时间:2018-12-30 作者:英语课 分类:托福听力短文


英语课
(WA) One reason oceanographers analyze 1 the sediment 2 on the ocean floor is to see how long-terms changes in Earth's temperature have affected 3 the depth of the ocean. By analyzing 4 the remains 5 of sea animals in old layers of ocean sediment, oceanographers can determine the depth of the ocean in the past. They've analyzed 6 hundreds of such layers, including some from the coldest periods of Earth's history --- the ice ages. What they've found is that during the ice ages, the amount of water in the oceans decreased. Water levels in the ocean dropped by about four hundred feet. Water from the ocean evaporated and became frozen in continental 7 glaciers 8, so it didn't drain back into the ocean. When temperatures eventually rose again, the glaciers melted, and the oceans returned to their former depths. Analysis of sedimentary data indicates that periods of glacial freezing and melting occurred in regular cycles of twenty thousand, forty thousand, and one hundred thousand years.

Oceanographers are interested in the history of seawater levels because they hope to use this historical data in order to predict the possible effect that global warming could have on seawater levels. If industrial pollutants 9 are capable of heating global temperatures to the point that glaciers begin to melt, it is urgent for us to know precisely 10 how high sea levels will rise as a result.


vt.分析,解析 (=analyse)
  • We should analyze the cause and effect of this event.我们应该分析这场事变的因果。
  • The teacher tried to analyze the cause of our failure.老师设法分析我们失败的原因。
n.沉淀,沉渣,沉积(物)
  • The sediment settled and the water was clear.杂质沉淀后,水变清了。
  • Sediment begins to choke the channel's opening.沉积物开始淤塞河道口。
adj.不自然的,假装的
  • She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
  • His manners are affected.他的态度不自然。
v.分析;分析( analyze的现在分词 );分解;解释;对…进行心理分析n.分析
  • Analyzing the date of some socialist countries presents even greater problem s. 分析某些社会主义国家的统计数据,暴露出的问题甚至更大。 来自辞典例句
  • He undoubtedly was not far off the mark in analyzing its predictions. 当然,他对其预测所作的分析倒也八九不离十。 来自辞典例句
n.剩余物,残留物;遗体,遗迹
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析
  • The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
  • The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程,因为对他来说,爱是个不可分析的迷。 来自《简明英汉词典》
adj.大陆的,大陆性的,欧洲大陆的
  • A continental climate is different from an insular one.大陆性气候不同于岛屿气候。
  • The most ancient parts of the continental crust are 4000 million years old.大陆地壳最古老的部分有40亿年历史。
冰河,冰川( glacier的名词复数 )
  • Glaciers gouged out valleys from the hills. 冰川把丘陵地带冲出一条条山谷。
  • It has ice and snow glaciers, rainforests and beautiful mountains. 既有冰川,又有雨林和秀丽的山峰。 来自英语晨读30分(高一)
污染物质(尤指工业废物)( pollutant的名词复数 )
  • Pollutants are constantly being released into the atmosphere. 污染物质正在不断地被排放到大气中去。
  • The 1987 Amendments limit 301(g) discharges to a few well-studied nonconventional pollutants. 1987年的修正案把第301条(g)的普通排放限制施加在一些认真研究过的几种非常规污染物上。 来自英汉非文学 - 环境法 - 环境法
adv.恰好,正好,精确地,细致地
  • It's precisely that sort of slick sales-talk that I mistrust.我不相信的正是那种油腔滑调的推销宣传。
  • The man adjusted very precisely.那个人调得很准。
学英语单词
accounting periods
adjudicate on a matter
age-by-age
air shrinkage
Bictocil
bilivistam
black rockweed
bound drug
carlishness
catheterise
central file system
China Salvage Company
conceptual montage
cyberinfrastructures
dead card
department of finance
developed surface flaw
device block
dumortierites
each run
emend
flange beam
flathe
fly in the face of Providence
fly title
fright-wig
garmentless
generative method
gluteus mediuss
hairsplitting
inaspsb laser
inter-program communication data division
interceptor missile
inventory tag
irrotational flow
isoalloxazine
Ivory coast tektite
Kāl Gūsheh
La Coruna
Leh.
litum
log-home
longyearbyens
loops and whorls on a finger
macropera
marking head
mathematical transformation
mind-body
mine development
mingledly
monisha
nonrestoring division
onuxodon margaritiferae
organic solution
Parakun
penicillium indonesiae
periodic rating
periodic reordering
peroxysome
Phuoc Hiep
pledant
pneumatic gun nailer
Possel
preference order
Pugionium
quasi-metric
radiation pneumonitis
radiation proof
rangeview
reamer with staggered straight flutes
rectangular hysteresis material
resonance absorption band
role-players
safe navigable speed
Salvora, Illa de
sarsar
scrawny
semifusain
serve the function of
single yarn breaking strength
student-evaluation
sump fuse
Synotis xantholeuca
system product division
tamilian
tetraethyl ethanetetracarboxylate
The Principle of Equality of Treatment in Port
to land
ture solution
Tyabb
unwielded
USCIS
valances
Vilas
vinca alkaloids
warm room
water yield
wave shed
weir gate
with two arms hanging on both sides
yakushev
zithern