化学

1、从某些特殊情况外,专有名词 、抽象名词和物质名词前不加冠词。例如: Wisdom is better than strength. 智慧胜于力量 Blood is thicker than water. 血浓郁水 2、在表示交通工具和科学名称的名词前不加

发表于:2018-12-01 / 阅读(96) / 评论(0) 分类 薄冰实用英语语法详解

[00:03.15]第五单元 复习 [00:06.30]Lesson 17 Read and act [00:09.87]第17课 阅读并表演 [00:13.45]During the break, [00:15.03]课间, [00:16.61]Li Lei happened to see Paul's mark on the report of a chemistry experiment. [00:19.94]李雷偶然

发表于:2018-12-01 / 阅读(123) / 评论(0) 分类 初中英语人教版初三

[00:00.00]Unit 7 Living Together [00:06.77]Expansion 7 [00:08.48]2 School Events [00:13.17]Last week we asked students [00:15.06]to write about their favorite school events [00:17.32]in the year. [00:18.93]Here are some of their replies. [00:21.36]1

发表于:2018-12-04 / 阅读(155) / 评论(0) 分类 新标准初中英语七年级下(2013版)

[00:21.89]lesson 1 [00:36.05]Have/has got =have/has [00:59.22]I have got a CD player, [01:03.97]but Jim hasn't got one. [01:10.92]Has Lucy got one? [01:22.99]I have a CD player, [01:31.66]but Jim hasn't/doesn't have one. [01:50.60]Does Lucy have a Cd

发表于:2018-12-10 / 阅读(135) / 评论(0) 分类 初中英语人教版初三

[00:03.89]Lesson 5 1 Dialogue [00:09.64]Mr Zhu is showing the students of Class 4 the chemistry lab. [00:16.30]Mr Zhu: Now,this is the chemistry lab. [00:20.45]Have you been in this lab before? All:No. [00:25.50]Mr Zhu: Ok,listen carefully,please. [0

发表于:2018-12-13 / 阅读(166) / 评论(0) 分类 高中英语人教版高一

[00:09.20]Lesson 17 1.Read and act [00:15.36]During the break, [00:18.52]Li Lei happened to see Paul's mark on the report of a chemistry experiment. [00:25.08]Oh,Paul,you got another A+. Congratulations! [00:30.64]Thank you. [00:33.20]I wonder how yo

发表于:2018-12-18 / 阅读(210) / 评论(0) 分类 人教版九年级英语

发表于:2018-12-25 / 阅读(114) / 评论(0) 分类 洋话连篇

As It Is - Remember Your Chemistry Classes? An international team of researchers recently reported creation of a new element that is 40 percent heavier than lead. The researchers successfully developed what they are calling Element Number 117 at a la

发表于:2019-01-03 / 阅读(126) / 评论(0) 分类 2014年VOA慢速英语(八)月

Having the opportunity to take on a diverse range of classes such as economics and chemistry along with her music studies is the perfect combination for Diane. Marsha James | Washington DC 10 August 2010 Oberlin Conservatory of Music Student Diane Ly

发表于:2019-01-13 / 阅读(103) / 评论(0) 分类 VOA标准英语2010年(八)月

This years Nobel Prize in Chemistry is about the worlds smallest machines. G?ran Hansson, secretary general of the Royal Swedish Academy of Sciences, earlier this morning. The Royal Swedish Academy of Sciences has decided to award the 2016 Nobel Priz

发表于:2019-01-17 / 阅读(146) / 评论(0) 分类 2016年Scientific American(十)月

Those planets are all going to be so hot, and you cant develop something as complex as life. Scientists have gone back to the drawing board, looking to find worlds capable of supporting life, small rocky planets like earth. We dont know that life has

发表于:2019-01-22 / 阅读(86) / 评论(0) 分类 自然百科2010年

JEFFREY BROWN:And now to part two of our investigative look at the safety of America's drinking water. Science correspondent Miles O'Brien reports on the toxic chemical made famous in the movie Erin Brockovich, its potentially harmful effect on human

发表于:2019-01-27 / 阅读(154) / 评论(0) 分类 PBS访谈环境系列

SCIENCE IN THE NEWS - Americans Win All the Nobel Prizes for Science in Two Thousand SixBy Nancy Steinbach Broadcast: Tuesday, October 17, 2006 VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special En

