标签：小白鼠实验 相关文章
Reading and discussing Before you read the following text, read the title and look at the pictures. Discuss with a partner what you expect to read about in the text. AUSTRALIAS DANGEROUS CREATURES Australia is home to more than 170 different kinds o
高中三年级英语
SINDBAD'S SECOND ADVENTURE On the second evening Sindbad's friends were eager to hear his second adventure. Tell us, they said, of more wonders that you have seen! So Sindbad began describing his second adventure. For many years I was happy, but as t
高中三年级英语
Although it was autumn, the snow was already beginning to fall in Tibet. Our legs were so heavy and cold that they felt like blocks of ice. Have you ever seen snowmen ride bicycles? That's what we looked like! Along the way children dressed in long
高中一年级英语
THE STORY OF AN EYEWITNESS by Jack London Never before in history has a city been so completely destroyed. San Francisco is gone. Nothing is left of it but memories and some houses far from the centre of the city. Its businesses are gone. The factori
高中一年级英语
ELIAS STORY My name is Elias. I am a poor black worker in South Africa. The time when I first met Nelson Mandela was a very difficult period of my life. I was twelve years old. It was in 1952 and Mandela was the black lawyer to whom I went for advic
高中一年级英语
[00:04.41]Sacrificed to Science? [00:06.30]为科学牺牲? [00:08.18]Professor Colin Blakmore works at Oxford University Medical School [00:11.45] 科林.布莱克默教授在牛津大学医学院工作, [00:14.73]doing research into eye problems [00:17.25]从事眼睛疾病的
大学英语自学教程下
[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
大学英语自学教程上
Which theme park would you like to visit? There are various kinds of theme parks, with a different park for almost everything: food, culture, science, cartoons, movies or history. Some parks are famous for having the biggest or longest roller coaster
高中一年级英语
Although he is one of China's most famous scientists, Yuan Longping considers himself a farmer, for he works the land to do his research. Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of Chinese farmers
高中一年级英语
Pausanias, who was a Greek writer about 2,000 years ago, has come on a magical journey on March 18th, 2007 to find out about the present-day Olympic Games. He is now interviewing Li Yan, a volunteer for the 2008 Olympic Games. P: My name is Pausania
高中一年级英语
What is a fact? Is it something that people believe? No. A fact is anything that can be proved. For example, it can be proved that China has more people than any other country in the world. This is a fact. Then what is an opinion? An opinion is what
高中一年级英语
My name is Hua Fei and I am a sporting robot of the 23rd century. I am an expert at high flying exercises. I jump from spaceships and as I fall I turn, dive, circle and dance until I softly land as close as I can to the finishing line. Robot competi
高中一年级英语
设计师苏珊李和大家分享她的实验成果：用红茶菌培养的生物材料，能被像布料或者植物皮一样用来做衣服。实验的过程是迷人的，实验结果是诱人的（尽管还有个小缺陷），而它的潜力，是
TED公开课:美丽＋潮流 表面之下
1. You will receive a body. You may like it or hate it, but it will be yours for the entire period. 1.你将拥有一个躯体。 你可以喜之也可以恶之，但它毕生都会属于你。 2. You will learn lessons. You are enrolled in a full-ti
励志英语
[00:03.58]Scientists at work [00:05.32]工作中的科学家 [00:07.05]Speaking [00:08.37]说 [00:09.69]The work of scientists is often discussed. [00:11.92]科学家的工作经常引起争论. [00:14.16]Work in pairs and discuss the advantages and
人教全日制普通高中英语（必修）高一
The most powerful atom smasher ever built could make some bizarre discoveries, such as new forces of nature or even extra dimensions of space, after it's switched on in August. The Large Hadron Collider, or LHC, basically consists of a ring of superc
自然百科2008年
时间状语从句，条件句中，从句用一般现在时代替将来时 When, while, before, after, till, once, as soon as, so long as, by the time, if, in case (that), unless, even if, whether, the moment, the minute, the day, the year, immediat
英文语法词汇
And there are certain forms of the FOXO gene 我们发现活到90或者100岁人里 that have found to be more frequently present 最常有的 in people who live to be 90 or 100. 某种FOXO基因 And that's the case all over the world, 这是遍布全球
TED演讲科学篇
Science and technology. 科技。 Geoengineering. 地理工程学。 Implicit promises. 包含着承诺。 A geoengineering experiment has come unstuck. But there will be more. 地理工程试验取得突破。可期待更多。 FOR the past few year
经济学人综合