英語Unit6NurturingnaturePeriod1素養(yǎng)課件

Unit6NurturingnaturePeriod1

Startingout&Understandingideas語篇研讀課自主素養(yǎng)儲(chǔ)備Ⅰ.新詞相知(一)連線相匹配的英語釋義。【答案】eafbgcdmassivedelicatesplendidleisureradiationmirror-likewandera.havingafinestructurethatiseasilydamagedorbrokenb.thetimewhenyouarenotworkingorarenotbusyc.likeamirrord.togosomewhereataleisurelypacee.large,solid,andheavyf.seemstobeimpressiveandbeautifulg.energyemittedfromasourceintheformofraysorwaves,e.g.heat,light,orsound(二)結(jié)合語境,從上面的表格中選擇恰當(dāng)?shù)膯卧~填空。1.Itissaidthatmobilephone________maycausebrainillness.2.Letusworktogetherforamore________future.3.A_______populationstillhashealthproblems.4.Hedidnothingbut_______onthestreet.radiationsplendidmassivewanderⅡ.短語熟記選擇恰當(dāng)?shù)亩陶Z補(bǔ)全下列語境。atone’sleisure,allow...to,inorderto,locatedat,makesure,thanksto1.Please_____me__expresshowmuchIappreciateyourhelp.2.__________thebottomoftheCD,theword“Microsoft”isprinted.

3._________theInternet,it’seasytocomparepricesforeverything.

4.Healwaysplaysit___________orbeforesleepeveryday.

5.__________dohisscientificexperiment,Edisonhadtoworkattheageofhisteens.

6.Wehavetofindmorewaysto_________wehaveroomtooperate.

allowtoLocatedatThankstoathisleisureInordertomakesure課文淺觸1.閱讀The

Sky

Railway,思考你對這個(gè)標(biāo)題的理解。2.WhyistheQinghai-TibetRailwaycalledtheSkyRailway?_______________________________________________________________________________________________________________________________________

Becauseitisa“impossible”railwayintheworldwiththecaretheenvironmentdeservesandarecordtoovercomethemostdifficultengineeringchallenges.Step1

WhilereadingⅠ.Findtheanswerstothequestionsintheform.探究素養(yǎng)提能Whytherailwayisparticularlyspecialtotheauthor?Hewastravellingalongtherailwaythatmanyforeignexpertsclaimedwas1.“__________”Hewasoneofthepeoplewho2._______onthisrailwayTheunforgettableexperienceofthebuildingworkofthisrailwayThe3._______andthepassagesThebuildingofthe4._______railwaystationThe5.____fortheplantsandanimalsimpossibleworkedbridgeshighestcareⅡ.Choosethebestanswer.1.WhichisthefirststationoftheQinghai-TibetRailway?A.Qinghai.

B.Tibet.

C.Xining.

D.Lhasa.2.Whichofthefollowingisnotmentionedinthepassage?A.Theeffortstoovercomethemostdifficultengineeringchallenges.B.Howtoprotectthedelicateecosystem.C.Thegreatestchallengesforrailwayworkers.D.Thecostofbuildingtherailway.答案:1～2.CDⅢ.Answerthefollowingquestions.1.Whatdoesthetitle“TheSkyRailway”mean?______________________________________________________________________________

2.WhyistheQinghai-TibetRailway“impossible”?_______________________________________________________________________________________________________

ItisasongwhichrepresentstheQinghai-TibetRailwayandtheimportanceofitsbuilding.Becauseittookyearstoovercomesomanydifficultengineeringchallengesandprotectedthedelicateecosystemaswell.Ⅳ.Sentenceexplanation.Sittingbackinmyseat,Ican’tquitebelievethatI’mabouttotravelalongtherailwaythatmanyforeignexpertsclaimedwas“impossible”.分析:本句包含一個(gè)賓語從句和定語從句。Sittingbackinmyseat,Ican’tquitebelieve非謂語動(dòng)詞thatI’mabouttotravelalongtherailwaythat賓語從句定語從句manyforeignexpertsclaimedwas“impossible”.插入語句意:坐在我的座位上,我還是不能相信我將沿著許多外國專家認(rèn)為“不可能”的鐵路旅行。Step2

Post-readingSupposeyouareatraveler,trytotellthejourneyalongtherailway.

SinceourtrainleftXining,thesong“SkyRailway”hasbeenplaying1._____________.Thefirstlandmarkto2.___________isthesplendidQingshuiheBridge,theworld’slongestbridge3._________permafrost.IcanseemanywildanimalssuchastheTibetanantelopesmovingintheir4._____________.TanggulaStation,thehighestrailwaystationintheworld,is5._________over5,000metres6._____________.CuonaLakeissoclosetotherailwaythatIinsidemyheadcatchmyeyebuiltovernaturalhabitatlocatedatabovesealevelwanttoreachoutandtouchitspaleblue7.__________surface.Thankstoourcountryandtherailwayworkers,Icanenjoythese8._________________intheQinghai-TibetPlateau.

