A. To make the air clean.B. To tell how dirty the air is.C. To make the air dirty. 相关知识点: 试题来源: 解析 【解析】B【解析】根据 It is a number that tells us howdirty the air is.可知空气污染指数告诉我们空气有多么脏。故答案为B。
___ serious air pollution! We must do what we can ___air pollution.A:What; to cut downB:What a; cut downC:How; to cut downD:How; cut down 相关知识点: 试题来源: 解析 A 考查what 引导的感叹句以及 to do 作补语。句意:多严重的空气污染!我们必须尽我们所能减少空气污染。由 what 引导...
What kind of pollution is mentioned? A. Air pollution. B. Noise pollution. C. Water pollution. 相关知识点: 试题来源: 解析 C 【详解】W: Look at the lake, it is too dirty! M: Because too much dirty water is poured into the lake every day....
相关知识点: 试题来源: 解析 B。解析:文章中明确提到 Air pollution is caused by the emission of harmful gases and particulate matter from factories, vehicles, and power plants.(空气污染是由工厂、车辆和发电厂排放的有害气体和颗粒物引起的。)反馈 收藏 ...
What is the main cause of air pollution in cities? A. Industrial emissions B. Vehicle exhaust C. Waste burning D. Natural disasters 相关知识点: 试题来源: 解析 B。本题考查对城市空气污染主要原因的认识。A 选项工业排放是空气污染的一个原因,但不是主要原因。C 选项垃圾焚烧也会造成空气污染,但不...
句意:多么严重的空气污染啊!我们必须尽我们所能减少空气污染。 根据句子标点,判断为第一句为感叹句,air pollution空气污染,为不可数名词,应使用what引起感叹句;cut down减少,to cut down air pollution为了减少空气污染,此处为动词不定式做目的状语。故选A。反馈 收藏 ...
What___(cause) airpollution?相关知识点: 试题来源: 解析 考查动词的语态。动作发生在过去,"空气污染"和"引起"是被动关系,故句子用一般过去时的被动语态,结构是"were/was+动词的过去分词",cause的过去分词为caused。故填:caused. 空气污染是由什么引起的?反馈 ...
Whatkindofpollutionismentioned? A. Waterpollution. B. Airpollution. C. Noisepollution. 相关知识点: 试题来源: 解析 M:Theriverhasbecomedirtierthanbeforebecauseofthewastewaterfromthefactory.W:That'sterrible.Thegovernmentshouldcloseitdown.Question:Whatkindofpollutionismentioned? A...
1 英语翻译 Text:Type and Sources of Air Pollutants What Is Air Pollution?Air pollution is normally defined an air that contains one or more chemicals in high enough concentrations to harm humans,other animals,vegentation or materials.There are two major types of air pollutants.A primary air pol...
What is the main cause of air pollution according to the article? A. The burning of clean energy. B. The burning of fossil fuels. C. The use of solar energy. D. The use of wind E. nergy. 相关知识点: 试题来源: 解析 B。<解析:文章指出空气污染主要是由化石燃料(如煤、石油和天然气)...