BBC news 2011-01-15 加文本

1.Countries across the region have also been suffering from the spiralling food prices and tough economic conditions that were the immediate spark for events in Tunisia.

参考翻译：该地区的许多国家也遭遇粮食价格高涨和艰难的政治形势，这两点正是突尼斯抗议活动的导火索。

结构分析：这句话的主干是：前半部分。that引导定语从句，修饰spiralling food prices and tough economic conditions。

2.Officials say around 100 soldiers, marines and police had surrounded a house in Xalapa in the eastern state of Veracruz which, it was thought, was being used as a safe house by a gang.

参考翻译：官员表示，大约100名士兵，海军和警察包围了东部Veracruz州一座房屋，据信这里是犯罪团伙的窝点。

结构分析：这句话的主语和谓语是：Officials say，后面是宾语从句。which引导定语从句，修饰a house。