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SectionA4a-4cWhat’sthehighestmountainintheworld?Unit7LearningObjectivesStudentscanlearnaboutkeywords&phrases:ocean,thePacificOcean,as...as,anyother.Studentscanmastertheusageofsuperlatives,comparativesand“as+原級+as”.Atthesametime,theycanusethemtocomparedifferentthings,liketwocitiesortwoanimalsindifferentaspects.1.吸入2.做某事是怎么樣……3.到達(dá)山頂4.冒著生命危險5.主要原因之一6.挑戰(zhàn)自己7.在困難面前8.放棄做某事9.實現(xiàn)我們的夢想10.自然的力量takeinIt’s+adj+(forsb.)todosth.reachthetopriskone’slife(lives)challengeoneselfinthefaceofdifficultiesgiveupdoingsth.achieveourdreamstheforcesofnatureoneofthemainreasonsisthat從句Review原級比較級comparative

最高級superlative形容詞和副詞的三個等級兩者間“一樣……”兩者比“更……”三者比“最……”231形容詞,副詞的原級兩者進(jìn)行比較,表示“一方與另一方一樣……,用“as+原級+as”的結(jié)構(gòu),否定也可用“notas/so+原級+as”的結(jié)構(gòu)。Herunsasfastasyou.他和你跑得一樣快。A+動詞+as+副詞原級+as+B他和你一樣勤奮。Heisashard-workingasyou.A+be+as+形容詞原級+as+B英語不如科學(xué)那么難。Englishisnotso/asdifficultasscience.not+so(as)+原級+as(不如…那樣)What’sthehighestmountainintheworld?Qomolangma.HowhighisQomolangma?It’s8,848.86metershigh.It’shigherthananyothermountain.Whichisthedeepestsaltlakeintheworld?TheCaspianSeaisthedeepestofallthesaltlakes.DidyouknowthatChinais

oneoftheoldestcountriesintheworld?Yes,Idid.It’smucholderthantheUS.Underlinethesuperlativesandcomparatives規(guī)則變化形容詞,副詞的比較級和最高級①直接加-er或-esttall—________—______long—_______—________tallertallestlongerlongest②以不發(fā)音的字母e結(jié)尾的單詞直接加-r或-stnice—_____—____nicernicest③以“輔音字母加y”

結(jié)尾,把y變i,再加-er或-estheavy—_______—________heavierheaviest④重讀閉音節(jié)(末尾只有一個輔音字母)雙寫輔音字母

再加-er或-estbig—_______—________biggerbiggest⑤部分雙音節(jié)詞和多音節(jié)詞

分別在原級前加more構(gòu)成比較級和most構(gòu)成最高級slowly—_____________—_______________beautiful—__________________—____________________moreslowlythemost

slowlymorebeautifulthemost

beautiful原級比較級最高級good\wellbad\badlymany\muchlittleoldfar不規(guī)則變化Tip:older一般指年齡大??;

Myfatherisolderthanmymother.elder指長幼關(guān)系(一般修飾名詞作定語);Myelderbrotherisadriver.betterbestworseworstmoremostlessleastolder\elderoldest\oldestfarther(更遠(yuǎn))further(進(jìn)一步的)farthest\furthest形容詞,副詞的比較級當(dāng)兩個人或兩件事物進(jìn)行比較時,形容詞和副詞要用比較級,也就是詞尾-er形式,比較級常常用than(標(biāo)志)來連接被比較的兩個人或事物。comparative兩者進(jìn)行比較,表示“一方比另一方更……”基本句型:A

modern

train

is

faster

than

a

car.TomjumpshigherthanJack.形容詞,副詞的比較級comparative1.A+be+形容詞比較級+than+B2.A+實義動詞+副詞比較級+than+B2.主語+謂語+the+比較級+ofthetwo

