非天然同位素成分

87 natural resources words coal metal iron ore oil water precious metal diamond export import refine mine mining miner drill(ing) engineer supply infrastructure wood stone pure natural aluminium oil well phrases drill for oil explore for oil discover

发表于:2018-11-27 / 阅读(367) / 评论(0) 分类 情景英语口语100主题

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. The Earths crust is old. Billions of years old. So old that its nearly impossible to imagine. And now scientists have discovered what may be the oldest

发表于:2018-12-24 / 阅读(207) / 评论(0) 分类 Scientific American(九)月

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 knowledgeable [ 5nClidVEbl ] He made s

发表于:2018-12-30 / 阅读(194) / 评论(0) 分类 每日攻克5词

The students in the composition class were assigned the task of writing an essay on the most beautiful thing I ever saw. The student who, of all the members of the class seemed the least sensitive to beauty, handed in his paper first with astonishin

发表于:2019-01-02 / 阅读(182) / 评论(0) 分类 英文笑话

It was a very busy evening. I was doing my homework at my home. My father was writing a composition in the study room. My mother was interested in Shanghai opera. She was watching a Shanghai opera contest. The apartment was very quiet. Suddenly the l

发表于:2019-01-03 / 阅读(173) / 评论(0) 分类 英语作文

The script of this programme 本节目台词 Face to face with dinosaurs at the Natural History Museum Sun Chen: Where are we? This place is like Jurassic Park. 这个地方,怎么那么像电影侏罗纪公园啊? Neil: That's true. Welcome to On the Town from BBC Lea

发表于:2019-01-06 / 阅读(264) / 评论(0) 分类 都市掠影

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Theres definitely methane on Marsand there are seasonal variations of how much is being released into the thin Martian atmosphere. Which means that Mar

发表于:2019-01-08 / 阅读(194) / 评论(0) 分类 Scientific American(一)月

What does an 800-pound gorilla eat? If you said: anything it wants, youre not thinking like a scientist. A scientist would say, Let me analyze the isotopic composition of its excreta and Ill get back to you. Because a new study shows that the ratio o

发表于:2019-01-08 / 阅读(175) / 评论(0) 分类 Scientific American(十二)月

Song:100% Natural Artist:Alsou Natural Oooh, yeah At the the centre of me, baby would you believe That I am everyything that I was born to be Why would I cover up What comes natural enough I have everything that god has given me I won't hide, who

发表于:2019-01-11 / 阅读(208) / 评论(0) 分类 英语热力歌曲

Scientists Closer to Solving Plain of Jars Mystery A new group of human remains has been uncovered on the Plain of Jars in Laos. They are believed to date back to the Iron Age, some 2,500 years ago. The Plain of Jars is in the central Lao province of

发表于:2019-01-12 / 阅读(174) / 评论(0) 分类 2016年VOA慢速英语(三)月

(1) We study spoken English so as to make oral communications, so this order of importance of oral English study should be followed: Fluency, Accuracy, and Appropriateness. That is to say, we have to pay more attention to practical communicating abil

发表于:2019-02-12 / 阅读(189) / 评论(0) 分类 实用英语

Compston's machine allowed such rocks to be dated with unparalleled precision. 康普斯森的仪器能以无与伦比的精确度测定这些岩石的年代。 The prototype SHRIMP was built and machined in the Earth Science department's own worksho

发表于:2019-02-17 / 阅读(197) / 评论(0) 分类 万物简史

(1). We study spoken English so as to make oral communications, so this order of importance of oral English study should be followed: Fluency, Accuracy, and Appropriateness. That is to say, we have to pay more attention to practical communicating abi

发表于:2019-02-18 / 阅读(198) / 评论(0) 分类 英语口语

1). We study spoken English so as to make oral communications, so this order of importance of oral English study should be followed: Fluency, Accuracy, and Appropriateness. That is to say, we have to pay more attention to practical communicating abil

发表于:2019-02-18 / 阅读(193) / 评论(0) 分类 英语学习方法

提高英语口语的方法 (1). We study spoken English so as to make oral communications, so this order of importance of oral English study should be followed: Fluency, Accuracy, and Appropriateness. That is to say, we have to pay more attention to

发表于:2019-02-19 / 阅读(192) / 评论(0) 分类 英语学习方法

高效的英语口语学习方法 口语学习方法总汇,但方法毕竟只是方法,它最终无法取代刻苦的学习,一起来看看总结出来的口语学习方法都有哪些吧。 (1)。We study spoken English so as to make oral comm

发表于:2019-02-19 / 阅读(271) / 评论(0) 分类 英语学习方法

英语口语的学习方法 方法就是方法,它最终无法取代刻苦的学习。 Oral English:(口语学习方法总汇) (1)。We study spoken English so as to make oral communications, so this order of importance of oral English

发表于:2019-02-19 / 阅读(234) / 评论(0) 分类 英语学习方法

妙招学口语(下) (6)、Oral composition and 3-minute training method: This method is suitable for intense training. Making an oral composition about a certain topic for one minute thefirst time and record the composition on tape at the sameti

发表于:2019-02-26 / 阅读(188) / 评论(0) 分类 英语口语

(1).We study spoken English so as to make oral communications, so this order of importance of oral English study should be followed: Fluency, Accuracy, and Appropriateness. That is to say, we have to pay more attention to practical communicating abil

发表于:2019-03-02 / 阅读(229) / 评论(0) 分类 英语口语

小学英语写作范文:感恩父亲 Dear Dad: You have worked hard! In the past, I am always afraid to you and positive dialogue. Every time something was always afraid to tell you. Because when you face the total serious. Today to take this oppo

发表于:2019-03-17 / 阅读(1737) / 评论(0) 分类 英语作文
学英语单词
abecedariuss
accounts closing procedure
acetanilide
ammobiums
ampere-wire
anticlerical
audrosporogenesis
axle pin
azurely
BBSRC
breach of bail
break the reflnery emulsion
bring sth to a termination
caffled
Cagliari, Prov.di
capital goods
cataractic
ceramides
chinlon safety belt
chionanthus coriaceus
clematis tanguticas
common european earwigs
counter field emission
cross sb.'s hand
cy youngs
demony
dental curve
depreciation-inventory method
devulgarize
dial barometer
do I know you
doublechopper
eclogitic
electron beam melting
enyne
fault and privity
finger-sucking
FTCR
gate arrays
Gatting
grizzell
head office ledger account
hex bolt
holeshots
horatio walpoles
housewiving
incorporal
Indium(113mIn)
intermediate fuel oil
jar culture analysis
Kaliphite
Keynesian policy
laid fire laid-up fleet
laryngoscopist
Lawsville Center
leather-hunting
lepidotrichia
line engine
milling orange
misattunements
Muller's method
nembas
nettle families
noaec
non exclusive licence
non-assertiveness
open coated capillary
OSI service
pattern stripping draft
paving block
perspection
pick-and-choose
premasticated
procedure server transfer module
pulse doppler spectrum
radial-flow
respectivist
riyaq (rayak)
roped party
Schiller, Johann Christoph Friedrich von
semi-coherent
sibiricus
sixpenny
sixth-placer
solar battery
speak for
stage-one
statistical decomposition
striking hard
strontia hydrate
stufflebeem
subluxation of wrist
supplementary
Tetley
thunder gust
time averaged velocity
Timmernabben
transient alkalinuria
true speed
what's-his-faces
wood work shop
woody plant community