[土壤] 土壤饱和含水量

Broadcast: August 4, 2003 This is Bill White with the VOA Special English Development Report. Safe drinking water has always been rare and valuable. Throughout the world, drinking water has to be stor

发表于:2018-11-27 / 阅读(669) / 评论(0) 分类 VOA2003(下)-发展与科学

The U.S. state of California has been suffering a historic drought. Three years ago, its governor declared a drought state of emergency. Late last year, 97 percent of California was in drought. But today, the U.S. drought monitor says less than 60 pe

发表于:2018-12-02 / 阅读(160) / 评论(0) 分类 CNN美国有线新闻2017年1月

The northeast just had its first big snow of the season. Meanwhile, on Titan, it was foggy. That weather report brought to you by researchers publishing in the journal Astrophysical Journal Letters. The scientists found that Titan, Saturns largest mo

发表于:2018-12-02 / 阅读(186) / 评论(0) 分类 Scientific American(十二)月

Water on the Moon Studies in the journal Science report that instruments on three different spacecraft have found evidence for widespread trace amounts of water on the moon. Karen Hopkin reports For all you space buffs who like to keep track of wher

发表于:2018-12-07 / 阅读(173) / 评论(0) 分类 60秒科学

Agriculture Report - Getting to the Root of How to Water Trees This is the VOA Special English Agriculture Report. Some trees can survive a long time without water. Think of trees that grow in the desert. But other trees may need more moisture than t

发表于:2018-12-07 / 阅读(211) / 评论(0) 分类 2011年VOA慢速英语(八)月

[00:00.00] Unit 6 Plants [00:04.60]A The chlidren are in a science lesson. [00:10.95]Look,listen and say. [00:15.31]1 We want to grow some tomatoes. [00:21.66]What does our plant need? [00:25.50]It needs a small pot of soil. [00:30.22]It needs a lot

发表于:2018-12-13 / 阅读(134) / 评论(0) 分类 新路径小学英语三年级上册(一起)

Floods Challenge Midwest Farmers On his land outside Peoria, Darrel Kammeyer is keeping one eye on the rising Illinois River and another on the only thing standing between it and his farmland, a seven-meter-tall levee. It was constructed to hold back

发表于:2018-12-16 / 阅读(128) / 评论(0) 分类 VOA标准英语2013年(四月)

六级作文在备考过程中既要多记忆一些词汇,又要多找话题,多练习自己构思作文的能力,下面就跟小编一起学习六级词汇,提升自己的作文水平吧! 一、自然、生态、环境 1.好词 (1)En

发表于:2018-12-18 / 阅读(149) / 评论(0) 分类 四六级写作指导

He loved his plants. His plants were in pots. There were 10 pots in back of the house. There were eight pots in front of the house. There was a different plant in every pot. No plants were the same. They were all different. They were all beautiful. I

发表于:2019-01-02 / 阅读(139) / 评论(0) 分类 原版英语小短文

Fog Found on Saturn's Moon Titan A study in Astrophysical Journal Letters reveals that Titan may be home to the familiar atmospheric condition known as fog--but made out of methane. Karen Hopkin reports The northeast just had its first big snow of th

发表于:2019-01-02 / 阅读(171) / 评论(0) 分类 60秒科学

He loved his plants. His plants were in pots. There were 10 pots in back of the house. There were eight pots in front of the house. There was a different plant in every pot. No plants were the same. They were all different. They were all beautiful. I

发表于:2019-01-04 / 阅读(189) / 评论(0) 分类 简单慢速英语阅读

DEVELOPMENT REPORT – January 7, 2002: Storing Drinking Water By Gary Garriott This is the VOA Special English Development Report. Safe drinking water has always been rare and valuable. Throughout th

发表于:2019-01-07 / 阅读(320) / 评论(0) 分类 农业与发展

These hardworking houseplants can sweeten every breath you take . Put Your Plants to Work In the early 1980s, when NASA researchers were looking for ways to purify the air inside the space pods of the future , they didn ' t just look to engineer a pr

