[土壤] 土壤毛管支持水

Storing Drinking Water

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(641) / 评论(0)

VOA2003（下）-发展与科学

60秒科学:Water on the Moon

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(160) / 评论(0)

60秒科学

VOA慢速英语20060124a

AGRICULTURE REPORT - Don't Know Much About Mulch?By George Grow Broadcast: Tuesday, January 24, 2006 I'm Faith Lapidus with the VOA Special English Agriculture Report. Mulch is important to farmers. M

发表于:2018-12-07 / 阅读(130) / 评论(0)

2006年慢速英语（一）月

VOA慢速英语2011--Getting to the Root of How to Water Tree

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(195) / 评论(0)

2011年VOA慢速英语(八)月

深圳小学（深港版）第八册lesson6

[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(117) / 评论(0)

新路径小学英语三年级上册(一起)

英语六级作文常用好词和佳句推荐(一)

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(131) / 评论(0)

四六级写作指导

SSS 2009-09-24

For all you space buffs who like to keep track of where the water is, it looks like you can add our very own moon to your list. Because according to a trio of papers appearing in the journal Science, the lunar surface is wetter than we realized. Fort

发表于:2018-12-24 / 阅读(131) / 评论(0)

Scientific American(九)月

原版英语小短文 121. Plants Need Water

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(124) / 评论(0)

原版英语小短文

托福写作素材：种树与保护环境

新托福写作范文素材：种树与保护环境 1 While you probably think about planting trees for Arbor Day, you may not know justhow much of an impact tree planting can have on your lawn and energy consumption as well as the environment. Trees

发表于:2019-01-03 / 阅读(119) / 评论(0)

奥运英语

简单慢速英语阅读:Plants Need Water

发表于:2019-01-04 / 阅读(174) / 评论(0)

简单慢速英语阅读

DEVELOPMENT REPORT - Storing Drinking Water

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(302) / 评论(0)

农业与发展

SSS 2009-11-16

It seemed like a good ideabecause rivers and ponds in Bangladesh were contaminated with bacteria, Bangladeshis switched to wells. But soon after, in the early 80s, researchers realized those wells were harming Bangladeshis with a new poisonarsenic. T

发表于:2019-01-08 / 阅读(146) / 评论(0)

Scientific American(十一)月

清洁空气4观叶植物

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(170) / 评论(0)

英语小短文

VOA慢速英语 2007 0403a

This is the VOA Special English Agriculture Report. Spreading mulch Mulch is important to farmers. Mulch is a protective cover of material that is spread on top of soil. It is usually made out of organic material, like crop waste. Farmers may keep t

发表于:2019-01-11 / 阅读(144) / 评论(0)

VOA慢速英语2007年（四）月

如果福岛的冰崖解冻会怎样?看看日本实验的风险

JEFFREY BROWN: And we check in again with two people who've helped us keep up with the continuing crisis. Arjun Makhijani is an engineer special -- engineer specializing in nuclear fusion. He's the president of the Institute for Energy and Environmen

发表于:2019-01-27 / 阅读(139) / 评论(0)

PBS访谈环境系列

VOA慢速英语20060515a

DEVELOPMENT REPORT - Need to Dig a Well? Start HereBy Gary Garriott Broadcast: Monday, May 15, 2006 This is Shep O'Neal with the VOA Special English Development Report. There are several low-cost ways

发表于:2019-01-30 / 阅读(159) / 评论(0)

2006年慢速英语（五）月

AGRICULTURE REPORT - Compost: an Organic Way to Better Soil

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(225) / 评论(0)

农业与发展

AGRICULTURE REPORT - Simple Ways to Protect Water Quality

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(172) / 评论(0)

农业与发展

托福阅读中的五大类后置定语

后置定语，顾名思义分为后置和定语两个部分。后置也就是此种短语出现的位置是在名词之后，定语就是起到起到修饰限定作用的短语，注意是短语而不是句子，本质上相当于形容词。所以后

发表于:2019-02-21 / 阅读(148) / 评论(0)

托福英语

英语听力文摘 English Digest 277、孔隙

Sugar bowls and hole 孔隙是岩土固体矿物颗粒间的空间。岩土中直径大于1毫米、重力水可于其中自由运动的孔隙，是大孔隙（macro-pore，large pore）。岩土中直径为0.01～1毫米、重力水和毛管水可存其

发表于:2019-03-09 / 阅读(171) / 评论(0)

英语听力文摘 English Digest

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Ampil

anti-devitrification quartz glass

asm (american society for metals)