启动子减弱突变体

美国口语骂人篇精华

1. Nerd/geek/dork/dweeb/gweeb 呆子. 这些字都代表一个人因为太专注某件事而看起来不太正常, 而并非不聪明的呆, 如书呆子, 计算机怪胎等, 这几个字可以交换使用. 其中 nerd , geek 和 dork 比其它二个来

发表于:2018-12-17 / 阅读(281) / 评论(0)

今日美国口语

SSS 2011-01-27

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? Generations of American children have been told, Eat your broccoli! And for decades, researchers have known that broccoli and related vegetables like cauliflower and water

发表于:2018-12-24 / 阅读(96) / 评论(0)

Scientific American(一)月

听美剧学英语:《淘小子看世界》 I Dream of Feeny - 3

I can't believe Mr. Feeny actually missed a day of school. Well, you know who you can thank for that, don't you? Zeus? Me! I wished for him to get sick, and he did. You didn't wish for him to get sick. Sure I did, yesterday when we weren't studying.

发表于:2019-01-02 / 阅读(98) / 评论(0)

听美剧学英语-《淘小子看世界》

美联社新闻一分钟 2006-07-25

1. Secretary of State Condoleezza Rice is in Jerusalem on a high-stakes diplomatic mission. Her first stop was Beirut where leaders were disappointed that her trip did not bring about an Israeli-Hezbo

发表于:2019-01-08 / 阅读(145) / 评论(0)

美联社新闻一分钟2006

英语听力：自然百科热带风潮的革命 Tropicalia Revolution—10

He was the embryo of the very thing we were trying to do consciously. He had started with bossa nova, and he had added rhythm'n'blues and rock'n'roll to his thing. And he had a new synthesis that prefigured everything the Tropicalistas wanted to, to

发表于:2019-01-22 / 阅读(181) / 评论(0)

自然百科2012年

Bird flu appears returning: UN

EIJING, Aug. 30 (Xinhuanet) -- The United Nations is warning authorities to be on high alert of bird flu as the virus appears to be returning. The UN Food and Agriculture Organization said in a statement Monday a mutant strain is spreading across par

发表于:2019-02-08 / 阅读(127) / 评论(0)

英语新闻

TED演讲:昭示长寿的实验(1)

Have you ever wanted to stay young a little longer 大家有没有想过要年轻再久一点 and put off aging? 延缓衰老呢？ This is a dream of the ages. 这是很久以来的梦想了 But scientists have for a long time 不过科学家以前一

发表于:2019-02-14 / 阅读(88) / 评论(0)

TED演讲科学篇

2018年CRI Scientists engineer mutant enzyme which eats plastics quickly

An international group of scientists has engineered an enzyme which they say will be able to eat some of the most common plastic. It's being touted as a possible way to fight pollution. Improvements aimed at making the enzyme work more effectively ar

发表于:2019-02-22 / 阅读(119) / 评论(0)

2018CRI中国国际广播电台

omg美语：0531 OMG!美语ChildrensDay美国

儿童节快乐！来看看美国卡通明星用英语怎么说！ 1)Popeye the Sailorman 大力水手 old school古老的2) Teenage Mutant Ninja Turtles/TMNT忍者神龟 Mutant变异的Renaissance文艺复兴3) SpongeBob海绵宝宝4) Patrick派大星

发表于:2019-03-02 / 阅读(128) / 评论(0)

OMG美语

留美老师带你每日说英文第779期:如何表现自我

台湾籍旅美老师今天交给我们的句子是： By an ultimate irony, these self-promoters aren't trying to alienate us. They are laboring under the touching but seriously misguided impression that we will like them more for their success. 最讽

发表于:2019-03-05 / 阅读(103) / 评论(0)

留美老师带你每日说英文

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学英语单词

1-ethyl-1-phenylthiourea

balanced polyphase source