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英語四級語法：獨立主格結構詳解
想要學好英語四級語法怎么能不知道獨立主格結構呢?下面就讓小編為大家詳解一下吧。
一 、獨立結構的構成：
只有當分詞短語的邏輯主語和句子主語不一致時，我們才能用獨立結構。獨立結構只用做狀語，多用于書面語言。常見的獨立結構有以下幾種：
(一) 名詞/代詞+分詞(包括現在分詞和過去分詞)：
1 The boy ran quickly, his father following. (表示伴隨情況)
2 He lay on his back, his hands acrossed under his head. (表示伴隨情況)
(二)名詞/代詞+形容詞：
1、They started home, their minds full of plans for increasing production. (表示伴隨情況)
2、 He was silent for a moment, his lips tight. (表示伴隨情況)
(三)名詞/代詞+副詞：
1、 He put on his socks, wrong side out. (表示補充說明)
2 、The war over, all the Chinese people’s volunteers came back to China. (表示補充說明)
(四)名詞/代詞+介詞(短語)
1 、She came in, a baby in her arms. (表示伴隨情況)
2 、He went off, gun in hand. (表示伴隨情況)
二、獨立結構在句子中的作用：
獨立結構在句子中只能做狀語，這種結構可以用來：
(一)表示時間：
His homework done, Jim decided to go and see the play.
(=After his homework was done, he decided to go and see the play.)
(二)表示原因：
The last bus having gone, we had to walk home.
(=Because the last bus having gone, we had to walk home. )
(三)表示條件：
Weather permitting, we’ll go for an outing tomorrow.
(=If weather permitting, we’ll go for an outing tomorrow.)
(四)表示伴隨情況或伴隨狀況：
They walked through the forest, an old hunter leading the way.
(五)表示補充說明：
He lived in a wooden house with two rooms, one being a bedroom and the other being an office.
(=He lived in a wooden house with two rooms, one was a bedroom, the other was an office.)
三、獨立變格的變化
在帶有邏輯主語的分詞及其短語前加”with”
1、——Why are they taking all the equipment away?
——The job_____, they are packing up to leave.
A. it to done B. did C. was did D. done
2、Other things being equal, a man who expresses himself effectively is sure to succeed more rapidly than the man whose command of language is poor.
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