“主語是兩者中較…的一個”杰克是兄弟二人中較瘦的一個。Eg:Jackisthethinnerofthetwobrothers.3.比較級+and+比較級…

“越來越…”越來越好,越來越高越來越美麗,越來越外向betterandbetter,tallerandtaller.moreandmorebeautiful\outgoing我們的國家正變得越來越強(qiáng)大。雪正下得越來越大。Ourcountryisbecomingstrongerandstronger.Itissnowingmoreandmoreheavily.4.當(dāng)表示一方超過另一方的“程度”時,可以用much,alot,even,far,

alittle,abit(相差程度?。?等來修飾形容詞比較級。注意:比較級不能用very,so,too等修飾。Heismuchmoreseriousthanhisbrother.巧學(xué)妙記:兩多(much,alot)兩少(alittle,abit)一甚至(even),還有一個遠(yuǎn)(far)去了。他比他的哥哥嚴(yán)肅多了。HecametoschoolalittleearlierthanJack.他來學(xué)校比Jack早一點(diǎn)。5.the+比較級(+名詞)+主+謂,the+比較級(+名詞)+主+謂“越…就越…”你學(xué)習(xí)越努力,你越能取得好成績。Theharder

youstudy,thebettergrades

youwillget.你吃得越多,你就會越胖。Themore

youeat,thefatter

youwillbe.Tip:此結(jié)構(gòu)在于表達(dá)前者是后者實現(xiàn)的條件,可嘗試在寫作中使用該結(jié)構(gòu),作為亮點(diǎn)。6.less+(多音節(jié)和部分雙音節(jié)原級)+than+B“A不如B...”Thebookislessinterestingthanthatone.這本書不如那本書有趣7.比較對象必須一致。yours相當(dāng)于yourhairMyhairislongerthanyours.形容詞,副詞的最高級形容詞、副詞的最高級用于三個或三個以上的人或事物之間的比較,常用of/in短語來說明比較的范圍。superlative1.主語+be+the+形容詞最高級+in/of...2.主語+實義動詞(+the)+副詞最高級+in/of...3.主語+be+oneofthe+形容詞最高級+可數(shù)名詞復(fù)數(shù)+in/of...TheYangtzeRiveristhelongestriverinChina.Tomworks(the)hardestinClass3.HangzhouisoneofthebiggestcitiesinChina.TheYellowRiveristhesecondlongestriverinChina.4.主語+be+the+序數(shù)詞+形容詞最高級+可數(shù)名詞單數(shù)+in/of短語Lucyismy/Linda’sbestfriend.Tip:當(dāng)最高級前有名詞所有格和物主代詞時,the要去掉。5.Which/Who…+最高級,A,BorC?該結(jié)構(gòu)意為“A,B,C中,哪個/誰最……?”。Whichisthebiggest,Beijing,ShanghaiorGuangzhou?HowhighisQomolangma?It’s8,848.86metershigh.It’shigherthananyothermountain.DidyouknowthatChinais

oneoftheoldestcountriesintheworld?Yes,Idid.It’smucholderthantheUS.Comparetwosentences相同點(diǎn):兩句都是含有than的比較級句型;不同點(diǎn):第一句比較級形式表達(dá)最高級含義;第二句只是

表達(dá)兩者比較。方框中的句子有何異同?用法:比較級形式表最高級含義。(比較雙方屬于同一范圍內(nèi))

a.比較級+than+anyother+單數(shù)名詞+范圍

eg:Heistallerthananyotherboyinhisclass.

b.比較級+than+theother+復(fù)數(shù)名詞+范圍比較級+than+therestof+復(fù)數(shù)名詞+范圍eg:Sheisthinnerthantheothergirls/therestofgirls

inherclass.

比較級形式表最高級含義。(比較雙方不屬于同一范圍內(nèi))比較級+than+any+單數(shù)名詞+范圍

eg:ShanghaiismoremodernthananycityinXinjiang.1.Mybrotherhas____booksthanI.A.muchB.moreC.manyD.most2.Themoreyousmile,the_____youwillfeel.A.happyB.happierC.happilyD.morehappily3.Iknowyouareshorterthanyourbrothers,butyourun_________.A.morefaster B.fastestC.morefast D.fast4.MrSmiththoughttheCenturyParkwasthesecond_____inShanghai.A.largeB.largerC.largestD.verylarge5.

