Grasp the 1) cone with the right hand firmly but gently between thumb and at least one but not more than three fingers, two-thirds of the way up the cone. Then 2) dart swiftly away to an open area, aw

发表于:2018-11-28 / 阅读(125) / 评论(0) 分类 疯狂英语2002年

17. Professor Smith and Professor Brown will ____ in giving the class lectures. A. alter B. change C. alternate D. differ alter alter 改变(把某物改大改小) change 改变(强调结果) from...t

发表于:2018-12-15 / 阅读(153) / 评论(0) 分类 新东方赵丽词汇课堂

[00:02.17]Look around You看看你周围 [00:04.95]A very special teacher in a high school had a husband [00:09.80]who died suddenly of a heart attack. [00:12.54]About a week after his death, [00:14.83] she shared some of her thoughts with a classroom of

发表于:2019-01-02 / 阅读(129) / 评论(0) 分类 智慧背囊超越自我

Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani

发表于:2019-01-14 / 阅读(95) / 评论(0) 分类 VOA标准英语2011年(四月)

A very special teacher in a high school had a husband who died suddenly of a heart attack. About a week after his death, she shared some of her thoughts with a classroom of students. As the late afternoon sunlight shined through the classroom windows

发表于:2019-01-17 / 阅读(81) / 评论(0) 分类 英文励志文摘精选

For thousands of years, this powerful current has regenerated the reef. But it can not repair everything. Beneath the waves lie deeper scarsthe largest coral reef on Earth is home to a dazzling diversity of marine species, some found nowhere else on

发表于:2019-01-22 / 阅读(23) / 评论(0) 分类 自然百科2011年