【文档说明】《Unit 7 What’s the highest mountain in the world Section A》教案设计2-八年级下册新目标英语【人教版】.doc，共(6)页，41.000 KB，由小喜鸽上传

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SectionA3(Grammarfocus—4c)Grammarfocus—What’sthehighestmountainintheworld?—Qomolangma.—HowhighisQomolangm

a?—It’s8,844.43metershigh.It’shigherthananyothermountain.—Whichisthedeepestsaltlakeintheworld?—TheCaspianSeaisthedeepestofallthes

altlakes.—DidyouknowthatChinaisoneoftheoldestcountriesintheworld?—Yes,Idid.It’smucholderthantheUS.Step1

Lead-inPlayavideo:ThemorewegettogetherAndthenshowsomepictures.ReviewcomparativesandsuperlativesStep2Grammar形容词和副词比较级和最高级变化规则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...Heistallerthan

I.他比我高。3)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。Heisthefunnie

stinhisclass.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。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－clev

erer－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－easiesthappy－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－hottestred－redder－reddestwet－wetter－wettes

tbig－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,inte

resting,expensive,creative等双音节的词如:careful－morecareful－themostcarefuluseful－moreuseful－themostuseful少数单音节词也是这样，如：pleased－moreplease

d－themostpleasedtired－moretired－themosttired2.不规则变化：good—better—bestwell—better—bestbad－worse－worstmany/much—mo

re—mostfar—farther—farthest(距离远)far—further—furthest(程度深)old—elder—eldest(长幼)old—older—oldest(年龄)Readthes

entencesbelow.—What’sthehighestmountainintheworld?—Qomolangma.—HowhighisQomolangma?—It’s8,844.43metershigh.It’shigherthananyother

mountain.—Whichisthedeepestsaltlakeintheworld?—TheCaspianSeaisthedeepestofallthesaltlakes.—Didyouknowthat

Chinaisoneoftheoldestcountriesintheworld?—Yes,Idid.It’smucholderthantheUSStep2中考链接1.比较级考点①比较级修饰问题alittl

e,abit,even,still,much,alot,far等可修饰比较级。e.g.TomisalittletallerthanJim.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’dbettercomeearli

ernexttime.Heworkedhardlastterm,butheworksevenharderthisterm.⑥越来越......a.比较级+and+比较级b.the+比较级+句子，the+比较级+句子a.e.g.It’sgettingcolderand

colder.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the。①范围问题e.g.Tomisthetal

leststudentintheclass.Springisthebestseasonoftheyear.②“......之一”问题e.g.Beijingisoneofthebiggestcitiesintheworld.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.=Tomistallerthananyothe

rstudentintheclass.=Tomistallerthanalltheotherstudentsintheclass.=NootherstudentsaretallerthanTom.总结：①anyother+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2.同级比较①as+adj./adv.+ase.g.SheisasthinasLily.HewritesascarefullyasLinda.②not+as/so+adj./adv.+ase.g.Tonydid

n'trunsofastasCarter学以致用1.Mybrotheris___moreoutgoingthanme.A.manyB.littleC.much2.October12thwasoneof______daysin2005.Shenzhou-VIwaslaunch

ed(发射）successfully.A.excitingB.moreexcitingC.themostexciting3.Whichcityis______,Beijing,ShanghaiorFuzhou?A.beautifulB.morebeautifulC.themostbeau

tiful4._____childrenthereareinafamily,____theirlifewillbe.A.Theless,thebetterB.Fewer,richerC.Thefewer,thebetter5.Mobilephonesareverypopularnowan

dtheyare______thanbefore.A.cheapB.cheaperC.thecheapest6.Inourcity,it’s_____inJuly,butit’seven_____inAu

gust.A.hotter,hottestB.hot,hotC.hot,hStep3Fillintheblankswiththecorrectformsofthewordsinthebox.bigmuchpopularlongoldhighStep4Writetwocomparis

onsabouttwotopics.Writetruefacts.e.g.Tworivers:theYangtzeRiverandtheAmazonRiverTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislonger

thantheYangtze,buttheYangtzeRiveristhelongestriverinChina.Twocities:___________and___________1.____________________________________________________

___________.2._______________________________________________________________.Twoanimals:___________and___________1._________________________________

_____________________________.2.______________________________________________________________.Step5HomeworkWritefivequestionsusingcomparis

ons.Thenaskyourpartneryourquestions1.Whatisthehighestbuildinginourcity?2.Whatisthebusiestsubwaystationinourcity?

3.Whatisthelargestshoppingmallinourcity?4.Whichisthebiggestparkinourcity?5.Whichisthelongestroadinourcity?