不定式短語意思
不定式短語是由不定式（to + 動詞原形）構成的短語，用來表示目的、結果、原因、假設、未來的動作或狀態等。在英文中，不定式短語可以作為名詞、形容詞或副詞使用，具體用法如下：
- 作為名詞： 不定式短語可以用來當作主語、賓語、表語或補語。
- 主語：To study English well, you need to practice every day.
- 賓語：My plan is to travel around the world.
- 表語：My dream is to become a doctor.
- 補語：My job is to teach English.
- 作為形容詞： 不定式短語可以用來修飾名詞，作為定語。
- 定語：I have a lot of work to do.
- 作為副詞： 不定式短語可以用來修飾整個句子，表示時間、原因、結果或方式。
- 時間：To make a decision, I need more information.
- 原因：To stay healthy, I go to the gym every week.
- 結果：She worked hard to get good grades.
- 方式：She likes to swim to relax.
不定式短語的否定形式是在to前面加not，例如：
- 主語：Not to make a mistake, I read the instructions carefully.
- 賓語：My goal is not to lose weight.
- 表語：My problem is not to find a job.
- 補語：My task is not to clean the room.
不定式短語也可以用來構成複合結構，例如：
- 目的：She went to the library to study for her exam.
- 結果：She studied so much that she got a headache. (so...that...結構)
- 假設：If I had more time, I would travel to Europe. (if條件句)
不定式短語的用法非常靈活，可以根據不同的語境和句子的需要來使用。