[化] 高分子解聚

[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:05.63]2005 Text4 [00:07.86]Americans no longer expect public figures, [00:11.18]whether in speech or in writing, [00:13.41]to command the English language with skill and gift. [00:17.76]Nor do

发表于:2018-11-30 / 阅读(116) / 评论(0) 分类 历年考研英语阅读理解

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t

发表于:2018-12-24 / 阅读(89) / 评论(0) 分类 Scientific American(四)月

This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(116) / 评论(0) 分类 Scientific American(三)月

Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c

发表于:2018-12-24 / 阅读(103) / 评论(0) 分类 Scientific American(一)月

Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s

发表于:2019-01-02 / 阅读(102) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(119) / 评论(0) 分类 Scientific American(九)月

Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don

发表于:2019-01-08 / 阅读(107) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(153) / 评论(0) 分类 Scientific American(四)月

Corresponding English and Chinese proverbs and phrases(1) 1.After meat, mustard; after death, doctor . 雨后送伞 Explanation: this describes a situation where assistance or comfort is given when it is too late. Example: just as I had cancelled

发表于:2019-01-08 / 阅读(104) / 评论(0) 分类 英语笔译

Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o

发表于:2019-01-12 / 阅读(70) / 评论(0) 分类 2016年VOA慢速英语(九)月

By Lisa Schlein Geneva 22 June 2007 The U.N. Environment Program says environmental degradation is triggering tensions and conflict in Sudan. A new study foresees no long lasting peace in Sudan unless widespread and rapidly accelerating environmental

发表于:2019-01-13 / 阅读(111) / 评论(0) 分类 2007年VOA标准英语(六月)

UN Warns Against Land Degradation A top U.N. advisor said on Friday that every minute, 23 hectares of land are degraded by drought and desertification. He said its damaging the economic, social and environmental pillars needed for sustainable develop

发表于:2019-01-13 / 阅读(82) / 评论(0) 分类 VOA标准英语2011年(十二月)

'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded

发表于:2019-01-14 / 阅读(151) / 评论(0) 分类 VOA标准英语2016年(二月)

俚语和谚语是英语学习中的一大绊脚石。我们不明白这些俗语的含义,是因为我们和英语国家的文化背景不同。如果能在汉语中为这些俗语找到对应的说法,问题就解决了。我们向你介绍一些

发表于:2019-01-14 / 阅读(88) / 评论(0) 分类 实用英语

19. Most people seem to have more bad dreams early in the night, progressing toward happier ones before awakening, suggesting that they are working through negative feelings generated during the day. 【分析】复合句。句子主干为Most people

发表于:2019-01-16 / 阅读(72) / 评论(0) 分类 考研英语长难句讲解

By Valer Gergely Washington, D.C. 11 April 2007 Watch Environment Exhibit The effects of environmental degradation have been increasingly seen as contributing to conflict in various parts of the world. The growing scarcity of natural resources as a

发表于:2019-02-05 / 阅读(157) / 评论(0) 分类 2007年VOA标准英语(四月)

New UN report highlights livestock production as major environmental threat Steve Baragona | Washington, DC 04 June 2010 A new United Nations report singles out food production as a major factor driving environmental degradation. Raising animals for

发表于:2019-02-12 / 阅读(101) / 评论(0) 分类 VOA标准英语2010年(六)月

While an international agreement on climate change remains elusive, African nations are moving closer to a unified strategy. Africa has experienced more extreme weather events in recent years as global temperatures rise. Dr. Joseph Mukabana said the

发表于:2019-02-18 / 阅读(120) / 评论(0) 分类 英语新闻

1、Outwardly, I was everything a well-brought up girl should be. Inside, I was screaming。 外表看,我是个教养良好的小姐,骨子里,我很反叛。 2、There is nothing I couldn't give you, there is nothing I would deny you, if you

发表于:2019-02-18 / 阅读(55) / 评论(0) 分类 英语口语

HARI SREENIVASAN, PBS NEWSHOUR WEEKENDANCHOR: The nation's infrastructure received an overall grade of D- plus in a report card published this week by the American Society of Civil Engineers, the same grade the group issued in 2013. Among the 16 cate

发表于:2019-02-25 / 阅读(121) / 评论(0) 分类 PBS访谈社会系列
学英语单词
acid-proof casting
actual knowledge
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all-whole
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ballysadares
be in it
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CFV
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Costia necatrix
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ectopic hormone
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eriophora astridae
esker,eskar
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feel equal to
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Indian carp
ion-radical
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Judenrat
King Cole
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mercaptoethylguandine
mesenterium dorsale commune
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venas
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votre
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What the plague!
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zoidiophilous