2017年6月英語四級語法20天沖關快訓:第六天

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     獨立主格
    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(xiàn)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.