In front of our house stands a tall tree,____top well above the tops of other trees.

问题描述:

In front of our house stands a tall tree,____top well above the tops of other trees.
A.which
B.what
C.its
D.whose
答案为什么是C呢,能够举些别的例子吗?
In addition
What should you say when___to a stranger?
A.to introduce
B.introducing
C.introduced
D.being introduced
为什么不可以是D?

1.第一题的答案是C,根据句意,空中应该填“它的(顶部)”;C和D都可以表示“它的”,但D(whose) 只能用在定语从句中.此题空后不是定语从句,只是一个短语(没有谓语动词不能构成句子)所以不能用D,只有C可选了.(A与B 都没有“它的”之意,也不能选)
2.第二题 C和D 都有“当被介绍给生人时”的意思,但此句的句子结构是分词做状语,分词做状语时,基本上是不会用D这种情况的.如:Asked who he was,he said he was a new comer.(= When asked who he was,he...当被问到他是谁时,他说他是新来的人.)Pushed by the wind,the bolloon went up into the sky.(被风吹动着,气球渐渐飞上天去.)不需要用being asked ,being pushed....
D 选项being done 出现在分词做定语的情况中,表示“正在被...的...”
例如:the house being built 正在被盖的房子; the problem being discussed 正在被讨论的问题
(注:你提的问题属于分词的问题,学习分词时得想办法弄清楚分词做状语还是分词做定语,做题就容易了.)