首页
登录
职称英语
It was once thought that air pollution affected only the area immediately ar
It was once thought that air pollution affected only the area immediately ar
游客
2024-02-09
22
管理
问题
It was once thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic. Today, we know 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 entire eastern half of the United States and led to health warnings even in rural areas away from any major concentration of manufacturing and automobile traffic. In fact, the very climate of the entire earth may be affected by air pollution.
Some scientists feel 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" — holding in 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 under water.
Another view, less widely held, is that increasing particulate 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 new ice age and would make agriculture difficult or impossible in many of our top farming areas.
At present we do not know for sure that either of these conditions will happen, though one recent government report prepared by experts in the field concluded that the greenhouse effect is very likely. Perhaps, if we are very lucky, the two tendencies will offset each other and the world’s temperature will stay about the same as it is now. [br] The word "offset"(Line 3, Para. 4)means______.
选项
A、slip into
B、catch up with
C、set up
D、make up for
答案
D
解析
语义题。此句意思是:但如果我们非常幸运,这两种趋势或许会相互offset,地球气温会像现在一样,保持不变。由此可知,“offset”在文中的意思应为“弥补,抵消”。故答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/3434355.html
相关试题推荐
Peopleindevelopingcountriesareeasilyaffectedbycigaretteadvertisementbe
Peopleindevelopingcountriesareeasilyaffectedbycigaretteadvertisementbe
Peopleindevelopingcountriesareeasilyaffectedbycigaretteadvertisementbe
Peopleindevelopingcountriesareeasilyaffectedbycigaretteadvertisementbe
[originaltext]Scientistshavelongthoughtabouttheideaofreplacingadi
Thewayinwhichapersonuseslanguageisaffectednotonlybythevocabula
Thewayinwhichapersonuseslanguageisaffectednotonlybythevocabula
Thewayinwhichapersonuseslanguageisaffectednotonlybythevocabula
Thewayinwhichapersonuseslanguageisaffectednotonlybythevocabula
Thewayinwhichapersonuseslanguageisaffectednotonlybythevocabula
随机试题
Theabilitytolaughatyourownflaws,weaknessesandblundershaslongbee
It’seasytotellpeopletomakeexercisepartoftheirdailyroutine.It’s
PASSAGEFOUR[br]Amongthefivesensesofhumans,whatsenseistheonethatth
Accordingtothefirstparagraph,whatwasamajorfactorintheNewfoundlandcod
社会主义初级阶段的基本矛盾是()A.社会主义与资本主义的矛盾 B.无产阶级与
当DHCP服务器拒绝客户端的IP地址请求时,发送(33)报文。A.DhcpOff
一个新测试中心将在两年内建成。项目发起人和项目经理已经确定并且高层次估算已经开始
关于公司资本不变原则,下列选项说法正确的是( )。A、公司资本永远不能变动 B
根据《关于进一步加强保荐机构内部控制有关问题的通知》,保荐机构应当对保荐项目的重
抑制PG合成酶作用最强的药物是A.保泰松 B.布洛芬 C.吲哚美辛 D.阿
最新回复
(
0
)