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Unit2AnimalsandscienceLessonNineLet’ssing!Revisionbirdcolorful富有色彩的indifferentsizesandcolorssome…andothers…有

的……，其余的……wing翅膀feather羽毛beak鸟喙insect昆虫nut坚果seed种子colorfulfeatherwinginsectnutseed富有色彩的羽毛翅膀昆虫坚果种子ReadandrememberListenandf

indoutWhatdidscientistsinventafterstudyingbirds?Readandremembercomeindifferentsizesandcolorsdifferentkindsof…beimportantfor…protectbirdsfroms

un,windandwatergetoffthegroundflyintheairlandsafelyReadandfinishthesentences1.Birdscomeindifferent________.Somearebigandsomearesmall.Birdscomeindif

ferent________.Somebirdsareblackandwhiteandothersare__________.2.Ifabirdhasalongthinbeak,iteats________ornectar.sizescolo

rscolorfulinsectsReadandanswer1.Whyarebirdbeaksdifferent?2.Whyarefeathersimportantforbirds?Writethenameforeachbird

Hoework:SurftheInternetandfindmorekindsofbirds