Question 3 is based on the news report you have just heard.

​​​​​​​听力原文

    (3) [Almost half the center of Paris will be accessible only by foot or bicycle this Sunday to mark World Car-Free Day. ](4)[ This is in response to rising air pollution that made Paris the most polluted city in the world for a brief time.] Mayor Anne Hidalgo promoted the first World Car-Free Day last year. Hidalgo also has supported a Paris Breathes Day. On the first Sunday of every month, Paris clears traffic from eight lanes of the main road. About 400 miles of streets will be closed to cars. It is expected to bring significant reduction in pollution levels. “Last year’s Car-Free Day showed a 40% drop in pollution levels in some parts of the city, according to an independent air pollution monitor,” reports The Guardian, “and sound levels dropped by 50% in the city center.”

3. What will happen on World Car-Free Day in Paris?

解析：B。根据选项中的cars、city和Buses可推测出，问题有可能询问城市的交通状况，听音时需留意对特殊交通情况的描述。录音开头即说到，为了纪念世界无车日，本周日巴黎市中心近一半的地区只允许步行或骑自行车前往。也就是说，市中心大约一半地区禁止汽车通行。B项表述与录音内容一致，其中About half of its city center是对录音中Almost half the center of Paris的同义替换，closed to cars指的就是录音中的be accessible only by foot or bicycle，故正确答案为B。

错项排除：录音开头说到，巴黎市中心近一半的地区（Almost half the center of Paris）只允许步行或自行车通行，并非是整座城市都禁止汽车通行，故A项错误。录音中并没有提到Buses的相关信息，并且在开头就说到，有一半的地区只允许步行或骑自行车前往，并未表示可以乘公交车前往，故C项错误。录音中并没有说到行人可以自由进入这座城市，故D项排除。