AMERICAN MOSAIC - In Corning New York: A House of Glass By Nancy Steinbach, Nana Demange and Shelley Gollust Broadcast: Friday, September 16, 2005 (THEME) HOST: Welcome to AMERICAN MOSAIC, in VOA Spec

发表于:2018-12-07 / 阅读(104) / 评论(0) 分类 American Mosaic

Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? 有件事情我们总觉得理所当然:室温下把一些冰块放入水中,

发表于:2018-12-28 / 阅读(41) / 评论(0) 分类 初学者听力文摘精选

How Does Ice Cool Drinks? Heres something we tend to take for granted: drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work? Heat is a measure of molecular activity: the faster a

发表于:2018-12-31 / 阅读(30) / 评论(0) 分类 英语听力文摘 English Digest

State Department Establishes Office for Religious Engagement WASHINGTON Secretary of State John Kerry has appointed a professor of Christian ethics as the first director of the State Departments Office of Faith-Based Community Initiatives. The new of

发表于:2019-01-11 / 阅读(20) / 评论(0) 分类 2013年VOA慢速英语(八)月

NOEL KING, HOST: All right. We're going to go now to Iowa. High stakes there for Democrats who will go to the polls tomorrow to pick a candidate to run against the state's Republican governor. Iowa Public Radio's Clay Masters reports the candidates a

发表于:2019-01-17 / 阅读(30) / 评论(0) 分类 2018年NPR美国国家公共电台6月

This extra jostling pushes the atoms farther apart, causing the whole substance to slightly increase in size. If the substance cools off, its atoms stop pushing against each other so vigorously. This makes the substance shrink again. This connection

发表于:2019-02-15 / 阅读(45) / 评论(0) 分类 英语时差8,16