定向突变

SSS 2008-05-28

This Scientific Americans 60-Second Science. I am Karen Hopkin. This will just take a minute. They say that older folks benefit from spending time with young people. And thats not just an excuse to stick grandma at the kids table at Thanksgiving. Now

发表于:2018-12-24 / 阅读(133) / 评论(0)

Scientific American(五)月

欧美电影简介：《上帝之城》

《上帝之城》是2002年由费尔南多梅里尔斯执导，马修斯纳克加勒、艾莉丝布拉加、索豪黑主演的一部惊悚电影。电影改编自半自传式小说《God's Town》，于2002年8月30日巴西上映。影片围绕上帝

发表于:2018-12-27 / 阅读(118) / 评论(0)

欧美电影简介

55.The Mistaken Father

The morning following the birth of our first child, my husband was mistakenly directed to the room of another new mother on the maternity floor. As he walked into the room, he bent over the nap- ping

发表于:2019-01-03 / 阅读(121) / 评论(0)

英汉幽默故事选读

Thinking about Your Life 思考生活

How many times have you heard the expression that most people spend more time planning their vacation than they do planning their lives. I would expand that expression by adding that most people spend more time thinking about their vacation than they

发表于:2019-01-06 / 阅读(112) / 评论(0)

阅读空间

SSS 2008-05-20

This is scientific American's 60-Second Science, I'm Karen Hopkin, this'll just take a minute. If theres anything better than a fresh, ripe, tomato, its a gigantic fresh, ripe tomato. And thanks to a couple of mutations, thats exactly what we all enj

发表于:2019-01-08 / 阅读(161) / 评论(0)

Scientific American(五)月

美国加州科学教材California Science GK ch4_directedinquiry

Sorry,thereisnotexttemporarily,Pleasehelptingroomtolookforit! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thankyou ！

发表于:2019-01-10 / 阅读(161) / 评论(0)

美国加州科学教材California Science GK

美国加州科学教材California Science GK ch3_directedinquiry

Sorry,thereisnotexttemporarily,Pleasehelptingroomtolookforit! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thankyou ！

发表于:2019-01-10 / 阅读(171) / 评论(0)

美国加州科学教材California Science GK

美国加州科学教材California Science GK ch6_directedinquiry

Sorry,thereisnotexttemporarily,Pleasehelptingroomtolookforit! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thankyou ！

发表于:2019-01-10 / 阅读(221) / 评论(0)

美国加州科学教材California Science GK

美国加州科学教材California Science GK ch7_directedinquiry

Sorry,thereisnotexttemporarily,Pleasehelptingroomtolookforit! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thankyou ！

发表于:2019-01-10 / 阅读(229) / 评论(0)

美国加州科学教材California Science GK

Disney reveals 2 new movie projects

LOS ANGELES, Aug. 20 (Xinhua) -- Walt Disney Studios Saturday disclosed the ongoing production of two new movies, included one directed by Academy Award winner Pete Docter. The studio made the revelation at the D23 Expo, the Disney version of Comic-C

发表于:2019-01-11 / 阅读(161) / 评论(0)

英语新闻

Gene Mutation Linked to Type 2 Diabetes

Scientists have identified a unique genetic mutation in about 10 percent of people with type 2 diabetes(糖尿病) studied in the United States and Europe. The discovery could help some people learn if they are at risk of developing diabetes so they

发表于:2019-01-11 / 阅读(192) / 评论(0)

英语新闻

VOA慢速英语 2007 0219b

VOICE ONE: Welcome to THIS IS AMERICA in VOA Special English. I'm Barbara Klein. VOICE TWO: Academy Awards ceremony, which takes place Sunday in Los Angeles, California. It is the most exciting event of the year for people who make movies and for peo

发表于:2019-01-11 / 阅读(114) / 评论(0)

VOA慢速英语2007年（二）月

智能手机没让我们变傻

AS much as we love our digital devices, many of us have an uneasy sense that they are destroying our attention spans. We skitter from app to app, seldom alighting for long. Our ability to concentrate is shot, right? 我们喜爱我们的数码设备，

发表于:2019-01-30 / 阅读(181) / 评论(0)

阅读空间

计算机-数据结构基本英语(3)

图 graph 子图 subgraph 有向图 digraph(directed graph) 无向图 undigraph(undirected graph) 完全图 complete graph 连通图 connected graph 非连通图 unconnected graph 强连通图 strongly

发表于:2019-02-01 / 阅读(156) / 评论(0)

实用英语

《后会无期》这种“公路电影”英文怎么说？

我们来看一段相关的英文报道 The film The Continent, directed by Chinese professional rally driver and best-selling author Han Han, is set to be released in China today. 由中国职业赛车手兼畅销书作者韩寒执导的电影《后会

发表于:2019-02-07 / 阅读(132) / 评论(0)

英语口语

英语美文：Thinking about Your Life

经典晨读英文：Thinking about Your Life 思考生活 How many times have you heard the expression that most people spend more time planning their vacation than they do planning their lives. I would expand that expression by adding that most peo

发表于:2019-02-17 / 阅读(156) / 评论(0)

英语美文

尼日利亚证实爆发禽流感

LAGOS, Jan. 28 (Xinhua) -- The Nigerian government on Wednesday confirmed the outbreak of bird flu in 11 states. Minister of Agriculture and Rural Development Akinwumi Adesina made the disclosure at an emergency meeting on Avian Influenza with state

发表于:2019-02-17 / 阅读(138) / 评论(0)

英语新闻

The Mistaken Father

The morning following the birth of our first child, my husband was mistakenly directed to the room of another new mother on the maternity floor. As he walked into the room, he bent over the nap- ping mother, whose back was turned to him, and gave her

发表于:2019-02-19 / 阅读(134) / 评论(0)

趣味英语

四级语法系列练习－虚拟语气(6)

Unit 3 虚拟语气(六) 16. As Commander-in-Chief of the armed forces, I have directed that all measures ____ for our defense. A. had been taken B. be taken C. would be taken D. to be taken 17. The m

发表于:2019-02-20 / 阅读(135) / 评论(0)

英文语法词汇

莎士比亚十四行诗全集:第43篇

When most I wink, then do mine eyes best see, 我的眼睛闭得紧紧，却反能看得清清， For all the day they view things unrespected; 它们白日里所见之物多半是淡淡平平。 But when I sleep, in dreams they look on thee, 但当我

发表于:2019-02-24 / 阅读(325) / 评论(0)

莎士比亚十四行诗全集

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

amount of insurance carried