首页
登录
职称英语
Scientists claim that air pollution causesa decline in the world’s average a
Scientists claim that air pollution causesa decline in the world’s average a
游客
2023-12-11
52
管理
问题
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 historic data 【M1】______
in relation to especially huge volcanic
eruptions. They suspect that volcanoes
effect weather changes that are similar with 【M2】______
air pollution.
One source of information is the affect of 【M3】______
the eruption of Tambora, a volcano in
Sumbawa, the Dutch East Indies, in April
1815. The largest recorded volcanic eruption,
Tambora threw 150 million tons of fine ash
into the stratosphere. The ash from a volcano
spreads worldwide in a few days and remain 【M4】______
in the air for years. Its effect is to turn
incoming solar radiation into space and
however cool the earth. For example, 【M5】______
records of weather in England show between
April and November 1815, the average
temperature has fallen 4.5 F. During the 【M6】______
next 24 months, England suffered one of
the cold periods of its history. Farmer’s 【M7】______
records from April 1815 to December 1818
indicate frost throughout the spring and
summer and sharp decreases in crop and
livestock markets. Since there was a time
lag of several years between reason and 【M8】______
effect, by the time the world agricultural
commodity community has deteriorated,
no one realized the cause.
Ecologists today warn that we fane with 【M9】______
a twofold men-ace. The even-present
possibility of volcanic corruptions, 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 increasing 【M10】______
colder weather. [br] 【M6】
选项
答案
has改成had
解析
根据上下文意义,此处交代的是1815年的情况,因此过去时较合适。
转载请注明原文地址:https://tihaiku.com/zcyy/3265031.html
相关试题推荐
Thecommitteewasconsistedofscientistsanddoctors,aimingatsolvingthepro
Accordingtoarecentstudy,theJapaneseincreasinglyisseeingadeclineofth
Lyingundertheskull,thehumanbraincontainsanaverageof______nervecellsc
ScientistssaidThursdaythatanewAIDSvaccine,thefirsteverdeclaredto
ScientistssaidThursdaythatanewAIDSvaccine,thefirsteverdeclaredto
ScientistssaidThursdaythatanewAIDSvaccine,thefirsteverdeclaredto
WhenscientistsattheAustralianInstituteofSportrecentlydecidedtoche
WhenscientistsattheAustralianInstituteofSportrecentlydecidedtoche
Thenewsismainlyabout______.[originaltext]Scientistssaythatnighttime
Bynow,itshouldcomeasnosurprisewhenscientistsdiscoveryetanotherc
随机试题
Inthepast,youngpeopleinJapanwereexpectedtotakeonresponsibilities
EachyearUniversum,aSwedishconsultingfirmasksAmericanMBAstudentswh
Onlythroughreadingthebook_____________________(我们才发现一些鸟每年都有会在炎热和寒冷的国家之间迁徙两次
宋初诗坛流行的诗歌流派主要有()。A.白体 B.西昆体 C.晚唐体 D.
若在区间(a,b)内,f′(x)=g′(x)则下列等式中错误的是()。A.f
减压阀宜采用比例式减压阀,当超过()时,宜采用先导式减压阀。A.2.0MPa
2005年,我国发布《国务院办公厅关于加快电子商务发展的若干意见》(国办发【20
股骨颈骨折后发生股骨头缺血坏死,最主要的原因是A.来自圆韧带内小凹动脉供血中断
我国期货交易所根据工作职能需要设置相关业务,但一般不包括()。A.交易部门
根据《工程建设项目施工招标投标办法》规定,施工投标保证金数额一般不得超过投标总价
最新回复
(
0
)