首页
登录
职称英语
There was one thought that air pollution affected only the area immediately
There was one thought that air pollution affected only the area immediately
游客
2024-01-18
39
管理
问题
There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic. At present, we realize that although these are the areas with the worst air pollution, the problem is literally worldwide. On several occasions over the past decade, a heavy cloud of air pollution has covered the east of the United States and brought health warnings in rural areas away from any major concentration of manufacturing and automobile traffic. In fact, the very climate of the entire earth may be infected by air pollution. Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels(coal and oil)is creating a "greenhouse effect"—conserving heat reflected from the earth and raising the world’ s average temperature. If this view is correct and the world’ s temperature is raised only a few degrees, much of the polar ice cap will melt and cities such as New York, Boston , Miami, and New Orleans will be in water.
Another view, less widely held, is that increasing particular matter in the atmosphere is blocking sunlight and lowering the earth’ s temperature—a result that would be equally disastrous. A drop of just a few degrees could create something close to a new ice age, and would make agriculture difficult or impossible in many of our top fanning areas. Today we do not know for sure that either of these conditions will happen(though one recent government report drafted by experts in the field concluded that the greenhouse effect is very possible). Perhaps, if we are lucky enough, the two tendencies will offset each other and the world’ s temperature will stay about the same as it is now. [br] This passage is primarily about______.
选项
A、the greenhouse effect
B、the burning of fossil fuels
C、the potential effect of air pollution
D、the likelihood of a new ice age
答案
C
解析
归纳概括题。文章第一段提到地球的气温可能受到空气污染的影响,接下来谈到两种因空气污染可能造成的后果,所以应选C“空气污染可能带来的影响”。其他三个选项都只是文章主题的一个方面。
转载请注明原文地址:https://tihaiku.com/zcyy/3372231.html
相关试题推荐
Asapoliceman,Mr.Brownthoughtthathehadadutyto______thelostchildreni
Firstaidcansaveaperson’slifeif______immediatelyandproperly.A、performB、
AtfirstKatethoughttheRomaniangirlcouldnotspeakandunderstandEngli
AtfirstKatethoughttheRomaniangirlcouldnotspeakandunderstandEngli
Wethoughttherewere35studentsinthedininghall,______,infact,therewer
—Youcouldn’thavechosenanygiftbetterforme.A、Well,Ithoughtyouwouldlik
Inasecondhandbookshop,Billycameacrossabookwhichhethoughtwascertai
Youwillbelate______youleaveimmediately.A、unlessB、untilC、ifD、orA可转化为Ify
Manyplayerswhohadbeenhighlythoughtofhave______fromthetennisscene.A、di
Womenwerethoughttobe______tomenbecauseoftheprejudiceagainstthem.A、sup
随机试题
通过抑制不正常的姿势,病理性反射或异常运动模式尽可能诱发正常活动,达到提高日常生
中药的“五味”指()。A.寒热温凉平 B.辛甘酸苦咸 C.喜怒悲恐惊
女性,26岁,分娩后10天,1天前发热39℃疑为感冒,用吉他霉素静脉点体温降低到
投资公司计划对甲乙两个创业项目进行投资,若甲项目投资额减少8%,乙项目投资额增加
一水果贩将桔子堆成长方形垛(下图表示长方形垛的垒法),若最底层长边有10个桔子,
通过证券交易所的证券交易,投资者持有或者通过协议、其他安排与他人共同持有一个上市
期货交易与远期交易有类似的地方,都是现在定约成交,将来交割。但期货交易是非标准化
某市市场监督管理局对中央商场实行执法检查时,认定商场销售假烟、假酒和其他伪劣品,
关于《银行业监督管理法》的适用范围,下列哪一说法是正确的?A、信托投资公司适用本
银行在银行结算账户的开立中,明知或应知是单位资金,而允许以自然人名称开立账户存储
最新回复
(
0
)