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1、Unit4HummingbirdwinterBrainstormingExpressionsofanimal’sbodyparts:fur,feather,plumage,paw,claw,tail,beak,fang,horn,hoof,fin,trunk,hide,maneExpressionsofkeepingpts:walkingdogs,training,keepingthepigeonsinthecage,keepingapetasacompanion,feed,bathe,patone’spetExpressionsofcharacteristicsofanim
2、alsfierce,submissive,docile,clever,understanding,dangerous,poisonous,lovable,independent,loyal,playful,cuteSomecommonproverbsandsayingswithanimals:loveme,lovemydog;ablacksheep;adarkhorse,wilyasafox,meekasasheepDiscussionHaveyoueverkeptabirdasyourpet?Inmanyplaces,wecanseebirdsincages.Doyouth
3、inkthisisasensiblepractice?AbouthummingbirdHummingbirdHummingbirdsareamongthesmallestofbirds,mostspeciesmeasuringinthe7.5–13cm(3–5in)range.Indeed,thesmallestextantbirdspeciesisahummingbird,the5-cmBeeHummingbird.Theycanhoverinmid-airbyrapidlyflappingtheirwings12–80timespersecond(dependingont
4、hespecies).Theyarealsotheonlygroupofbirdsabletoflybackwards.1Theycanflyatspeedsexceeding15m/s(54km/h;34mph).2HummingbirdsarerestrictedtotheAmericas.ThemajorityofspeciesoccurintropicalandsubtropicalCentralandSouthAmerica.Hummingbirdsdrinknectar,asweetliquidinsidecertainflowers.Likebees,theya
5、reabletoassesstheamountofsugarinthenectartheyeat;theyrejectflowertypesthatproducenectarthatislessthan10%sugarandpreferthosewhosesugarcontentisstronger.Nectarisapoorsourceofnutrients,sohummingbirdsmeettheirneedsforprotein,aminoacids,vitamins,minerals,etc.bypreyingoninsectsandspiders.Paras1-7
6、Ilovehummingbird.Bychance,ahummingbirdcametomyhouseinOctober.Para1:thethrillof,thesightof,unbelievably,dazzling,flit,entice,fuchsia,beebalm,cardinalflowers,touch-me-not,depart,climePara2:frostbitten,chore,ruby-throated,apatchof,Icouldn’tbelievemyeyes.Para3:assess,feeder,solution,spotPara4:a
7、trailof,sunroom,setup,feedonPara5:deprivesbofsth,ornithologyPara6:billandtail,spreadpollenPara7:makeit,fattenhimupParas8-20Idecidedtokeepthebirdandspentthewinterwithit.Para8:reason,feasible,livingconditionsPara9:chirp,content,captureone’sheartPara10:abal
