[全屏观看] 点击右键- 另存为 可保存这个Flash影片 用滑鼠把黄色的格子全部跳成粉红色的!!要避开水母和其他生物...如果撞到的话就GAME OVER了 操作指南:鼠标控制

发表于:2019-01-08 / 阅读(153) / 评论(0) 分类 海绵宝宝游戏

Hi, its Kasey-Dee Gardner, in this weekend Why Tell Me Why will answer an interesting viewer question. The viewer wants to know why certain species die after they reproduce. So, we're here to find out the answer. Urn, so there are a bunch of species,

发表于:2019-01-22 / 阅读(56) / 评论(0) 分类 自然百科2009年

Science and technology 科学与技术 Splay-footed, not flat-footed 不是扁平足而是八字足 A new fossil shows that evolution does not always mean change 新发现的化石显示,进化并不总意味着变化 Palaeontology 古生物学 The

发表于:2019-01-26 / 阅读(99) / 评论(0) 分类 经济学人科技系列

热带雨林 Tropical Rainforest abounding adj. 丰富的,大量的 accelerate v.加速,促进 arce n. 英亩 alkaloid n. 生物碱 an intricate and fragile system 复杂脆弱的系统 angler n.钓

发表于:2019-02-05 / 阅读(145) / 评论(0) 分类 英文语法词汇

雅思阅读考试备考中很重要的一个部分就是对雅思阅读文章题材的熟悉和掌握。 雅思阅读考试的文章通常分为生物、地理和社会科学三类。雅思文章的出处有很多,其中最实用的、便于积累背

发表于:2019-02-12 / 阅读(97) / 评论(0) 分类 雅思英语

More than 100 Nobel laureates have signed a letter urging Greenpeace to end its opposition to genetically modified organisms (GMOs). The letter asks Greenpeace to cease its efforts to block introduction of a genetically engineered strain of rice that

发表于:2019-02-16 / 阅读(71) / 评论(0) 分类 英语新闻

Only about one bone in a billion, it is thought, ever becomes fossilized. 据认为,在10亿根骨头当中,只有大约l根能变成化石。 If that is so, it means that the complete fossil legacy of all the Americans alive todaythat's 270 mill

发表于:2019-02-17 / 阅读(39) / 评论(0) 分类 万物简史

From time to time certain strains of virus return. 有几种病毒不时重复出现。 A disagreeable Russian virus known as H1N1 caused severe outbreaks over wide areas in 1933, then again in the 1950s, and yet again in the 1970s. 一种名叫H1N1的

发表于:2019-02-17 / 阅读(75) / 评论(0) 分类 万物简史

The most rampantly infectious organism on Earth, a bacterium called Wolbachia, doesn't hurt humans at all, 地球上最具传染性的生物,一种名叫沃尔巴克体的细菌,根本有伤害人类, or, come to that, any other vertebratesbut

发表于:2019-02-17 / 阅读(68) / 评论(0) 分类 万物简史

One of the odder aspects of infection is that microbes that normally do no harm at all sometimes get into the wrong parts of the body and go kind of crazy, 感染有许多古怪的方面。其中之一是,有些在正常情况下完全无害的微生

发表于:2019-02-17 / 阅读(55) / 评论(0) 分类 万物简史

Anyway, getting sick is a sensible response to infection. 生病正是对感染的一种能感觉到的反应。 Sick people retire to their beds and thus are less of a threat to the wider community. 病人躺在病床上,因此减少了对更多人的

发表于:2019-02-17 / 阅读(45) / 评论(0) 分类 万物简史

With this ability to evolve rapidly goes another, even scarier advantage. 有了这种能力,另一种更加吓人的优势会很快产生。 Bacteria share information. Any bacterium can take pieces of genetic coding from any other. 细菌能共享信

发表于:2019-02-17 / 阅读(35) / 评论(0) 分类 万物简史

Many organisms in the visible world were also poorly served by the traditional division. 传统的分类法也不大适用于可见世界里的许多微生物。 Fungi, the group that includes mushrooms, molds, mildews, yeasts, and puffballs, were ne

发表于:2019-02-17 / 阅读(39) / 评论(0) 分类 万物简史

In 1997 scientists successfully activated some anthrax spores that had lain dormant for eighty years in a museum display in Trondheim, Norway. 1997年,科学家们成功地激活了已经在挪威特隆赫姆博物馆休眠了80年之久的一些炭疽

发表于:2019-02-17 / 阅读(67) / 评论(0) 分类 万物简史

We now know that there are a lot of microbes living deep within the Earth, many of which have nothing at all to do with the organic world. 我们现在知道了,有大量微生物生活在地球内部的深处,其中许多与普通的有机世界毫

发表于:2019-02-17 / 阅读(48) / 评论(0) 分类 万物简史

They have been found living in boiling mud pots and lakes of caustic soda, deep inside rocks, at the bottom of the sea, 我们还发现细菌生活在沸腾的泥潭里和烧碱池里,岩石深处,大海底部, in hidden pools of icy water in t

发表于:2019-02-17 / 阅读(84) / 评论(0) 分类 万物简史

Bacteria do it all the time without fuss, and thank goodness, for no larger organism could survive without the nitrogen they pass on. 而细菌一直在不慌不忙地干这件事。谢天谢地,要是没有它们来传送氮,大的生物就活不下

发表于:2019-02-17 / 阅读(96) / 评论(0) 分类 万物简史

It has been suggested that the cyanobacteria at Shark Bay are perhaps the slowest-evolving organisms on Earth, and certainly now they are among the rarest. 据认为,沙克湾里的叠层石也许是地球上进化最慢的生物,也肯定是现在

发表于:2019-02-17 / 阅读(72) / 评论(0) 分类 万物简史

Coincident with concerns about the accelerating loss of species and habitats has been a growing appreciation of the importance of biological diversity,the number of species in a particular ecosystem,to the health of the Earth and human well-being

发表于:2019-02-19 / 阅读(122) / 评论(0) 分类 托福英语

TPO12 Lecture 1 6. What does the professor mainly discuss?(主旨题) A. How genes control human development. B. Why various types of human cells divide at different rates. C. How human chromosomes differ from one another. D. Why most human cells

发表于:2019-03-13 / 阅读(244) / 评论(0) 分类 托福英语