系统突变假说

AP 2009-12-30

I want to speak to the American people again today because some of this primary information that has surfaced in the last twenty-four hours raises some serious concerns. Its been widely reported that the father of the suspect in the Christmas inciden

发表于:2018-12-01 / 阅读(147) / 评论(0)

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大学英语自学教程上UNIT10

[00:04.49]Scientific Attitudes [00:06.97]科学的态度 [00:09.46]Science had its beginning when man started asking questionsabout his environment. [00:14.18]科学起源于人类开始对自身环境产生疑问的时候. [00:18.91]He wondered where the sun went at night an

发表于:2018-12-04 / 阅读(77) / 评论(0)

大学英语自学教程上

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(woman) In our lab today, we'll be testing the hypothesis that babied can count as early as five months of age. The six babies here are all less than six months old. You'll be watching them on closed-circuit TV and measuring their responses. The exp

发表于:2018-12-05 / 阅读(75) / 评论(0)

托福听力短文

VOA标准英语2009年-Obama: 'Systemic Failure' Permitted Fo

Photo: AP President Barack Obama speaks at the Marine Corps Base Hawaii in Kaneohe Bay, Hawaii, 29 Dec 2009 U.S. President Barack Obama said Tuesday that a systemic failure in security allowed the attempted Christmas Day attack on a Northwest Airline

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VOA标准英语2009年(十二月)

英语四级词汇与语法精选特训(1)

1. Would you mind ____ quiet for a moment? I'm trying ____ of form. A) keeping,to fill out B) keeping,filling out C) keep,to fill out D) to keep,to fill out 2. Mercury is different from other industrial metals ____ it is a liquid. A) because of B) wh

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托福阅读的问题，归根结底就是读不懂：文章读不懂，或者问题和选项读不懂。一切所谓的解题技巧也是为了帮助我们读懂，而不是在读不懂文章的基础上仍然能够解题。在一篇700多单词的文

发表于:2018-12-19 / 阅读(71) / 评论(0)

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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(82) / 评论(0)

Scientific American(五)月

趣味青春英语电台第134期:Off the record

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趣味青春英语

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人的一生中，将近三分之一的时间是用于睡觉的。刚出生的婴儿几乎每天要睡20个小时；即使成年后，每夭至少要睡 6～7小时。不管睡眠时间长短如何，睡觉看来是人必不可少的行为。这一点

发表于:2018-12-27 / 阅读(68) / 评论(0)

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Solving problems Scientifically

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自考英语（一）78讲

60秒科学:Do Rainforests Create Rain?

Rainforests exist because it rains a lot and that makes the forests grow, right? Well, not so fast. What if its not the rain that makes the forestswhat if its the forests that actually generate the rain? Thats the contention of a paper in BioScience

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radiodermatitis 射线皮炎 relapsing secondary syphilis 二期复发梅毒 renal purpura 肾型紫癜 scabies 疥疮 scale 鳞屑 scar 疤痕 scarlatiniform erythema 猩红热样红斑 scleroderma 硬

发表于:2019-01-03 / 阅读(96) / 评论(0)

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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(108) / 评论(0)

Scientific American(五)月

SSS 2009-05-07

Rainforests exist because it rains a lot and that makes forests grow, right? Well, not so fast. What if its not the rain that makes the forests? What if its the forests that actually generate the rain? That is the contention of a paper in BioScience

发表于:2019-01-08 / 阅读(97) / 评论(0)

Scientific American(五)月

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(127) / 评论(0)

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夏说英语新闻晨读第331期:BBC女主编辞职

本期内容： Carrie Gracie says the reaction to her resignation as the BBC's China editor shows there is a depth of hunger for equal, fair and transparent pay. The journalist, speaking as she co-presented the Today program with John Humphrys, has

发表于:2019-02-11 / 阅读(79) / 评论(0)

夏说英语新闻晨读

Del Bosque warns of Italian threat in Euro 2012

MADRID, Dec. 2 (Xinhua) -- Spain coach Vicente del Bosque was cautious about his side's chances of success in the 2012 European Championship after the draw was held in Kiev on Friday. Spain travel to the competition, which will be held in Poland and

发表于:2019-02-18 / 阅读(53) / 评论(0)

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【英语语言学习】宝贝们都在想什么

What is going on in this baby's mind? If you'd asked people this 30 years ago, most people, including psychologists, would have said that this baby was irrational, illogical, egocentric -- that he couldn't take the perspective of another person or un

发表于:2019-02-23 / 阅读(61) / 评论(0)

英语语言学习

备考托福阅读要有点“心机”

在托福阅读备考过程中，没有一点心机是不行的！我们在选资料，练真题，解题等方面都要有方法有技巧的进行，以下是小编这个心机girl给大家推荐的几点心机秘籍，助力大家早日取得托福阅

发表于:2019-03-04 / 阅读(122) / 评论(0)

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生活大爆炸第一季第二集_3The Big Bran Hypothesis

生活大爆炸第一季第二集_3The Big Bran Hypothesis -Penny：Hey, Raj. 嗨，Raj。 Hey, listen. 嘿，听着。 I don't know if you heard about what happened last night with Leonard and Sheldon, 我不知道你是否听说了，昨晚 Leonard和

发表于:2019-03-16 / 阅读(321) / 评论(0)

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