表语说明主语“是什么”或者“怎么样。”一般由名词、形容词、副词、介词、不定式即相当于名词或形容词的词或短语来担任。
如:She is always so graceful.(graceful是标语)
I am a teacher.(teacher是标语)
They are at home now .(at home 是标语)
状语用来修饰动词、形容词或副词。一般表示行为发生的时间、地点、目的、方式、程度等意义,常由副词、介词短语、不定式或相当与副词的词或短语来表示。
如:He did it carefully.(carefully是状语)
They will be arriving here tomorrow.(here tommorrow是状语)
Last week ,I went to the theatre(Last week 和to the theatre 是状语)
参考资料:无敌英语语法书