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句子中to和for的區別和用法

  To和for的用法:

  一、當表達緣由時:

  to和for都可以使用,但to此時是不定式的用法,後接動詞原形,而for則直接後接名詞,如:

  I went to the supermarket to buy apples.

  I went to the supermarket for apples.

  二、當表示“給予”時:

  此時的.to和for後面都可以接動作的物件,但用to時往往意味著句子的謂語動作會發生方位變化(事物從一個地方移到另一個地方),for則沒有,如:

  I made a cake for her.

  I gave a cake to her.

  三、當表達目的時:

  此時與第一條類似,to用作不定式後接動詞原形,而for則直接後接名詞,如:

  I asked her to give me the key.

  I asked her for the key.