帮助学生做数学题的手机应用 WASHINGTON School children usually can count on their parents to help them check if their homework is correct. But as students get older and their assignments get more complex, few parents are qualified to assi

发表于:2018-12-08 / 阅读(42) / 评论(0) 分类 VOA标准英语2015年(七月)

New research reinforces the importance of prenatal iron supplementation for good birth outcomes and continued good health for growing children. Research over the past 20 years have pointed to the importance of micronutrients - substances found in sma

发表于:2018-12-08 / 阅读(56) / 评论(0) 分类 VOA标准英语2010年(十二)月

Economics Report - Microcredit Is Expanding to New Products for the Poor This is the VOA Special English Economics Report. Modern microfinance started with economist Muhammad Yunus. In the nineteen seventies, he started what became the Grameen Bank i

发表于:2018-12-16 / 阅读(50) / 评论(0) 分类 2012年VOA慢速英语(三)月

China's growing number of microbloggers who expose power-abusing officials are becoming a force to be reckoned with. Public voices are getting louder in the age of the microblog. Independent journalist Ji Xuguang is credited with bringing down Lei Zh

发表于:2018-12-19 / 阅读(64) / 评论(0) 分类 英闻天下

Ladybugs love to snack and feast on other pests, so people began importing in Asian species called hollyqueen ladybugs as natural pest control. But in their new environments the hollyqueens wiped out native ladybugs and they have their parasites to t

发表于:2018-12-24 / 阅读(76) / 评论(0) 分类 Scientific American(五)月

This is Scientific Americans 60-Second Science. I am Christopher itagliata. Got a minute? The human microbiome means community of tiny organisms that live on us and inside us. These creators play a vital role in our health. They calibrate our min-sys

发表于:2018-12-24 / 阅读(63) / 评论(0) 分类 2014年Scientific American(十)月

By Peter Fedynsky Bishkek, Kyrgyzstan 24 September 2007 It is said that it takes money to make money. Last year, an economist from Bangladesh won the Nobel Peace Prize for an innovative program called micro-lending that enables poor people to borrow

发表于:2019-01-13 / 阅读(81) / 评论(0) 分类 2007年VOA标准英语(九月)

Flying Dog Brewery Part of Micro Beer Spurt in US Its hard to imagine life without beer. Especially here at the Flying Dog Brewery. This place fills 250 bottles every single minute of production, says the company's Erin Biles. Not bad for a brewery i

发表于:2019-01-14 / 阅读(74) / 评论(0) 分类 VOA标准英语2012年(二月)

Study: Immune System Weakens in Space During the final flight of the US space shuttle Atlantis in the summer of 2011, one of the most important pieces of scientific cargo on board was a medical experiment designed to test how the human immune system

发表于:2019-01-14 / 阅读(95) / 评论(0) 分类 VOA标准英语2013年(四月)

By Tom Rivers London 13 October 2006 Muhammad Yunus waves to well-wishers at his home in Dhaka, Bangladesh, Oct.13, 2006 Muhammad Yunus and the Bangladesh bank he set up 30 years ago have been jointly awarded the 2006 Nobel Peace Prize. --- Muhammad

发表于:2019-01-16 / 阅读(130) / 评论(0) 分类 2006年VOA标准英语(十月)

ARI SHAPIRO, HOST: The phrase endangered species often refers to charismatic animals like mountain gorillas or polar bears. Well, today scientists are reporting that a whole different type of extinction is happening inside our bodies. NPR's Michaelee

发表于:2019-01-16 / 阅读(56) / 评论(0) 分类 2017年NPR美国国家公共电台8月

New research reinforces the importance of prenatal iron supplementation for good birth outcomes and continued good health for growing children. 最近一些新的研究强调产前补铁对安全分娩和成长中孩子的健康非常重要。 Studie

发表于:2019-01-19 / 阅读(89) / 评论(0) 分类 VOA双语新闻 2011年1月

This year, the number of mobile phones on cell networks is expected to surpass the Earth's population. More people now own cell phones than actually have access to working toilets. James Meadow, a microbial ecologist at the University of Oregon. Hidd

发表于:2019-01-20 / 阅读(64) / 评论(0) 分类 2014年Scientific American(七)月

This year the number of mobile phones on ... the population. More people now on cellphones actually have access to toilets. James Middle of micro... colleges at the university of Organ. Here in the data is the reality that some people work on their p

发表于:2019-01-20 / 阅读(65) / 评论(0) 分类 2014年Scientific American(七)月

You have probably noticed that the synthetic shirts stinks more after a workout, compared to cotton. But hey, it's not the fabric's fault, it's the microscobes that hang out on synthetics that create the characteristic stach. That's according to a st

发表于:2019-01-20 / 阅读(59) / 评论(0) 分类 2014年Scientific American(九)月

By June Soh Washington, D.C. 07 June 2007 The U.S. Justice Department says homicides in the United States are most often committed with guns, especially handguns. And the number of shooting deaths has increased steadily over years. But a new technol

发表于:2019-01-26 / 阅读(99) / 评论(0) 分类 2007年VOA标准英语(六月)

By Phillip Wellman Dakar 12 October 2007 Officials at the United Nations say they would like to review disaster management policy in West Africa, where recent floods have killed hundreds and left hundreds of thousands displaced. They say the floods h

发表于:2019-01-31 / 阅读(74) / 评论(0) 分类 2007年VOA常速英语(十月)

STEVE INSKEEP, HOST: Every year, more than 1 million children and adolescents sustain a concussion. The symptoms may vanish in days or last for months. And right now, doctors usually cannot predict how long the recovery will take. That could be chang

发表于:2019-02-13 / 阅读(135) / 评论(0) 分类 2017年NPR美国国家公共电台5月

For over 7,000 years, Asians have been brewing beer. But it's only in the past few years that Asia has overtaken Europe and America to become the world's biggest beer-drinking continent. With an increasingly young and upwardly mobile population, ther

发表于:2019-02-21 / 阅读(70) / 评论(0) 分类 英语听力精选进阶版

Reading 1: Can a Tweet Ever Be a Grand Romantic Gesture? 一条推特信息能否成为一个经典的浪漫之举? Picture the scene. It is dark except for the dim yellow candlelight; it is silent except for the scratching of a pen. A young lover

发表于:2019-02-21 / 阅读(66) / 评论(0) 分类 英语听力精选进阶版