【文档说明】《Unit 7 What’s the highest mountain in the world Section A Grammar》教学课件5-八年级下册新目标英语【人教版】.ppt，共(34)页，7.998 MB，由小喜鸽上传

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Unit7EnjoyasongThemorewegettogether.Jim---youngKate---youngerbaby---youngestyoung—younger—youngestnice—nicer—nicestDescribethepicturesbelow.heav

yheavy---heavier---heaviestlovelylovely---morelovely---mostlovelyfamousMr.Cuifamous---morefamous---mostfamous形容词和

副词的比较级和最高级1.大多数形容词有三个级。1)原级:常用结构as...as...像„„一样ZhangHongisastallasTom.张红和汤姆一样高。2)比较级(用于两者之间的比较)常用结构：形容词比较级＋than...Heistallertha

nI.他比我高。Grammar3)最高级(用于三者或三者以上的比较),常用结构:the+形容词的最高级＋of/in...Heisthetallestofthethree.他是这三个人中最高的。Heisthefunniestinhisclass.他是他们班最有趣的。2.形容词、副词比较级和最高级

规则变化和不规则变化。a)规则变化1)一般情况下，单音节或双音节的形容词（或副词）比较级＋er，最高级＋est如：clever－cleverer－cleverestfew－fewer－fewestsmall－smaller－smallest等。2)以e结尾的词，比较级＋r，

最高级＋st即可。如：nice－nicer－nicestcute－cuter－cutestlarge－larger－largest3)以辅音字母＋y结尾的变y为i＋er或est如:easy－easier－easies

thappy－happier－happiest再如：early,busy,heavy,dirty,lazy也如此。4)双写最后一个辅音字母＋er或est的词,同学要用心去记。fat－fatter－fattestthin－thinner－thinnesthot－hotter－h

ottestred－redder－reddestwet－wetter－wettestbig－bigger－biggest5)多音节和部分双音节的词需要在形容词原级前＋more构成比较级、＋themost构成最高级。

如：beautiful－morebeautiful－themostbeautiful又如:delicious,popular,important,interesting,expensive,creative等双音节的词如:care

ful－morecareful－themostcarefuluseful－moreuseful－themostuseful少数单音节词也是这样，如：pleased－morepleased－themost

pleasedtired－moretired－themosttiredb)不规则变化：good—better—bestwell—better—bestbad－worse－worstmany,much—more—mostfar—farther—farthest(距离远)far—furt

her—furthest(程度深)old—elder—eldest(长幼)old—older—oldest(年龄)—What’sthehighestmountainintheworld?—Qomolangma.—HowhighisQomolangma?—It’s8

,844.43metershigh.It’shigherthananyothermountain.Readthesentencesbelow.—Whichisthedeepestsaltlakeinthewo

rld?—TheCaspianSeaisthedeepestofallthesaltlakes.—DidyouknowthatChinaisoneoftheoldestcountriesintheworld?—Yes,Idid.It’smuch

olderthantheUS.1.比较级考点①比较级修饰问题alittle,abit,even,still,much,alot,far等可修饰比较级。e.g.Tomisalittletallerthan

Jim.Thisbookismuchmoreinterestingthanthatone.②同级比较e.g.TheweatherinBeijingiscolderthanthatinXi’an.Ourschoolisbiggerthanyours.③the+比较级

e.g.Lucyisthefatterofthetwogirls.④“a/an+比较级”表示“又一，再一”e.g.Lilyhasadoll,butshewantsabiggerone.⑤隐性比较（没有than

的情况）e.g.Whorunsfaster,LucyorLily?You’dbettercomeearliernexttime.Heworkedhardlastterm,butheworksevenharderthisterm.⑥越来越......a.比较级+and+比较级b.t

he+比较级+句子，the+比较级+句子a.e.g.It’sgettingcolderandcolder.Themoreyouexercise,thebetteryouare.2.最高级考点说明：形容词的最高级前必须加the；副词的最高级前省略th

e。①范围问题e.g.Tomisthetalleststudentintheclass.Springisthebestseasonoftheyear.②“......之一”问题e.g.Beijingisoneofthebigg

estcitiesintheworld.③“the+序数词+最高级”e.g.Ithinkheisthesecondtallestboyinhisclass.3.比较级和最高级的转换e.g.Tomisthetalleststudentintheclass.=Tomistaller

thananyotherstudentintheclass.=Tomistallerthanalltheotherstudentsintheclass.=NootherstudentsaretallerthanTom.总结：①anyot

her+名词单数theother+名词复数②否定+比较级=最高级比较级+极限=最高级同级比较①as+adj./adv.+ase.g.SheisasthinasLily.HewritesascarefullyasLinda.②not+as/so+adj./

adv.+ase.g.Tonydidn’trunsofastasCarter.1.Mybrotheris___moreoutgoingthanme.A.manyB.littleC.much2.October12thwasoneof______daysin2005.Shenz

hou-VIwaslaunched(发射）successfully.A.excitingB.moreexcitingC.themostexciting3.Whichcityis______,Beijing,ShanghaiorFuzhou?A.beautifulB

.morebeautifulC.themostbeautiful4._____childrenthereareinafamily,____theirlifewillbe.A.Theless,thebetterB.Fewer,richerC.The

fewer,thebetter5.Mobilephonesareverypopularnowandtheyare______thanbefore.A.cheapB.cheaperC.thecheapest6.Inourcity,it’s____

_inJuly,butit’seven_____inAugust.A.hotter,hottestB.hot,hotC.hot,hotter4aFillintheblankswiththecorrectformsof

thewordsinthebox.bigmuchpopularlongoldhigh1.TheAmazonRiverisoneofthe______riversintheworld.It’salittle_____

___thantheYangtzeRiver.2.Qomolangmais8,844.43meters_______.It’soneofthemost_______placesforseriousmountainclimbers.longestlongerhi

ghpopular3.Nooceanintheworldisas________asthePacificOcean.4.AlthoughJapanis_________thanCanada,itis_________smaller.bigmuc

hpopularlongoldhighbigoldermuch4bWritetwocomparisonsabouttwotopics.Writetruefacts.Twocities:___________a

nd___________1.___________________________________2.________________________________________________________________________theYangtzeRivertheA

mazonRiverTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeisthelongestrive

rinChina.BeijingNanjingBeijingisasmodernasNanjing.BeijingisbiggerthanNanjingandhasalargerpopulationthanNanjing.e.g.Tworiver:____________and__

___________________________________________________________________________________________________________________________Twoanimals

:___________and_________1.___________________________________2.__________________________________________________

______________________MonkeyDogAdogisbiggerthanamonkey.Amonkeyissmallerthanadog,butitclimbsatreefasterthanadog.4cW

ritefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.1._____________________________________2.__________________________

___________3._____________________________________4._____________________________________5.____________________________

_________Whatisthehighestbuildinginourcity?Whatisthebusiestsubwaystationinourcity?Whatisthelargestshoppingmallinourcit

y?Whichisthebiggestparkinourcity?Whichisthelongestroadinourcity?