托福考試輔導(dǎo):語法講解(32)

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考點三 獨立主格結(jié)構(gòu)
    獨立主格結(jié)構(gòu)是介于分詞和主謂句之間的非謂語形式,對于分詞來講其邏輯主語必須和句子的主語保持一致,而獨立主格則在很大程度上克服了這一局限性
    1、主要特征
    (1) 獨立主格是含有主語的分詞結(jié)構(gòu),分詞與主語間是主謂關(guān)系,
    基本形式為:主語+現(xiàn)在分詞或過去分詞
    如:his heart bleeding
    the baby crying
    the project completed
    The school being over, the street was full of the students.
    = When the school was over, the street was full of the students.
    (2)切記獨立主格不等同于主謂結(jié)構(gòu),
    比較:my mind wandering (獨立主格);
    My mind was wandering (主謂結(jié)構(gòu))
    (3)獨立主格的主語和句子主語不一致
    如:(With) His mouth filled with water, he couldn’t utter a word. (獨立主格)
    對于分詞來講其邏輯主語必須和句子的主語保持一致:
    Filling his mouth with water, he couldn’t utter a word.
    2. 在句子中的作用
    獨立主格結(jié)構(gòu)通常在句中表示時間、條件,原因、伴隨狀態(tài)等
    如:The film being over, we had a stroll on the nearby street. (時間)
    Weather permitting, I will go fishing with my family. (條件)
    Time pressing, they had to work overtime. (原因)
    The leaves rustling in the breeze, I roamed on the country road. (伴隨)
    例題:
    (1)
    ----modern offices becoming more mechanized, designers are attempting to personalize them with warmer, less severe interiors.
    (A) If
    (B) But
    (C) With
    (D)Once
    答案:C
    解釋:句中主干完整, 主語是designers, 謂語是are attempting, 之后是不定式構(gòu)成的賓語. 空白后 becoming 采取分詞形式, modern offices是becoming的邏輯主語, 因此可確定需填入的詞會與原句構(gòu)成獨立主格結(jié)構(gòu), 而不是從句, A B D可一次性排除, 其實此句除去空白處, 已是完整的句子, 類似句子如: The man entered the room, his hair flying in the air.
    注意: 表示伴隨狀態(tài)的獨立主格結(jié)構(gòu)通??梢杂蓋ith引導(dǎo), 如本例題.