[网络] 有机体;生物体

AGRICULTURE REPORT - Don't Know Much About Mulch?By George Grow Broadcast: Tuesday, January 24, 2006 I'm Faith Lapidus with the VOA Special English Agriculture Report. Mulch is important to farmers. M

发表于:2018-12-07 / 阅读(210) / 评论(0) 分类 2006年慢速英语(一)月

These discoveries raised the stakes. Here was a planet similar to our own. Mars might not have cities or civilizations. But it could be home to other smaller life forms like microbes. Chris McKay is N

发表于:2018-12-07 / 阅读(248) / 评论(0) 分类 火星生命

Rock-Consuming Organisms Alter Views of Life Processes LOS ANGELES Kenneth Nealson can be described in many ways, including expert in microbiology and biochemistry. But that's not the one he is most proud of. People call me the 'father of Shewanella,

发表于:2018-12-08 / 阅读(195) / 评论(0) 分类 VOA标准英语2015年(一月)

This is Scientific Americans 60-Second Science, Im Steve Mirsky. Got a minute? Theres a cool new Web siteand iPhone appthat could come in handy in a wide variety of circumstances. Its called Time Tree. And it tells you how closely related any two org

发表于:2018-12-24 / 阅读(159) / 评论(0) 分类 Scientific American(九)月

[00:04.36]American officials are seeking ways for cities to grow without expanding into surrounding open space. [00:14.00]They are trying to rebuild the centers of older industrial cities. [00:19.91]And they want to help people use less resources suc

发表于:2018-12-26 / 阅读(215) / 评论(0) 分类 美国英语听力80篇

92 注意街头食品的卫生 DEVELOPMENT REPORT September 10, 2001: Street Food SafetyBy George Grow (Start at 1'01

发表于:2019-01-02 / 阅读(243) / 评论(0) 分类 科技之光

By Mario Ritter Broadcast: October 28, 2003 This is Steve Ember with the VOA Special English Agriculture Report. Farmers have long put animal waste on their fields. They may also use human waste. Mode

发表于:2019-01-02 / 阅读(294) / 评论(0) 分类 VOA2003(下)-农业与经济

This is Scientific American's 60-Second Science, Im Steve Mirsky. Got a minute? Biologists often attempt to construct a genealogy that shows the relationships of all life on earth. One well-accepted effort compares the nucleic acid sequences that cod

发表于:2019-01-08 / 阅读(239) / 评论(0) 分类 Scientific American(五)月

[00:11.60]WARMING UP [00:16.04]How many new uses can you think of for the folowing items? [00:36.49]reminds us of the appearance of nanotechnology, [00:53.76]according to which nothing is useless and [01:04.91]no garbage or waste material to speak of

发表于:2019-01-10 / 阅读(380) / 评论(0) 分类 高中英语人教版高一年级

Cell 细胞 Every living thing has at least one cell. 每个生物至少有一个细胞。 Then, what is a cell? 那么,什么是细胞呢? Every cell works differently, but most cells work to maintain life. 每个细胞的功能都不相同,但大

发表于:2019-01-10 / 阅读(178) / 评论(0) 分类 与美国小学生一起学英文第7册

SCIENCE IN THE NEWS - Condition of Oceans Affects Human Health From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. Im Shirley Griffith. And Im Christopher Cruise. Today, we tell about a new way to measure the health of the worl

发表于:2019-01-12 / 阅读(222) / 评论(0) 分类 2012年VOA慢速英语(十一)月

Hi, its Kasey-Dee Gardner, in this weekend Why Tell Me Why will answer an interesting viewer question. The viewer wants to know why certain species die after they reproduce. So, we're here to find out the answer. Urn, so there are a bunch of species,

发表于:2019-01-22 / 阅读(165) / 评论(0) 分类 自然百科2009年

DEVELOPMENT REPORT - Cooking Meals With the Sun for FuelBy Jill Moss Broadcast: Monday, August 21, 2006 I'm Gwen Outen with the VOA Special English Development Report. Millions of people around the wo

