首页
登录
职称英语
[originaltext] (26)Scientists claim that air pollution causes a decline in
[originaltext] (26)Scientists claim that air pollution causes a decline in
游客
2023-09-09
32
管理
问题
(26)Scientists claim that air pollution causes a decline in the world’s average air temperature. In order to prove that theory, ecologists have turned to historical data in relation to especially huge volcanic eruptions. They suspect that volcanoes effect weather changes that are similar to air pollution.
One source of information is the effect of the eruption of Tambora, a volcano in Sumbawa, the Dutch East Indies the former name of the Republic of Indonesia in April 1815. The largest recorded volcanic eruption, (27)Tombora threw 150 million tons of fine ash into the sky. The ash from a volcano spreads worldwide in a few days and remains in the air for years. Its effect is to turn incoming solar radiation into space and thus cool the earth. For example, records of weather in England show that between April and November 1815, the average temperature had fallen 4.5F. During the next twenty-four months, England suffered one of the coldest periods of its history. Farmers’ records from April 1815 to December 1818 indicate frost throughout the spring and summer and sharp decreases in crop and livestock markets. (28)Since there was a time lag of several years between cause and effect, by the time the world agricultural commodity community had deteriorated, no one realized the cause.
Ecologists today warn that we face a twofold menace. The ever-present possibility of volcanic eruption, such as that of Mt. St. Helens in Washington, added to man’s pollution of the atmosphere with oil, gas, coal, and other polluting substances, may bring us increasingly colder weather.
选项
A、They were evident in the decreased world temperature.
B、They were of several days’ duration worldwide.
C、They were felt mainly in the Dutch East Indies.
D、They were immediately evident to the world’s scientists.
答案
A
解析
听力短文的开头部分通常传递重要信息。文章开头提到空气污染使全球平均气温下降。为了证明这一理论,生态学家转向对火山爆发历史数据的研究,因为他们怀疑火山爆发给气候带来的影响与大气污染的影响一样。因此提到Tambora火山的目的就是说明其爆发对气候的影响,故选择A。
转载请注明原文地址:https://tihaiku.com/zcyy/2998620.html
相关试题推荐
[originaltext]Therearetwofactorswhichdetermineanindividual’sintelli
[originaltext]M:Doyouknowthethingthat’salwaysstruckmeasoddaboutopi
[originaltext]M:Doyouknowthethingthat’salwaysstruckmeasoddaboutopi
[originaltext]M:Doyouknowthethingthat’salwaysstruckmeasoddaboutopi
[originaltext]M:Doyouknowthethingthat’salwaysstruckmeasoddaboutopi
[originaltext]W:Yoursurveysoundsverygood.Howmanypeoplefilleditin?M:
[originaltext]W:Holditrightthere.Putyourhandsagainstthewall.M:ButI
[originaltext]W:Holditrightthere.Putyourhandsagainstthewall.M:ButI
[originaltext]W:Holditrightthere.Putyourhandsagainstthewall.M:ButI
[originaltext]W:Holditrightthere.Putyourhandsagainstthewall.M:ButI
随机试题
[originaltext]Father:Hello.Mary:Hello!Dad?Father:Yes,Mary!Howa
PassageFour[br]Accordingtothepassage,whatcanwelearnaboutsomehighly
某地一大酿酒厂要建一小型污水处理厂,需开挖1.5m深的基坑,无降水措施,放坡不大
X射线通过人体后,透射线强度与原射线的关系是A.指数衰减关系 B.线性衰减关系
从哲学角度上看,信息具有物质的()等。A.客观性 B.普遍性 C.有用性
断路器拒绝分闸的原因有()。A.断路器操作控制箱内“远方--就地”选择开
根据以下资料,回答 2013年末全国共有群众文化机构44260个。比上年末增加
下列关于中国银行业协会中常务理事会的人员构成的描述,错误的是()。A.常务理
(2019年真题)甲企业为增值税一般纳税人,2019年8月销售空调取得含增值
喷射混凝土强度检测试件的现场制作不宜采取()方法。A.凿取 B.钻取 C.喷
最新回复
(
0
)