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JUDY WOODRUFF:Now: curbing conflicts in high school. Hari Sreenivasan looks at a new approach to discipline that replaces suspensions with conversations. HARI SREENIVASAN:In Aurora, Colorado, principal Matthew Willis welcomes the recent changes at Hi
PBS访谈教育系列
Pre-Listening Vocabulary spoil: to go rotten high concentration: a large amount of one substance inside another thrive: to do or live well crystallize: to change form and become solid crystals nourish: to provide materials needed for growth and healt
趣谈英语
Broadcast: Jan 30 2003 Researchers say there appears to be no link between a substance found in some high-carbohydrate foods and the development of some types of cancer. U.S. and Swedish researchers c
VOA2003（上）-健康之旅
For many of us, it is the rocket fuel that gets us going first thing in the morning. 对我们许多人来说，早起第一件事就喝咖啡则如同火箭燃料一般，能让我们清醒起来动起来。 But one expert has argued that to get the
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母乳喂养降低老年痴呆症风险 LONDON, Aug. 5 (Xinhua) -- Mothers who breastfeed run a lower risk of developing Alzheimer's, with longer periods of breastfeeding further reducing the risk, a new study paper unveiled on Monday. The paper, pub
英语新闻
So this is what happens. They come in, they spit into a vial, for two minutes, we say, You need to do this or this. 这就是实际的情况。他们走了进来，他们把唾液吐到一个小瓶子里，维持一个姿势达两分钟，我们说：你
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