初中英語八年級下冊Unit 7 What's the highest mountain in the world Section A 教學(xué)課件

Period34a-4cGrammarfocusUnit7What’sthehighestmountainintheworld?SectionAObjectivesTolearntousecomparativesand

superlativeswithadjectivesandadverbsTolearnnewwords:thePacificOcean…oceanthePacificOceann.

大海；海洋n.

太平洋WordsreviewReviewCanyoutranslatethefollowingsentences?長江大約長6,300千米。TheYangtzeRiverisabout6,300kilometers

long.ReviewCanyoutranslatethefollowingsentences?黃河長5,464千米。TheYellowRiveris

5,464kilometers

long.ReviewCanyoutranslatethefollowingsentences?明朝的長城大約有8,850千米長。TheGreatWallinMingdynastyisabout8,850kilometers

long.ReviewCanyoutranslatethefollowingsentences?珠穆朗瑪峰高8,844.43米，所以攀登起來很危險(xiǎn)。Qomolangmais

8,844.43meters

highandsoisverydangeroustoclimb.TheYangtzeRiverisabout6300kilometers

long.TheYellowRiveris

5464kilometers

long.TheGreatWallinMingdynastyisabout8,850kilometers

long.Qomolangmais

8,844.43meters

highandsoisverydangeroustoclimb.Whatcanyougetfromtheabovefoursentences?Nowlet’strytotranslatethesentencesbelow:那個(gè)籃球運(yùn)動(dòng)員有兩米高。那條河只有兩米深/寬。這棵樹有兩米高。那條河長兩千米。Thebasketballplayeristwometerstall.Theriverisonlytwometersdeep/wide.Thetreeistwometerstall.Theriverisabouttwokilometerslong.5.這座山大約有兩千米高。6.這個(gè)箱子大約有兩米高/寬/長。Themountainisabouttwothousandmetershigh.Theboxisabouttwometershigh/wide/long.GrammarFocusWhat'sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It's8,844.43metershigh.It'shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyouknowthatChinaisoneoftheoldestcountriesintheworld?Yes,Idid.It'smucholderthantheUS.Grammarfocus—What’sthehighestmountainintheworld?—Qomolangma.—HowhighisQomolangma?—It’s8,844.43metershigh.It’shigherthananyothermountain.—Whichisthedeepestsaltlakeintheworld?—TheCaspianSeaisthedeepestofallthesaltlakes.—DidyouknowthatChinaisoneoftheoldestcountriesintheworld?—Yes,Idid.It’smucholderthantheUS.大多數(shù)形容詞有三個(gè)級。1.原級:Structure:as...as...像..….一樣e.g.Timisas

tallas

Tom.2.比較級(用于兩者之間的比較):Structure：形容詞比較級＋than...e.g.Thisboxisbigger

thanthatone.形容詞和副詞的比較級和最高級3.最高級(用于三者或三者以上的比較):Structure:the+形容詞的最高級＋of/in...

e.g.Tomistheheaviestinourclass.

Heisthemostpopularinourschool.

規(guī)則變化

1)一般情況下，單音節(jié)或雙音節(jié)的形容詞/副詞比較級＋er，最高級＋est。如:clever—cleverer—cleverest

few—fewer—fewest

small—smaller—smallest等。形容詞、副詞的比較級和最高級規(guī)則變化和不規(guī)則變化2)以e結(jié)尾的詞，比較級＋r，最高級＋st

即可。如：nice—nicer—nicest

cute—cuter—cutest

large—larger—largest3)以輔音字母＋y結(jié)尾的變y為i＋er或est

如:easy—easier—easiest

happy—happier—happiest

再如：early,busy,heavy,dirty,lazy也如此。4)重讀閉音節(jié)，單輔音結(jié)尾的，雙寫這個(gè)輔音字母＋er

或

est的詞：①

fat—fatter—fattest

②thin—thinner—thinnest

③hot—hotter—hottest

④red—redder—reddest⑤wet—wetter—wettest

⑥big—bigger—biggest

5)多音節(jié)和部分雙音節(jié)的詞需要在形容詞原級前＋more構(gòu)成比較級，＋themost構(gòu)成最高級。如：beautiful－morebeautiful－themostbeautiful又如:delicious,popular,important,interesting,expensive,creative雙音節(jié)的詞如:

careful－morecareful－themostcareful

useful－moreuseful－themostuseful少數(shù)單音節(jié)詞也是這樣，如：pleased—morepleased—themostpleasedtired—moretired—the

mosttiredb)不規(guī)則變化：

good—better—best

well—better—best

bad—worse—worst

many/much—more—most

far—farther—farthest

(距離遠(yuǎn))

far—further—furthest

(程度深)old—elder—eldest

(長幼)

old—older—oldest

(年齡)三者或三者以上相比，表示最高程度時(shí)，用“the+最高級”的結(jié)構(gòu)表示。這種句式一般常有表示比較范圍的介詞短語。例如：ZhangHuaisthetallestofthethree.Heworks(the)hardestinhisclass.最高級的用法2.最高級可被序數(shù)詞以及much，byfar，nearly，almost，bynomeans，notquite，notreally，nothinglike

等詞語所修飾。例如：Thishatisbyfar／much／nearly／almost／notnearly／bynomeans／notquite／nothinglikethebiggest.Howmuchdidthesecondmostexpensivehatcoat?3.表示“最高程度”的形容詞，如excellent，extreme，perfect等，沒有最高級，也不能用比較級。4.形容詞最高級修飾作表語或介詞賓語的名詞、代詞時(shí)，被修飾的詞往往省略。e.g.Heisthetallest(boy)inhisclass.5.作狀語的副詞最高級前可以不加定冠詞。e.g.Ofalltheboyshecame(the)earliest.

