【導讀】They'rekittens.They'redogs.They'repuppies.They'repigs.They'repiglets.What’sthat?What’sthat?It’sacat.It’sakitten.What’sthat?What’sthat?It’sadog.It’sapuppy.What’sthat?What’sthat?It’sapig.It’sapiglet.Isthisatiger?Isthatatiger?No,itisn’t.It’salion.Yes,itis.Isthisalion?Yes,itis.Hecanjump.Shecanjump.Thetigercanjump.Thetigercubscan’tjumpthrougharing.Thelioncubscan’tclimbupaladder.Icanwalk.Shecanwalk.Thedogcanwalk.Icanrun.Hecanrun.Shecanrun.Thecatcanswing.Thebabycanswing.Thisisacircus!Thecatcanswing.Whatarethese?Arethesetigers?No,they'retigercubs.Arethoselions?No,they'relioncubs.Thetigercubscan’tjumpthrougharing.Thelioncubscan’tclimbupaladder.Thisisacircus!monkey______.Whatarethese?Arethesetigers?No,they'retiger. cubs.Arethoselions?No,they'relioncubs.The. climbupaladder.