BBC news 2010-04-19 加文本

1.As forecasters say that a cloud of volcanic dust spreading from Iceland across Europe shows some signs of moving, officials have expressed hope that up to half of all flights across Europe could operate on Monday.

up to多达

例句：I can take up to four people in my car.
      我的汽车最多能坐四个人。

直到

例句：Up to now he's still quiet.
      他直到现在仍保持沉默。

2.After adopting a cautious approach up till now, the airline industry has increasingly pushed the European authorities to end the flight restrictions which have caused travel chaos in Europe and beyond.

up till now到目前为止

例句：We've cooperated very well up till now.
      我们一直都是合作得很好的。

3.In his first foreign trips since the scandal came to a head, the Pope promised to implement what he called effective measures to protect young people in the future.

come to a head时机成熟, 濒临危急关头

例句：The long-standing dispute about working conditions finally came to a head when the workforce voted for strike action.
      关于工作条件的长期争论终于达到了白热化的程度, 工人们投票赞成罢工。

4.Local media said the charges are set to include promoting racism and fermenting intolerance.

set to〈非正〉开始努力干

例句：He set to with a will and soon finished it.
      他下定决心做这件事, 很快就完成了。