【酶学】碳—氮裂合酶

初级英语听力(新版) Lesson 17

初级英语听力(新版) Lesson17 What's the postage on these letters to Thailand, please? I'll have to check. Do you need anything else? Yes. A three pence stamp, please. That'll be eighty-five pence in all. I wish you wouldn't have your TV so lou

发表于:2018-12-01 / 阅读(168) / 评论(0)

初级英语听力新版

SSS 2011-01-25

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. The Chesapeake Bay could get helped by a new antipollution expert: farmed oysters. For decades, the Chesapeake has been plagued by excess nutrients, such

发表于:2018-12-24 / 阅读(74) / 评论(0)

Scientific American(一)月

不择手段背单词(636):avulse

avulse, vt （由于意外事故或通过外科手术）把（身体的一部分）撕脱；抽出【反】link（vt 连结）；suture（vt 缝合）

发表于:2018-12-30 / 阅读(115) / 评论(0)

不择手段背单词

VOA慢速英语20060228a

AGRICULTURE REPORT - Bird Flu: Composting the Remains of Farm BirdsBy Mario Ritter Broadcast: Tuesday, February 28, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. Farmers usuall

发表于:2019-01-02 / 阅读(78) / 评论(0)

2006年慢速英语（二）月

ENVIRONMENT REPORT - Sport Utility Vehicles

ENVIRONMENT REPORT - October 4, 2002: Sport Utility Vehicles By Mario Ritter This is the VOA Special English ENVIRONMENT REPORT. One of the most popular kinds of car in the United States is not really

发表于:2019-01-02 / 阅读(93) / 评论(0)

健康与环境

Preparing for a Walk in Space

Broadcast: June 4, 2003 By Paul Thompson VOICE ONE: This is Ray Freeman. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today, we tell about how astronauts prepa

发表于:2019-01-02 / 阅读(97) / 评论(0)

VOA2003（上）-科技导航

SSS 2008-09-01

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(122) / 评论(0)

Scientific American(九)月

SSS 2011-07-05

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever wondered where the Earth came from, the answer, it seems, is blowin in the windthe solar wind. Or so say scientists who, after examining sola

发表于:2019-01-08 / 阅读(109) / 评论(0)

Scientific American(七)月

SSS 2012-04-11

Global warming might seem like a mechanic boom after all milder temperatures in more carbon dioxide and nitrogen should feed flower. But ten years study has found that any initial positive effect on plants from climate change may soon disappear. The

发表于:2019-01-08 / 阅读(75) / 评论(0)

Scientific American(四)月

VOA慢速英语2011--Next Step After Carbon: Knowing Your Nit

Next Step After Carbon: Knowing Your Nitrogen Footprint This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 A carbon footprint is the amount of carbon dioxide pollution that we produce as a result of o

发表于:2019-01-10 / 阅读(76) / 评论(0)

2011年VOA慢速英语(四)月

VOA慢速英语 2007 1113a

AGRICULTURE REPORT - Study Points to Risk in Common Method of Enriching Soil By Jerilyn Watson / Broadcast: Mon, 12 Nov 2007 16:00:00 UTC This is the VOA Special English Agriculture Report. For more than half a century, many farmers worldwide have a

发表于:2019-01-11 / 阅读(100) / 评论(0)

VOA慢速英语2007年（十一）月

VOA标准英语2011--Fukushima Plant Operator: Nitrogen Pumpi

Fukushima Plant Operator: Nitrogen Pumping Operation Going Well A plan to inject nitrogen into the containment vessel around reactor 1 at the Fukushima Daiichi power plant appears to be working, the plant owner said Thursday. Higher pressure levels h

发表于:2019-01-14 / 阅读(92) / 评论(0)

VOA标准英语2011年(四月)

托福阅读分析备考面面观

托福考试（TOEFL）是国际上最有影响力，使用最广泛的的英语水平测试之一。托福除了作为美国主流学校入学所需的标准化考试，申请签证和工作的过程中也会有需要托福成绩的机会，所以不少

发表于:2019-01-18 / 阅读(83) / 评论(0)

托福英语

经济学人69:欢迎来到人类纪

The geology of the planet 地球的地质情况 Welcome to the Anthropocene 欢迎来到人类纪 Humans have changed the way the world works. Now they have to change the way they think about it, too 人类改变了世界运行方式，现在，人类不

发表于:2019-01-26 / 阅读(117) / 评论(0)

经济学人综合

AGRICULTURE REPORT - Carbon Dioxide and Crops

AGRICULTURE REPORT – March 12, 2002: Carbon Dioxide and Crops By George Grow This is the VOA Special English AGRICULTURE REPORT. Increasing levels of carbon dioxide gas in Earth’s atmosphere have

发表于:2019-01-30 / 阅读(119) / 评论(0)

农业与发展

AGRICULTURE REPORT - Corn, Part 1

AGRICULTURE REPORT — November 26, 2002: Corn, Part 1 By Mario Ritter This is the VOA Special English Agriculture Report. Corn is an important crop in many parts of the world. However, some people ar

发表于:2019-01-30 / 阅读(101) / 评论(0)

农业与发展

AGRICULTURE REPORT - Food for Crops: How to Get the Most Fro

AGRICULTURE REPORT - Food for Crops: How to Get the Most From Organic Fertilizer By Mario Ritter Broadcast: Tuesday, August 23, 2005 I'm Shep O'Neal with the VOA Special English Agriculture Report. Th

发表于:2019-01-30 / 阅读(123) / 评论(0)

农业与发展

Bierborse（啤酒节）

The Bierborse is an open-air event devoted to the art of brewing throughout the world. It is composed of two thirds beer-serving businesses and one third accompanying snack specialities. The range is supplemented by participants offering products typ

发表于:2019-02-03 / 阅读(128) / 评论(0)

阅读空间

GRE阅读方法：类比思维

GRE阅读复备考之类比思维。考生在做gre阅读复习过程中也可以运用类比的思维解题。在GRE阅读中绝对不少见，也就是常说的类比题。主要说下述哪一选项所述现象和原文第N行的说法比较相像

发表于:2019-02-17 / 阅读(81) / 评论(0)

GRE英语

英语六级考试必会短语88句(1)

1.Above all：最重要的是，most important of all Above all， theyll have to discover how much nitrogen it possesses since nitrogen is4/5 of the air breathe.（2002-1） 2.Account for：解释。说明 How do you account for the truth？ 3.After

发表于:2019-02-18 / 阅读(63) / 评论(0)

大学四六级阅读

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adolescente

ascochyta hortorum (speg.)smith

attention-deficit syndrome

cerebellar agenesia hemisphere