动词什么时候用do?
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"doing"、"to do"、"do"和"done"都是非谓语动词,它们的用法区别如下:
1. "doing" 是现在分词,表示正在进行的动作,通常用作进行时态的主语、宾语、定语或状语,例如:
- Doing exercise regularly is good for your health. (作主语)
- I saw him doing his homework in the library. (作宾语)
- She felt tired after doing housework all day. (作状语)
2. "to do" 是不定式,表示将来要做或应该做的动作,可以作为目的状语、结果状语、形容词补语、动词不定式的被动式等语法成分,例如:
- She went to the supermarket to buy some fruits. (作目的状语)
- He is too busy to attend the meeting. (作结果状语)
- The best way to learn English is to practice it every day. (作形容词补语)
- I hope to be invited to the party. (作被动语态的不定式)
3. "do" 是原形动词,它可以作为情态动词的替代词出现,表示强调、否定、疑问、猜测等语气,也可以作为实义动词使用,表示做某件事情,例如:
- Do be careful! (表示强调)
- I don't like to do the dishes. (作实义动词)
- Do you know the way to the train station? (表示疑问)
4. "done" 是过去分词,表示已经完成的动作,通常用作作定语、状语或补语,例如:
- The work is done. (作定语)
- He was pleased with the job done by his assistant. (作状语)
- She was done with the project by the deadline. (作补语)
需要注意的是,这些非谓语动词的用法可以根据句子的语境和要表达的意思进行调整和变化。
1. "doing" 是现在分词,表示正在进行的动作,通常用作进行时态的主语、宾语、定语或状语,例如:
- Doing exercise regularly is good for your health. (作主语)
- I saw him doing his homework in the library. (作宾语)
- She felt tired after doing housework all day. (作状语)
2. "to do" 是不定式,表示将来要做或应该做的动作,可以作为目的状语、结果状语、形容词补语、动词不定式的被动式等语法成分,例如:
- She went to the supermarket to buy some fruits. (作目的状语)
- He is too busy to attend the meeting. (作结果状语)
- The best way to learn English is to practice it every day. (作形容词补语)
- I hope to be invited to the party. (作被动语态的不定式)
3. "do" 是原形动词,它可以作为情态动词的替代词出现,表示强调、否定、疑问、猜测等语气,也可以作为实义动词使用,表示做某件事情,例如:
- Do be careful! (表示强调)
- I don't like to do the dishes. (作实义动词)
- Do you know the way to the train station? (表示疑问)
4. "done" 是过去分词,表示已经完成的动作,通常用作作定语、状语或补语,例如:
- The work is done. (作定语)
- He was pleased with the job done by his assistant. (作状语)
- She was done with the project by the deadline. (作补语)
需要注意的是,这些非谓语动词的用法可以根据句子的语境和要表达的意思进行调整和变化。
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