BBC news 2010-04-17 加文本

1.This is the first time that the US government has explicitly accused one of Wall Street's premier institutions of fraud relating to the collapse of the US housing market.

参考翻译：这是美国政府首次明确指控华尔街主要的投资机构涉嫌欺诈导致美国房产市场崩溃。

结构分析：that引导的从句指的是前面的This，表明这是第一次发生这样的状况。accuse of是固定搭配，这个of指的是后面的of fraud。relating to是现在分词作后置定语，修饰fraud。

2.The move comes amid fevered speculation that the security forces might be planning another operation to evict protesters from the sites they are currently occupying in the commercial heart of Bangkok.

参考翻译：作出该决定的同时，人们猜测，安全力量可能计划另外一场行动，驱逐占领着曼谷商业中心的抗议者。

结构分析：that the security forces might be是speculation的同位语。they are currently occupying是定语从句，修饰sites。in the commercial heart of Bangkok表明大致的范围。

3.A BBC investigation has found that months before a Georgian luger crashed and died during a training session at this year's Vancouver Winter Olympics, several top athletes warned organizers that the luge and bobsleigh tracks were dangerous.

参考翻译：BBC一项调查显示，就在乔治亚一名滑雪选手在温哥华冬奥会训练时撞击死亡之前几个月，已有多名顶尖运动员警告组织者，小雪橇和大雪橇跑道存在危险。

结构分析：A BBC investigation has found是主语和谓语，后面是that引导的定语从句，发现的具体情况。宾语从句的主干是：several top athletes warned organizers……that the luge and……是宾语从句，警告的具体内容。months before……是时间状语从句。