Question

一道改错题

we are overjoyed at the news of China to have launched another man -made satellite.并解释原因哦

Answer 1

1. 改正：We are overjoyed at the news of China/China's (having) launched another man-made satellite.

2. 解释：
1）介词at表示原因，此处无错。
再如：We were frightened at the terrible sight.
看到这可怕的景象, 我们被吓呆了。
2）而of也是一个介词，其后必须加名词/动名词/代词，而不能加不定式。
最原始的答案是launching“发射”，但是因为该动作发生在谓语动词“are overjoyed”之前，所以用其完成形式having launched.
而且该动作的逻辑主语是China，所以用动名词的复合结构China having launched或China's having launched.
3）动名词的复合结构就是在动名词前面加上其逻辑主语。
如果该主语是名词，可以用其普通格China或所有格形式China's.
如果该主语是代词，则可以用其宾格或形容词性物主代词形式。
再如：Would you mind my/me smoking?

Answer 2

we are overjoyed 【by】 the news of China to have launched another man -made satellite

被动句式
被新闻弄得狂喜

Answer 3

at the news of China's having...
of后面加动名词