玻璃微珠屏幕

Exercise 8-4: Bit or Beat? Bid or Bead? Read each column down. Next, contrast the single and double tense vowels with each other; and the single and double lax vowels with each other. Finally read all four across. Tense Vowels beat seat heat Pete fee

发表于:2018-12-27 / 阅读(34) / 评论(0) 分类 美式英语正音训练

Boys just____ for the____ of it but girls will not waste___ on competition unless it pays. A Canadian study has___. Rose and Roy from the Gill University in Montreal and her colleagues got forty groups of four boys and four girls aged five to six or

发表于:2018-12-30 / 阅读(78) / 评论(0) 分类 听听测测

bead, [bi:d] n 珠子,水珠,准星 【例】She wore a string of beads 她挂了一串珠子。 有孔小珠; 念珠 水珠; 水泡 算盘; (枪的)准星 【建】凸圆线脚, 串珠线脚 【机】卷边; 车轮圆缘 焊珠, 焊蚕, 焊缝; 叠

发表于:2018-12-30 / 阅读(38) / 评论(0) 分类 不择手段背单词

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. In theory, scientists could learn a lot about our health by testing tiny amounts of bodily fluidsa drop of blood, a tear, a bead of sweat. But somethin

发表于:2019-01-08 / 阅读(50) / 评论(0) 分类 Scientific American(十一)月

VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Barbara Klein. Beadwork has a long history as an art form practiced by American Indians and other cultures around the world. Today millions of people e

发表于:2019-01-09 / 阅读(44) / 评论(0) 分类 VOA慢速英语2009年(五)月

The hydrogen atoms cling fiercely to their oxygen host, but also make casual bonds with other water molecules. 氢原子死死地抓住其主子氧原子不放,而且与别的水分子的黏合也很随便。 The nature of a water molecule means th

发表于:2019-02-25 / 阅读(50) / 评论(0) 分类 万物简史