The theory of plate tectonics describes the motions of the lithosphere, the comparatively rigid outer layer of the Earth that includes all the crust and part of the underlying mantle. The lithosphere(n.[地]岩石圈)is divided into a few dozen plates o

发表于:2018-12-08 / 阅读(391) / 评论(0) 分类 新概念优美背诵短文50篇

In the 1960s, during the earliest space flights, no one knew exactly how weightlessness would affect eating and drinking. Would food fly off a plate? Would astronauts have digestive problems, with no gravity to help things along the digestive system?

发表于:2018-12-31 / 阅读(43) / 评论(0) 分类 英语听力文摘 English Digest

今天还是要继续讲两个在大选期间新闻界常用来报道选战形势的习惯用语。你知道哪一种运动是美国人日常用语最丰富的源泉呢?是美国最风行的球类运动:棒球。今天要说的两个习惯用语都

发表于:2019-01-09 / 阅读(106) / 评论(0) 分类 美国习惯用语

在美国每年棒球季节的第一场比赛相当于春天来临的信息。说真的,这一百多年来最得美国大众青睐的运动就是棒球,而棒球运动也成了习惯用语的丰富来源。我们今天就专讲一些出自棒球运

发表于:2019-01-09 / 阅读(112) / 评论(0) 分类 美国习惯用语

A: I came here to get a chest X-ray. B: I will need you to take your clothes off from the waist up and put on the gown, leaving the opening in the back. A: What comes next? B: I will need you to face this glass plate right over here. A: Should I do a

发表于:2019-01-15 / 阅读(66) / 评论(0) 分类 英语情景对话-健康

Topics: Cities: Boston; vanity license plates, to make a difference versus to make the difference, lame, devils advocate Words: New England founded massacre East/West Coast accent ancestor license plate vanity to register (a car) motto to make a diff

发表于:2019-02-15 / 阅读(39) / 评论(0) 分类 美语听力 English Cafe