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参考翻译：由于BP石油公司主管召开会议，讨论是否停止向股东分发红利，BP股价严重下跌，伦敦股市价格下跌超过9%。
结构分析：这句话的主干是：The value of BP shares have fallen sharply again。dropping是现在分词作伴随状语。as directors of the oil company met是时间状语从句。
2.In a BBC interview, Mr Chavez said a deal giving US forces access to seven military bases in Colombia to fight drug trafficking and rebels had sent very negative signals to the region.
参考翻译：在接受BBC采访时，查韦斯表示，美国与哥伦比亚达成一份协议，使得美国军队可以使用哥伦比亚七座军事基地，以打击贩毒活动和反叛分子，这向该地区发出了非常消极的信号。
结构分析：这句话的主语和谓语是Mr Chavez said。In a BBC interview是状语。后面的是宾语从句。宾语从句的主干是：a deal had sent very negative signals to the region。giving US forces access to是现在分词作后置定语，修饰deal。
3.A federal police convoy of four vehicles was returning to Mexico City when it was trapped at a roadblock in the town of Zitacuaro and sprayed with machine-guns.
参考翻译：由四架车辆组成的联邦警察车队正在返回墨西哥城，在齐泰库阿鲁小镇遭遇路障和机枪扫射。
结构分析：这句话的主干是：A federal police convoy was returning to Mexico City。when it was trapped at... and sprayed...是时间状语从句。
