Next autumn, when you see geese heading south for the winter, flying along in 'V' formation, you might consider what science has discovered as to why they fly that way. As each bird flaps its wings,it creates uplift for the bird immediately following

发表于:2018-12-07 / 阅读(194) / 评论(0) 分类 幸福是一种态度

《英语流行话题阅读:语境识词3500》Unit47:大雁的启迪

发表于:2018-12-30 / 阅读(63) / 评论(0) 分类 英语语境识词

1. Eskimos use refrigerators to keep food from freezing.爱斯基摩人用冰箱防止食物结冰。 2. Astronauts circling the Earth may get to see sixteen sunrises and sixteen sunsets every “day”

发表于:2019-02-01 / 阅读(109) / 评论(0) 分类 英文名句短语

Not So Silly Geese 雁群为什么总排成一字或人字形队伍飞行呢?这是因为大雁飞行的路程很长,它们除了靠扇动翅膀飞行之外,也常利用上升气流在天空中滑翔,使翅膀得到间断地休息空隙,以节

发表于:2019-02-24 / 阅读(78) / 评论(0) 分类 英语听力文摘 English Digest