动词不定式在英语语法中扮演多种角色,可以作为名词、形容词和副词。作为名词时,可以作为主语、宾语、表语、同位语和宾语补足语。作为形容词时,可以作为定语和表语。作为副词时,可以作为状语,修饰动词、形容词和副词等。
作为名词
动词不定式可以作为名词,在句子中充当主语、宾语、表语、同位语和宾语补足语等角色。
例如:
- To learn English is my goal. (作为主语)
- I want to learn English. (作为宾语)
- His dream is to become a doctor. (作为表语)
- Her hope, to pass the exam, is not easy. (作为同位语)
- I find it interesting to learn English. (作为宾语补足语)
作为形容词
动词不定式也可以作为形容词,在句子中充当定语和表语。
例如:
- The book to read is on the table. (作为定语)
- The best way to learn English is to practice more. (作为表语)
作为副词
动词不定式还可以作为副词,在句子中充当状语,修饰动词、形容词和副词等。
例如:
- He went to the library to study. (修饰动词)
- She is too shy to speak in public. (修饰形容词)
- He speaks quickly to finish the task. (修饰副词)