Unit+1+Nature+in+the+balance+Reading【備課精講精研+能力拓展提升】高一下學期英語牛津譯林版（2020）必修第三冊

B3U1NatureinthebalanceReadingTheAmazonrainforest:anaturaltreasureStepOne:Watch&answer

StepOne:Watch&answer1.Whatcanyouseeinthisvideo?2.Whereisthisplace?Let’sreadadoucumentaryscriptabouttheAmazonrainforestandexplorethebeautyofittogether!Monkey,birds,river,forest,plants,waterfallandsoon.TheAmazonrainforest.StepTwo:InspectionalReadingPara1Readthedocumentaryscriptandwritethemainideaofeachparagraph.IntroductiontotheAmazonrainforestPlantbiodiversity：levelsoftherainforestAnimalbiodiversity：foodchainTherainforest’svaluetothehumanrace;threatstotherainforest.Para2Para3Para4Para5Size,locationandtheoriginofitsnameStepThree:AnalyticalReading86million6,40040,0001,30040020%17%PleasereadPara2-5carefullyandfillintheblanksbelow.2.What’sthefunctionofstatisticsindocumentaryscripts?StatisticsStatisticscanmakethefactsmoreconvincing,impressiveandpersuasive.1.Whatarethey?StepThree:AnalyticalReadingReadpara2carefullyandfillintheblanksbelow.locationsizeorigin8countriesandoneoverseasregionaround6millionsquarekilometresofforesttheAmazonRiver,about6,400kminlength巴西、哥倫比亞、秘魯、委內(nèi)瑞拉、厄瓜多爾、玻利維亞、圭亞那、蘇里南StepThree:AnalyticalReadingReadpara.3carefullyandfillinthemindmapaboutforest’sdifferentlevelsasystemofrootsthemassofleaflittershorterplantswithlargeleavestoweringancienthardwoodsthetopsofthetallesttreesforestLevelStepThree:AnalyticalReadingReadpara.4carefullyandcompletethefollowingchartaboutthefoodchainintherainforest.JaguarsInsectsAtleast87species,includingfrogsLeavesandfruitMicroorganismsfeedon

breakdownfeedon

feedon

StepThree:AnalyticalReadingReadpara5carefullyandfillintheblanksbelow.1.WhatmakestheAmazonrainforestanaturaltreasureaccordingtothescript?TheAmazonforestbreatheslifeintotheplanetbyfixingcarbonandproducingover20percentofalltheEarth’soxygen.Thus,itisknownasthe“l(fā)ungsoftheplanet”.Moreover,theAmazonforestisatreasurehouseofspeciesthatcanbeusedforfoodormedicine.StepThree:AnalyticalReadingReadpara5carefullyandfillintheblanksbelow.2.Whatistheforest’scurrentdanger?Yetthereisonemajordangertotheseirreplaceableplantsandanimals:us.Overthepast50years,about17%oftherainforesthasdisappearedduetohumanactivities,suchasagricultureandcattlefarming.WhilereadingBasicinformationlocationandsizeName:gettingitsnamefrom(1)________________richest(2)____________AmazonrainforestAnimalsmorethan1,300speciesofbirdsandover400speciesof(5)__________elementsofthisforest’s(6)___________Plantsmorethan40,000(3)______________different(4)_____

oftheforestSignificancefixcarbonandproducing(7)________havingspeciesusedfor(8)__________________

Dangerthemajordanger:(9)_________________disappearingduetohumanactivitiessuchas(10)____________andcattlefarmingtheAmazonriverbiodiversityplantspecieslevelsmammalsfoodchainoxygenfoodormedicineus/humanbeingsagricultureStepFour:Summary

Asthelargestforestintheworld,theAmazonrainforesthasacrucialinfluenceontheEarth’seco-balance.

Therainforestcrossesintoeightcountriesand..

ItsnameoriginatesfromtheAmazonRiver,whichisabout6,400kilometersinlength.Therearemorethan40,000plantspeciesintheAmazonrainforest..

andformsitslittleworldineachlevel.

.Allthesespeciesaretheelementsofthisforest’sfoodchain.Knownasthe“l(fā)ungsoftheplanet”,theAmazonrainforestbreatheslifeintotheplanetbyfixingcarbonandproducingoxygen.And..

However,theforestfacesamajordanger.

