BBC news 2010-01-17 加文本

1.It’s widely reported but not officially announced that he is among 499 would-be candidates disqualified by the accountability and justice commission.

It在这里是形式主语，真正的主语是后面that引导的从句。为了整个句子的平衡， 主语从句经常后置， 并用it充当形式主语(此时， that引导的主语从句若不放在句首， 可以省略引导词that)。例如： What she did is not yet known. 她干了什么尚不清楚。// Whoever comes is welcome. 不论谁来都欢迎。// It is a pity (that) we haven’t contacted for ages. 很遗憾， 我们几年没联系了。// It has not been decided where the meeting is to be held. 在哪里开会还没决定。// It doesn’t matter whether she will come or not. 她是否来这无关紧要。

2.A six power meeting in New York to look at the new ways of halting Iran’s continuing defiance of United Nations resolutions on its nuclear program has ended with no decisions being made.
 
with no decisions being made现在分词作结果状语

现在分词或分词短语做状语时,也可以表示时间、原因、结果、 条件、让步、方式、伴随状况等.其逻辑主语必须和句子的主语一致,有时withwithout +名词或代词宾格+分词也可以表示伴随状况如:

While reading the book, he nodded from time to time. (时间)

The teacher stood there surrounded by the students. (方式)

He sent me an e-mail, hoping to get further information.(伴随)

分词作时间状语，如果先与主动词的动作，且强调先后， 要用having done。如:

Having answered the letter, she went on to listen to the radio.

Having been criticized by the teacher, Li Ming gave up smoking.

注意:如果是否定句,not 一般放在句首,如:
Not having received his reply, he decided to write again.

分词做状语时有时可在其前面加上while、when 、if 、even if 、although 、once、 unless等连词,使用何种分词仍然取决于与主语的关系,主动关系用现在分词,被动关系用过去分词.如:

While staying in Beijing , I visited some of my friends.

Unless invited, I will not attend his party.

Although working very hard, he couldn't satisfy his boss.