有限阶段模型

We must accept finite disappointment, but we must never lose infinite hope. 我们要接受失望,因为它是有限的;但千万不可失去希望,因为它是无穷的。 图片1

发表于:2018-12-02 / 阅读(292) / 评论(0) 分类 Daily English-2017.04

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(227) / 评论(0) 分类 火星生命

I think it is exciting. Because it would imply that if life arose independently on Mars. The implication is that life is pervasive throughout the universe. This is why Mars has so obsessed scientists.

发表于:2018-12-07 / 阅读(214) / 评论(0) 分类 火星生命

William Boynton is professor of planetary sciences at the University of Arizona. And he's dedicated his life to looking for water on Mars. The link between life and water is very strong. Even here in

发表于:2018-12-07 / 阅读(216) / 评论(0) 分类 火星生命

My mum always said, the things we lose have a way of coming back to us in the end. 语音讲解: 单词发音 always /ˈɔːlweɪz/ said /sed/ end /end/ 词间连读 coming back to us in the end /ˈkʌmɪŋbktəwəzɪnijend/ 词汇讲解 lose verb.

发表于:2018-12-18 / 阅读(209) / 评论(0) 分类 自然拼读教材英语字母拼读法(学生用书)Book 3-2

Black holes got their name because light can't escape them, beyond a certain radiusthe event horizon. But in 1974 Stephen Hawking proposed that quantum effects at the event horizon might cause black holes to benot completely black. Hawking said that

发表于:2018-12-24 / 阅读(175) / 评论(0) 分类 2016年Scientific American(八)月

【阶梯英文】 hope infinite hope lose infinite hope We must never lose infinite hope. We must accept finite disappointment,but we must never lose infinite hope. 【阶梯中文】 希望 无限的希

发表于:2018-12-26 / 阅读(285) / 评论(0) 分类 阶梯听力天天练

Life on Earth is basically proteins and DNA, so we can wonder if there is life on Mars will also be DNA and proteins, the same type of DNA, the same type of proteins. One might think that DNA is such

发表于:2019-01-02 / 阅读(209) / 评论(0) 分类 火星生命

But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa

发表于:2019-01-02 / 阅读(250) / 评论(0) 分类 火星生命

The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee

发表于:2019-01-02 / 阅读(230) / 评论(0) 分类 火星生命

One of these wavelengths corresponds to hydrogen, another wavelength would be iron. Another wavelength would be oxygen. And so you go to the part of the spectrum you are interested in and you see you'

发表于:2019-01-02 / 阅读(233) / 评论(0) 分类 火星生命

23. Some scholar conclude that a government with finite resources should simply stop paying for medical care that sustains life beyond a certain age say 83 or so. 【分析】多重复合句。句子的主干是Some scholars conclude that。conclude后

发表于:2019-01-16 / 阅读(176) / 评论(0) 分类 考研英语长难句讲解

I had everything to prove to my family, but more to prove to myself. Like every young man, I had to make my own way. 语音讲解: 1.连读技巧:辅音+元音 2.prove 英音:/pruːv/美音:/pruv/ 3.own 英音:/əʊn/美音:/on/ 独自闯荡

发表于:2019-01-17 / 阅读(215) / 评论(0) 分类 跟着Gwen学英语之每日早读

You have bewitched me, body and soul, and I love, I love, I love you. 语音讲解: 单词发音 bewitched /bɪˈwɪtʃt/ soul 英 /səʊl/ 美 /soʊl/ 词间连读 you have bewitched me /juhəvbɪˈwɪtʃtmi/ 词汇讲解: bewitch verb. 入迷 S

发表于:2019-01-17 / 阅读(210) / 评论(0) 分类 跟着Gwen学英语之每日早读

It's time for you to fight your own battles. 语音讲解: 单词发音 fight /faɪt/ battles /ˈbtlz/ 词间连读 fight your own battles /faɪtʃɔːrəʊnˈbtlz/ 词汇讲解: fight noun. verb. 1.fight(against/with sb./sth.)与搏斗,作战

发表于:2019-01-17 / 阅读(166) / 评论(0) 分类 跟着Gwen学英语之每日早读

爱是心灵的相守

发表于:2019-01-17 / 阅读(216) / 评论(0) 分类 阅读空间

1) 表示动作中状态的词叫做动词。 2) 根据其在句中的功能,动词可分为四类,分别是:实义动词(Notional Verb)、系动词(Link Verb)、助动词(Auxiliary Verb)、情态动词(Modal Verb)。 说明:有些情况下,有些动词是兼类词,例如: We are having a meeting. 我

发表于:2019-02-03 / 阅读(186) / 评论(0) 分类 英文语法词汇

Only two things are infinite: the universe and human stupidity. Im not sure about the former, but I know of a third example, human genius. 语音讲解 单词发音 only /ˈəʊnli $ ˈoʊn-/ infinite /ˈɪnfənət/ stupidity -y结尾的单词重读落

发表于:2019-02-13 / 阅读(221) / 评论(0) 分类 跟着Gwen学英语之每日早读

在GRE写作、GMAT写作以及TOEFL写作中,合作的概念考查总计多大60道考题,但是对于这个看似简单的高频话题,很多同学往往缺乏深入的分析和理解,下面我通过中英文的讲解让大家能够深入理解

发表于:2019-02-19 / 阅读(164) / 评论(0) 分类 GRE作文

Idiom: Let's call it a day (it is time to stop working on something) Hit the book: Why is looking out into space the same as looking back in time? Why do people sometimes say that when we look at stars that are very far away that we are looking back

发表于:2019-02-26 / 阅读(233) / 评论(0) 分类 趣味青春英语
学英语单词
active/inactive flag
Amamula
arow
BDRP
Blatta
boost propellant
bottom wing
cable drum carriage
came at
carpenter bee
cast investment
category of speech
caustic effect
changing priority of batch job
clapbread
climbing shrub
complex multiplier register
compliance audit technique
copris (copris) fukiensis
counter-marque
curved isobar
custom processor
decree-law
diethylpyrocarbonates
dihydroquinidine
dividing stripe greening
Doddridge
drop ins
during cycle
Dussumieridae
dysfunctional expectancy
economy of plenty
elastic field
Etanautine
ethnarches
exact in
feel of
finction
flocked
Fort Saint James
free wheeling mechanism
gastro-esophageal hernia
government public relations
hard wheat flour
heat of isomerization
heat-of-absorption
height zoning
heteromorphic chromosomes
homebuying
Impatiens yunnanensis
Izmail
Lokala
manufacturing operating system
martinons
mladic
moist meadow
more-active
nagus
next big things
non-interest bearing discount bond
non-scheduled units
object relational mapping
olmstead
on-site service
overhanging spring
P-mitral
Pahāsu
pantoscop
paradoxuruss
plasterwise
pot-boiler
print capitalism
privacy network
rational spectral density
reactionarism
right arrow
scheduled period
self regard
spinolas
substitute reproductive cast
Sulfonin
synthetic resin glue
take sth. hard
Taxidea taxus
the definite article
thermoelasticity of solids
thrust section
time elapsed
time-variable data
topographical meridian
trimethylhydroxylysine
tritium oxide
tzatziki
underpullers
upper transit
upward-compatible
Vendemiaire
visual display interface
voter service
win sympathy of
working cloth