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45.The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Suns very center. It is here that is to be found the source of the energy that the Sun constantly pours out i

发表于:2018-11-28 / 阅读(400) / 评论(0) 分类 新概念优美背诵短文50篇

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-12 / 阅读(145) / 评论(0) 分类 英语小短文

[00:00.80]When the atmospheric concertrations [00:03.16]of these gases increase, however, [00:05.84]more heat is trapped and the Earth's [00:07.92]temperature rises. [00:10.37]Over the last 100 years, [00:13.01]the global average temperature [00:15.1

发表于:2018-12-13 / 阅读(155) / 评论(0) 分类 北师大版高中英语模块8(选修)

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the

发表于:2018-12-15 / 阅读(228) / 评论(0) 分类 新东方背诵文选

MICHEL MARTIN, HOST: Mars is about to get a new visitor from Earth tomorrow. If all goes well, a NASA probe called InSight will land near the Martian equator. Its mission is to study the interior of the planet. But, before it can carry out its missio

发表于:2018-12-18 / 阅读(131) / 评论(0) 分类 2018年NPR美国国家公共电台11月

Using science as a guide, we attempt to recreate the final moments of the dinosaurs. 我们以科学为指引,试图重建恐龙的最后时刻。 The first effect was the impact itself. 第一个效果是撞击本身。 So when a 10-kilometer diam

发表于:2018-12-28 / 阅读(87) / 评论(0) 分类 侏罗纪搏击俱乐部

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-30 / 阅读(115) / 评论(0) 分类 考研背诵50篇

Broadcast: Jan 21, 2003 By Gary Garriott Drying food is a simple, low-cost way to keep food safe for eating. Drying removes water that small organisms use to break down food into other substances. Som

发表于:2019-01-02 / 阅读(158) / 评论(0) 分类 VOA2003(上)-社会广角

今天我们要学的词是source。 Source, 意思是来源。 Social Security is a reliable income source for seniors, 社会保障是美国老年人可靠的收入来源。 Police have received thousands of tips, according to a source close to the

发表于:2019-01-07 / 阅读(145) / 评论(0) 分类 英语每日一词

By Kari Barber Dakar 21 March 2008 In many African countries, few people have access to computers and the Internet. Experts say this is hindering development and preventing students from being able to compete for jobs. At a conference in Dakar this w

发表于:2019-01-07 / 阅读(168) / 评论(0) 分类 VOA标准英语2008年(三月)

The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-01-08 / 阅读(196) / 评论(0) 分类 英语小短文

Samasource Provides Jobs for Poor Via the Internet The World Bank says 1.3 billion of the world's seven billion people live in extreme poverty, surviving on less than $1.25 a day. Aid organizations have long relied on charitable contributions to help

发表于:2019-01-13 / 阅读(170) / 评论(0) 分类 VOA标准英语2011年(十二月)

Kenya Moves Full-Steam Ahead on Geothermal Production Kenya is expanding plans to become one of the worlds top geothermal power producers with the start of explorations at a site called Menengai. The government is also aiming to make geothermal Kenya

发表于:2019-01-13 / 阅读(143) / 评论(0) 分类 VOA标准英语2011年(十一月)

When summer hits, I dread jogging outside. But a study finds that elephants can be in true danger in the heat. As creatures get bigger, they have smaller surface area to body volumn ratios. Fully-grown Asian eleplants thus pack a lot of mass into a b

发表于:2019-01-20 / 阅读(127) / 评论(0) 分类 Scientific American(五)月

今天我们要学的词是heat。 大家都知道heat是高温的意思,那么不难想象,引伸一下,heat也可以理解为压力。还有两个多星期,美国2008年总统大选的初选就要拉开帷幕了。 Democratic leading candid

发表于:2019-01-20 / 阅读(124) / 评论(0) 分类 英语每日一词

Todd: So one very popular conspiracy theory is the moon hoax. Jonathan: Yes, that's always a very funny one to hear people talk about. They saw this one program on Fox which had five or six points which look so impressive, you know, when you've got t

发表于:2019-01-20 / 阅读(113) / 评论(0) 分类 原版英语对话1000个

Alan, Canada speaker How do I get my news? Well, when I lived in Canada I got my news from primarily watching television and reading the newspaper. But since I moved over to Asia and started using computers more and more I find that I get my main sou

发表于:2019-01-23 / 阅读(236) / 评论(0) 分类 一起闲话英语-English Chitchat

AGRICULTURE REPORT - Solar Food Dryers By Gary Garriott Broadcast: Tuesday, March 01, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Drying food is a simple, low-cost way to keep

发表于:2019-01-30 / 阅读(120) / 评论(0) 分类 农业与发展

Mercury's core makes up about 60% of the planet by mass. It's about twice as big as earth. Why would it have such a huge core for such a small planet? Some people think there was a huge impact. Kind of stripped off a lot of the planet and now what we

发表于:2019-02-05 / 阅读(102) / 评论(0) 分类 自然百科2012年

We might not be alone in the universe. Actually, it may be confirmed as a very crowded place by new computer models developed to help identify habitable planets. Estimates of places that can sustain life have been based on the likelihood of them havi

发表于:2019-02-13 / 阅读(89) / 评论(0) 分类 英语听力精选进阶版
学英语单词
admanuensis
agranuclocytosis
aldanite (thorianite)
alignment by sight
allenoic acid
aniline salt
anthro-
argutious
aristichthys nobilis
atomics
avian penumoencephalitis
azulene lactone
bismuth(ii) oxide
block ice
Bozeman's catheter
Clearmindedness
coimage of a morphism
colletotrichum spinaciae ellis et halsted
common mind
cooking compartment
Cordelias
coregular representation
countries which are not parties to the convention
cryne
daiei
deck decompression chamber (ddc)
depleted value
Desert Hot Springs
development effort
die mold
discounted benefit/cost ratio
etizolam
extra-floral
Fanta Shet'
fluorescence crack detection
fly wire
foco
grinkcome
group contribution
herringbone bond
hipposideros armiger
Hope Valley
inbold
infrared fiber device
insurance against srcc
International Union of Railways
international volt
intragalactic
jafnea fusicarpa
jalaps
Kyuptsy
lateral damper
like as not
low frequency electrical porcelain
magnetic wave
magnetic-deflection tube
main bronchus
manganonatrolite
microbit drilling test
multi-daylight platen press
neural assembly
non-commercial vehicle lift
ocean floors
odd span
one-plus-one instruction
panorama lift
paper diaper
perihernial
polymethyl methacrylate (Perspex)
polypodium amoenum wall.
power amplification device
pressed powder
private trust
prodenia litura
Raucourt-et-Flaba
rich-bound
roborate
rotation perception
Rustavi
safety gap distance
scumbaggy
sepia tenuipes
sinking creek
skip before
social tension
speed limits
step off the big plank
stomatal pit
Story County
Straloch
subindividual
super-cool
Switch card
the capital account
therapin
thumb opposality
Tofua
Tseajaia
uredo kyllingae-brevifoliae
volt-amps
Y-insulation
zambos