标签：小白鼠实验 相关文章
Nicolaus Copernicus was frightened and his mind was confused. Although he had tried to ignore them, all his mathematical calculations led to the same conclusion: that the earth was not the centre of the solar system. Only if you put the sun there di
高中二年级英语
Art is influenced by the customs and faith of a people. Styles in Western art have changed many times. As there are so many different styles of Western art, it would be impossible to describe all of them in such a short text. Consequently, this text
高中二年级英语
MARTYS STORY Hi, my name is Marry Fielding and I guess you could say that I am one in a million. In other words, there are not many people like me. You see, I have a muscle disease which makes me very weak, so I can't run or climb stairs as quickly a
高中二年级英语
ANNE'S BEST FRIEND Do you want a friend whom you could tell everything to, like your deepest feelings and thoughts? Or are you afraid that your friend would laugh at you, or would not understand what you are going through ? Anne Frank wanted the fir
高中一年级英语
JOURNEY DOWN THE MEKONG PART1 THE DREAM AND THE PLAN My name is Wang Kun. Ever since middle school, my sister Wang Wei and I have dreamed about taking a great bike trip. Two years ago she bought an expensive mountain bike and then she persuaded me to
高中一年级英语
KEEPING ADVERTISEDRS HONEST Organizations and individuals advertise because they want to persuade people to behave in certain ways, for example to buy a certain brand of rice, stop speeding or see a movie at their cinema. Advertisers go, to a lot of
高中三年级英语
Body language is one of the most powerful means of communication, often even more powerful than spoken language. People around the world show all kinds of feelings, wishes and attitudes that they might never speak aloud. It is possible to read other
高中一年级英语
THE OPEN HAND A UNIVERSAL SIGN When meeting people at the airport, most people smile and shake hands with people they meet. We know that a smile is usually a sign that people feel friendly and happy, but what if we don't know who the new person is?
高中一年级英语
This was one of the most important archaeological discoveries of the 20th century. Its find was as dramatic and exciting as the discovery itself. Here is the story. The first hint The first hint that led to the discovery of the tomb of King Tutankham
高中二年级英语
1 There are thousands of jokes which use play on words to amuse us. One person asks a question which expects a particular reply. Instead, what he gets is another kind of answer which makes the situation funny. Now read some of these customer and wai
高中一年级英语
Cloning has always been with us and is here to stay. It is a way of making an exact copy of another animal or plant. It happens in plants when gardeners take cuttings from growing plants to make new ones. It also happens in animals when twins identi
高中英语示范课
The possibility of cloning fierce and extinct wild animals has always excited film makers. And they are not the only ones! The popularity of films such as Jurassic Park, in which a scientist clones several kinds of extinct dinosaurs, proves how the i
高中英语示范课
Suppose you were the president of a high school council and you received the letter below. It is from a group of students who would like to make their school more attractive. Read the letter and then use the outline on the next page to make notes for
高中二年级英语
A FEW SIMPLE FORMS OF ENGLISH POEMS There are various reasons why people write poetry. Some poems tell a story or describe something in a way that will give the reader a strong impression. Others try to convey certain emotions. Poets use many differ
高中二年级英语
The Frick Collection (5th Avenue and E.70th Street) Many art lovers would rather visit this small art gallery than any other in New York. Henry Clay Frick, a rich New Yorker, died in 1919, leaving his house, furniture and art collection to the Ameri
高中二年级英语
Your home can be a dangerous place. But, if you understand what you can do to make your home safer, you can prevent accidents. And always keep a first-aid kit in your home - just in case ( 以防 ) there is an accident. The kitchen, bathroom and bedro
高中二年级英语
PERU Peru offers a variety of experiences from ancient ruins and centuries-old Spanish villages to thick forests, high mountains and desert coastline. TRAVEL PERU offers tours for all ages and tastes. The following tours are based at Cuzco, the site
高中二年级英语
Would you like to donate an unusual gift? Then this is the catalogue for you. The gift you give is not something your loved one keeps but a voluntary contribution towards the lives of people who really need it. Choose from this catalogue a really us
高中二年级英语
Have you ever wanted to be part of a band as a famous singer or musician? Have you ever dreamed of playing in front of thousands of people at a concert, at which everyone is clapping and appreciating your music? Do you sing karaoke and pretend you a
高中一年级英语
Not long after Freddy and the band became famous, they visited Britain on a brief tour. Fans showed their devotion by waiting for hours to get tickets for their concerts. Freddy was now quite confident when he went into a concert hall. He enjoyed si
高中一年级英语