比較級考點(diǎn)①比較級修飾問題

alittle,abit,even,still,much,alot,far等可修飾比較級。e.g.TomisalittletallerthanJim.

Thisbookismuchmoreinterestingthanthatone.中考鏈接②同級比較e.g.TheweatherinBeijingiscolderthanthatinXi’an.

Ourschoolisbiggerthanyours.③the+比較級e.g.Lucyisthefatterofthetwogirls.④“a/an+比較級”

表示“又一，再一”e.g.Lilyhasadoll,butshewants

abiggerone.⑤隱性比較（沒有than的情況）e.g.Whorunsfaster,LucyorLily?

You’dbettercomeearliernexttime.

Heworkedhardlastterm,butheworksevenharderthisterm.⑥越來越......

比較級+and+比較級b.the+比較級+句子，the+比較級+句子e.g.It’sgettingcolder

andcolder.

Themoreyouexercise,thebetteryouare.2.最高級考點(diǎn)說明：形容詞的最高級前必須加the；副詞的最高級前省略the。①范圍問題e.g.Tomisthetalleststudentintheclass.

Springisthebestseasonoftheyear.②“......之一”問題e.g.Beijingisoneofthebiggestcitiesintheworld.③“the+序數(shù)詞+最高級”e.g.Ithinkheisthesecondtallestboyinhisclass.3.比較級和最高級的轉(zhuǎn)換e.g.Tomisthetalleststudentintheclass.=Tomistallerthananyotherstudentintheclass.=Tomistallerthanalltheotherstudentsintheclass.=NootherstudentsaretallerthanTom.總結(jié)：①anyother+名詞單數(shù)

theother+名詞復(fù)數(shù)②否定+比較級=最高級

比較級+極限=最高級

同級比較①as+adj./adv.+ase.g.SheisasthinasLily.HewritesascarefullyasLinda.②not+as/so+adj./adv.+ase.g.Tonydidn’trunsofastasCarter.1.Ourfamilyhasboughtacarsowecantravel_____thanbefore.

mosteasily

B.lesseasily

C.easily

D.moreeasily

2.Myfathertoldmeastorylastnight.Itis____oneI’veeverheard.

thefunniest

B.funniest

C.funnier

D.thefunnier

學(xué)以致用DA3.The_____friendsyouhave,the____youwillbe.

A.more,happy

B.many,happy

C.more,happier

D.many,happier4.Whenheheardacryforhelp,heranoutas_______ashecould.hardly

B.quickly

C.finally

D.slowlyCB5.ThisplaceisnotbigenoughforLucy’sbirthdayparty.Weshouldfinda_____one.

big

B.small

C.bigger

D.smallerCFillintheblankswiththecorrectformsofthewordsinthebox.bigmuchpopularlongoldhigh1.TheAmazonRiverisoneofthe_______

riversintheworld.It’salittle_______ thantheYangtzeRiver.2.Qomolangmais8,844.43meters_____. It’soneofthemost________placesfor seriousmountainclimbers.longestlongerhighpopular4a3.Nooceanintheworldisas_____as thePacificOcean.4.AlthoughJapanis_______than Canada,itis_______smaller.bigoldermuch太平洋n.

大海；海洋Writetwocomparisonsabouttwotopics.Writetruefacts.Tworivers:_________________and___________________________________________________________________________________________________________________________________________________________________________________________TheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeRiveristhelongestriverinChina.theYangtzeRivertheAmazonRiver4bTwocities:___________and___________1._______________________________.2._______________________________.Twoanimals:___________and___________1._______________________________.2._______________________________.Writefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.Writing1._________________________________2._________________________________3._________________________________4._________________________________5._________________________________Whatisthehighestbuildinginourcity?4cExercises1.Sheis________than________.A.busier/usB.busier/weC.morebusy/usD.morebusy/we2.Janeis________thanBetty.A.lesstallerB.lesstallestC.lesstallD.notastall3.Chinais________countryintheworld.A.thethirdlargestB.thelargestthirdC.thethirdlargeD.athirdlargestBAA4.—Whichis____seasoninBeijing?—Ithinkit’sautumn.A.goodB.betterC.bestD.thebest5.—Whichis____,thesun,themoonortheearth?—Themoonis.smallB.smallerC.smallestD.thesmallestDD6.IstudyEnglishas____asmybrother.A.hardB.harderC.hardest7.Whichis____,abicycleoracomputer?A.expensiveB.moreexpensiveC.themostexpensive8.TheYellowRiverisoneof______riversinChina.A.longB.longerC.thelongestABC

3.LinTaois__________________________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）thesecondbiggest翻譯句子：同義句轉(zhuǎn)換

1.FlatAismoreexpensivethanFlatBFlatBis