发表于:2019-01-30 / 阅读(113) / 评论(0) 分类 2006年慢速英语(十)月

By Tom Rivers London 07 October 2009 Ada Yonath (file photo) Two Americans and one Israeli share this year's Nobel Prize in Chemistry for their work showing how the DNA code is translated into life itself. Americans Venkatraman Ramakrishnan and Thom

发表于:2019-02-03 / 阅读(101) / 评论(0) 分类 VOA标准英语2009年(十月)

By Kevin Billinghurst Stockholm 10 October 2007 The 2007 Nobel Prize for Chemistry has been awarded to Gerhard Ertl of the Max Planck Society in Berlin. Kevin Billinghurst has the story from Stockholm. The Royal Swedish Academy of Sciences honors Pr

发表于:2019-02-04 / 阅读(116) / 评论(0) 分类 2007年VOA常速英语(十月)

A Japanese and a pair of American scientists captured this year's Nobel chemistry prize for discovering a glowing green protein in jellyfish that can be used to spot the beginning of diseases like cancer. Lisa Bryant has more on the prestigious awar

发表于:2019-02-06 / 阅读(97) / 评论(0) 分类 VOA标准英语2008年(十月)

Now, the going gets tougher. The next stage introduces entities that are significantly more fragile, significantly more vulnerable, 现在,(变化的条件)就更加苛刻了。下一个阶段是初次形成的个体,个体是明显更加弱小

发表于:2019-02-14 / 阅读(88) / 评论(0) 分类 TED演讲教育篇

释义: There is ( are ) ... 有 虽然是最基本的表达方式,但在日常会话中占到的比例很大,可以分为多个类型进行表达。 There are ( is ) ... 表示单单的在,而 Here are ( is ) ... 表示递交物品或意见。

发表于:2019-02-26 / 阅读(143) / 评论(0) 分类 老外最常用的英文短语

台湾籍旅美老师今天交给我们的句子是: Well the water itself doesn't have any sugars or proteins like food so microbes aren't consuming it and rotting it. However, that's not to say the chemistry of the water hasn't changed. 水并不像

发表于:2019-03-05 / 阅读(192) / 评论(0) 分类 留美老师带你每日说英文

1、take a shine to sb字面意思,给某人一些阳光,中国话来说,即青睐某人,喜欢某人,更多偏向印象好,有好感的意味。 例如: I'm sure he has taken a shine to you. 我敢肯定他对你有好感。 2、have a

发表于:2019-03-11 / 阅读(131) / 评论(0) 分类 英语口语
学英语单词
accommodation distribution
algebraically oriented language (algol)
all-round mechanization
amadawn
american long-staple upland cotton
antigenocide
auto-stop mechanism
auxiliary steam manifold
baitware
berzelianite
blessed thistles
blowing me away
bugaraches
business circles
caral
clock controlled sequence
continuous spectral category
cooled in furnace
couple axle
cylindrical tile
d.v.m
data spill
dead zones
defluvium
Demi-john
dequeuing
dinuclear aromatics
direction rays
diversion privilege
doohs
ectopia vesicae
electro hydraulic brake
elephant garlic
engine piston
entity reference
entry tube
equivalent series
ethoform
family Stenopelmatidae
feldspathoid
fenker
garland chrysanthemum
gathering coal
general specifications for the building of ship
Geranium kariense
giant molecules
giant ultrahighspeed computer
goldrimmed moth
group round
Havers' lacuna
human zoo
indirect factory costs
inphase detector
instruments of execution
Irishly
juvenile-delinquent
Kashewe
laser pumping energy
le vice anglais
level(l)ing machine
licked out
living species
maternal
meachin
mischeer
monitor and control unit
moral economy
most favoured nations treatment
nonenveloped
normal control
overall diffusivity
owlet moth
pantaphel
passionflowers
polar impulse
portable awning
process level
protospecies
rabid
rcias
redds
s - r theory (stimulus-response theory)
Salsacate
sequestrant
service object
sessile-flowered oak
shortening oil
single user access
solvency constraint
Soyer, Moses
spiciferous
stainbrook
szetoes
taken one with another
tapered cross shaped point
the whole kit and boodle
unglorious
upgrading of labor
virus-resistance
whole tones
zinc-plated heavy iron hinge