非谓语动词作状语，其逻辑主语须与主句主语保持一致。若不一致，非谓语动词形式须另带主语，从而构成复合结构的形式作状语。这种结构称为“独立结构”。其中，非谓语动词主动用V-ing，被动用V-ed。需要特别注意的是，独立结构与句子之间不能使用任何连词。
独立主格结构主要表示谓语动词发生的时间、原因、条件或伴随情况等，相当于一个状语从句或并列句。
用作时间状语The work done(=After the work had been done), we went home. 工作完成后，我们就回家了。
用作条件状语Weather permitting(=If weather permits), they will go on an outing to the beach tomorrow. 如果天气允许的话，他们将在明天组织一次海滨小游。
用作原因状语An important lecture to be given tomorrow(=As an important lecture will be given tomorrow), the professor has to stay up late into the night. 因为明天要发表一个重要的演讲，教授不得不熬夜到很晚。
用作伴随状语He was lying on the grass,his hands crossed under his head(=and his hands were crossed under his head).他躺在草地上，两手交叉枕在脑后。
表示补充说明We redoubled our efforts, each man working like two. 我们加倍努力，一个人干两个人的活。
*注：独立主格结构表示时间、条件或原因时，相当于一个状语从句，一般放在句首，表示原因时还可放在句末；表伴随状况或补充说明时，相当于一个并列句，通常放于句末。
名词/主格代词与现在分词之间是主谓关系。如：
The girl staring at him(= As the girl stared at him), he didn't know what to say. 姑娘两眼望着他，他不知道说什么好。
Time permitting(= If time permits), we will go for an outing tomorrow. 如果时间允许的话，我们明天去郊游。
名词/主格代词与过去分词之间是动宾关系。如：
The problems solved(= As the problems were solved), the quality has been improved. 随着问题的解决，质量已经提高了。
Her glasses broken(= Because her glasses were broken), she couldn't see the words on the blackboard. 由于眼镜摔坏了，她看不见黑板上的字。
An air accident happened to the plane,nobody alive. 那架飞机遭遇了空难，无一人生还。 So many people absent, the meeting had to be called off. 这么多人缺席，会议不得不取消。
The boy goes to the classroom,book in hand. 那男孩手里拿着书去教室。
Mary was sitting near the fire, her back towards the door. 玛丽靠近火炉坐着，背对着门。
2>with 引导的独立主格:与主句逻辑关系紧密
形式为: with + n. + -ed/-ing形式; with + n. +abj.; with +n. + 介词短语
3>each引导的强调型独立主格:强调句尾的复数名词
形式为:句子 + 复数名词结尾 , each + 介词短语/形容词短语/名词短语/-ing形式/-ed形式
Under the restructuring, the huge organization that operates the company's basic businesses will be divided into five groups, each with its own executive.
There being nothing else to do, we went home. 没有别的事可做，我们就回家了。
There being no further business, I declare the meeting closed. 没有再要讨论的事了，我宣布散会。
It being Christmas, the government offices were closed. 由于圣诞节的缘故，政府机关都休息。
It being a holiday, all the shops were shut. 由于今天是假日，所有商店都关门了。
1）独立主格结构的逻辑主语与句子的主语不同，它独立存在。
2）名词或代词与后面的分词，形容词，副词，不定式，介词等是主谓关系。
3）独立主格结构一般有逗号与主句分开。
举例：
The test finished, we began our holiday.
= When the test was finished, we began our holiday.
考试结束了，我们开始放假。
The president assassinated, the whole country was in deep sorrow.
= After the president was assassinated, the whole country was in deep sorrow.
总统被谋杀了，举国上下沉浸在悲哀之中。
Weather permitting, we are going to visit you tomorrow.
如果天气允许，我们明天去看你。
This done, we went home.
工作完成后，我们才回家。
The meeting gone over, everyone tired to go home earlier.
会议结束后，每个人都想早点回家。
He came into the room,his ears red with cold.
他回到了房子里，耳朵冻坏了。
He came out of the library, a large book under his arm.
他夹着本厚书，走出了图书馆
注：独立主格结构有时可在其前加上介词with。
Don’t sleep with the windows open.别开着窗睡觉。
He was lying on the bed with all his clothes on. 他和衣躺在床上。
She came in with a book in her hand. 她手里拿着一本书走了进来。
He fell asleep with the lamp burning. 他没熄灯就睡着了。
I won’t be able to go on holiday with my mother being ill. 因为妈妈有病，我无法去度假。
He sat there with his eyes closed. 他闭目坐在那儿。
All the afternoon he worked with the door locked.整个下午他都锁着门在房里工作。
I can’t go out with all these clothes to wash. 要洗这些衣服，我无法出去了。
1.独立主格与状语从句的转换当状语从句的主语与主句的主语不是指同一个对象时，可用独立主格结构取代状语从句，但不再保留连词。After class was over (=Class being over / Class over), the students soon left the classroom.下课后，学生很快离开了课室。
2. 不能省略being (having been)的情形：在下列两种情况下，独立主格结构中的being（或having been）不能省略。
(1) 独立主格的逻辑主语是代词时。如：It being Sunday, we went to church.因为是星期天，我们去了做礼拜。
(2)在There being＋名词的结构中。如：There being no bus, we had to go home on foot.因为没有公共汽车，所以我们不得不步行回家。
3. 在“名词（或代词）＋介词短语”构成的独立主格结构中，一般不用形容词性物主代词和冠词。如： Miss Smith entered the classroom, book in hand.史密斯小姐走进了课室，手里拿着一本书。比较with的复合结构。如：Miss Smith entered the classroom, with a book in her hand.
4. 独立主格结构没有所有格形式The chief-editor arriving, we began the meeting. 主编来了，我们开始开会。(比较动名词复合结构。)
请看下面一道题：
Not far from the school there was a garden, _________ owner seated in it playing chess with his little grandson every afternoon.
A. its B. whose C. which D. that
【分析】此题很容易误选B，许多同学会认为句中逗号后是一个非限制性的定语从句，whose 在定语从句中用作定语修饰其后的名词 owner。此分析从表面上看，似乎天衣无缝，但实质上是错的，原因是空格后根本不是一个句子，因为没有谓语。尽管句中有两个动词，但它们都是非谓语动词。也许有的同学认为，其中的 seated 可视为谓语动词，但是注意，seat 用作动词时，它总是及物的，其后要么接宾语，要么它就用于被动语态，所以若在 seated 前加上助动词 is，则可以选择B（当然若将 seated 改为sitting，也应选择B）。所以此题最佳答案选A。
(1) He wrote a lot of novels, many of _________ translated into foreign languages.
A. it B. them C.which D. that
(2) He wrote a lot of novels, many of _________ were translated into foreign languages.A. it B. them C. which D. that
第(1)应选B，而不能选C，是因为句中的 translated 是过去分词(非谓语动词)，若选C，则该从句无谓语；第(2)应选C，该句是典型的非限制性定语从句，因为该句修饰的是前面的novels，即指物，所以只能用which做of的宾语，故本题选C。
： (3) He wrote a lot of novels, and many of _________ were translated into foreign languages.
A. it B. them C. which D. that
【分析】此题与上面的第(2)题不同，两句间多了一个并列连词and，说明这是一个并列句，故应选B，则不能选C。
请做做以下三题(答案均为B)：
(1) There I met several people, two of _________ being foreigners.
A. which B. them C. whom D. that
(2) There I met several people, two of _________ were foreigners.
A. which B. whom C. who D. that
(3) There I met several people, and two of _________ were foreigners.
A. which B. them C. whom D. that
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