第1个回答 2013-03-23
B.finished 为正确选项。
请楼主留意“their”前面的标点符号是个逗号，这是本题解答的关键一点。
their前面是逗号，而前后两部分又没有连词连接，说明后半部分不是句子，要么用非谓语，要么用独立主格结构，要么是其它介词短语等结构，但一定不是句子，故排除选项C.had finished和D.were finished；选项A，finishing虽也和their lessons构成独立主格结构，但它是现在分词，与their lessons是被finish这一逻辑关系相矛盾。至此，正确选项B，finished浮出水面。
their lessons finished属于“名词或代词+过去分词”结构，是独立主格结构的一种形式，做时间状语，相当于时间状语从句After their lessons had been finished。
独立主格结构是高中阶段重要的语法之一，是对非谓语做状语这一语法功能的延伸和补充。
下列句子均为正确表达，意思一样：
1，The children went home from the grammar school,their lessons finished for the day.
2,Their lessons finished for the day,the children went home from the grammar school.
3，The children went home from the grammar school.Their lessons had been finished for the day.
4,The children went home from the grammar school after their lessons had been finished for the day.
5,After their lessons had been finished for the day,the children went home from the grammar school.
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第2个回答 2013-03-23
The children went home from the grammar school,their lessons _____ for the day.
A.finishing
B.finished
C.had finished
D.went finished
选B。
The children went home from the grammar school,their lessons finished for the day
孩子们从语法学校回来，并且完成了作业。
解析：首先，完成作业，作业应该是动作的承受者，应该是被完成，所以排除A、C。其次，如选D项，their lessons前应加连词and，因为两个简单句之间必须用连词来连接，所以D项不对。此处考察的是独立主格结构。故选B。
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第3个回答 2013-03-23
选b，The children went home from the grammar school,their lessons finished for the day
孩子们从语法学校回来，并且完成了作业。
finished是过去分词，表示伴随，也就是说这题考的是非谓语的现象
第4个回答 2013-03-23
D
他们的课 :"被完成了"
被动语态(过去时)
如果A ,, 没有be动词不可以ing
如果B,, 没有主语,their lessons 怎么可能完成什么
如果C ,, 没有主语