7TheQiantangRiver________(short)thantheYangtzeorYellow

rivers.Butit’sstillone

of

the___________(famous)riversinChina.It’s

famousforitstides.Usuallyit’sa______(slow)river.Butwhenthetidescome,thewaterrunsmuch______(fast).Manytidesaretwometres_______(high).Butthe

________(high)tidescanbetenmetreshigh!shortermostfamousslowfasterhighhighest8Workinpairs.Talkaboutthemostbeautifulnaturalplaceinyouropinion.UsethewordsandexpressionsfromthereadingpassageandtheUsefulexpressionstohelpyou.Usefulexpressions:·Inmyopinion,themostbeautifulplaceis...·Itisfamousfor...·Itislike...·Wordscan’texpressmylovefor...·Itisoneof...intheworld.LakeSuperiorLakeSuperioristheworld’s_______(large)freshwaterlake.LakeHuronis________(small)thanLakeSuperior.

largestsmaller單項選擇題1.Mysisteris______thanme.Shealwaysgetsbettergrades.A.smart

B.smarter

C.smartest2.Thisbookis______thanthatone.Ithasmorepages.A.thick

B.thicker

C.thickest3.Tomruns______thanJack.Heisfaster.A.quicklyB.morequicklyC.mo