.coversanareaofaround6millionVariouswildlifeexistsinthedifferentlevelsoftheforestMorethan1,300speciesofbirdsandover400speciesofmammalscanbefoundheretherearemanyspeciesthatcanbeusedforfoodormedicine.Humanactivitiesdodamagetotherainforestgreatly.squarekilometersinSouthernAmericaWhilereadingA31.WhatmakestheAmazonrainforestanaturaltreasureaccordingtothescript?uniquebeautifulvaluableItcontains10%ofallknownspeciesontheEarth.Itproducesover20%oftheplanet’soxygen.Itswonderfulplantandanimalspecieshaveenabledhumanstomakeamazingdiscoveries.WhilereadingA3No.tooimportantmaintainthebalanceoftheecosystemprovidesoursocietywithfoodandmedicine2.Whatisyouranswertothequestionattheendofthescript?Supportyouropinionwithinformationfromthescriptorothersources.WhilereadingA3emphasizetheresponsibilitydutyInthesentence“Yetthereisonemajordangertotheseirreplaceableplantsandanimals:us.”(Page3,Lines33–34),why“us”isusedinsteadof“humanbeings”here?Appreciation——explorethewritingstyleB3HowdoesthedocumentaryscriptmakeclearthesizeoftheAmazonrainforestandthelengthoftheAmazonRiver?Sentencesusingcomparison:Withanareaofaround6millionsquarekilometres,theAmazonrainforestismorethan

halfthesizeofChina.TheAmazonRiver,fromwhichtherainforestgetsitsname,iscloseto6,400kilometresinlength—roughly100kilometreslongerthantheYangtzeRiver.”

Appreciation——explorethewritingstylelargenumberB3makingcomparisonswithfamiliarplacesorobjects：gainabetterunderstanding.Herearesomeexpressionsusedtomakecomparisons:

thesamesize/lengthas…aslarge/longas…morethan/largerthan/longerthan…twice/threetimesaslarge/longas…ConsolidationB31.Itwasreportedthatin2011,about34millionpeoplelivedintheAmazon.(populationofCanada:37million;populationofShanghai:24million)Itwasreportedthatin2011,about34millionpeoplelivedintheAmazon—thatisaboutCanada’stotalpopulation.Itwasreportedthatin2011,about34millionpeoplelivedintheAmazon—thatis10millionmorethanthepopulationofShanghai.Consolidation2.From2001to2012,about177,000squarekilometresoftheAmazonrainforestwerelost.(sizeofNewZealand:268,000km2;sizeofJiangsu:107,200km2)B3From2001to2012,about177,000squarekilometresoftheAmazonrainforestwerelost—thatismorethanhalfthesizeofNewZealand.From2001to2012,about177,000squarekilometresoftheAmazonrainforestwerelost—thatisabouttwicethesizeofJiangsu.Appreciation——ExploreforWritingstyle

citingexamples,listingnumbersandgivingdefinitions.

Forexample：“Morethan1,300speciesofbirdsandover400speciesofmammalshideamongthejungle’splantlife.Thisjaguarisoneexample…”“Moreover,theAmazonrainforestisatreasurehouseofspeciesthatcanbeusedforfoodandmedicine.”Whatotherwritingtechniquesareemployedinthescript?Findexamplesfromthescript.Appreciation——ExploreforWritingstyle

Exposition(explainingorprovidingreaderswithinformation)Whatisthefunctionofthosewritingtechniques?Tomaketheinformationconveyedmorepreciseandaccurate.Whatisthetypeofthescript?The_________isanaturalproperty.The_____isofoutstandingvalueforitsdiversityoflandscapesandrichbiodiversity.In______,thereareover_____plantspecies,around______mammalspeciesandmorethan____birdspecies.Alargenumberofrareanimalssuchas________canbefound.Post-readingArethereanyplacesinChinawithrichbiodiversityliketheAmazonrainforest?Whatarethey?Introduceonetotheclass.A3Languagepoints1.Whatdoyouthinkthisscriptisabout______________thetitleandpicture?從標題和圖片來判斷，你覺得這個文本是關(guān)于什么的？

judgingfrom

從……判斷，為評注性狀語，是獨立于句子之外的狀語，屬于句子狀語，但它不是修飾句子，而是說話人對句子所做的評論或解釋。e.g.

__________________________________________,youdon'tsoundwell.根據(jù)你來信中所寫的情況，你聽上去好像不大好。

judgingfromJudgingfromwhatyousaid

inyourletter2.Welcometothejungle,__________________(alotof,plentyof)green____________(befullofthingsthatarealive)thesoundsofanimals.(page2,line1)ahugeseaofalivewithTranslatethefollowingsentences.TherewasaseaoffacesineveryscenicareainChinaduringtheSpringFestival.