发表于:2019-01-30 / 阅读(202) / 评论(0) 分类 2006年慢速英语(八)月

61 嗅觉灵敏的小猎犬 DATE=7-3-01 TITLE=AGRICULTURE REPORT - Beagle Brigade BYLINE=George Grow (Start at 1'00

发表于:2019-01-30 / 阅读(245) / 评论(0) 分类 文化聚焦

56 自然原因导致夏季食物中毒比率偏高 DATE=6-12-01 TITLE=AGRICULTURE REPORT - Food Poisoning in Summer BYLINE=George Grow (Start at 59

发表于:2019-01-30 / 阅读(272) / 评论(0) 分类 科技之光

Studies show artificial sweetenersmay actually cause weight gain because they stimulatecarbohydratecravings. Excessive sweetener intake may also lead to heart attacks and strokes。 Too much can lead to increased risk of heart attacks,irritability, e

发表于:2019-02-05 / 阅读(162) / 评论(0) 分类 英语新闻视频

For most of that time of life on Earth, living organisms have been relatively simple -- single cells. 地球的大多数时间,生物体多是以简单的单细胞存在的。 But they had great diversity, and, inside, great complexity. 但是它们是

发表于:2019-02-14 / 阅读(201) / 评论(0) 分类 TED演讲教育篇

But of course, life is more than just exotic chemistry. 但是当然,生命不仅仅是奇异的化学物质。 How do you stabilize those huge molecules that seem to be viable? 那是怎么稳定那些大量的、似乎有存活的分子的呢?

发表于:2019-02-14 / 阅读(201) / 评论(0) 分类 TED演讲教育篇

In 1969, in an attempt to bring some order to the growing inadequacies of classification, 1969年,为了整理一下越来越显得不足的分类法, an ecologist from Cornell University named R. H. Whittaker unveiled in the journal Science a pr

发表于:2019-02-17 / 阅读(349) / 评论(0) 分类 万物简史

Earth is alone among the rocky planets in having tectonics, and why this should be is a bit of a mystery. It is not simply a matter of size or densityVenus is nearly a twin of Earth in these respects and yet has no tectonic activity. It is thoughttho

发表于:2019-02-25 / 阅读(235) / 评论(0) 分类 万物简史
学英语单词
a cow of short and stout
active item record count
adaptive cruise control
add-on manager
Addiphos
Angerboda
animal embryo transfer
apoe
aquifer water-bearing stratum
aristidic acid
Arteriae metatarsales dorsales
autotrophies
Ayutthaya Ayuthea
babson
barrier island marsh
beglamours
better self
Bol'shaya Vyatkina
born-haber
briggs-myers type indicator
Bulbophyllum leopardinum
burdell
calcium carboxymethyl cellulose
cavity virus
cinque-and-quater
cluster gage
clutch pedal release arm
conducting ring
cordeau
crackable
cryptocommercialism
CSHEP
custom information control system
d-link
disc-footed pile
dl-methylisopelletierine
dolling up
dry ink
dry labbed
dust removal by filtration
energy valley
ethnogenic association
etropluss
festement
fire me up
foam with rage
foxtrot
free sampling
good stories
gravity-feed line
ham
hang fire
ill fated
impostress
in secrecy
insculptured
Ixelles (Elsene)
Kolle's serum
lattice layer
leistritzs
Mare Chicose
marsouin
mean longitudinal error
Moro's tyberculin
mottled rot
neck grease
neural sclerosis
niggerisms
numbers racket
old-establisheds
on good security
operand descriptor
ovarian varicocele
parametrices
phylum Phoronida
premonocytic
Python molurus
relevent
RSS feed
schizopora flavipora
Scoach
silica crucible
soyaburger
sulphur green-blue CV
synchronizing error
ta chang
Tchanaga
Testoenant
tidal breeze
tidal coefficient
tricholoma populinums
tuberculous dacryocystitis
two-force member
unindented
utiliser
vertical knife lever shears
very-low frequency
volume heat capacity
wagon-headed
working in the vicinity of live part
wrist-pin dearing lubrication
WVDC