In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produc

发表于:2018-12-01 / 阅读(144) / 评论(0) 分类 新东方现代文背诵篇章

27. Scientific Theories In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of thi

发表于:2018-12-08 / 阅读(334) / 评论(0) 分类 新概念优美背诵短文50篇

International Right to Know Day Observed September 28 is International Right to Know Day. Since 2003, advocates have marked the occasion by calling for greater access to government-held information. Among those observing Right to Know Day is the Lond

发表于:2018-12-16 / 阅读(44) / 评论(0) 分类 VOA标准英语2011年(九月)

Farewell to Arms 对扶手说再见 Good afternoon, this is your captain speaking. We are at cruising altitude and will be in flight for another three hours, so youd better get comfortable. That means figuring out who gets the arm rest you, or your n

发表于:2018-12-31 / 阅读(50) / 评论(0) 分类 英语听力文摘 English Digest

By Mike Cooper Atlanta 16 January 2006 The U.S. holiday marking the birthday of slain civil rights leader Martin Luther King Junior was observed across the country Monday. In Atlanta, Reverend King's

发表于:2019-01-04 / 阅读(127) / 评论(0) 分类 2006年VOA标准英语(一月)

When I was young, I observed that nine out of ten things I did were failures, so I did ten times more work. 我年轻时发现,我所做的十件里有九件失败,所以我增加十倍的努力。(George Bernard Shaw) 图片1

发表于:2019-01-19 / 阅读(62) / 评论(0) 分类 Daily English-2015.11

Farewell to Arms Fly often? If you do, who gets the arm rest? You? Or your neighbor? Good afternoon, this is your captain speaking. We are at cruising altitude and will be in flight for another three hours, so youd better get comfortable. That means

发表于:2019-02-25 / 阅读(82) / 评论(0) 分类 英语听力文摘 English Digest