[解析]
(1)C.细节理解题.从文章第一段内容"A serious and widespread desert locust outbreak in some parts of Somalia,Kenya,Ethiopia,Sudan and Eritrea has caused panic in the agriculture and aviation sectors.在索马里,肯尼亚,埃塞俄比亚,苏丹和厄立特里亚的部分地区,发生了严重而广泛的沙漠蝗灾,引起了农业和航空业的恐慌."可知沙漠蝗虫的爆发对索马里、肯尼亚、埃塞俄比亚、苏丹、厄立特里亚等国的农业和航空也造成恐慌.故选C.
(2)A.词意推测题.从第三段划线这句话"The outbreak has also caused panic in the aviation sector,following a recent incident where an Ethiopian Airline passenger plane was forced by a swarm(群)of locusts to divert from landing in Dire Dawn Airport in east﹣central Ethiopia to Bole International Airport in Ethiopia's capital Addis Ababa.埃塞俄比亚最近发生了一起事件,一架埃塞俄比亚航空公司的客机被一群蝗虫迫使从埃塞俄比亚中东部可怕的黎明机场转向埃塞俄比亚首都亚的斯亚贝巴的博莱国际机场."中前后部分可以了解,蝗虫的爆发也在航空业中导致恐慌,一架埃塞俄比亚的客机被迫改变航线,原本从Dire Dawn Airport机场降落改为在BoleInternational Airport降落.所以的意思是"转移",结合选项:A.Take a different route走另一条路.B.Take off from an airport从机场起飞.C.Split off from a new place从一个新地方分离出来.D.Slide away from somewhere从某处溜走.故选A.
(3)C.推理判断题.根据文章第5段"The UN agency attributed the invasion to unusual weather and climate conditions,including heavy and widespread rains since October 2019.It warned a further increase in locust swarms is likely to continue until June due to the continuation of favorable ecological conditions for locust breeding.联合国机构将此次入侵归咎于异常的天气和气候条件,包括自2019年10月以来的大范围降雨.它警告说,由于蝗虫繁殖的有利生态条件持续存在,蝗群的进一步增加可能会持续到6月份."可知根据联合国机构的说法,关于沙漠蝗灾的爆发,我们能了解到它与异常的天气和气候条件有关.故选C.
(4)C.推理判断题.根据文章的最后一段"The desert locust is the most dangerous of the nearly one dozen species of locusts.A typical desert locust swarm can contain up to 150 million locusts per square kilometer,according to the IGAD.An average swarm can destroy as many food crops in a day as is sufficient to feed 2,500 people.沙漠蝗虫是近12种蝗虫中最危险的.一个典型的沙漠蝗虫群每平方千米可以容纳多达1.5亿只蝗虫.一群蝗虫一天能摧毁多少粮食作物,足够养活2500人."可知作者列举了一个典型的沙漠蝗群每平方公里可以容纳1.5 亿只蝗虫.一个普通的沙漠蝗群一天可以摧毁足够供给2500 人的粮食作物.以数据来说明蝗虫的危害性.故选C.