春節(jié)期間，中國的每個景點都是人山人海。2.Wemustfaceahugeseaoftroublesandbearthem.

我們必須面對海量的困難并忍受它們。3.Edwasalivewithhappiness.

埃德高興得眉飛色舞。4.NowonderpeoplesayAustriaisalwaysalivewiththesoundofmusic.

難怪人們說奧地利永遠充滿音樂之聲。【語境應(yīng)用】完成句子。1.Thelandis________________springsowingactivities.大地充滿了一片春耕的活氣。2.Istoodamid（在…之中）

______________corn.我站在茫茫一片莊稼之中.3.Helookeddownandsaw___________________________________.

他往下看，看到一張張笑臉。4.Thepond______________________________.池塘里都是青蛙。aseaofsmilingfaceswasalivewithfrogsalivewithaseaof3.TheAmazonRiver,fromwhichtherainforestgetsitsname,iscloseto6,400kilometresinlength—roughly100kilometreslongerthantheYangtzeRiver.(page2,lines7–9)throughwhichtowhom句中fromwhichtherainforestgetsitsname是“介詞+關(guān)系代詞”引導的非限制性定語從句，為先行項

TheAmazonriver提供補充信息，先行項和非限制性定語從句之間用逗號隔開。e.g.1.Thehouse,______________wasbuiltoverahundredyearsago,wasnotdamagedintheearthquake.2.Hestandsnearthewindow,________________________hecanseeabeautifulseasight.3.Thewoman______________________youspokeisateacher.which

4.TheAmazonrainforestcrossesintoeightcountries,includingBrazilandPeru,andoneoverseasregionofFrance,allonthesouthAmericancontinent.Withanareaofaround6millionsquarekilometers,theAmazonrainforestismorethanhalfthesizeofChina.Thepriceincludesbothhouseandfurniture.Ihateanimals,includingdogs.Ihateanimals,dogsincluded.vt.prep.adj.5.TheAmazonrainforestcrossesintoeightcountries,includingBrazilandPeru,andoneoverseasregionofFrance,allonthesouthAmericancontinent.Withanareaofaround6millionsquarekilometers,theAmazonrainforestismorethanhalfthesizeofChina.Expressionsusedtomakecomparisons:thesamesize/lengthas…morethan/largerthan/longerthan…aslarge/longas…twice/threetimesaslarge/longas…Abe+倍數(shù)+theheight/weight/length/size...ofB

Theearthis49timesthesizeofthemoon.

地球的體積是月球的9倍.

這間教室是那間教室的三倍寬。

Thisclassroomisthreetimesthewidthofthatone.②Abe+倍數(shù)+as+adj/adv+asB

Thetableisfourtimesaslongasthatone

這張桌子是那張的四倍長③Abe+倍數(shù)adj/adv比較級+thanBA比B幾倍

中國比韓國大96倍。

Chinais96timeslargerthanKorea.1.Itwasreportedthatin2011,about34millionpeoplelivedintheAmazon—thatis10millionmorethanthepopulationofShanghai.2.From2001to2012,about177,000squarekilometresoftheAmazonrainforestwerelost—thatismorethanhalfthesizeofNewZealand.3.From2001to2012,about177,000squarekilometresoftheAmazonrainforestwerelost—thatisabouttwicethesizeofJiangsu.6.Ofthe390,000plantspeciesknowntous,morethan40,000canbefoundintheAmazon.Thistallandancientbrazilnuttreeproducesnutsthatwecaneat;thesewaterliliesarebigenoughtoliedownon.Theforest’sdifferentlevelssupportanunbelievablevarietyofwildlife.Atthebottom,thereisasystemofrootsbeneaththeground.Relativepronounsintroducedbythat這就是生產(chǎn)洗衣機第那個工廠。Thisisthefactorythat

makeswashingmachine.你找到你需要的東西嗎？Haveyougotthethings(that)youneed?7.Ofthe390,000plantspeciesknowntous,morethan40,000canbefoundintheAmazon.Thistallandancientbrazilnuttreeproducesnutsthatwecaneat;thesewaterliliesarebigenoughtoliedownon.Theforest’sdifferentlevelssupportanunbelievablevarietyofwildlife.Atthebottom,thereisasystemofrootsbeneaththeground.Thehoteloffersitsguestsawidevarietyof

amusements.

avarietyof多種多樣的Therearevariouswaysofsolvingtheproblem.

variousadj.

