非谓语动词做状语，历来是学生必失分、必不解之处。本文从三种非谓语动词形式出发，运用从句转化思想，分类讲解非谓语动词的前前后后。学后肯定会耳目一新，收获巨大。
非谓语动词主要包括动名词，不定式和分词（现在分词和过去分词）。其中：
动名词相当于名词，不做状语；- 不定式表示目的，可以放在句子前面也可以放在句子后面；
- 现在分词可以放在句子前面也可以放在句子后面；
- 过去分词只能放在句子前面，一般不放在后面。
【不定式放在句子前】
1. 放句子前，做目的状语
In order to make a better life, we should work hard.
【不定式放在句子后】
1. 放在句子后，做目的状语
He studies hard to make a better life in the future.
2. 放在句子后，做原因状语
I am sorry to hear that.
3. 放在句子后，做结果状语
The task is too hard for me to do.
He made a long speech only to show his foolishness.
She is not old enough to go to school.
【现在分词放在句子前】
1. 放在句子前，做时间状语（相当于状语从句省略）
Approaching the vehicle, they saw that a woman was trying to get out of the broken window.
= When they approached the vehicle, they saw that a woman was trying to get out of the broken window.
2. 放在句子前，做原因状语（相当于状语从句省略）
Seeing the police, he run away at once.
= Because he saw the police, he run away at once.
= After he saw the police, he run away at once.（也可以做时间状语）
3. 放在句子前，做条件状语（相当于状语从句省略）
Once losing this chance, you can't easily find it.
= Once you lose this chance, you can't easily find it.
4. 放在句子前，做让步状语（相当于状语从句省略）
Knowing all this, they still made me pay for the damage.
= Although they knew all this, they still made me pay for the damage.
5. 放在句子后，做伴随状语（相当于并列句省略）
My father sits there, staring at the letter.
= My father sits there, and stares at the letter.
【现在分词放在句子后】
1. 放在句子后，做结果状语（相当于定语从句省略）
The region was hit by a terrible flood, leaving many people homeless.
= The region was hit by a terrible flood, which left many people homeless.
【过在分词放在句子前】
1. 放在句子前，做时间状语（相当于状语从句省略）
Asked why he did it, the monitor said it was his duty.
= When the monitor was asked why he did it, the monitor said it was his duty.
2. 放在句子前，做原因状语（相当于状语从句省略）
Caught in a heavy rain, he was all wet.
= Because he was caught in a heavy rain, he was all wet.
3. 放在句子前，做条件状语（相当于状语从句省略）
Given another chance, he will do better next time.
= If he is given another chance, he will do better next time.
4. 放在句子前，做让步状语（相当于状语从句省略）
Though trapped in the ruins, the girl still wore a smile, waiting to be rescued.
= Though the girl was trapped in the ruins, the girl still wore a smile, waiting to be rescued.
5. 放在句子前，做方式状语（相当于并列句省略）
Supported by his wife, the old man went into the room.
= The old man was supported by his wife, and then the old man went into the room.
（完）
作者：王兴刚老师（公众号|头条号|抖音号：王老师英语教学），英语教师，从事教学16年。本号日常推文主要包括：初高中英语知识的梳理和剖析，中高考英语考点的讲解与总结。推文主要面向中高考学生，每日分享学生们能够实实在在用得到的英语知识，特别适合双减后能够独立学习的初高中生！
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