硝化丝; 硝化纤维人造丝

VOA慢速英语--'A Pair of Silk Stockings' by Kate Chopin

Our story is called A Pair of Silk Stockings. It was written by Kate Chopin. Here is Barbara Klein with the story. Little Missus Sommers one day found herself the unexpected owner of fifteen dollars. It seemed to her a very large amount of money. The

发表于:2018-12-18 / 阅读(241) / 评论(0)

2018年VOA慢速英语(二)月

英文书摘精选 What Is Spider Silk?蜘蛛丝是什么?

Whats five times as strong as steel, twice as tough as Kevlar, and can be stretched over thirty percent in length without breaking? The answer is spider silk. 什么东西的强度是钢的5倍？什么东西的韧性是凯夫拉的2倍？什么东西能

发表于:2018-12-28 / 阅读(97) / 评论(0)

初学者听力文摘精选

麻省理工学院公开课：单变量微积分03：求导四则运算及三角函数导数

分集介绍：导数，商数，正弦和余弦 Derivatives.of.products.quotients.sine.cosine

发表于:2019-01-05 / 阅读(399) / 评论(0)

麻省理工学院公开课：单变量微积分

麻省理工学院公开课：单变量微积分01：导数和变化率

分集介绍：导数，斜率，速度与变化率 Derivatives.slope.velocity.rate.of.change

发表于:2019-01-05 / 阅读(400) / 评论(0)

麻省理工学院公开课：单变量微积分

EXPLORATIONS - Silk Road Folklife Festival

EXPLORATIONS – May 29, 2002: Silk Road Folklife Festival By Marilyn Christiano VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program, EXPLORATION

发表于:2019-01-06 / 阅读(197) / 评论(0)

Explorations

英语游戏:愚蠢的香肠

[全屏观看] 点击右键- 另存为可保存这个Flash影片 Silly Sausage是Nitrome于2011年5月28日发行的一款益智类游戏，它是以香肠在尽量不碰到其它损失生命物体的情况下吃光所有的钻石再到达终点为标

发表于:2019-01-08 / 阅读(250) / 评论(0)

英语对接游戏

'A Pair of Silk Stockings' by Kate Chopin

'A Pair of Silk Stockings' by Kate Chopin Our story is called A Pair of Silk Stockings. It was written by Kate Chopin. Here is Barbara Klein with the story. Little Missus Sommers one day found herself the unexpected owner of fifteen dollars. It seeme

发表于:2019-01-12 / 阅读(469) / 评论(0)

2015年VOA慢速英语(九)月

英语听力—环球英语 1270 Spider Silk

Voice 1 Welcome to Spotlight. Im Christy VanArragon. Voice 2 And Im Mike Procter. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 It is stronger than ste

发表于:2019-01-19 / 阅读(134) / 评论(0)

环球英语 Spotlight

2016年CRI Scientific investigation in northwest China redefines Silk Road

The Silk Road is generally accepted to be an ancient route for travel and trade connecting Eurasia and Africa. The route was named by German geologist Ferdinand Richthofen in his book in 1877, as he believed it was initially used for silk trade betwe

发表于:2019-01-19 / 阅读(153) / 评论(0)

2016CRI中国国际广播电台

2018年CRI Maritime Silk Road Forum held in South China

The 21st Century Maritime Silk Road China International Communication Forum is being held in southern China. Co-hosted by China Media Group and the People's Government of Guangdong Province, this year's forum in Zhuhai is focusing on the achievements

发表于:2019-01-19 / 阅读(135) / 评论(0)

2018CRI中国国际广播电台

英语口语大赢家Topic283:秀水街 Silk Street

秀水街是北京老外流连忘返的地方，没有想到雪莉要辛迪陪她去逛秀水街，难道是雪莉也开始赶时髦了吗？一起来看个究竟吧。 Listen Read Learn Shirley: How about we go to Silk Street this afternoon? Cindy: It's surprising. I thought you didn't like that place.

发表于:2019-01-21 / 阅读(123) / 评论(0)

英语口语大赢家

英语小达人 247 The Blue Silk Pajamas

The Blue Silk Pajamas 蓝色丝绸睡衣 A man phoned home from his office and told his wife, Something has just come up. I have a chance to go fishing for a week. It's the opportunity of a lifetime. 丈夫从单位给妻子打电话：突然有些事情

发表于:2019-01-28 / 阅读(127) / 评论(0)

英语小达人

Spiders and Silk

48 科学家发现：蜘蛛丝强度要胜过绳子 DATE=5-16-01 TITLE=SCIENCE REPORT - Spiders and Silk BYLINE=Jill Moss (Start at 59

发表于:2019-01-30 / 阅读(160) / 评论(0)

科技之光

AMERICAN MOSAIC - Folklife Festival - Silk Road

AMERICAN MOSAIC -July 5, 2002: Folklife Festival -Silk Road 03 Jul 2002, 19:07 UTC (Smithsonian photo -Kimberly Freeman) HOST: Welcome to AMERICAN MOSAIC — VOA’s radio magazine in Special English.

发表于:2019-01-30 / 阅读(239) / 评论(0)

American Mosaic

HEALTH REPORT - New Heart Drug Shows Promise in African Amer

HEALTH REPORT - New Heart Drug Shows Promise in African Americans By Cynthia Kirk Broadcast: Wednesday, November 17, 2004 This is Bob Doughty with the VOA Special English Health Report. Heart failure

发表于:2019-01-30 / 阅读(183) / 评论(0)

健康与经济

2017年CRI Silk Road International Film Festival wraps up

This year's Silk Road International Film Festival has come to the end in Fuzhou. More than 100 films from nearly 70 countries and regions have been screened since last Tuesday. Many participants are seeing the festival as a new channel to tap into Ch

发表于:2019-02-14 / 阅读(145) / 评论(0)

2017CRI中国国际广播电台

2017年CRI Actor-director Wu Jing appointed Silk Road Film Festival ambassador

Chinese actor-director Wu Jing is now working as a cultural ambassador who helps promote a Silk Road international film festival. Wu Jing spoke at the opening ceremony of film festival on Tuesday evening in Fuzhou, capital of Fujian province. Along w

发表于:2019-02-14 / 阅读(160) / 评论(0)

2017CRI中国国际广播电台

科学美国人60秒 SSS Silk Road Transported Goods--and Disease

For thousands of years, whats called the Silk Road was a group of land and sea trade routes that connected the Far East with South Asia, Africa, the Middle East and southern Europe. Of course, when humans travel they carry their pathogens with them.

发表于:2019-02-14 / 阅读(189) / 评论(0)

2016年Scientific American(八)月

英语读物《神奇树屋》第十四册 Day of the Dragon King 3 The Silk Weaver

Jack and Annie kept walking across the pasturetoward the road. Annie stopped when they neared thefarmhouse. We have to find the silk weaver and give her themessage, she said. Let's do that on our way back, said Jack. I'mworried about finding the Impe

发表于:2019-02-17 / 阅读(127) / 评论(0)

汪培珽儿童英文分级书单《神奇树屋》

听播客学英语 139 多丽丝·莱辛

Today we go on a journey. It starts in Sweden over 100 years ago; and then moves to London; and finally moves to future worlds and other planets. But we start in Sweden. Alfred Nobel spent his life finding ways to blow things up. He was born in 1833

发表于:2019-02-19 / 阅读(143) / 评论(0)

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