大范围重点预测综合写作版

1231201443101520144201332012201122015是复习的重中之重，尤其是北美考题。2014和2013年的题目也可以作为重点来复习。最新TPO1-49托福模考软件免费下载【点击进入】小站托福

&IntegratedWriting–123456789讨论五大湖(thegreatlakes)windturbines3benefitscanprovewhythegreatlakesshouldbuildwindturbinestogenerateelectricity.Morejobopportunitiescouldbecreatedforthelocals,whichincreaseseconomicalbenefits.Thegreatlakesarefreshwater,whicharesuitableforturbines,andthemaintenancecostswillbelower.Buildingwindturbinestogenerateelectricitycontributestotheconservationofwaterresourcesbecausethereisnoneedtocreatemoreotherresourceswithwater.ThebenefitsmentionedinreadingarenotconvincingatItisexpensiveforthecompanytobuildthewindturbines,sothecostswillcontinuetoincreaseforalmost50years.itismoreharmfulforthemachine,anditcostsmore.Waterflownbytheturbineswillbepollutedbyakindofoil,whichlakesfordailysupply.whetherpeopleshouldprotectprairieTherearethreereasonstoillustratethebadeffectsbroughtbythoseprairieTheyareagriculturalpestsbecausetheywillcompetewithcattleforThefleastheycarrycancausebacterialProtectingthemhardlybringsbenefitstotheecosystem,soitismoreworthprotectinglargemammals.ThemessagesmentionedinthereadingareTheagriculturalpestsviewisoutdated.Ontheonehand,prairiehavechangedtheirdiets.Ontheotherhand,cattlenowfeedonspecificareas.Sothereisnocompetitiverelationbetweenthem.What’smore,theburrowingofprairiedogsdoesnotharmthegrowthofgrass,butinfactmakesthelandfertile,whichfacilitatesthegrassgotinfected.Theydogoodstotheecosystem.First,theburrowsundergroundprairiedogsbigarehabitatsofotheranimalssuchassnakes.Second,theyarealsofoodresourcesoflargeanimalssuchasfoxes.Thedisappearingofprairiesdogswillendangerthosespecies.aboutthereductionofprimarycareThereadingpointsoutthreereasonstoexplainthereductionoftheprimarycaredoctors.Studentsmajoringinprimarycarecanhardlypayofftheloansandtheyareoftenlowpaidwhentheybecomeprimarycaredoctors.PrimarycaredoctorstendtosufferfromhighstressandheavyOpportunitiestogettrainingarenotRefutethethreeexplanationsmentionedinreadingAnationalprogramcanhelptocompensatetheirloan.Accordingtothepolicy,aftertheirgraduation,studentsarerequiredtotheremoteareatopractice.Andsuchexperiencescanbeusedtocoverloans.What’smore,bydoingso,somestudentsareluckytogainscholarship.Thegovernmentwillcultivateadvanceddegreenurseswhoareabletosharesomeoftheworkloadoftheprimarycaredoctors,suchasthejobsrelatedtoprescriptionmedicationsandcaring.Unevenassigningtherecoursesresultsinunevendistributionofopportunitiestogettrained.Andthegovernmenthasrealizedthisproblemandwilltakeactionstoreassigntheresourceseverythreeyearsamongdifferenthospitals.prescribedburns3threatenthewildlifeespeciallytheyoungpollutethenaturalfireswillalso1：prescribedburnstimeplan,在animalsreproduceyoungreproduction期间的话，就本身没有youngones，matureones会remove很快。2：forestgrowthwillabsorbCO2quicklyforestsgrowfasttoabsorb3：naturalfires确实有，但是没有那么大的威力。