BBC news 2010-04-09 加文本

参考翻译：山体滑坡发生在夜间，许多家庭应该都在家。

语法学习：would have been表示猜测

“would（很少用will）+have done /been------”表示“过去很可能发生了某事或存在过某种状态”。如：

-------Where is Mr Wang?　I cant find him in his office.

-------He will have gone to the library. He likes reading，you know.

情态动词表示猜测的还有：

“must +have done/been------”表示“过去一定发生过某事或存在过某种状态”，不用于“musn't+have-----”形式。如：

She must have seen the film before,hasn't she?

You must have met uncle Wang in the shop yesterday,didn’t you?

2.The United Nations' ambassadors of six world powers have opened talks in New York on possible new sanctions against Iran over its refusal to halt uranium enrichment.

参考翻译：六国驻联合国大使在纽约举行会谈，讨论针对伊朗拒绝停止铀浓缩活动采取新的制裁。中国与美国，英国，法国，俄罗斯和德国讨论了伊朗核项目问题。

结构分析：这句话的主干是：The United Nations' ambassadors have opened talks in New York。on possible new sanctions against……说明针对什么问题进行的讨论。over its refusal表明制裁的原因。

3.The Chinese ambassador Li Baodong told reporters that these were important negotiations as he entered the building where the meeting is being held.

参考翻译：在进入会议召开地点时，中国大使李保东告诉记者，这是非常重要的磋商。

结构分析：这句话的主语和谓语宾语是：The Chinese ambassador Li Baodong told reporters。that是told的宾语从句，详细说明告诉他们的内容。as he entered the building是事件状语从句。where the meeting is being held是定语从句，修饰building。