IthinkEnglishisas____asmaths.

A.important

B.moreimportant

C.mostimportant

D.importanterBBCABExercises一、單項選擇1.Ijumped______(high)thanBillinthesportsmeetinglastyear.2.Ofallthedrinks,teais_________(old)intheworld.Ithas5,000yearsofhistoryinChina.3.Mr.SmiththoughttheCenturyParkwas_______(large)thananyotherparkShanghai.4.The_______(busy)heis,the________(happy)hewillfeel.5.IthinkEnglishisas__________(important)asscience.6.Whatdoyouthinkofthedress?Wonderful.Idon'tthinkIcanfinda______(good)one.highertheoldestlargerbusierhappierimportant二、用所給單詞的正確形式填空betterExercises1.Chinais_______(large)thananyothercountryinAsia.2.Ourcityisbecomingmoreandmore_________(beautiful).3.The_____(much)wedofortheoldpeople,the_______(happy)we’llbe.4.Mybrotheristhe______(tall)ofthetwoboysinthepicture.5.Herbedroomistwice_________(big)thanmine.6.Mrs.Smithlooksmuch__________(young)withhernewhairstyle.7.Chinaisoneof__________________(ancient)countriesintheworld.8.TheYellowRiveristhesecond________(long)riverinChina.三、用括號中所給單詞的適當(dāng)形式填空tallerlargerbeautifulmorehappierlongestbiggeryoungerthemostancientHowhighisQomolangma?It’s8,844.43metershigh.1.觀察并總結(jié):8.84443metershigh______+______+_____________(long,high,wide,deep…)構(gòu)成的;提問時要用how+形容詞+謂+主。2.練一練:(1)2500米深____________________(2)35千米寬____________________(3)6671千米長____________________基數(shù)詞量詞長\高\(yùn)寬\深2,500metersdeep2,500metersindepth35kilometerswide35kilometersinwidth6,671kilometerslong6,671kilometersinlength如何對物體的長度、高度、寬度和深度提問?④問深度:Howdeepis.What’sthedepthof.①問長度:Howlongis

.

What’sthelengthof.②

問高度:Howhighis.

What’stheheightof.③

問寬度:

Howwideis.What’sthewidthof.4aFillintheblankswiththecorrectformsofthewordsinthebox.1.TheAmazonRiverisoneofthe_________riversintheworld.It’salittle________thantheYangtzeRiver.2.Qomolangmais8,844.43meters_______.It’soneofthemost__________placesforseriousmountainclimbers.3.Nooceanintheworldisas________asthePacificOcean.4.AlthoughJapanis_______thanCanada,itis________smaller.bigmuchpopularlongoldhighlongestlongerhighpopularbigoldermuch

太平洋

n.

大海,海洋Makecomparisonsaccordingtothetable.the

Nile

RivertheAmazonRivertheYangtzeRivertheYellowRiver6,671km6,480km6,300km5,464kmTheNileRiveristhelongestriverintheworld.TheAmazonRiveristhesecondlongestriverintheworld.TheAmazonRiverisalittlelongerthantheYangtzeRiver.TheNileRiverismuchlongerthantheYellowRiver.4bWritetwocomparisonsabouttwotopics.Writetruefacts.e.g.Tworivers:theYangtzeRiverandtheAmazonRiverTheYangtzeRiverisalmostaslongastheAmazonRiver.TheAmazonislongerthantheYangtze,buttheYangtzeisthelongestriverinChina.Twoanimals:_______and________1._______________________________2._______________________________Twocities:__________and___________1._______________________________2._______________________________elephantShanghaiisbiggerthanHongKongandithasalargerpopulationthanHongKong.HongKongisasmodernasShanghai.HongKongShanghailionAnelephantisbiggerthanalion.Alionisshorterthananelephant,butitrunsfasterthananelephant.策略:可以比較城市的面積、人口、歷史等策略:可以比較動物的身高(身長)、體重、奔跑速度、外貌特征以及壽命等4cWritefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.1.___________________________________________________2.___________________________________________________3.___________

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