阴极层效应

[00:00.00]His first writing assignment [00:02.29]revealed the fact that [00:04.15]he liked me and that [00:05.24]he hoped we could be friends, [00:06.77]very good friends. [00:08.64] At that time neither of us [00:11.15]suspected just how true [00:13

发表于:2018-11-30 / 阅读(191) / 评论(0) 分类 最新15篇文章贯通英语四级词汇

CHAPTER ONE [00:44.25]READING [00:45.74]Page 2 and 3 [00:48.43]THE YOUNG GREEN CONSUMER GUIDE [00:51.51]Review by Tony Ma [00:54.62]This book says that our world is in danger [00:59.32]It is vital that we do something to save the earth [01:04.21]Firs

发表于:2018-12-01 / 阅读(504) / 评论(0) 分类 上海牛津初中英语九年级

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2018-12-04 / 阅读(177) / 评论(0) 分类 听一分钟英文-O

By Nancy Steinbach Broadcast: November 19, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. When scientists want to test the effectiveness of a new drug, they usually divide

发表于:2018-12-15 / 阅读(147) / 评论(0) 分类 VOA2003(下)-环境与健康

There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th

发表于:2018-12-29 / 阅读(214) / 评论(0) 分类 英语课程学习计划和讲义

Benjamin Frankin wondered about(at) lightning. He combined his curiosity with imagination and carried out his well-known experiment to show that lightning and an electric spark are the same thing. Cur

发表于:2018-12-30 / 阅读(291) / 评论(0) 分类 自考英语(一)78讲

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(179) / 评论(0) 分类 Scientific American(四)月

美语中,一些感叹词的意义跟字典上的解释不尽相同,要在日常生活中才能体会到。让我们看看以下几个例子: Oh的字典意义是嗬;哦;哎呀,表示惊讶、的恐惧等。但将这个词连起来用,却

发表于:2019-01-09 / 阅读(158) / 评论(0) 分类 实用英语

今年7月,14岁的美国华裔少年刘继打破老虎伍兹的纪录,成为美国青少年高尔夫锦标赛史上最年轻的冠军,同时刷新老虎伍兹保持了19年的纪录。刘继出生在纽约州一个只有11万人口的小城市史

发表于:2019-01-09 / 阅读(172) / 评论(0) 分类 实用英语

Air pollution 空气污染 A: I've heard of ground-level ozone but can you explain what it is exactly? A:我听说近地面臭氧,但是你能确切解释一下是什么吗? B:Yes, it's one of the main air pollutants. Factories don't emit it dire

发表于:2019-01-14 / 阅读(124) / 评论(0) 分类 职业技术英语口语

A: May I exchange this DVD player? B: Certainly. Do you have your receipt? A: Here you are. B: Now, why do you want to exchange it? A: It won't play a DVD. B: I'm sorry. I'll get you a new player. A: At first, I thought it was me. B: Okay, here's a n

发表于:2019-01-20 / 阅读(172) / 评论(0) 分类 购物英语对话

A: I'd like to exchange this DVD player. B: Of course. Do you have your receipt? A: Here it is. B: Now, could you tell me why you want a different one? A: It refuses to play my DVDs. B: That's strange. Let me get you a new one. A: All my friends trie

发表于:2019-01-20 / 阅读(128) / 评论(0) 分类 购物英语对话

I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea

发表于:2019-01-21 / 阅读(170) / 评论(0) 分类 纯正英语一分钟

HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: Scientists studying climate change in Antarctica reported this week that the hole in the protected ozone layer of the earth's atmosphere has shrunk. The discovery of the hole in the mid-1980s led to a wo

发表于:2019-01-27 / 阅读(127) / 评论(0) 分类 PBS访谈环境系列

The Effect of Advertisement 广告的效果 Some businessmen were talking about advertising on TV excitedly. As none of them had ever done it before, every one had his point of view. At this moment, Mr. Grey came by. He was a car dealer and he had on

发表于:2019-01-28 / 阅读(150) / 评论(0) 分类 英语小达人

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-05 / 阅读(150) / 评论(0) 分类 英语每日一词

As the development of the society, people want to conquer the environment, they use the high technology to change the environment, when people are satisfied with what they did to the nature, the nature is starting to teach human being a lesson. In th

发表于:2019-02-06 / 阅读(144) / 评论(0) 分类 英语作文

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-13 / 阅读(202) / 评论(0) 分类 英语单词荟萃

VATICAN CITY, Feb.28 (Xinhua) -- The resignation of Pope Benedict XVI came into effect at 8 pm local time (1900 GMT) on Thursday, who had left the Vatican by helicopter for the papal vacation retreat in south Rome earlier in the afternoon. The pope h

发表于:2019-02-17 / 阅读(162) / 评论(0) 分类 英语新闻

BEIJING, Sept. 1 (Xinhua) -- Medicine prices at public clinics have been notably reduced thanks to a policy that promotes basic medicine, an office of the State Council said Thursday. Current price levels of basic medicine used by government-funded t

发表于:2019-02-18 / 阅读(128) / 评论(0) 分类 英语新闻
学英语单词
abort speed
AC corrosion
advances from customers
air producer gas generator
Alciopidae
Aldealafuente
Anirvan
antistine phosphate
area retrieval
argumentate
asymptotic synchronization
atherosclerotic
attend with
bevel shear
body temperature
C.L.C.
calcium-aluminium-silicon
cannula nozzle
caramel taint
chrysosoma falcatum
clorprenaline
coherent optical array
computervisions
correction for free air
cosmopolite
cupola drag
cuprammonium washing tower for removing CO
current stack of pending procedure
cyanoalkylsilane
d.davis
dissymmetry molecule
dotans
doublebanked
drop boiling
ductile impact energy
effective series resistance
epoxy polyester powder coating
fibroadenomata
format trendline
forward-difference operator
fuel delivery characteristics
futtered
gena-
general didactics
general hydrobiology
georeactor
half-windsor
hand cruft
heirage
high-frequency sputtering equipment
high-pressure molding
I'm bleeding
integral outer ring
kick pedal
kilocycles persecond
law system
lessee
linking pin
loaners
low valence metal ion
maritime state
messageboard
much-hyped
multistrand crop and cobble flying shears
N-Phenylhydroxylamine
no-go nipple
non-occupational exposure
nonpairwise
noropianic acid
nutt
object time array
oblique pencil
octothorps
parasite-host interaction
perimacular
Phlebotomus sinensis
polyed
pre-stowage plan
production cost account
quadrature-adjust
quakerest
raking trestle
recataloguing
recessed rock anchor
regional biogeography
semi-automatic screwdriver
share worth
sluttify
SMZ(sulfamethoxazole)
spin-up time
strong vat
Stuckenia pectinata
superheavy water
swimming ovaries
sympathetcoma
terminal stress
textural stress
thermal resolution
us ia
verbilki-Tver porcelain
Welatam
zofits