DemonstratethreetheoriestoexplainwhybirdshavetheBirdsuseantingtoirrigateskinduringfeatherchangeinTheacidreleasedduringantingbyantscanhelpresistparasitesgrowingonbirds.AntingisawayforbirdstofeedonthoseRefutethethreeexplanationsmentionedinreadingItisjustacoincidencebetweenthetimeoffeatherchangeandbirdAntingcannotreducethegrowthofparasitesonsomeBirdswillhaveotherthingstorubthemselves,buttheydonottendtoeatthosethings.Demonstratethreenegativeeffectsofsucraloseonhuman Theimmunesystemwillbeinfluenced,whichisprovedbyexperimentconductedontheThesucralosewillreleasetoxicelementinourThesucralosecannothelptopeoplekeepshape,fortheymightbeaddictedtothiskindofsugar,soactuallypeoplemightabsorbmuchmoresugar.RefutethethreeexplanationsmentionedinreadingTheimmunesystemwillbeinfluencedonlywhensucraloseisaccumulatedinacertainamount.Thesucralosecannotbeabsorbedbyhumandigestivesystem,andthusitdoesnothavethepropersituationtoreleasetoxicfactors.Thekindofsugarwillnotbreakdownwhenheated,thusitcanbeusedtomakecakesandcookies,andbythiswaypeoplecanenjoythesugarconfectioneryaswellaskeepshape.WellnessPrograms（healthy-goalWellnessProgramsinUnitedStatesbringlotsofbenefitstocompaniesandTheprogramscanbecomeamotivationaltoolforpeopletoloseweightandquitsmoking,bringingmuchhealthierlifestyle.EmployeeswillbemoreinclinedtotakeexercisesandhavewholesomedietsthroughthemotivationoftheWellnessPrograms.Althoughtheprogrammightcostcompaniesagreatdealofmoneyatbeginning,itsavesmorecomparedtothespendingforemployees’TheprogramdoesnotTheprogrammaybeaneffectivewaytomotivateemployeesinshortterm,butitcannotkeepforalongperiod.Researchshowsthatafterseveralyears,peoplearebacktotheirbadhabits.Theprogramisnotfairforeveryemployee,becausecasesdiffer.Somewhohavetotakecareoftheirfamilyorcopewithchoresdonothaveenoughtimetoexercise,whileothersaregeneticallyfat.Companiesmightsuffergreatfinanciallossinlongterm,becausemanyemployeeswillnotstayinonecompanyforever.SendingpeopletoasteroidsforcolonizationisLowgravityintheasteroidscontributestotakingoffandlandingsafely,aswellasconsuminglessfuel.Peoplecanminevaluableandraremetalsfromtheasteroids,thustheycangainmanymoreprofits.ItiseasytoreachtheasteroidwhichisneartheRefutethethreeexplanationsmentionedinreadingThelecturerrefutesthepointbysayingthatthereliemanyrisks,forthemuscleandboneswillsufferifpeopleareunderthelowgravityforalongtime.Itcausesalargeamountofadditionalcoststoobtainthemetals.Becausetransportingthemetalstotheearthcostsmuch,andpeoplecannotguaranteewhattheyunearthisjustthemetaltheyexpect.Theasteroid’sorbitisnotregular,sowhenitmovesclosetheearththerebuitisquitehardtoreachtheasteroid.Demonstratethreetheoriestoexplainwhythenumberofyellow-leggedmountainfrogsdeclined40yearsago.Akindoffish,thetrout,wasintroducedtothisareaandthetroutatetadpolesofthefrogs.TheuseofpesticidescontaminatedtheThefrogstherewereinfectedbyafungalRefutethethreeexplanationsmentionedinreadingThetroutwasintroduced100yearsago,howeverthedeclinehappened40yearsago.Thetimedoesnotmatch.Rainfalltendstowashthepesticidestolowerandfartherplaces. bodies,sothattheycanresisttotheinfectionoffungalKingRTheownerofgraveiskingThedateofthekingR’sdeathisperfectlymatchedwiththedatefoundinthegrave.Thegraveisgrandandsplendid,showingtheownerisaparticularlypowerfulking.TherearetwospoonsshowingtheownerisaChristian,andKingRistheearliestChristianking.RefutethethreeexplanationsmentionedinreadingThedeathdateofKingRisdebatable.Somethinkthathedied25yearsearlierbeforethedatementionedinthereading.Alotofgravesareunearthedandsomeofgravesareevenstolen,whichcouldnotprovethatthegraveisgrandandsplendid.OtherChristiansmaygivethesetwospoonstoKingRasaTherearethreereasonstoexplainwhyMaryRoseThegunspotwasnotclosedaftergettingfire,buttheyforgottocloseit.Waterpouredintogunspot.SailorsdislikethecaptainanddonotfollowhisFrenchmadesignificantdamagetotheRefutethethreereasonsmentionedinreadingAccordingtoaresearch,therewerestillsomeconnonballsinthegunspot,whichprovedthatitcannotbeopened.thecaptain’sleadundersuchdangerousFrenchmentoldalieinordertoshowthattheywerepowerfulthanThreewaystopromotetheproducts’ThecompanycanlaunchnewversionunderexistingThecompanycanlaunchrelatedThecompanycancooperatewithanothercompanytoproduceThosethreewaysareTheregularcustomersmaystillprefertheoldproducts,whilenewcustomersmayfeeltheproductsisold-fashioned.Therelatedproductsmayhavebadquality,whichwillexertinfluenceonthecompany’sreputationandmakethesalesThepartnercompanymayalsothenewproduct,thusthepartnerbecomesthecompetitor.Thereare3possibleJohnMasseymightbepossible,becausehelivedinnorthwesternEngland,wherethepoemscameout,andthehandwritingsofJohnMasseyandPearlPoetarethesame.ItmightbeHugh,becausehewrotepoemsaboutGarwinandthose4famoushandwrittenpoemsarealsorelatedtoGarwin.What’smore,thepoemsalladopttherhetoricalmethodofalliteration.The4poemsmightnotbewrittenbyonepersonbecausethepoemsreferreddifferentareasinEngland.Noneofthe3hypothesesisTherewassamecopierin14thcentury.Thatiswhythehandwritingsarethesame.ItcannotbeHughbecausethedialectusedinthepoemsofPearlPoetandHughistotallydifferent.Thepoemscannotbemadebyseveralpersons,becausethewordingthe4poemsisverysimilar,whichisimpossiblefordifferent【阅读】Thehigh-speedraillinesbenefitspeopleinHigh-speedrailwaywillsavemoneyspentmaintainingtheMorecitizenswillchoosetotakehigh-speedtrain,whichcanrelievetrafficThismeansoftransportationisoneofthemostenvironmentallyfriendlyforms,becauseitisfuel-efficientwhilethetrainisrunningatahighspeed.【听力】ThebenefitsarenotasobviousasreadingComparedmaintainingtheroads,buildinghigh-speedraillinescostsmore.GovernmentinCaliforniahastoborrow100million,whichtakesup75%ofannualfinancialavenue.Itishardtopaybackalone.Whetherpeoplewillchoosetotakehigh-speedtraindependsonwhetheritisconvenientforthemtogototrainstation.Peopleneeddrivingtothetrainstationfirst,whichisnotcontributingtosolvetrafficjams.Therailwaycannotcoveralltheareas,andsomewhereinCaliforniaisspeed-limited,sothereisnothingdifferentfromregulartrains.SeveraltheoriesaboutbrochsofancientScottishbrochsgroupThreesolutionscanbeusedtolowertheeffectofwindturbinesuponThewindturbinesshouldbebuiltintheareasfarawayfromthemigratoryroutesofthebats.ThewindturbinesshouldbeturnedoffinthenightforbatsareRadarsshouldbeusedtorepelthebats,forthebatshateradarThosethreesolutionsarenotThemigratoryroutesofbatsareexactlytheplaceswherewindturbinesshouldbebuilt,foriftheyarebuiltintheremoteareas,suchasflatplain,thewindspeedwilldecline.Thoughthebatsarenotactiveinthedaytime,theywillchoosesleepontallstructures,andthetopsoftheturbinesaresuchplaces.Ifbatsmeettheelectromagneticwavesemittedbyradars,thosewaveswillprominentlyinfluencethereproductivesystemsofthebats.ThenegativesbelongtoThepinetreeinthisphotoisassameasanothertreeappearinginthephototakenbyAdam.Thenegativeisinanenvelope，whichhashiswife’sThenegativeisdamagedbyfire.ItisreportedthattheofficeofAdamoncegotfire.ThereasonsareThepinetreeinnationalparkisverypopular.Manypeoplewouldtakephotosthere,soitmaynotbetakenbyAdam.Therearesomespellingmistakes.Hiswifeisreallyfamiliarwiththatplace,soshewouldnotmakesucherrors.Thenegativescontainthechemicalsubstancewhichishighlylikelytocatchfire.Beetlesdamageashtrees,andhowtosaveashTherearethreewaystopreventbeetlesfromdamagingtheashBanningtransportationofashtrees,whichwilltakebeetle’snestsotherDrillingholesontheashtreestoinjectachemicalpesticidethatmakebeetlesleaveawayashtrees.PlantingtraptreesthatbeetlesliketolaytheireggsThethreemethodsmentionedinthereadingareofnoTheycannotprohibitprivatecompaniesthatcutdownashtreestobeDrillingtoomuchholeswilldamageashtrees.Thecycleofinjectingapesticideistwoyears.Traptreesarebeetles’food,whichwillincreasethepopulationofbeetlesandhurtmoreashtrees.preventjellyfishboomsfromThewriterputsforwardthreemethodstoaddress UsechemicalstodestroytheHarvestforhumanThegovernmentmakesstricterregulation,letting cleanballastThemeasuresareTheremainsofpolypwouldbreedthenextgenerationquickly.Besides,usingchemicalwaysmightdestroyotherspeciesinthemarineorotherOnly12kindsofjellyfishareedible.Andpeoplecanonlyeatonepercentofthem.Boatcompaniesandfishmenwillnotbewillingtodoso,foritwastesalotoftimeandhasanegativeinfluenceontheireconomicprofits.3reasonscanexplainwhytoucanevolvedaWeaponsagainstColorandshapetohidefromGetridofexcessbodyNoneofthe3reasonsaboutthebill’sfunctionisItcannotfunctionasweapons.Itismadeofhollowbonesfilledwithair,soitisthinandlightweightorelseitcannotfly.Ifitisusedasaweapon,itwillbeeasilydamagedinactivitieslikejabbing.Theyhavetocallouttoeachotherinordertousethecolorandshapetoblendintosurroundingareas.Iftheydothis,theyaregoingtodrawattentionfrompredators.Healthytoucandoesnotusetheirbills.Theyneedbilltogetridofheatinthedaytimebutatnightwhenthetemperatureislower,theydonot.Theythenneedtoretainbodyheat.AfundshouldbeestablishedtomakeregularpaymentsforReducingagriculturaldamagebypreventingfarmersfromusingforestsasfarmlandforagriculture.HelpingthehabitantslivinginthePromotingThepaymentcannotbringaboutthesetherebenefitsmentionedintheIfforestsarenotallowedtobetransformedintofarmlands,foodwillbedeficient.Inordertogeneratemorefood,intensivemethodswillbeused,thusaggravatingdamage.Thepaymentwillnotimprovetheforesthabitants’livesformoneyarefirstreceivedbylocalgovernmentandlandlordswhoarenotforestBiodiversitycannotbeimprovedforthosepaymentwillbeusedforplantationforest,man-madeone,inwhichonlytreesofgreatcommercialuseareplanted,forexample,insomeplantationforestonlytungtreesandwalnuttreesgrow.DisappearedinScotland,Netherland&TheninthlegionjoinedthebattleofScotlandandthentheywerewipedTherooftileisasymboloftheninthTheninthlegionswerewipedoutinthebattleofhelpingThereasonsareNinthlegionhad5000soldiers.Ifthejoinedthebatter,theremustbebrokenweaponsandremainedequipment,however,noremainswereBuildingrooftilerequiredkiln,buttherewasnokilninNetherland.Sorooftilemaybebroughtfromwhereverelse.Anyonecoulddothis.Theninthlegionwereinthewest,however,Judeawasintheeast.Itwasnotawisechoicetochoosetheninthlegiontojointhebattle.Ittooklongtimeandmuchmoney.TheycouldsendthetroopswhichclosertoHeinrichSchliemanndiscoveredagoldenmaskofwarriorking.HeclaimedthatthegoldenmaskistheMaskofAgamemnon.However,thearchaeologyindustrysuspectsthatthegoldenmaskisafake.TherearethreereasonsforFirstly,Schliemannhasareputationoffakinghisdiscoveryandexcavation.HeusedtobuyanantiquefromacraftsmanandclaimthattheitemisfromancientGreekuntilitwasidentifiedafake.Therefore,thegoldenmaskisverysuspiciousandSchliemannisincredible.Secondly,somefeaturesofthegoldenmaskaredifferentfromtheauthenticgoldenmasksfromAncientGreek.AncientGreekgoldenmaskshaveveryflatappearanceandnopointedhairs.ThegoldenmaskofwarriorkingdiscoveredbySchliemannhasverywell-definedlipsandpointedbeard.Therefore,thegoldenmaskisafake.Thirdly,Schliemannimmediatelyshutdownthesitewherethegoldenmaskisdiscoveredafterhefoundthegoldenmask.Thisisaverysuspiciousbehavior.Usuallyarcheologistwillcontinuetoexcavatethesiteinthehopeoffindingmoreculturalinformationaboutthediscovery,suchasthehistoricalcontextandidentifywhosemaskitis.Moreinformationaboutthemaskcouldhavebeendiscoveredtoidentifythemask,however,Schliemannclosethesiteinarush,revealinghisafraidofbeingfoundthatthemaskisafake.Thoughmanyarcheologiststhinkthegoldenmaskofwarriorkingisafake,butIthinkthatisanauthenticitemfromAncientGreek.Therearethreereasonstorefutethepointsinthepassage.Firstly,Schliemanndidhaveareputationoffakingdiscoveryandexcavation.However,forthismask,it'snoteasytofake.TheGreekgovernmentisfamiliarwithSchliemann'sreputationofdishonestyandspecificallyassignedasupervisortocloselysuperviseandmonitorSchliemann'sworkofexcavation.IfSchliemannreallycheatedonthisdiscovery,it'shardtodosowithoutbeingcaughtbythesupervisor.Secondly,agoldenmaskoflionfromAncientGreek,whichwasprovedanauthenticantique,wascomparedwiththegoldenmaskofwarriorking.Thegoldenlionmaskalsohasthree-dimensionedlipsandnose,andallpointedhair.Allthefeaturesarecomparabletothegoldenmaskofwarriorking.Thirdly,thetimingofthesitebeingshutdownimmediatelyafterthegoldenmaskwasdiscoveredcanbeexplained.Schliemannwasnotarealarcheologistbutatreasurehunter.Itfittedatreasurehunter'shabittoclosethesiteimmediatelyafterhedepletedallthevaluablethingsinthesite.Therefore,Schliemann'sbehaviorofshuttingdownthesiteisnotsuspicious.EocenewarmingCometstruckfortssideswallsmultipleentranceways,enemiesareeasytonoevidenceofwaterandwellswallsSpotblock3waitoutItwasusedtomovecommoditiesandTheroadwasbuildoutofreligiousreason,forpeoplelivinginthatareabelievedthattheirancestorswerefromthenorth.TheroadcanbeservedasthefunctionofAtthattime,theydidn’thavecarsandothertransportation,eventheydidnotuseanimal.Besides.Theroaddidnotneedtobetenmeterswide,andoneortwometerswereenough.People’sreligiousbeliefinancienttimesmaybedifferentfromthatofIfroadwasusedfordefense,therewouldbesometraces.However,wecouldnotfindsuchtrace.Furthermore,Enemiescouldtakeadvantageofroads,thusmakingtheinvasionmoreeasily.