BBC news 2010-07-19 加文本

1.The oil company BP says it's increasingly hopeful that the new cap on its stricken well in the Gulf of Mexico can be used to block the flow of oil completely until the leak is permanently sealed.

参考翻译：英国石油公司表示，在墨西哥湾破裂的油井上面添加的新的控油大礼帽有望完全阻止石油泄漏，直到漏油点被永久性地封闭。

结构分析：这句话的主干是：The oil company BP says it's increasingly hopeful...it是形式主语，真正的主语是后面that引导的从句。until the leak is permanently sealed引导条件句。

2.The two men stressed the cooperation and dialogue that they believe now defines their countries' relationship, and they stressed their common goal to join the European Union which, says Brussels, will only be achieved through better regional cooperation.

参考翻译：两位国家元首强调，双方之间的合作和对话定义了两国的关系，他们还强调了加入欧盟的共同目标。布鲁塞尔表示，加入欧盟只能在改善区域合作的基础上才能实现。

结构分析：这句话的主干是两个并列的句子，谓语都是stressed。that they believe now defines是定语从句，修饰cooperation and dialogue。which, says Brussels, will only be achieved也是定语从句，修饰goal to join the European Union。