文法 #77 前置詞 about / 副詞 about

[前置詞:関係・関連:~について]
  • Think about it.
  • How about a beer? (how about:勧誘)
  • Do you want to tell me about it? (前置詞句 about it は tell の目的語)
  • "What shall we write about?" they asked.

[前置詞:周囲・近接:~の周りで、~頃]
  • His house is somewhere about here. (about hereは定型句)
  • It will be about the end of our adventures, I guess. (数値に使う場合は副詞)
  • Many strange things happened about me. (=around ※米)

[副詞:近接・概算:約・およそ]
  • I got up about six. (時間)
  • I walked about 1 mile. (距離)
  • I paid about 50 dollars. (お金)
※もちろん重さ、温度、サイズ等数値を表すもの全てに使うことができる。

[副詞:近接:ちょうど~するところ、ほとんど]
  • It's about time.
  • We're about ready.
  • That's about right. 
  • I was about to go out when he called on me. (be to do構文にaboutが付く)

日記 に補足があります。

→ 文法 #35 前置詞の一覧