【正确答案】 A

【答案解析】[听力原文]
   A rise in the concentration of health-threatening dust particles causing pollution in many Italian cities has prompted the government to act. A host of new measures have been put on the table for the whole country. They include encouraging local councils to replace ageing buses with more environ-mentally friendly ones and incentives for drivers to trade in their cars for less polluting vehicles. It all comes at a cost. "On top of these measures there will also be discounts on public transport, bus and city metros. These discounts are supported by a fund of 12 million euros which will be made available by my ministry from the last day of the year." The government's move follows this week's introduction of traffic and speed restrictions in Rome, Milan and several other cities. But the action failed to curb pollution levels. Rockets, firecrackers and flares have been banned in public spaces in Milan, Bologna and Turin. But environment activists said the measures do not go far enough.
   Q: What is the news report mainly about?
危害健康的粉尘颗粒浓度上升导致意大利的多个城市遭受空气污染，这已促使政府采取行动。全国范围内诸多新措施已被提交讨论。其中包括鼓励地方政府用更环保的公交车替换那些老化的公交车；还有鼓励司机以旧车折价换购污染更少的汽车。当然这些都会有一定的代价。“除了这些措施之外，还有包括使用公共交通、公交车和城市地铁的折扣。这笔折扣款将由政府部门提供的1200万欧元的基金支出，折扣从今年的最后一天开始实施。”本周政府的行动之前，罗马、米兰和其他一些城市都进行了交通和速度限制，但是这些举措未能控制住污染水平。米兰、博洛尼亚和都灵都严禁在公共场所燃放烟花、鞭炮和燃烧棒。但是环保人士认为，这些措施还远远不够。
   利用播放答题导语的时间，快速浏览每道小题的四个选项。由两道题选项中的measures、air pollution、restrictions、traffic、government support和pollution level等词汇可推断，这则新闻可能会提及政府针对交通或污染问题所采取的措施，听音时应侧重听这些方面。
   四个选项均为名词性短语，可知本题以what提问。听到问题后立刻回忆所听新闻内容，结合选项作答。
   新闻开头就明确了新闻背景和主题，由于粉尘浓度上升致意大利多个城市污染严重，所以各地推出控制空气污染的新措施。新闻后面的内容进一步列举了各种措施，如对使用公共交通的折扣，对交通的管控等。由此可知，A项内容是新闻的主题，为答案。B、C、D三项都是具体措施，不能概括这则新闻，故排除。