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
2024-06-01
36
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/3614886.html
相关试题推荐
[originaltext]Thankyouforcomingtothismeetingforstudentswhowillbe
[originaltext]M:Lookatthosecolorfulbirdsoverthere.Ithinkyoucanteach
[originaltext]M:Lookatthosecolorfulbirdsoverthere.Ithinkyoucanteach
[originaltext]M:Lookatthosecolorfulbirdsoverthere.Ithinkyoucanteach
[originaltext]M:Lookatthosecolorfulbirdsoverthere.Ithinkyoucanteach
[originaltext]M:Lookatthosecolorfulbirdsoverthere.Ithinkyoucanteach
[originaltext]Let’sperceivetothemainexhibithallandlookatsomeoft
[originaltext]Let’sperceivetothemainexhibithallandlookatsomeoft
[originaltext]Let’sperceivetothemainexhibithallandlookatsomeoft
[originaltext]Goodevening.YouarelisteningtoPopWorldofBCDInternati
随机试题
Humanwantsseemendless.Whenastarvingmangetsameal,hebeginstothin
随着电子商务的兴起和网购的流行,快递业(expressdeliveryindustry)应运而生。快递公司提供上门收件服务,收件后就会以尽可能快的速
Itdisgustedhimwhenatheistsattackedreligion;hethoughttheywerevulgar.A、
【S1】[br]【S9】E该题应填入一个名词,该词在句中充当宾语成分。从语境看,美国残疾人法案是为保护残疾人权利设立的,空格所在单词表示该法案所禁止的不利于
肝硬化并发肝门静脉高压症患者典型的临床表现是A.黄疸、腹水、脾大 B.腹水、脾
因合同纠纷提起的诉讼,只能由被告住所地管辖。()
共用题干 患者,男性,41岁。急诊入院,目前处于昏迷状态,患者呼吸时有痰鸣音并
Allpassengersshouldpresenttheir____
在了解X公司及其环境、评估重大的错报风险时,A注册会计师发现X公司2019年度主
下列投资活动中,属于直接投资的是()。A.购买普通股股票 B.购买公司债
最新回复
(
0
)