防止蝙蝠白鼻综合征(WNSSuggestionstofightWhiteNoseSyndrome(akindoffunguskilledlotsofNorthAmericanbatsinthepastfewyears)Onesuggestionisrestrictingpeopletoaccessthecaveswherebatslive,becausefunguscanbespreadcavetocavebyridingonpeople’sThesecondsuggestionisstudyingaspeciesofbatsthatisresistanttoThethirdsuggestionisheatingtheRefutethethreeexplanationsmentionedinreadingThelecturerrefutesthepointbysayingthatpeoplearenotmaintohelpspreadfungus,anditisbatsthemselvesthatspreadtheResistanceisformedduringtheprocessofcomplexbiologicalevolution.Andunderstandingtheprocessneedsdecades.However,thebatswilldieoutin10yearsifthere’snoeffectiveremedy.Batsdiebecausethefunguswakesthemupandforcesthemtofacestarvation.Ifthecavesareheated,batswillbeunabletosleepandthussufferthestarvation.ThereforethissuggestionwillmakethesituationthereasonsaboutthedeathofIchthyosaursThreepossibleTheydiedoftoxicTheystrandedinshallowTheywerepreservedinapatternbyotherThereasonsarenotThefossilsofichthyosaursshowthattheydiedindifferenttime.Somewereformedearlierthanothers.Accordingtotheseafloor,itwasdeepwaterintheatrandom.ThelawtoforbidtheimportandsellingofnonnativespeciesisSomepetownerswillbeforcedtoturntheirpetovertotheThelawistooexpensivetoimplementforitshouldexaminethousandsofnonnativespeciesinUS.It’sunreasonabletoapplyonesamestandardtoallspecies.Brazilrabbitscannotstandthecoldweatherinthenorthsotheycan’tbreed.ThatlawisworthwhiletoTheowners’petsdon’tneedtobeforfeited.Onlyimportandsellingofnonnativespecieswillberestricted.Themoneyspentincarryingoutthelawismuchfewerthanthatusedtoremovethenegativeimpactofnonnativespecies.Thoughsomeanimalcannotbreedinanothercountry,theymaycarryfatalviruswhichcanbetransmittedtootheranimals.whetherthecannedfoodisthefactorthatcontributestotheleadandthedeathofcrewinTheleadthatwascarefullystilledtothecanwouldnotcontacttheNootherevidenceofdeathofthecrewwasfoundinotherWaterpurificationsystemmaybethesourceofCompanyhaslimitedtimetofinishthiswork.Workersareundertimepressureanditisreasonablethattheyarecarelessandapplyleadtothecansinahurryway.First,itisdifficulttojudgewhethersailorsareaffectedbyleadwithoutcarefultests.Second,thesymptomsofleadpoisoningarecommon,suchasfeelingtiredorheadacheandtheycanbeeasilyoverlooked.Thewaterinthepurificationsystemisusedforshipengineeringsincethesaltwatercannotbeused.Thewaterforcookinganddrinkingcomesfromadifferentway.ThereasonthatcausesthelowproductionofrhinoinThreecausescanexplainthelowproductionofrhinoinInfertilityresultsfromthealfalfaandhayinanimalfodder,whichincreasingithormone.RhinosdevelopfootdiseaseforoftenwalkingonthehardBraindisorderinthenewbornrhinosmakesthemcannotliveThelisteningarguesagainstthethreereasonsmentionedintheInfertilitycanbecuredbyregulatingtherhino’sAdvancedradiographicimageequipmentcandetecttheearlyanomalyoftheboneandfeet,whichcanhealthefootdisease.Thereasonforthelittlerhino’sbraindisorderisthatitsmotherissooldthatitcarriestoxicchemicalelement.Solettingyoungerrhinobearchildisoneofthesolution.Fossilsofsaber-toothedcatswithbrokenbonesindicatethattheywerefedbyothersaber-toothedcatswhentheywereinjuredTherearelargenumbersofsaber-toothedcatsinthetrap.Thesaber-toothedcatshuntedtogether.ThesoundofdearsinthetrapattractedthemtofallinthetraptogetherSaber-toothedcatslivedwithotherpredatorssuchaslionsandwolves.Saber-toothedcatshavetoliveingrouptocompetewiththoseThefossilsofsaber-toothedcatswithbrokenbonesindeedindicatetheycouldsurvivewhentheywereinjured.Howeveritdoesn’necessarilymeanthattheyhavetobefedbyothersaber-toothedcats.Manypredatorscanfinddeadanimalstoeat.Sodidthesaber-toothedThelargenumbersofsaber-toothedcatsinthetrapdoesn’tmeanthattheyhunttogether.Thesaber-toothedcatshuntseparately.Oneofthesaber-toothedcatsheardthesoundofthetrappeddear,wenttothetrapandfell.Thenanothersaber-toothedcatalsoheardthesoundofthetrappeddear,cametothetrapandfellagainSaber-toothedcatswerelargepredators.Taketigersforexample,onetigerisstrongenoughtofightagainstthesocialpredatorssuchaslionsandwolves.Sothesaber-toothedcatsdon’thavetolivetogethertocompetewithlionsandwolves.更老实，smallbonobo有保护的sociallawbonobo不能欺负小的bonobo。chimpanzee会huntkillbonobo们只吃nuts和plants。究人员都去观察chimpanzee了所以没有发现。因为人类行为影响到了chimpanzee的素食来源，所以它们才去huntkillbonobohabitat现代蜜蜂的巢都有个盖子cap，nonfloweringplantsbee一样呢？WhetherthedecliningofbisonwascausedbytheEuropeanAboutbison,akindofanimal,somethinglikecattleorhorse.ThepassagesuggeststhatthedecliningbisonwasduetotheEuropeanAmerican1.WhenEuropeanAmericancrossprairies,theyhuntedbisonasfoodbecausethereisnofoodinprairies.Theybroughtcattleandhorses,whichcompetedwithbisonforTheevolvingtechnology,especiallyguns,lethunterskillseveralbisonashortTheprofessorcontradictseachofthesethreeTheEuropeanAmericanmovedfromeasttowest,butthebisondeclineinthewesternpartofAmerica.ThepatternofhowbisondisappearedgraduallywasdifferentfromthatofmovementofEuropeanAmerican.Bisonhavedoublefurscoveringtheirbodiesanduniqueheadstructure,whichallowthemtoliveinharsherandcolderareas.Theareaswereunreachableforcattleandhorses.Howcoulddifferentspicescompetewitheachotherinseparateterritories?Theadvancedtechnologyshouldnotbeblameworthyforthedecreasingbison.Theancientmethodsareaseffectivelyasguts.SkilledancientAmericanhunterscouldkillseveralbisonwithshortintervals.OysterdiseaseAgriculturalsubsidiesLowerthepriceofSolvetheissueofworldEnsurejobProtectionagainstcold(losingProtectionagainstfungalsporesinfection,blockoutwatersoinsectshavemeaningsoffungalinfection.Eliminatenighttimelight,inordertotrackuptotheregulartimetoproduceflowers.Theplantshavenosourceofinternalheating,sowhetherfoldingunfoldingsufferthesamefreezingEventhoughtheplantsarefolding,theycannotblockoutallthewaterandfungalsporesonlyrequireafewwater.Someplantsindenselyshadedareawherenolightisreachingstillfoldtheirleaves,thereforesomeotherreasonsmayexplain.ThreetheoriestoexplainhowtheMimaMoundisMimaMoundswereformedbyhumanlaborbecausetheywerearrangedinorder.MimaMoundswerecausedbyearthquake. Aftershaking,thelandbecomeslooseandreshapetotheMimaMound.BuildbypocketgophertobuildThesethreetheoriesareallunconvincingatItcannotbecreatedbyhumanlaborbecausetherearenohumanactivitiesandremainstosupportthetheory.EarthquakeisimpossibletotakeplaceinwhereMimaMoundexisted.Besides,therewerenoenoughearthquaketoloosenthesoil.Therearegophersnowadays,butnonewMimaMoundshavebeenThreereasonstoexplainwhyPterosaurscannotPterosaursarecool-blooded,thuscannotproduceenoughenergytoPterosaursaretooweightytotakeofffromPterosaurshaveadifferentmusclefromthatofbirds.TheirbackmusclesaretoosmallandExplainthreereasonstocontradictwithPterosaurscanactuallybeconsideredaswarm-blooded,sincetheyalwayshavedensecoveringhair.ThebonestructureofPterosaursisdifferent.Itishollownot3.Pterosaursaredifferentfrombirdsinthattheystandwithfourlimbswhilebirdswithtwolimbs.AndPterosaursarejustlikebatswhichcanpushofftheground.stopthedeclineoffrogpopulationProvidethreemethodstothedeclineofProhibitionofusingpesticidescanrelievethisImplementthelarge-scaleofControlthedeclineofwaterThesemethodsareineffectiveandItisnotfinanciallyeconomical.Farmerswillsuffermore,iftheydonotusepesticide.Thistreatmenthastoapplytoeachfrog,andpeoplewouldbeeasilygetinfected.Thiswayisexpensiveandhardtoimplement.Itisnothumanactionthatleadstothedeclineofwaterhabitats,butglobalwarming.Eventhoughhumanactionsarecontrolled,itcannotsolvethewholeproblem.bone&skullAtlanticocean他们各自发展了spearpoint来hunt。skullboneWhyerdstalls(tunnelsystens)wereShelterlivestocksinwinterandstoreHidingplaces(fromReligiouspurpose(residentsbelieveinsoulsandErdstallsgetrainfallsinwintersoimpossibletoshelterlivestocks,andnotrendsofgrainsandothercropsshown.Toosmalltocontainevenafamily,easytorunoutofoxygen,eachhasonlyoneentrancewhichisimpossibleforpeopletoescape.Peopleall sharethe samereligiousbelief,however, communitiesbuiltErdstallswhileotherdidn't.讨论一种鲸鱼的角的用途(NarwhalThreetheoriestoexplainwhatthetuskNarwhallivesinArcticOcean,wheremanyicesheetsfloatingthere.Theyneedtopiercetheseicesheetswiththeirtusksforbreathingfreshair.Narwhals’tusksarethetoolsthathelpthemaleNarwhaltofightotherstowinitsMillionsofmicroscopicporesontusksareusedassensorstodetecttheoceanenvironment.ThefunctionoftuskcannotbesimplyexplainedbythesethreeItisimpossibletopenetrateicesheetsbecausetheyare750pxthick.Thephenomenonthatreadingmentionedmightbecausedbecausethoseicesheetshavebrokenbefore.Themisunderstandinginreadingcausedbydistantobservation,whilecloseobservingindicatesthatitisgentlecommunication.ThephenomenondescribedinreadingpassagecannotexplainthefemaleNarwhalliveslonger,butfewfemaleNarwhalowntectcoralreeflionfishcoralreef引进市场会导致有人人工养殖。lionfish会从fishfarm严重的invasive问题。教授说有些lionfish是有毒的，吃了以后会造成vomiting，numbness，arching，我们无法检验每一条鱼所以吃他们不安全。Phoenicianshadnotbeensenttosailaroundthe埃及统治者对航海没有兴趣,国王也没有理由去雇佣sailorsPhoenicianssailsimpletrad