神马作文网这道题选c,请问这是什么结构?这是什么语法?为什么选c?请讲详细一些.
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这道题选c,请问这是什么结构?这是什么语法?为什么选c?请讲详细一些.
2．The
lecture_________,he left his seat so quietly that no one complained
that his leaving disturbed the speaker．
A．began
B．beginning
C．having
begun D．being beginning
2．The
lecture_________,he left his seat so quietly that no one complained
that his leaving disturbed the speaker．
A．began
B．beginning
C．having
begun D．being beginning
回答：这是独立主格结构.如果补充完整,句子将是这样：
After/ When the lecture began/had begun,he left his seat so quietly that no one complained that his leaving disturbed the speaker．
提问中的句子就是把这个复合句改成了简单句,由于主句和从句的主语不一致,除了要把从句中的谓语动词改成非谓语动词外,还要保留其主语,这就叫“独立主格”.又如：
如果时间允许,我要去买点东西.
If time permits,I’ll go and do some shopping.(复合句)
Time permitting,I’ll go and do some shopping.(简单句)
欢迎提问,
再问： 额，不大能分辨出来独立主格，还请赐教，这里面的having begun是现在完成进行时么？为什么要用这种时态啊？
再答： 继续回答：这里面的having begun是非谓语动词的完成时。如果要把复合句改成简单句，就要将从句中的动词由谓语形式改成非谓语形式，如果从句中的谓语动词的动作发生在主句谓语动词的动作之前，这个非谓语动词就要用其完成时形式，即：having done又如：When he finished his work, he went out for a walk. （复合句）→Having finished his work, he went out for a walk. （简单句） 欢迎追问，乐意解答；愿你满意, 望你采纳。
After/ When the lecture began/had begun,he left his seat so quietly that no one complained that his leaving disturbed the speaker．
提问中的句子就是把这个复合句改成了简单句,由于主句和从句的主语不一致,除了要把从句中的谓语动词改成非谓语动词外,还要保留其主语,这就叫“独立主格”.又如：
如果时间允许,我要去买点东西.
If time permits,I’ll go and do some shopping.(复合句)
Time permitting,I’ll go and do some shopping.(简单句)
欢迎提问,
再问： 额，不大能分辨出来独立主格，还请赐教，这里面的having begun是现在完成进行时么？为什么要用这种时态啊？
再答： 继续回答：这里面的having begun是非谓语动词的完成时。如果要把复合句改成简单句，就要将从句中的动词由谓语形式改成非谓语形式，如果从句中的谓语动词的动作发生在主句谓语动词的动作之前，这个非谓语动词就要用其完成时形式，即：having done又如：When he finished his work, he went out for a walk. （复合句）→Having finished his work, he went out for a walk. （简单句） 欢迎追问，乐意解答；愿你满意, 望你采纳。