??Introduction:Here is a riddle for you:I am a word that you may see on roadways or medicine bottles, and even on some of your toys! What am I? Did you guess the word WARNING!?Why do we need WARNING signs?We need to know of possible danger, d

发表于:2018-11-30 / 阅读(126) / 评论(0) 分类 少儿圣经故事

Today's coverage on CNN 10 starts with a natural disaster taking place in Southern Asia. Parts of Kerala, a state in southern India are underwater. 今天CNN10分钟新闻的头条新闻来关注南亚发生的一场自然灾害。印度南部喀拉拉

发表于:2018-12-02 / 阅读(81) / 评论(0) 分类 CNN美国有线新闻2018年7月

So what does rafting down the Grand Canyon have to do with science education? 那么大峡谷漂流而下与科学教育有什么关系呢? Ann Reid, former research biologist and current executive director of the National Center for Science Educat

发表于:2019-01-20 / 阅读(136) / 评论(0) 分类 2016年Scientific American(八)月