鲸的身体部分: fuke,tlipper tooth，baleen，blowhole 鲸的动作: swim,dive,chase，boreathe, play 可数名词复数的不规则变化，例如: tooth-teeth 名词的所有格形式，例如:whale's 鲸的，world's世界的 动词的一般现在时第三人称单数形式，例如: eat一eats，go一goes 形容词的最高级形式，例如: biggest To be句型，例如: They are the world's biggest animals. To do句型，例如: Whales live in the ocean. Tohave 句型，例如: They have baleen. 含有情态动词 can 的句子，例如: Some whales can swim in warmwater. 否定句，例如: Other whales don't have teeth.