各種各樣的Thelevelsoftolerablepainvarygreatlyfromindividualtoindividual.

varyvi.

變化，變更，改變varyfrom…to…由……到……不等varywith隨……變化【語境應(yīng)用】翻譯句子。Withthedevelopmentofeconomy,therearevariousgoodsinstores,varyingfromdailygroceriestoluxurygoods(奢侈品),whichgreatlyenrichpeople’slife.Inaddition,thegoodsvarywiththeseasoninvarietyandquantity.隨著經(jīng)濟的發(fā)展，商店里的商品種類繁多，從日常用品到奢侈品不等，大大豐富了人們的生活。此外，貨物的種類和數(shù)量也隨季節(jié)而變化?！菊Z境應(yīng)用】翻譯句子。Withthedevelopmentofeconomy,therearevariousgoodsinstores,varyingfromdailygroceriestoluxurygoods(奢侈品),whichgreatlyenrichpeople’slife.Inaddition,thegoodsvarywiththeseasoninvarietyandquantity.隨著經(jīng)濟的發(fā)展，商店里的商品種類繁多，從日常用品到奢侈品不等，大大豐富了人們的生活。此外，貨物的種類和數(shù)量也隨季節(jié)而變化。Languagepoints在這類倒裝結(jié)構(gòu)中，要注意其中的謂語應(yīng)與其后的主語保持一致。8.Abovethatisthemassofleaflitteronthedarkforestfloor.在它的上面是黑暗森林地面上的大量落葉。

介詞短語abovethat放句首，句子用完全倒裝。這樣可以保持句子平衡或使上下文銜接緊密。e.g.AmongthesepeoplewashisfriendJim.他的朋友吉姆就在這些人當中。Bythewindowsatayoungmanwithamagazineinhishand.

窗戶邊坐著一個年輕人，手里拿著一本雜志。Languagepointsmassn.alargeamountofsth.大量；許多，團；塊；堆【搭配】amassof/massesofsth大量，許多themassof………中的大多數(shù)themasses群眾e.g.Amassofsnowandrocksfallingdownthemountain

從山上滾下來的一堆積雪和石塊

Istruggledthroughthemassofpeopletotheexit.

我在人群里擠來擠去,擠到了出口處。aTVprogrammethatbringssciencetothemasses普及科學知識的電視節(jié)目

massadj.involvingorintendedforaverylargenumberofpeople大量的，大批的；民眾的e.g.amassmarketingcampaign大規(guī)模營銷活動Emailhasmademassmailingspossibleatthetouchofabutton.

有了電子郵件，點擊一個按鈕就可以群發(fā)郵件。9.

Eachleveloftheforestformsitsownlittleworld,hometodifferentkindsoflivingthings.

每一層森林都形成了自己的小世界，是各種生物的家園。living

n.

thewaythatyouearnmoneyorthemoneythatyouearn

生計;收入e.g.Whatdoyoudoforaliving?(=whatdoyoudoasajob?)你是做什么營生的？living

adj.

1)alivenow活著的；活的，做表語或前置定語e.g.thefinestlivingpianist當今的最杰出的鋼琴家2)在使用的；在實施的e.g.

alivinglanguage(=onethatpeoplestilluse)現(xiàn)用語言

lively/alive/livealive

adj.

活著的，有活力的，常作表語、后置定語或補語。

Hisgrandparentsarestillalive.（表語）

Whoisthegreatestpoetalive?（后置定語）

Intheend,twobravesoldierscaughttheenemygeneralalive.（賓補）livelyadj.活潑的，活躍的，生動的，指人或物，作定語或表語。Theyfellintoalivelydiscussionofthequestion.HerstoryaboutherlifeinAfricawaslivelyandinteresting.livev.

居??；過……的生活

adj.

活的，不指人，一般只作定語。

adj.&adv.現(xiàn)場直播，現(xiàn)場表演Thecouplearelivingapeacefullifeinthecountryside.Thisisalivetiger.Don’tgettooclosetoit.Theclubhaslivemusicmostnights.IfthematchisbroadcastliveonCCTV5,weneedn’tgotothestadium.【語境應(yīng)用】請將下列漢語句子譯成英語。北京是個生機勃勃的城市。2.沒有水，地球上將沒有生物。3.我們不知道他是否還活著。4.無論發(fā)生什么，請保持希望。Beijingisalivelycity.Withoutwater,therewillbenolivingthingsonearth.Wedon’tknowwhetherheisaliveornot.Whateverhappens,pleasekeepyourhopealive.10.Whileasignificantnumberofjaguarssurvivehere,theyareonlyone

elementofthisforest'sfoodchain.盡管相當多的美洲豹在這里生存,但它們只是這個雨林食物鏈的一個要素。引導讓步狀語從句While

heloveshisstudents,heisverystrictwiththem.Strikewhiletheironishot.Somepeoplewastefoodwhileothersarestarving.盡管當……時然而【拓展】

survive

vt.tolivelongerthansomeoneelse,usuallysomeonecloselyrelatedtoyou比…活(或存在)的時間長survivaln.

