
能的身体部分:fur.nose,tooth,paw,claw 能的动作: hide, sniff, eat, catch. walk, swim, dig, climb 可数名词复数的不规则变化,例如,tooth-teeth 动词的一般现在时第三人称单数形式,例如: dig一digs 不定冠词a的用法,例如: a polar bear; 定冠词the的用法,例如:the stems To have 句型,例如: All bears have fur. 含有情态动词 can 的句子,例如: A brown bear can catch fish withits teeth. There be句型,例如: There are many kinds of bears. 一般现在时的用法,例如: Bears use their noses to find food.