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
2025-03-06
17
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] As to the greenhouse effect, the author( ).
选项
A、shares the same view with the scientists
B、is uncertain of its occurrence
C、rejects it as being ungrounded
D、thinks that it will destroy the world soon
答案
B
解析
推理判断题。根据文章第一段最后两句,作者引用了一些科学家的观点,空气中二氧化碳的增多会导致温室效应。然后作者提出一种假设,如果这是真的的话,那么南极的冰雪就会融化,将纽约等城市淹没。然而对这种观点的正确性从文章很难看出。另外文中第二段第三句提到“今天我们还不能确定这两种情况能否发生…”,所以作者的态度应是“uncertain”。
转载请注明原文地址:https://tihaiku.com/zcyy/3985738.html
相关试题推荐
Whetherwayswillbefoundtopreventpollutionornotisjust______worriesthe
Whenit______airpollution,Wuhanfacesthethree"C"s,cars,coalandconstructi
Therewasonethoughtthatairpollutionaffectedonlytheareaimmediately
Therewasonethoughtthatairpollutionaffectedonlytheareaimmediately
Therewasonethoughtthatairpollutionaffectedonlytheareaimmediately
Advertisementcanbethoughtof"asthemeansofmakingknowninordertob
Advertisementcanbethoughtof"asthemeansofmakingknowninordertob
Youwillbelate()youleaveimmediately.A、unlessB、untilC、ifD、orA本题考查连词辨析。可转
Airpollution,togetherwithoverpopulation,________manyproblemsinbigcities
Iimmediately________Luke’sfatherfromthecrowdbecausetheytwolookedlikee
随机试题
Whatistheadvertisementfor?[br][originaltext]TheLegendInstituteofCulin
一列火车A早晨6点从甲地开往乙地,速度为45千米/小时,另一列火车B在2个小时后从乙地开往甲地,速度比A快15千米/小时,中午12时两车同时经过途中某站丙地,然
MuchofnorthernCanadalieswithintheArcticCircle,and______iceorthespa
不消说,相识的人数是随了年龄增加的,一个人年龄越大,走过的地方、当过的职务越多,相识的人理该越增力了。可是,相识的人并不就是朋友。我们和许多人相识,或是
除利用界址点解析坐标外,( )也常常作为依据来恢复界址点或解决权属纠纷A.权属
能缓冲肺泡气体分压的肺容量是A.潮气量 B.余气量 C.补呼气量 D.补吸
资产负债表日,企业结转发生的劳务成本,可能借记的会计科目有( )。A.本年利润
A.吡嗪酰胺 B.利福平 C.异烟肼 D.乙胺丁醇 E.链霉素高剂量、长
虽然小明的期末测试成绩不高,但与期中相比有所提高,老师仍颁给他“学习进步奖”这种
效率与公正都是理想型司法追求的目标,同时也是理想型司法应具备的两个基本要素。关于
最新回复
(
0
)