BBC news 2010-01-10 加文本

1.A spokesperson for the Togo government said it was necessary for the team to withdraw from the African nations’ cup because the players were in shock following Friday’s dramatic gun attack.

it is adj. for sb to do sth

it is adj. for sb to do sth某人做某事很……

It is+adj.+of sb. +to do sth中的adj.跟sb.有关,
这个adj.是用来形容sb.的,
表示某人这么做真是太adj.了．
你会发现在这个句型中你把sb.和adj.提出来可以造个句sb. is(are) adj.
如It‘s very kind of you to help me.
把里面的sb.和adj.提出来可以发现you are kind是说得通的.

而It is +adj.+for sb.+to do sth表示做某事对某人来说很adj.
这里的adj.是do sth.的属性
里面的sb.跟adj.没有直接联系

2.The head of northern Ireland’s involved government Peter Robinson is under growing pressure to resign over allegations that he deliberately kept quiet about his wife’s controversial financial dealings.

allegations that后面引导的是同位语从句。

同位语从句与定语从句的不同之处：

1)从句的作用不同：同位语从句用来进一步说明前面名词的内容；定语从句用来修饰、限定前面的名词。
e.g. The news that our team has won the final match is encouraging. （从句说明“消息”的内容：我们队取得了决赛胜利。）
　　 The news that you told us is really encouraging.（从句对“消息”加以限定：是你告诉我们的，而非来自其他渠道。但消息是何内容却不得而知。）

2)that引导同位语从句时是一个纯连词，故不能用which替换；而that引导定于从句时是代词，常可以和另一关系代词which替换。
e.g. The fact that he is from Canada is new to me. （that不可换为which）

　　 The fact that surprised me is that he is not Chinese.（第一个that可换为which，第二个不行，因为它引导的是表语从句。）

3)引导同位语从句关连词，除that外，还可以根据句义使用任何其它疑问代词或副词；而定语从句不可用what, how, whether等引导。

e.g. I had no idea at all what I should do next.
　　  There is no proof whether he was killed by others.