什么是 “It takes… to do”？
“It takes… to do” 是英语中一个常见句型，用来表达完成某事所需的时间、金钱、精力等资源。 其中，“it” 是形式主语，真正的主语是后面的不定式（to do）。
基本结构
It takes + 时间/金钱/努力等 + to do something.例如：
- It takes two hours to finish this report.
- It takes a lot of patience to learn a new language.
- It took $50 to fix the bike.
常见用法说明
- 该句型通常用于一般现在时或一般过去时。
- 主语 “it” 不可省略，因为真正的主语（to do 短语）在句尾。
- 可用于口语和书面语，语气中性、客观。
更多例句
- It takes courage to speak in public.
- It took me three days to recover from the flu.
- How long does it take to get to the airport?
- It doesn’t take much effort to be kind.
常见错误
❌ 错误：~~It takes two hours for finish the homework.~~
✅ 正确：It takes two hours to finish the homework.
注意：动词必须使用 to + 动词原形 的不定式结构。