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
aarseth
academus
actidil
air churning resistance
air-spray
allowable inverse voltage
amino-benzoyl acetic acid
ascofuranol
barrow boys
be admiring of
Better lose the saddle than the horse.
bioprospectings
bite the dust
building cost estimate
cantaloup
clerical class
clothing bin
colcerin
composite deformation
core store
cosmopilization
cotton braid wire
cryophilic alga
cummulative probability curve
cyberpoets
dance master
decapterus macarelluss
drilling rigs
edent
electrode-negative
engaged lamp
enthronization
Eric Holder - Attorney General
ethyl phosphorous acid
fan test object
felicious
fertilizer sowing mechanism
field emission microscope(FEM)
flying pickets
Frauenkirch
galavanted
georgia heart pine
gooly
hba
homocoupling
internal intercooling
logic data base design
madia oil plants
main program counter
minimal latency subroutine
moneybelt
mustard tuber preserved chilli
myoepithelial cells
negativities
nodular pig iron
nonparaneoplastic
North Salt Lake
observation-based
one hundred and eighteen
ordering cylinder
otitis media chronica
Outperformance Option
over-compounded DC machine
photonic computer
Picrorrhiza
poisson truncated normal distribution
polysphondylium pallidum
portmantles
production solution
quaternary vein
ram-type pressure multiplier
ratchet-mouth
reaction coil
regiones hypogastrica
reinterring
rock-basin
sack of shit
savonius-type
seiwa
set-up circuitry
settling up
Sibol
spot-red
step well together
stream on
stream tube
sulfonated oleic acid
superpipelined
superpositions
the SIB
timber-faced
total face width
Toxicarolisoflavone
trap shooting
trollops
unblacked
uniform rotation
United States Naval drydocks
unwalkable
V-tooled joint
velvet chaff
viscosity force