生存；幸存

survivorn.

幸存者；生還者

She____________herhusbandbytenyears.Manybirdsdidn’tsurvivetheseverewinter.Hisonlychanceof__________wasahearttransplant.Theplanecrashedinanareaofdenseofjungle.Therewereno__________.vt.toliveorexistlongerthansborsthvt.tocontinuetoliveorexistdespiteadangerouseventortime.survivedsurvivalsurvivors11.Thesefrogs,inturn,feedoninsectswhicheatleavesandfruit.相應(yīng)地,這些青蛙以昆蟲為食,而昆蟲則吃樹葉和水果。inturn1)asaresultofsth.inaseriesofevents

相應(yīng)地,轉(zhuǎn)而e.g.Increasingproductioncostswill,inturn,leadtohigherprices.生產(chǎn)成本不斷提高相應(yīng)地會引超價格上漲。2)oneaftertheotherinaparticularorder依次e.g.Therewerecheersforeachofthewomenastheyspokeinturn.女士們依次發(fā)言時，每一位都得到了喝彩。【拓展】

inone’sturn輪到某人；接著

taketurnstodosth./(in)doingsth.輪流做某事

It’sone’sturntodosth.輪到某人做某事

e.g.ItwillbeinTom’sturntobeondutytomorrow.

明天輪到湯姆值日。

Thestudentsweretakingturnsreadingaloud.

學生正在輪流朗讀。Ithinkit'sourturntodrivethekidstoschoolthisweek.

我想這周該輪到我們開車送孩子們上學了。

Filltheblankswiththewordsintheboxbelow.offdownoverinbackoutupIhaven’teventurned

Monday’sworkyet.Pleaseturnthetelevision

beforeyougotobed.Thejobturned

tobeharderthanwethought.Wearrangedtomeetat7a.m.,butsheneverturned

.Customsofficialsturnedtheman

tothepolice.Pleaseturnthevolume

.Itisalittlenoisy.Theweatherbecamesobadthattheyhadtoturn

.inoffoutupoverdownback12.

Whenajaguardies,atinyarmyofmicroorganismshelpsbreakdownitsbodyandreturnthenutrientstotheearth.當一只美洲豹死亡時，一小群微生物幫助它分解身體，并將營養(yǎng)物質(zhì)返回土壤。breakdown

1)分解；將……分成若干部分e.g.Thereportbreaksdowntheresultsregionbyregion.報告將調(diào)查結(jié)果按地區(qū)分成若干部分。2)(機器或車輛)出毛病，損壞e.g.Theircarbrokedown.他們的車子出故障了。3)(討論、關(guān)系或系統(tǒng))失敗，破裂，失靈e.g.Talkswithbusinessleadersbrokedownlastnight.

昨晚與商界領(lǐng)導人的談判破裂了。Paola'smarriagebrokedown.

Paola的婚姻破裂了。4)情不自禁地哭起來:e.g.Hebrokedownandweptwhenheheardthenews.

聽到這個消息,他不禁失聲痛哭。13.

TheAmazonrainforestbreatheslifeintotheplanetbyfixingcarbonandproducingover20percentofalltheEarth'soxygen.亞馬孫雨林通過固定碳,并產(chǎn)生超過全球總量20%的氧氣,使

得地球生生不息。breathelifeinto

給…帶來起色,注入活力e.g.Weneedsomenewpeopletobreathelifeintothisproject.我們需要一些新人來為這個項目注入活力。【語境應(yīng)用】翻譯句子。1.是讀者通過來信給報紙帶來了生氣。It

is

the

readers

who

_______________a

newspaper

with

their

letters.

