the pollution of air空气污染是由于人类活动或自然过程导致空气中存在有害物质,对人类健康、动植物生长及大气层造成负面影响的现象,现已成为全球性问题。 空气污染的定义与分类 空气污染,英文表述为'Air pollution',是指由于人类活动或自然过程导致空气中存在一种或多种有害物质,这...
解析 A。本题考查名词辨析。A 选项 level 侧重于“水平、程度”,“空气污染的水平”常用 level 来表达;B 选项 degree 常指“程度、度数”;C 选项 standard 意为“标准”;D 选项 rate 多表示“比率、速率”。结合语境,说的是“空气污染的水平”,所以选 A 选项 level。
air pollution Thesaurus Medical Legal Acronyms Encyclopedia Wikipedia Related to air pollution:noise pollution,water pollution Contamination of the air, especially by smoke or gases from vehicles, factories, and power stations. It can cause disease, kill plants, and damage structures. ...
A. level B. degree C. standard D. grade 相关知识点: 试题来源: 解析 B。“degree”有“程度”的意思,“the degree of...”表示“...的程度”;“level”侧重“水平”;“standard”指“标准”;“grade”意为“等级”。这里指空气污染的程度,用“degree”。反馈 收藏 ...
the burning of fossil fuels C. clean energy use D. water conservation 相关知识点: 试题来源: 解析 B。解析:本题考查词汇与社会现象的联系。air pollution(空气污染),fossil fuels(化石燃料),the burning of fossil fuels(化石燃料的燃烧)是造成空气污染的主要原因。选项A,树木多不会造成空气污染,反而有...
1The threat of air pollution is real and we shouldn't ___ responsibility to fight it.( )A. hand overB.shrink fromC. pull overD. arise from 2The threat of air pollution is real and we shouldn't ___ responsibility to fight it. A. hand over B. shrink from C. pull over D. ari...
The problem of air pollution ___ seriously by people now. A. is taken B. is being taken C. was taken D. has been taken 相关知识点: 试题来源: 解析 B。本题考查现在进行时的被动语态。now 表明现在正在发生的事情,空气污染的问题正在被人们严肃对待,用 is being taken。反馈 收藏 ...
The problem of air pollution___discussed by people all over the world. A. is being B. has been C. was D. is 相关知识点: 试题来源: 解析 A。这句话的意思是空气污染问题正在被全世界的人讨论。“is being discussed”是现在进行时被动语态。B 选项现在完成时被动语态强调已经完成的动作对现在的影...
The effects of air pollution are large and numerous(许多的). Air pollution can haveserious influences on the health of human beings, and also seriously affects naturalecosystems.Because it is located in the atmosphere, air pollution is able to travel easily. As a result,air pollution is a glo...
The Effects of Air Pollution on Health 空气污染对健康的影响 空气污染是人类面临的一个重要问题。随着工业化、城市化的发展,人们在生产、生活中排放出来的许多有害物质,直接或间接地导致了空气质量的恶化。浓厚的烟雾、雾霾、噪音等不利于人类身体健康的因素,都减少了大家生活的质量。那么,究竟空气污染对人们的健康...