发表于:2019-01-08 / 阅读(191) / 评论(0) 分类 英语小短文

Will There be Enough Water for Everyone? As the global population grows, so does the need for water. The Worldwatch Institute says increased demands for food, energy and industry, along with climate change, could lead to water scarcity in some places

发表于:2019-01-14 / 阅读(147) / 评论(0) 分类 VOA标准英语2013年(三月)

Low-tech Solutions Found for Africa's Everyday Problems 低技术含量的解决方案解决非洲日常问题 Governments of developing countries in Africa often lack the resources and infrastructure to solve the everyday problems of their inhabitan

发表于:2019-01-14 / 阅读(152) / 评论(0) 分类 VOA标准英语2015年(七月)

RACHEL MARTIN, HOST: It used to be the only place to find great television was on the big broadcast networks, then cable was where all the best stuff was airing. More recently, Netflix and Amazon have been racking up the Emmys. And now Apple wants a

发表于:2019-01-16 / 阅读(157) / 评论(0) 分类 2017年NPR美国国家公共电台1月

This is Scientific Americans 60-Second Science. I am Synthia Graber. Got a minute? Wander where and when the next major river flood would had, just look up to the satellites. Conventional estimates a river volumes come from rain fall of course and fr

发表于:2019-01-20 / 阅读(149) / 评论(0) 分类 2014年Scientific American(七)月

AGRICULTURE REPORT - Compost: an Organic Way to Better Soil and Crops By Gary Garriott Broadcast: Tuesday, July 05, 2005 I'm Gwen Outen with the VOA Special English Agriculture Report. Many farmers im

发表于:2019-01-30 / 阅读(245) / 评论(0) 分类 农业与发展

AGRICULTURE REPORT - Simple Ways to Protect Water Quality By Mario Ritter Broadcast: Tuesday, July 26, 2005 I'm Barbara Klein with the VOA Special English Agriculture Report. Afghans wash carrots in d

发表于:2019-01-30 / 阅读(186) / 评论(0) 分类 农业与发展

US satellite observations have produced the first strong evidence for water flowing on Mars. 美国卫星观测找到了火星表面存在液态水的首批强有力证据。 The water is a brine saturated in salts such as perchlorates. As it seeps d

发表于:2019-02-11 / 阅读(166) / 评论(0) 分类 英语新闻
学英语单词
5'-bromodeoxyuridine
adventureth
advertizes
affirmativism
Alsical
barrette file
birliks
caliper logging
Callicarpa formosana
Carnot engine
celestial latitudes
characteristic-function
climatogram
coincidence signal
cold appearance
cold stowage
combined shielding
Cosala
costal trading
cpid
credit extensions to overseas non-residents
crude oil
cupressineous
cuticular bead
defense-suppression missile
digist
disabling injury severity rate (disr)
dressmakers
drinking water ozone disinfector
dynamic linking descriptor
equatorial dry zone
extraembryonic ectoderm
fast analysis
frost season
fused fibre bundles
get through sth
glass insurance
greysteels
handworm
hard stratum
hasidisms
hastately
heeling adjustor
ileana
immunoconglutin
inductive system
interscendental
Iron Station
jauch
juryman
kilo-hertz
manuhiri
markets
Menon, Vengalil Krishnan Krishna
metembonate
mosaic structure
mozette
naphthalin iodoform
Natchezes
nor-anhydroicaritin
Oertel
onholding
overseas debt
padrino
Paipaie
paper snowflake
parmyxoviridae
patton's spruce
personal probability
pier-to-pier containerization
pompion
ponc
precatorious
pretty baby
pyknosis
Samti
sanitray towel
severity rate
soap holder
spastic ectropion
specieist
ssads
statistics of fixed assets
submolecular plexus
subprocedure depth
Sumamed
sympathetic block
tally-clerk
termination of block
tester for bed coke height of cupola
the sentences
the unconscious
theory of flight
tretinoins
trousseau's syndrome(migratory thrombophlebitis)
two-dimensional maze search
unemasculated
vegetable pear
viscosity breaking
water pollution monitor
wiener dog
windshield pillar