SectionA4a-4cWhat’sthehighestmountainintheworld?Unit7LearningObjectivesStudentscanlearnaboutkeywords&phrases:ocean,thePacificOcean,as...as,anyother.Studentscanmastertheusageofsuperlatives,comparativesand“as+原級(jí)+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(xiǎn)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(shí)現(xiàn)我們的夢(mèng)想10.自然的力量takeinIt’s+adj+(forsb.)todosth.reachthetopriskone’slife(lives)challengeoneselfinthefaceofdifficultiesgiveupdoingsth.achieveourdreamstheforcesofnatureoneofthemainreasonsisthat從句Review原級(jí)比較級(jí)comparative

最高級(jí)superlative形容詞和副詞的三個(gè)等級(jí)兩者間“一樣……”兩者比“更……”三者比“最……”231形容詞，副詞的原級(jí)兩者進(jìn)行比較，表示“一方與另一方一樣……，用“as+原級(jí)+as”的結(jié)構(gòu)，否定也可用“notas/so+原級(jí)+as”的結(jié)構(gòu)。Herunsasfastasyou.他和你跑得一樣快。A+動(dòng)詞+as+副詞原級(jí)+as+B他和你一樣勤奮。Heisashard-workingasyou.A+be+as+形容詞原級(jí)+as+B英語(yǔ)不如科學(xué)那么難。Englishisnotso/asdifficultasscience.not+so(as)+原級(jí)+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(jí)和最高級(jí)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(gè)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(jí)前加more構(gòu)成比較級(jí)和most構(gòu)成最高級(jí)slowly—_____________—_______________beautiful—__________________—____________________moreslowlythemost

slowlymorebeautifulthemost

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

Myfatherisolderthanmymother.elder指長(zhǎng)幼關(guān)系（一般修飾名詞作定語(yǔ)）;Myelderbrotherisadriver.betterbestworseworstmoremostlessleastolder\elderoldest\oldestfarther（更遠(yuǎn)）further（進(jìn)一步的）farthest\furthest形容詞，副詞的比較級(jí)當(dāng)兩個(gè)人或兩件事物進(jìn)行比較時(shí)，形容詞和副詞要用比較級(jí)，也就是詞尾-er形式，比較級(jí)常常用than（標(biāo)志）來(lái)連接被比較的兩個(gè)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(jí)comparative1.A+be+形容詞比較級(jí)+than+B2.A+實(shí)義動(dòng)詞+副詞比較級(jí)+than+B2.主語(yǔ)+謂語(yǔ)+the+比較級(jí)+ofthetwo

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

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

alittle,abit（相差程度小）,等來(lái)修飾形容詞比較級(jí)。注意：比較級(jí)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(gè)遠(yuǎn)（far)去了。他比他的哥哥嚴(yán)肅多了。HecametoschoolalittleearlierthanJack.他來(lái)學(xué)校比Jack早一點(diǎn)。5.the+比較級(jí)（+名詞）+主+謂，the+比較級(jí)（+名詞）+主+謂“越…就越…”你學(xué)習(xí)越努力，你越能取得好成績(jī)。Theharder

youstudy,thebettergrades

youwillget.你吃得越多，你就會(huì)越胖。Themore

youeat,thefatter

youwillbe.Tip:此結(jié)構(gòu)在于表達(dá)前者是后者實(shí)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(jí)）＋than+B“A不如B...”Thebookislessinterestingthanthatone.這本書不如那本書有趣7.比較對(duì)象必須一致。yours相當(dāng)于yourhairMyhairislongerthanyours.形容詞，副詞的最高級(jí)形容詞、副詞的最高級(jí)用于三個(gè)或三個(gè)以上的人或事物之間的比較，常用of/in短語(yǔ)來(lái)說(shuō)明比較的范圍。superlative1.主語(yǔ)+be+the+形容詞最高級(jí)+in/of...2.主語(yǔ)+實(shí)義動(dòng)詞（+the）+副詞最高級(jí)+in/of...3.主語(yǔ)+be+oneofthe+形容詞最高級(jí)+可數(shù)名詞復(fù)數(shù)+in/of...TheYangtzeRiveristhelongestriverinChina.Tomworks(the)hardestinClass3.HangzhouisoneofthebiggestcitiesinChina.TheYellowRiveristhesecondlongestriverinChina.4.主語(yǔ)+be+the+序數(shù)詞+形容詞最高級(jí)+可數(shù)名詞單數(shù)+in/of短語(yǔ)Lucyismy/Linda’sbestfriend.Tip：當(dāng)最高級(jí)前有名詞所有格和物主代詞時(shí)，the要去掉。5.Which/Who…+最高級(jí)，A,BorC?該結(jié)構(gòu)意為“A，B，C中，哪個(gè)/誰(shuí)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(jí)句型；不同點(diǎn)：第一句比較級(jí)形式表達(dá)最高級(jí)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(jí)形式表最高級(jí)含義。（比較雙方屬于同一范圍內(nèi)）

a.比較級(jí)＋than＋anyother＋單數(shù)名詞+范圍

eg:Heistallerthananyotherboyinhisclass.

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

inherclass.

比較級(jí)形式表最高級(jí)含義。（比較雙方不屬于同一范圍內(nèi)）比較級(jí)＋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(xiàng)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(hào)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(wèn)時(shí)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(zhǎng)____________________基數(shù)詞量詞長(zhǎng)\高\(yùn)寬\深2,500metersdeep2,500metersindepth35kilometerswide35kilometersinwidth6,671kilometerslong6,671kilometersinlength如何對(duì)物體的長(zhǎng)度、高度、寬度和深度提問(wèn)？④問(wèn)深度：Howdeepis.What’sthedepthof.①問(wèn)長(zhǎng)度：Howlongis

.

What’sthelengthof.②

問(wèn)高度：Howhighis.

What’stheheightof.③

問(wèn)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(dòng)物的身高(身長(zhǎng))、體重、奔跑速度、外貌特征以及壽命等4cWritefivequestionsusingcomparisons.Thenaskyourpartneryourquestions.1.___________________________________________________2.___________________________________________________3.___________