《大学综合英语》课件-Unit 6 - Birds

BirdsTopic:owlowlisanocturnal（夜行性）bird,mostspeciesalmostfeedsonrodents(鼠类）,anditisakindofbeneficialbird.Theowlisaprotectedsecondclassanimalinourcountry.Aroundtheworldthereareabout146kindsofowls,theirbodyisalsoduetothedifferentenvironment,andtherearealotofdiffereces.owlTheowlˊsvisionisverysensitive,itsvisioninanyphotometric(光度）maintainedthesamesensitivity,justbecausethedaytimeastronglightsourceontheowlisheavyload,soowlsmostlychosenight.Theowlˊsearsarealsoverysensitive,itcanlocatethepositionofthesoundsourcetolistentothesound,andthenitcancatchtheprey.owlSinceancienttimes,becauseofsomespecialappearanceandlivinghabits,andbecausepeoplefeelterribleduetoitsunpleasantsounds,owlisoftendescribedasanunluckybird.However,inancientGreekmythology,theowlwasregardedasthegoddesswisdom,Athene’spet,owlisasymbolofwisdom.eagleTheeagleisacarnivorous(食肉性）group.Itisveryferocious.Eaglesfeedonbirds,miceandothersmallanimals.Eagleisverystrong,inthedesert,jungle,swamp(沼泽）,andthesea,eaglesliveineveryplace.Theirnestisveryhigh.Eagle’slifeaverages50years.Theycangivebirthto2to5eggs,butgenerallyonlyonecanlive.Theeagleisasymboloffreedom,strength,courageandvictory.1.ThebaldeagleisthenationalbirdoftheUnitedStates，anditisthemainpatternofthenationalemblemoftheUnitedStates.2.Russia'snationalemblemisadoubleheadedeaglepattern.So,manycountrieshaveanationalflagandnationalemblemoftheeaglepattern:3.Egypt'snationalflagandthenationalemblemistheimageoftheeagleSaladin（萨拉丁之鹰）Wildgooseisakindofmigratorybird.Itsadaptabilityisstrong.Theyoftenliveinthewatersofaquaticplants,growinginswamps,feedingweedsorshrimp.WildGoose1.Wildgooseissincere.

Ateamofgoose,theold,weak,sickanddisabled,cannothuntforfoodforalivingbyvirtueoftheirability.Therestoftheyounggeesewillneverabandon,andwillraise

them.2.Wildgooseispolite.Thearrayheadisledbytheoldgoose,andthestrongfastgeesewillnotflyaheadoftheoldgooseinfront,whichshowshumblecomity.3.Wildgooseisloyaltolove.Whetherthemalediedorthefemaledied,theleftonewillneverfindanotherpartner.4.

Wildgooseisfaithful.

Itreferstothefactthatwildgeesearemigratorybirds.Duetoseason’s

transformation,theymigratetothesouth.

WildGooseDaveisaverycommonbird,

anditissmart.

Ithasthehigheralertness,andisverysensitivetothesurroundingstimuli.Davehasastrongmemory,sotheancientpeopleletdovepassinformation.Dovehasastrongfeelingwithhome.Generallyspeaking,theirplaceofbirthisaplaceoftheirlife.Anyotherstrangeplace,fordoves,isnotidealanddoesnotmakethematease.Theywanttoreturntotheirhometownanymoment,especiallyindangerandterror,showingthestronger"homesick"desire.DoveisstillasymbolofthepeaceoftheworldDoveTherearemanydifferentkindsofswallows.Differentswallowshavedifferentlivinghabits.someliketostayunderhigheavespavilionsofancientbuildingsforthenest;some

buildtheirnestsofindoorbeamsandcornerlair.Theyliketobeclosetohuman.Swallowskeeptheirownindependentspiritlearningfromtheexperienceofanimalsaround.Humanthinkit

is

abeneficialbird,andtheswallow'sarrivalisdescribedasasymbolofspring.SwallowThecuckoo

livesinaplacewherethevegetationisflourishingandtheyareverytimid.Peopleoftenhear

theirsoundbutnottheirfigure.Althoughthecuckoocallsisalsoveryclear,itiscommonanditisverysmall,foritisneverclosetohumanandvillage.

Cuckoocanhelphumantoeliminatepests,especiallythepinecaterpillars.Therefore,thecuckooisknownasthe"guardianoftheforest“,alaudatoryname.Sopeoplelookonitasakindofbeneficialbird.CuckooMagpieisabird

thathasstrongabilitytoadapttothelife,inthemountains,plains,wilderness,farmland,cities,parksandgardens.Butasageneralrule,themoretherearehumanactivities,themorepopulationofmagpie;inthelonelywoodsthisspeciesfigureisrarelyseen.Magpieisasymbolofgoodluckandhappiness,s