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在英语语法中,非谓语动词可以用作句子中的状语,以修饰主句或其他从句。以下是五种常见的非谓语作状语的形式。
1. 带-ing的动词短语
带-ing的动词短语作为状语时,通常表示进行或同时发生的动作。例如:
- Walking in the park, she saw a butterfly.
- Tom hurt his leg while playing basketball.
2. 带-ed的动词短语
带-ed的动词短语作为状语时,通常表示已经发生的动作。例如:
- Exhausted from the long journey, they decided to rest.
- Having finished her homework, she went to bed early.
3. 不定式
不定式作为状语时,通常表示目的、结果或原因。例如:
- He ran fast to catch the train.
- She studies hard to get good grades.
4. 分词
分词作为状语时,通常表示原因、条件或时间。例如:
- Excited by the news, she couldn't sleep.
- Being a doctor, he knew how to help.
5. 副词
副词作为状语时,通常表示时间、地点、方式等。例如:
- He drives carefully on the highway.
- She spoke softly to the child.
以上是非谓语作状语的五种形式,掌握这些形式可以帮助我们更好地理解和运用英语语法。