摘要:独立主格结构.又叫做独立结构.在形式上与主句没有任何关系.但是在意思上却与主句密切联系在一起.共同构筑成一个完整的语义环境.独立主格结构只有逻辑上的主语.没有主语和谓语.所以在句法上不是句子.而是一个独立于句子成分之外的特殊结构.独立主格结构分为四类:1.独立分词结构,2.独立不定式结构,3.独立无动词结构,4.with复合结构. [考例]高*考*资*源*网 ① The country has already sent up three unmanned spacecraft, the most recent at the end of last March. A. has been launched B. having been launched C. being launched D. to be launched [解析]B.本题解题的关键在于中间的逗号.本句中没有出现连词.说明这不是一个复合句.因此后面部分不是句子.只能是一个独立主格结构.由recent可知应使用分词的完成时. ② The children went home from the grammar school, their lessons for the day. A. finishing B. finished C. had finished D. were finished [解析]B.中间的逗号说明这是一个含有独立主格结构的简单句.分词与其逻辑主语their lessons含有逻辑上的被动意义.应使用过去分词. ③ John received an invitation to dinner, and with his work , he gladly accepted it. A. finished B. finishing C. having finished D. was finished [解析]B.考查with复合结构中作宾补的分词的选用.his work与作宾补的分词含有逻辑上的被动意义.应使用过去分词作宾补. [实战演练] I. 用括号里动词的适当形式填空:1. Generally speaking, when according to the directions, the drug has no side effect.

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