English GrammarUnit TwoNoun1、可数(countable)与不可数(uncountable)名词的转换;2、名词的单(singular)、复数(plural form);3、名词作定语(复合名词);4、名词的搭配;5、名词的属格;6、词语辨析。Importance专有名词(ProperNouns)普通名词(CommonNouns)个体名词(IndividualNouns)集体名词(CollectiveNouns)物质名词(MaterialNouns)抽象名词(AbstractNouns)不可数名词(UncountableNouns)可数名词(CountableNouns)名词的种类