Unit+5+Revealing+nature+Vocabulary+ +Starting+out 高二英语外研版（2019）选择性必修第一册

Vocabulary&StartingoutUnit5Revealingnature1.LearnthewordsofUnit5.2.Understandtheimportanceofnature,andthinkabouthowtoprotectournature.英译汉1.seed2.disgrace3.geologist4.sample5.ancestor6.characteristic7.worldwide8.giant9.myth10.legend11.cybercrimen.种子，籽n.丢脸，耻辱n.地质学家n.样本n.(动物的)原种，祖先n.特征，特性adv.遍及全世界adj.巨大的，特大的n.(古代的)神话n.传说，传奇n.网络犯罪Activity1

Importantwords.汉译英12．遥远的

adj.13．进化

v.14．猜想，怀疑

v.15．产生，创造

v.16．减少

v.17．责怪，指责

v.18．原始的，低等的

adj.

19．发现，察觉

v.20．把……联系起来；连接

v.

distantevolvesuspectgeneratedeclineblameprimitivedetectlinkActivity2

Importantphrases.1．源于……的，原产于……2．挤满3．适应4．各种各样的，种类繁多的5．是……的栖息地/家乡6．追溯到7．完成(任务)；执行；实施8．answerthecall9．beadisgrace10．inquestionbenativetobecrowdedwithadapttoavarietyofbehometodatebacktocarryout响应号召是耻辱，是丢脸的事讨论(议论)中的1．Whatarethey?BeforeyouwatchKomododragon(科莫多巨蜥)Duck­-billedplatypus(鸭嘴兽)Nautilus(鹦鹉螺)OriginKomododragonswerefirstencounteredbyWesternresearchersin1910whosaidtheancestoroftheKomododragonmostlikelyevolvedinAustraliaandspreadwestward,reachingtheIndonesianislandofFlores900,000yearsago.SizeTheKomododragonisthelargestlizardintheworld.Itcangrowtothreemetresinlengthandcanweighabout135kilograms.Despiteitssizeandweight,itcanrunforshortdistancesatupto20kilometresperhour.OriginTheoldestdiscoveredfossilofthemodernplatypusdatesbacktoabout100,000yearsago.FeaturesTheduck-billedplatypusisasmallegg-layingmammal(upto60cminlength)foundonlyinEasternAustraliaincludingTasmania.Asitsnamesuggests,ithasamouththatlookslikeaduck’sbill,whileitsthickfurandflattailaresimilartothoseofabeaver（海狸）.OriginFossilrecordsindicatethatthenautilushassurvivedrelativelyunchangedforaround500millionyears.“LivingFossil”2．Whatmakesthemspecial?Theyareallspeciesthatexist______________yearsonearth.Theyareoldand_______.thousandsofrare1．Howcantheseedstravel?Seedsusuallyarecarriedbythe____，_____，_______or______.2．Howcanthisbenefitplants?Whileyouwatch1．Howcantheseedstravel?Seedsusuallyarecarriedbythe____，_____，_______or______.windwateranimalspeople2．Howcanthisbenefitplants?In

fact,seedshavea_________chanceatlifewhentheyarefurtherawayfromtheirparentplant.Growingtooclosetotheparentplantmeansseedsmightnotgetenoughsun,waterand_________fromthesoil.Also,aspeciesismorelikelyto_________ifitsmembersaremorewidelyspread.betternutrientssurviveTask1

DiscussionAfteryouwatchWhatHowWhyMapleseedsCarriedby_____Mapleseedshave__________thatspinandkeepthemintheairforlonger.

Dependingonthe____________ofthewind,theycansometimestravelforhundredsofkilometers.CoconutCarriedby_____Whenacoconutfallsfromatreeontothebeach,the_____picksitupathightideandcarriesitawaytogrow

somewhereelse.Itshard_______allowsittofloatonthewaterforalongtime.FleshyfruitsCarriedby______________Manyplantsproduce_________fruitsthatanimalsliketoeat.Theanimalreceivesthenutrientsofthefruit,butthe_______whichcan’tbedigestedispassedoutlater.windwateranimalsorpeoplewingsstrengthseashellfleshydigestedTask2

Completethepassageandreaditcarefully.HowSeedsTravelPlantscannotmovefromplacetoplace，butseedscan.Theycantravelgreatdistances.Theymay1.__________(carry)bythewindoruponthewater.Theymayalsobecarriedbyanimalsorpeople.Seedsthatarecarriedbythewindoftenhavespecialshapes.Mapleseedshavewingsthatspinandkeepthemintheairforlonger,2.________(allow)themtolandinallkindsofplaces.Dependingonthe3.________(strong)ofthewind，theycansometimestravelforhundredsofkilometres.Coconutsarecarriedalongbyoceancurrents.Whenacoconutfallsfromatreeontothebeach，theseapicksitupathightideandcarriesitawaytogrowsomewhereelse.4.___(it)hardshellallowsittofloatonthewaterforalongtime.Anotherwayforseedstotravelisthroughthedigestivesystemsofanimals.Manyplantsproduce5.______(flesh)fruitsthatanimalsliketoeat.Theanimalreceivesthenutrientsofthefruit,6.___itdoesnotdigesttheseed，whichispassedoutsometimelater.becarriedallowingstrengthItsfleshybutOfcourse，animalsmove，sotheseedcaneasilyendupalongwayawayfromtheparentplant，especiallyifthefruitiseatenbyabird.Infact，seedshavea7.______(good)chanceatlifewhentheyarefurtherawayfromtheirparentplant.Growingtooclosetotheparentplantmeansseedsmightnotgetenoughsun，waterandnutrientsfromthesoil.Also，aspeciesismorelikelytosurviveifitsmembersaremore8.______(wide)spread.That’s9.___naturehascomeupwithallsortsofdifferentwaysforseedstotravel.Howandwhyseedstravelarejustsomeexamplesofthewonderfulwaysin10._____natureworks.Perhapswecanlearnsomethingfromthenaturalwo