[解析]
(1)A.细节题.根据文章内容,In March 2016,10 London pigeons became famous.These pigeons took to the sky from Primrose Hill in north London,wearing backpacks monitoring air pollution.Once in the air,the backpacks sent live air﹣quality updates to the smartphones of the Londoners below.由此可知,10只鸽子是用来检测空气污染情况的,结合选项,故选A
(2)B.细节题.根据文章内容,As for what to do with the collected PM waste,he has currently set up a business making jewellery out of the waste.从Smog Free Tower收集到的颗粒污染物是可以被用在珠宝制作行业的,结合选项,就是它可以被重新利用,故选B
(3)C.主旨题.根据文章内容,作者通过这篇文章主要向我们描述了在英国伦敦人们用鸽子来监测空气污染情况的故事.而全世界各地也是为了减轻空气污染提出了不同的有效方法,结合选项,故选C
(4)B.文章结构题.根据文章内容,在安排该文章的时候先是介绍话题,提出论点,在接下来的叙述里再逐一的进行阐述,最后进行总结.结合选项,故选B.