不定詞用法 to V|當副詞表示「為了」
不定詞用法 有什麼呢？「to＋原形動詞」to V的形式叫做不定詞。to V是不定詞片語時，可以放在句首當副詞用，表示要達到的目的，是「為了」之意。
不定詞也可以當形容詞、不定詞還可當主詞或受詞，將會在之後的篇幅介紹。
這是很實用的句型，一起來看看吧！(記得和動名詞V-ing的用法做比較喔！)
不定詞用法 1：To V, S V
不定詞用法 ：當副詞
- to V不定詞可以放在句首，當副詞用。
- 此用法表示「目的」，意思為「為了」。
- 此用法中的不定詞片語後面會加逗點，另需要主要主詞和動詞。
- 等於in order to V。
- 不定詞放在句尾也可表示目的，但語氣比較弱。
To get up early for the field trip, the students went to bed early.
(為了早起參加校外教學，學生們早早地睡了。)
→ to V表示目的
= In order to get up early for the field trip, the students went to bed early.
= The students went to bed early to get up early for the field trip.
To give the best performance, the magician has practiced the trick for a thousand times.
(為了做出最好的表演，魔術師已經練習了上千遍。)
→ to V表示目的
= In order to give the best performance, the magician has practiced the trick for a thousand times.
= The magician has practiced the trick for a thousand times to give the best performance.
To make the students understand the theory, the professor explained slowly.
(為了讓學生理解理論，教授慢慢解釋。)
→ to V表示目的
= In order to make the students understand the theory, the professor explained slowly.
= The professor explained slowly to make the students understand the theory.
To best enjoy the show, all the audience kept quiet and stayed focused.
(為了更好地享受演出，所有觀眾都保持安靜並保持專注。)
→ to V表示目的
= In order to best enjoy the show, all the audience kept quiet and stayed focused.
= All the audience kept quiet and stayed focused to best enjoy the show.
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📜 表示程度和結果的用法特輯：
- so + adj/adv + that S V (如此...以致於)
- such + adj N + that S V (如此...以致於)
- too + adj/adv + to V (太...而不能)
- adj/adv + enough + to V (夠...而可以)
📜 多益文法相關連結：
📜 間接問句相關用法特輯：
📜 與補語相關的句型