Venus is close to the earth．It is the second planet from the sun．The earth is the third planet from the sun．Venus is similar(相似的)to the earth in size and mass (质量)．It is often described as the earth's"sister"．

Scientists have been learning about Venus for a long time．First they looked at Venus through telescopes(望远镜)．But Venus is covered with thick clouds．Scientists could not see Venus well through the clouds．So they made guesses about it．

For a long time，scientists thought that Venus had water and plants．They thought Venus might have animals too．But they didn't know for sure．

Then scientists found a way to learn more about Venus．In'the 1960s，they began sending probes(航天探测器)to Venus．The probes flew through the thick clouds．They took pictures of Venus up close．They found out many things too．The probes sent the pictures and things they found out back to the scientists．

The scientists learned a lot from the probes．First they learned that most of their guesses were not right．And they learned that Venus is very hot．

After that，scientists knew they could not send people to Venus．But they still wanted to know more about it．So they sent new probes．These new probes took great pictures of the planet．The pictures showed that Venus has plains (平原)and mountains!And in some ways，Venus looks like the earth．

根据材料内容完成下列任务。

任务一：简要回答下列问题。

    In 1969, humans landed on the moon for the first time. Now, many other countries want to go there as well. Why?

    The moon has a lot of minerals (矿物质) and other useful things. We want to find out if we can use them. The moon is our closest neighbor in space. We can use it as a rest station. Then, we can learn more about other planets far away in space.

    The moon is 3,474 kilometers in diameter (直径). It is about one-fourth the size of Earth. If Earth is the size of a basketball, the moon is the size of a tennis ball.

    The moon has much less gravity than Earth. If you can jump 1.5 meters on Earth, you can jump 9 meters on the moon.

    The moon is very quiet. There is no sound there. There are a lot of grey rocks on it. The moon's sky is always black.

    Our moon is about 384,400 kilometers away from Earth. The total length of the Great Wall is about 21,200 kilometers. We would have to put about ____ Great Walls end to end to reach the moon!

Many people are interested in talking about life in the future. Some people 1 that life in the future will be easier and better. But others believe that it will be worse and more difficult than now. As for me, I 2 the idea of the first team.

First, as for education（教 育）, people will have 3 education. This is because of technology（科技）. E-books will take the place of（代替）books students use now, robots（机器人）will take the place of teachers, and students will not have to go to school every day. They will 4 at home through online teaching and will find learning more interesting.

Second, people's 5 will improve. Technology will also play a very important role. New medi‐ cine will help people get better quickly. Robots will help doctors and sometimes take the place of 6 . Also, doctors will be able to fight more diseases, 7 people will live longer.

Third, housing problems will end. People will build houses under the sea. Also, some people will live 8 the moon. Then everyone will have a place to live.

Fourth, nobody in the world will be hungry. People will grow crops（庄稼）everywhere 9 on the top of buildings.

Now what about you? 10 do you think life in the future will be like?

Look! This is a photo 1 my family. There are 2 people in my family. Er Shun and Qing Qing are my parents. I have a brother, and his name is Jia Panpan. And I have two sisters, they are Jia Yueyue and Yu Ke. We are black and white, and we look the 3 . We come from China. Chongqing Zoo is our home. Every day, many people come to visit us, including(包括) men,4 , the old and the young. They like us 5 . They think we are very cute. They usually take photos with us. We like them, too.

Every day, we get up at 7 o'clock, then we have 6 . Bamboo is our favorite 7 . We like to eat it every day. Our animal keepers(饲养员) are8 to us. They often help us. I often9 with my sisters and brother. We often climb(爬) trees and sleep in the tree. We like our zoo very much. Welcome to our10 . 

Hip-hop dancing（街舞）is popular with many young people today. They like it because they can invent their own moves. They use this dance to show their love for life. It also shows that they feel good about life, that they just want to be themselves and enjoy life, and that they are not afraid of problems. 

Hip-hop dancing has a history of more than 30 years. It first began in the 1980s in the USA. In early times, it was seen in New York and Los Angeles. At that time, many young black people often danced to the music in the streets. They used their legs, arms, heads and even shoulders to dance. Many young people still use most of these moves today. 

Hip-hop dancing became popular all over the world because of the 1983 movie Flashdance. Some people performed Hip-hop dancing in the movie. People enjoyed their performance. They began to dance like them. Then it became popular. There are two kinds of Hip-hop dancing: new school and old school. More and more young people are learning Hip-hop dancing. People believe that it is a good way to exercise their bodies, and that it is good for their health .

Most people have a favorite color，but how people feel about colors depends on their culture. This can be very important to people in business that sell products all over the world. They might choose a color because they think it is exciting or attractive，but in another country that same color could be used to give a sad message. Look at these examples: 

If you ask someone in Britain what the right color is for a bride（新娘） to wear，the answer will be white In China and other eastern countries，happiness and prosperity（繁荣）. ▲In Britain，red is used as a sign of danger. Road signs and warning labels（标签） are often in red. In eastern cultures

In Egypt，yellow is the color linked to death. In Britain and other western cultures，death and funerals（葬礼），but in many eastern countries white is the color most people connect with death and funerals. 

Many people like the color orange because it is bright and exciting. Some advertisers will not use orange in their advertisements because they believe it suggests that the products are cheap and perhaps not of good quality. 

In a word，colors have different meanings in different cultures. We should learn to choose the proper color in some special situation.