—Oh, we'd better go another way.
—It's rude! He should be kind to others.
Light travels at a very fast speed. It is about a million times 1 than the speed of sound. You can get some idea of this 2 by watching the start of a race (赛跑). If you stand some distance away from the starter, you can see smoke from his gun before the sound gets to your 3
This great speed of light4some strange facts. Sunlight 5about 8 minutes to get to us. If you look at the light of the moon tonight, 6 that the light rays (光线) left the moon 1.3 seconds before they got to you. The nearest star is so 7 away that the light which you can see from it tonight started to 8 towards you several years ago. In some cases, the light from one of tonight's stars had started on its journey to you before you were born.
So, to be exact, we can't say, "The stars are shinning 9." We have to say instead, "The stars 10 pretty. They were shining several years ago, but their light has only just got to the Earth."
Every year, thousands of students choose to study in another country. More than 30 percent of these students go to the United States, around 15 percent go to Italy, and 10 percent go to both England and Germany. A little less than 10 percent go to Australia, and around 5 percent go to Canada.
No matter where a student chooses to study, there are some things universities around the world need. First, all students must graduate from high school before they can apply (申请）to a university. Most universities also need some kind of test for students to enter the university.
Universities in the United States, Australia, and Canada usually need some kind of standardized (标准化的）exam，such as the SAT in the United States. Students who do not come from English speaking countries also must take a test such as the TOEFL in the United States and Canada to show they know enough English to study in English. England and Australia require students to take the IELTS.
In most countries, students must apply to each university they hope to go to. However, students applying to universities in England can use one form to apply to six universities at one time through the British Council (英国文化协会). Many students like this because it can save them a lot of time and money. For universities in other countries, students must fill in different forms for each university and pay a fee with each application.
Once there was a young boy. He had no family except for an old llama. Each day the boy and his llama walked many miles, looking for a home. Each night they curled up (赌缩）and slept. But on one starry (满天星斗的）evening, the old llama died. The boy buried (埋葬）his friend next to a small icy river. Then he sat under a tree and cried. What would he do? He had no family and no home.
The boy cried for a very long time. But there was no one to comfort (安慰）him. There were only the stars in the sky.
Suddenly, the sky filled with bright light. The boy held his breath. He was afraid to move. One bright star fell to the ground. Slowly, the star took the shape of the old llama. She bent her head and drank from the river. She looked at the boy and smiled. As she jumped back into the sky, bits of llama wool fell. As the sun began to rise, the boy picked up the soft, warm wool. It gave out light in his hands like starlight. He carried the wool to the city and sold it. With the money, he bought a house. He bought two young llamas. He never forgot the star llama. And he was never lonely again.
The computers changed our lives in the 1980s, the Internet changed our lives in the 1990s, and the robots will change our lives in the new century.
Do you think there will be robots in people's homes? It's not a dream that every home will have a robot.
Now, robots are not only able to help people do the housework, they can also help the doctors do the difficult operations, play chess with people, play the piano and so on.
A new cooking robot is used in Beijing. It can cook all the dishes on the menu; you only need to wait two to four minutes. In the future, the robot will be a nurse, a security (安全）guard, or a partner in your life.
Experts believe robots will be used everywhere from the industrial (工业的） robots to service robots. In the future, robots will become part of the family, and provide close service for people. We all look forward to the new robot age.
Like hundreds of other young people of all countries who take part in our language courses, you can make the most of your holidays by studying French in an interesting way and at the same time, discover one of France's most beautiful areas—Nice!
Our summer course lasts 3 weeks in July and August. You're welcome to come at any time between July and August 6. You can choose to stay at a host family, but we suggest you stay at our international summer camp. It makes it easy to meet other people and make new friends. What's more, you can have your classes in the same building which is close to the beach! A free bus service brings you to and from classes if you are living in a French host family or enables you to get into the centre of town if you are living at the summer camp.
Whenever you choose to come, we'll organize short trips, parties, sports and other activities and motivate you to speak French.
Your stay in Nice will therefore not only be an educational one, but also an enjoyable experience. Besides offering you many opportunities to meet other people from different cultures, we will do everything to make sure your stay will be unforgettable!
Most of the flowers in nature are red, orange and yellow. If we have seen a black flower, it's chance in a million.
People have made a survey to colors of more than four thousand kinds of flowers and discovered that only eight of them are black.
As we know, sunlight is formed by seven different colored lights. The wavelength of each light is also different, so the quantity (量）of heat in each light is also different. Flowers, especially their petals (花瓣), are easy to be harmed by high temperature.
Black flowers can take in the light of all the wavelengths that make them dry up because of high temperature, so black flowers can hardly resist (抵抗）sunlight. But red, orange and yellow flowers can protect themselves from sunlight by reflecting (反射) the red light, orange light and yellow light, each of which has a large quantity of heat.
"You'll think twice about plucking your eyebrows (拔眉毛) you find their important role," says Greg Foot. They are one of most expressive(有表现力的) parts of our bodies. your eyebrows, you can tell your feelings to other people. is that their only purpose (目的)?
Over several thousand (year), we have lost lots of body hair, so it's strange that hair still (remain) on our brows. Some scientists say that eyebrows mainly work as special form of protection for the eyes. In fact, their job is so (importance) that some researchers are sure that if we didn't have (they), we'd have evolved (进化) some other facial features to (do) the same task.
