构件分子

VOA慢速英语 2007 1214b

HOST: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) I'm Doug Johnson. On our show this week: We listen to some music from Melissa Etheridge /P Answer a question about the White House /P And tell about the results of a recent high school

发表于:2018-12-01 / 阅读(122) / 评论(0)

VOA慢速英语2007年（十二）月

CATCHING A BUS

Dialogue 9 Laurance- Is this where I catch the bus for the zoo? Soony- You can take a T-30 from here, but then you have to walk about six blocks. Laurance- That doesn't sound too bad. Soony- Actually,

发表于:2018-12-10 / 阅读(54) / 评论(0)

英语经典听力对话

Researchers Identify Drug That Might Block Sexual Transmissi

By David McAlary Researchers have shown that it may be possible to prevent sexual transmission of the AIDS virus HIV with a compound now in the experimental stage. Female monkeys who received it vagin

发表于:2019-01-03 / 阅读(35) / 评论(0)

VOA2004（下）--健康科技

'Take' Is a Building Block in English

'Take' Is a Building Block in English Now, the weekly program Words and Their Stories from VOA Learning English. On this program, we explore the history and usage of common expressions in American English. And we give examples so that you can learn t

发表于:2019-01-12 / 阅读(258) / 评论(0)

2016年VOA慢速英语(八)月

VOA标准英语2013--Discovery Could Lead to New Drugs to Block Deadly Viruses

Discovery Could Lead to New Drugs to Block Deadly Viruses Viruses are strange things. Though there is some scientific question about whether viruses are alive or not, they do have a basic genetic structure that allows them to be biologically active.

发表于:2019-01-14 / 阅读(62) / 评论(0)

VOA标准英语2013年(三月)

美国国家公共电台 NPR NASA's Curiosity Rover Finds Chemical Building Blocks For Life On Mars

DAVID GREENE, HOST: This seems big. Scientists say for the first time they have clear evidence that the chemical building blocks of life exist on Mars. So is this the moment we can say there is life on the red planet? Well, NPR's Joe Palca says not y

发表于:2019-01-17 / 阅读(23) / 评论(0)

2018年NPR美国国家公共电台6月

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学英语单词

abil

active (remote sensing) system