[电] 分层绝缘

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(559) / 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(207) / 评论(0) 分类 听一分钟英文-O

(woman) Thank you. It's great to see so many of you interested in this series on Survival in Outer Space. Please excuse the cameras - we're being videotaped for the local TV stations. Tonight I'm going to talk about the most basic aspect of survival

发表于:2018-12-05 / 阅读(173) / 评论(0) 分类 托福听力短文

13 Skyscrapers and Environment In the late 1960's, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointed out that a cluster of tall buildings in a

发表于:2018-12-07 / 阅读(842) / 评论(0) 分类 英语范文背诵20篇

In a landmark development within stem cell research, scientists say theyve used a cloning technique to make embryonic stem cells that match a patients DNA. The journal Nature highlights a study that shows the potential for using the technology to rep

发表于:2018-12-17 / 阅读(312) / 评论(0) 分类 2011年NPR美国国家公共电台10月

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(259) / 评论(0) 分类 英语课程学习计划和讲义

Scientists have found that levels of a now-banned chemical are rising again in Earths atmosphere. The chemical is called CFC-11. It is the second most common kind of CFC, short for chlorofluorocarbon. Chlorofluorocarbons were once widely used in many

发表于:2019-01-03 / 阅读(205) / 评论(0) 分类 2018年VOA慢速英语(五)月

President Obama traveled to Montana today to promote his administration's health care initiative, telling an audience at a town hall meeting there that the news media may have bear some of the blame for overemphasis on scenes of angry protesters at

发表于:2019-01-08 / 阅读(162) / 评论(0) 分类 2009年NPR美国国家公共电台8月

From NPR News in Washington, Im Renita Jablonsky. President Obama is revising his health overhaul plan to add some Republican proposals. But as NPRs Julie Rovner reports, theyre not likely to win many new votes. Mr. Obama said the changes were prompt

发表于:2019-01-08 / 阅读(179) / 评论(0) 分类 2010年NPR美国国家公共电台3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(192) / 评论(0) 分类 实用英语

1. Toyota has announced it will recall more than 400,000 Prius and other hybrid vehicles around the globe to fix brake problems. This recall is the latest in a string of embarrassing safety problems at the world's largest automaker. This recall invol

发表于:2019-01-11 / 阅读(256) / 评论(0) 分类 美联社新闻一分钟2010(二月)

Earth's Ozone Layer Shows Signs of Recovery 地球臭氧层出现恢复迹象 The new report says the Earths ozone layer is showing signs of recovery. Ozone is a form of oxygen. It is found in the air we breathe and in Earth's atmosphere. The ozone l

发表于:2019-01-12 / 阅读(215) / 评论(0) 分类 2014年VOA慢速英语(九)月

Whales, seals and walruses stay warm in chilly water because they have a thick layer of blubber. We humans rely on something like blubberneoprene rubber wet suitsto spend time in cold water. But the thick versions for really icy water are heavy and u

发表于:2019-01-17 / 阅读(190) / 评论(0) 分类 2016年Scientific American(十)月

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(202) / 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(210) / 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(161) / 评论(0) 分类 PBS访谈环境系列

Science and technology 科学技术 Astrochemistry 天体化学 The great test tube in the sky 空中的大试管 Space is one big chemistry set 宇宙是一个很大的化学装置 MOST people think of the empty space between the stars as being, wel

发表于:2019-02-04 / 阅读(142) / 评论(0) 分类 经济学人科技系列

BEIJING, March 4 (Xinhuanet) -- Well-educated and well-paid single Chinese women were at the forefront of a boom in travel by the country's women in 2010. According to the 2010 Trend Report of Women's Travel, the amount of travel by Chinese women inc

发表于:2019-02-08 / 阅读(170) / 评论(0) 分类 英语新闻

下雨天了怎么办 Were it to me for how to handle the occasion being immersing in rainy days? ? 我好想你 Overwhelmingly extreme yearning do I pour upon you. ? 不敢打给你 Barely courageous off tinkling you. ? 我找不到原因 Unprovoked

发表于:2019-02-09 / 阅读(226) / 评论(0) 分类 英语口语

Many houses in New Zealand are cold. Our traditional wooden house had no insulation. If you live in a house like that, you are paying for heat to escape from the ceiling, walls and under the floor. Insulation is made from material like wool or fibreg

发表于:2019-02-18 / 阅读(199) / 评论(0) 分类 新西兰英语
学英语单词
acoustic transmissivity
active debt
alert
alternate error return
analog digital analog converter system
autolocator
befringes
besprinkler
blocade
BTDT
buoyancy certificate
camshaft grinding machine
care of immature infant
chemistry of Uranus ring
chloro-acetophenone
circular permutation code
cold pump
core spray ring
counter-twilight
crossest
curhan
Dalsbruk
dandy-cock
delay igniter
desktop theme
display storage tube
Dowie
earholes
Earthscapes
endosymbionts
extremolyte
feasibility study
flexible diaphragm
foreline flange
French Cay
fuel grid plate
Fåbæk
grease interceptor (trap)
half matt gloss
hankerer
heating-furnace
hemitrichous
hushel
investment in a partially owned subsidiary
kerong
Kiverichi
leg brace
levelling tap
LUCID LUCID
master cave
meating
medical kit
Mendigorria
microprocessor design
money pool
mountain spleenworts
multivalued logic simulation
negative-ion densitometer
neo-Pythagorean
Ngoum
non-goals
nonspliced
northern circars
oil-engined
open its doors
oris sphincter
Ounastunturi
overjubilant
Phenedin
pit lane
Pont Canavese
product warranty
production mechanism
Pshada
puffer fish
sanyal
scruggle
sealed-units
sealing ring of gyrosphere
shippon
sizing of refining equipment
solid particle colloid
sounding wire
spacely
special numeric
spirodromy
sporocyst
standard prelude
sulfinic anhydride
sweet-breathed
tetramethylbenzidines
track controller
transeminent
tube skeet
tween deck
twin conduit
underwriter's contract
uninherited
vendor's share
wandering macrophages
working slope stripping ratio
yard slip