2.影評家希望這位年輕導演會給法國的電影業(yè)注入新的生命。Criticsarehopingtheyoungdirectorcan__________________theFrenchfilmindustry.breathe

life

intobreathenewlifeinto14.Overthepast50years,about17percentoftherainforesthasdisappearedduetohumanactivitiessuchasagricultureandcattlefarming.在過去的50年里,由于農(nóng)耕和養(yǎng)牛等人類活動,約17%的雨林已經(jīng)消失了。

dueto:becauseof由于,

因為(常用于正式文體中)e.g.Theflightwascancelledduetobadweather.由于天氣不好,

航班被取消了。agriculture

n.

農(nóng)業(yè)；農(nóng)學；農(nóng)藝agricultural

adj.

農(nóng)業(yè)的，農(nóng)用的e.g.agriculturalpolicy/land/production/development15.Astheimpactofhumanactivitiescontinuestogrowandthelistofspeciesindangerofextinctionbecomeslonger,weareleftwithaquestion:canweaffordtodamagethe“l(fā)ungsoftheplanet”?隨著人類活動的影響不斷增加，

瀕危物種的名單越來越長，

這就留給我們一個問題：我們能承擔得起損害“地球之肺”的后果嗎？【句子結(jié)構(gòu)分析】本句是主從復合句。as引導時間狀語從句。從句中and連接兩個并列句。impactn.

1)

theeffectorinfluence作用，影響e.g.Newtechnologieswillhaveanimpactonteachingmethods新技術(shù)會對教學方法產(chǎn)生影響。2)theforceofoneobjecthittinganother

沖擊力，撞擊力撞擊；沖撞；沖擊力e.g.TheimpactoftheblowknockedJackoffbalance.

這一記猛擊把杰克打了個趔趄。impactv.有影響；沖擊impacton/upon對……產(chǎn)生影響e.g.Herfather’sdeathimpactedgreatlyon/uponherchildhoodyears.NegativeprefixesPrefixesWordsun-unbelievable,uncomfortable,unclear,uncommon,unconditionaldis-disappear,disagree,disadvantage,disappointin-/im-/il-/ir-irreplaceable,impossible,independent,illegalnon-non-smoking,non-renewable,non-profit,non-stopYouwillbe__________(able)topasstheexamifyoudon’tstudyhard.Ifsomeonedoesn’tshowgoodmannerstoothers,heis

__________(polite).Simonissucha(n)__________(honest)personthatnoonebelieveshim.Itisso__________(fair).Marygetsmoremoneyforlesswork.Theylookedpoorand__________(healthy).Wouldyouletotherpeople’s__________(sense)changeyourmood?Mostofthatmoneygoesto__________(profit)organizationsthatrunprogrammesforthepoor.Itis__________(friendly)ofhimtosaysuchbadwordstohisclassmates.unfriendlyimpolitedishonestunfairunhealthynonsensenon-profitunableFillintheblankswithwordswithnegativeprefixes.ConsolidationTranslatethefollowingsentencesintoEnglish.1.長江是世界上第三大河，它幾乎和亞馬孫河有相同的長度。(thesamelengthas)2.長江流域面積有180萬平方千米，流經(jīng)中國八個省、兩個直轄市和一個自治區(qū)。(withanareaof)3.長江在維持中國的生態(tài)平衡中扮演著重要的角色。(playasignificantrolein)4.長江維系著許多不同的生態(tài)系統(tǒng)，許多珍稀動物都能在這里找到。(avarietyof)5.然而，由于人類活動的影響，一些珍稀動物消失了。(theimpactof…)6.這些動物是不可替代的，我們應(yīng)該采取措施來保護它們。(irreplaceable)1.長江是世界上第三大河，它幾乎和亞馬孫河有相同的長度。(thesamelengthas)TheYangtzeRiveristhethirdlargestriverintheworld,whichalmosthasthesamelengthastheAmazonRiver.2.長江流域面積有180萬平方千米，流經(jīng)中國八個省、兩個直轄市和一個自治區(qū)。(withanareaof)Withanareaof180millionsquarekilometres,theYangtzeRivercrossesintoeightprovinces,twomunicipalitiesandoneautonomousregionofChina.3.長江在維持中國的生態(tài)平衡中扮演著重要的角色。(playasignificantrolein)TheYangtzeRiverplaysasignificantroleinkeepingthebalanceoftheecosysteminChina.4.長江維系著許多不同的生態(tài)系統(tǒng)，許多珍稀動物都能在這里找到。(avarietyof)TheYangtzeRiversupportsmanydifferentecosystemandavarietyofrareanimalscanbefoundhere.5.然而，由于人類活動的影響，一些珍稀動物消失了。(theimpactof…)However,becauseoftheimpactofhumanactivities,somerareanimalshavedisappeared.6.這些動物