氮循环

[00:00.00]Part B You will hear a talk on newspapers in Britain. [00:07.99]Answer questions 6-10 while you listen. [00:14.05]Use not more than 5 words for each answer. [00:19.59]You will hear the recording twice. [00:23.95]You now have 25 seconds to r

发表于:2018-11-29 / 阅读(386) / 评论(0) 分类 全国公共英语等级考试四级

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(295) / 评论(0) 分类 初级英语听力新版

You probably already know everything is made up of little tiny things called atoms 你也许已经知道所有的东西都是由微小的原子组成。 You might even know that each atom is made up of even smaller particles called protons, neutrons

发表于:2018-12-08 / 阅读(201) / 评论(0) 分类 TED演讲教育篇

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(204) / 评论(0) 分类 Scientific American(一)月

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(168) / 评论(0) 分类 2006年慢速英语(二)月

AGRICULTURE REPORT - Legumes: Good for People and SoilBy Bob Bowen Broadcast: Tuesday, February 21, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. Many different kinds of plants

发表于:2019-01-02 / 阅读(190) / 评论(0) 分类 2006年慢速英语(二)月

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(310) / 评论(0) 分类 VOA2003(上)-科技导航

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(290) / 评论(0) 分类 Scientific American(九)月

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(240) / 评论(0) 分类 Scientific American(七)月

This is the VOA Special English Agriculture Report. Sorghum farmers in eastern Uganda, working with scientists, have tested some lower-cost ways to improve their soil. Little rain and poor soil fertility are problems in that area, as in other parts

发表于:2019-01-11 / 阅读(223) / 评论(0) 分类 VOA慢速英语2007年(六)月

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(206) / 评论(0) 分类 VOA标准英语2011年(四月)

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(216) / 评论(0) 分类 托福英语

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(257) / 评论(0) 分类 经济学人综合

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(226) / 评论(0) 分类 农业与发展

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(189) / 评论(0) 分类 GRE英语

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(153) / 评论(0) 分类 大学四六级阅读

LOS ANGELES, March 6 (Xinhua) -- U.S. researchers have successfully used certain microbes to produce biofuels(生物燃料), opening a door to developing cheaper green energy. The discovery was made by researchers at the University of California, Los

发表于:2019-02-18 / 阅读(177) / 评论(0) 分类 英语新闻

今天我们要学的词是 circulation. Circulation 有发行量的意思。美国皮尤研究中心的报告说,报纸虽然不会马上消失,但是,The declines in daily newspaper circulation are unprecedented. 日报发行量的降低是闻所

发表于:2019-02-19 / 阅读(195) / 评论(0) 分类 英语单词荟萃

In the days of diving suitsthe sort that were connected to the surface by long hoses, 在使用潜水衣即用长管子连接水面的那种装备的年代, divers sometimes experienced a dreaded phenomenon known as the squeeze. 潜水员有时候会

发表于:2019-02-25 / 阅读(182) / 评论(0) 分类 万物简史

However, when at length they emerged into the fresh air of a London evening, 然而,当他们最后走进伦敦夜晚的新鲜空气里的时候, the bubbles sprang instantly to fizziness, memorably enlivening the digestive process. 气泡立刻泛

发表于:2019-02-25 / 阅读(175) / 评论(0) 分类 万物简史
学英语单词
aeriel
aligning torque coefficient
aretalogists
ate in
autophonia
back-projected
behaviour blocker
bensimon
blabbier
bollix
bona mobiita
broken conductor strand of stator coil bar
bromobutanes
broughten
business transfer
cargo oil hydraulic valve
cheskey
clear off debts
commercial residential buildings
compression of air
condensate recovery
continuous countercurrent leaching
continuum index
cookie projection
cortical arch
cubic capacity tonnage
deformation thermograph
device cross call
die clicker
disk-grizzly screen
dislocation of tendon of brachial biceps
double-geared
electric ignition engine
fobby
fortran specification statement
fructus bruceae
George Eastman
German silver wire
Grain Coast
great circle theory
gushes
hand-grip
hexametric faces
high flash oil
high pressure injection grouting
horden
hyalinocyte
iinuma
immersion magnifier
intelligence factor
intrinsic detector
jacquard device
Kalman filtering
kitsch, kitsch
licryfilcon
light-diffusing window
lighting generator
lithium-manganese dioxide cell
marras
mcgirks
missdistance indicator
monopteroi
morats
muscularized
no-excuses
non-combatants
over-commit
papa westray
partocracies
pedal stool
pentadecenic acid
peripheral cortex
Pisgah sight
poikilit (poikilopyrite)
possie
productive excursion
prop shafts
Protoreaster
pulley
rack one's brain s
reallowing
rebuck
Rezaabad
roller-type overrunning clutch
safety mercury pipette
scouring away the silt
Scultetus' position
seven-words
shoplifted
soft shoulders
square john broad
St Katharine's Dock
status attainment
sucking pigs
super heavyweights
thioaldehydes
treatment of atomic waste
truck shot
unsophistically
upvaluation
wood-pulp
World Society of Victimology