标签：干旱恐惧 相关文章

英语听力：探索发现 2013-01-23 冰河新新州 Ice Age Oasis—18

Meanwhile, the ground sloth, like the mastodons, must eat most of the day to fuel its huge bulk. This may be the ice age, but by midday, temperatures soar, drawing another predator to the spring to drinkthe notorious saber-toothed cat. Most creatures

发表于:2018-12-27 / 阅读(41) / 评论(0) 分类 探索与发现2013年

英语听力文摘 English Digest 595、恐惧闻起来像糖！

Fear Smells Like Sugar Scientists have suspected for many years that fish might give off a chemical signal to warn other fish about the presence of predators. When a fish in a school is injured, for example, the rest of the school will panic and swim

发表于:2018-12-31 / 阅读(57) / 评论(0) 分类 英语听力文摘 English Digest

VOA常速英语2013--叙利亚暴发脊髓灰质炎引发区域传播恐惧

Polio Outbreak in Syria Prompts Fears of Regional Spread 叙利亚暴发脊髓灰质炎引发区域传播恐惧 LONDON An outbreak of polio among children in Syria has the potential to spread rapidly, doctors are warning. It is Syrias first polio out

发表于:2019-01-03 / 阅读(55) / 评论(0) 分类 VOA常速英语2013年(十一月)

英语听力文摘 English Digest 307、选择性记忆删除

Selective Memory Erasure 选择性记忆删除 Ya?l: Have any unpleasant memories, Don? Don: Sure. Who doesn't? Y: What would you say to having them permanently erased from your brain? D: Without losing other memories? Y: Right. Scientists did just t

发表于:2019-02-24 / 阅读(69) / 评论(0) 分类 英语听力文摘 English Digest
最新学习文章
热门学习文章