1、大部分副詞小品詞（即與介詞同形的副詞）都可以用作表語（以下大寫表示）.Mary was DOWN with a slight fever.The light is still ON.I'll be ALONG in a minute.Are the Children BACK yet?H'll be ROUND this afternoon.Are you THROUGH (with your work)?Is Staley ABOUT?He hid the jewels when nobody was BY.The storm was OVER before the morning.He isn't UP yet?Her office is just ABOVE.His leave is UP tomorrow.We're BEHIND in our plan.I must be OFF now.
2、其他常作表語的副詞back,home,away,here,there,upstair,downstair,abroad
3、提高介詞與副詞的區別介詞后面直接跟名詞或名詞短語作賓語,所以經常有介賓短語的說法副詞后面不直接跟名詞或名詞短語作賓語,沒聽說過副賓短語的，例：1）in the room（in是介詞）2）Come in.（in是副詞）3）get on the bus（on是介詞）4）Come on.（on是副詞）