mirror-likemagicallandscapesPre-readingHeaven

RoadEarlymorningstandingonthegreenranchIcaughtsightofeaglesinthesunglowFlyingacrosstheblueskylikeanauspiciouscloudAndbringingauspiciousnesstotheTibetansonsanddaughtersIt’sreallyamagicalheavenroadBywhichtheterrestrialwarmthissenttothefrontierFromnowonthemountainsseemnotsohighandtheroadsnotsolongChildrenofallethnicgroupsgathertogetherhappilyAtduskstandingonthehighhillIsightedtherailwaybuiltstretchingtomyhometownLikedragonsclimbingovermountainsandmountainsItbringspeaceandhappinesstothesnowyplateauIt’sreallyamagicalheavenroadTakingustotheparadiseonearthHighlandbarleywineandbutteredteawillbemorearomaticandsweeterSongsofhappinesswillspreadalloverthelandHaveyoueverheardaboutthissong?Ⅰ.Answerthefollowingquestions.1.Q:Howmanypartsdoesthepassagecontain?A:_____2.Q:Whatisthetopicofthepassage?A:The____Railway—the_____________Railway.Two.SkyQinghai-TibetⅡ.Fillintheformbelow.ThetravelalongtheSkyRailwayThetrainhasbeenracingalongsteadilysinceitleft1.______.The2.________QingshuiheBridgeThe3._______TanggulaStationTheCuonaLakewithapaleblue4.__________surfaceXiningsplendidhighestmirror-like【主題情境思考】Supposeyouareanofficialofawildanimalnaturalreserve,whatcanyoudotoprotectthenaturalhabitatinthearea?

______________________________________________________________________________________________________________________________________________________________________________________________________________________________________Asanofficialofawildanimalnaturereserve,IshouldprotecttheenvironmentasmuchasIcan.Iwilladviseeveryorganizationtoavoidfurtherdestructionofbiodiversityandnaturallife.Atthesametime,Iwillseedmoretreestoreplantforestsandbarrenmountains.

閱讀理解

Howdoesanecosystem(生態(tài)系統(tǒng))work?Whatmakesthepopulationsofdifferentspeciesthewaytheyare?Whyaretheresomanyfliesandsofewwolves?Tofindananswer,scientistshavebuiltmathematicalmodelsoffoodwebs,notingwhoeatswhomandhowmucheachoneeats.課時(shí)素養(yǎng)達(dá)標(biāo)Withsuchmodels,scientistshavefoundoutsomekeyprinciplesoperatinginfoodwebs.Mostfoodwebs,forinstance,consistofmanyweaklinksratherthanafewstrongones.Whenapredator(掠食動(dòng)物)alwayseatshugenumbersofasingleprey(獵物),thetwospeciesarestronglylinked;whenapredatorlivesonvariousspecies,theyareweaklylinked.Foodwebsmaybedominatedbymanyweaklinksbecausethatarrangementismorestableoverthelongterm.Ifapredatorcaneatseveralspecies,itcansurvivetheextinction(滅絕)ofoneofthem.Andifapredatorcanmoveontoanotherspeciesthatiseasiertofindwhenapreyspeciesbecomesrare,theswitchallowstheoriginalpreytorecover.Theweaklinksmaythuskeepspeciesfromdrivingoneanothertoextinction.Mathematicalmodelshavealsorevealedthatfoodwebsmaybeunstable,wheresmallchangesoftoppredatorscanleadtobigeffectsthroughoutentireecosystems.Inthe1960s,scientistsproposedthatpredatorsatthetopofafoodwebhadasurprisingamountofcontroloverthesizeofpopulationsofotherspecies—includingspeciestheydidnotdirectlyattack.Andunplannedhumanactivitieshaveprovedtheideaoftop-downcontrolbytoppredatorstobetrue.Intheocean,wefishedfortoppredatorssuchascodonanindustrialscale,whileonland,wekilledofflargepredatorssuchaswolves.Theseactionshavegreatlyaffectedtheecologicalbalance.Scientistshavebuiltanearly-warningsystembasedonmathematicalmodels.Ideally,thesystemwouldtelluswhentoadapthumanactivitiesthatarepushinganecosystemtowardabreakdownorwouldevenallowustopullanecosystembackfromtheborderline.Preventioniskey,scientistssay,becauseonceecosystemspasstheirtippingpoint(臨界點(diǎn)),itisremarkablydifficultforthemtoreturn.1.Whathavescientistsdiscoveredwiththehelpofmathematicalmodelsoffoodwebs?A.Thelivinghabitsofspeciesinfoodwebs.B.Therulesgoverningfoodwebsoftheecosystems.C.Theapproachestostudyingthespeciesintheecosystems.D.Thedifferencesbetweenweakandstronglinksinfoodwebs.2.Astronglinkisfoundbetweentwospecieswhenapredator_______.

A.hasawidefoodchoiceB.caneasilyfindnewpreyC.stickstoonepreyspeciesD.canquicklymovetoanotherplace3.Whatwillhappenifthepopulationsoftoppredatorsinafoodwebgreatlydecline?A.Thepreyspeciestheydirectlyattackwilldieout.B.Thespeciestheyindirectlyattackwillturnintotoppredators.C.Thelivingenvironmentofotherspecieswillrema