【推荐1】If you are dreaming of becoming an astronaut after you grow up, get started now! An astronaut needs a strong body and mind. Shenzhou XIII astronauts are able to live upside-down （倒立）. They do this not just during sleep, but also when eating and going to the toilet. Before they ________ space, they had lots of practice. Each upside-down training time lasted for 20 days.

Chinese astronauts aren’t just spaceship ________ but also machine repairers（修理工）and scientists. They have to know every part of the spaceship and how it ________. If something goes wrong, they’ve got to know ________ repair it. Also they do scientific experiments in space.

Shenzhou XIII astronauts know how to live in ________. They took a knife, a gun（枪）and some dye（染色水）________ them into space. If they land in forests, the knife and gun can protect them from wild animals. If they ________ the sea, the dye can colour the seawater around them yellow. This can drive ________ sea animals away.

Shenzhou XIII astronauts can’t get dizzy（眩晕）. A spaceship is not a plane. When it ________ the extra gravity force（额外重力）can break people’s bones（骨头）.

Astronauts must have strong bodies for this. They can’t get a headache or be sick. Because they have to ________ many things. They’ve got no time for sickness. Do you still have a long, long way to go?

【推荐2】Long long ago, people _______ know much about the sun or the earth. They thought that the sun went round the earth. In _______ places, people even said the sun was a god. They thought that the god _______ across the sky every day on a golden horse.

Now _______ the help of scientists, we know that the earth _______ round the sun. It takes the earth a year to go all the way round the _______. Today men know how far it is _______ the earth to the sun. The sun is a star. It _______ much bigger than the earth. It looks smaller only _______ it is too far away. It is too hot for us to reach. Scientists ________ told us that the earth travels a thousand miles on its way round the sun.

【推荐3】Scientists think that there _______ life on the earth for hundreds of millions of years. However, we have not found life on any other planets _______.

The earth is a planet and it _______ around the sun. Seven other planets also go around the sun. _______ of them has an environment like that of the earth, so scientists do not think they will find life on them. The sun and the objects that orbit it are called the solar system, and our solar system is a small part of a much larger group of stars and planets, _______ the Galaxy or the Milky Way. There are billions of stars in the Galaxy, and our sun is only one of them.

Scientists have also discovered many other galaxies in the universe. They are very far away and their light has to travel for many years to reach us. So _______ is the universe? It is impossible to imagine.

Scientists have sent spaceships to the planet Mars _______. They have even sent spaceships to travel outside the solar system. However, no spaceship has travelled _______ to reach other stars in our Galaxy.

Scientists have always asked the questions: with so many stars in the universe, are we _______, or is there life out there in space? Have there been visitors to the earth from other planets? Why has _______ communicated with us? We do not know the answers yet.

【推荐2】You may think there is only sand (沙子) in the desert of the world, ________ it is not true. In the desert, as we know, there is a little ________ , and it is not enough (足够的) for ________ plants. Still we can ________ some plants live in the desert.

There is wood (树林) in some places in the desert. We ________ these places oases (绿洲). In the oases, there are ________ and towns. People grow ________ kinds of crops in the fields there.

People ________ live outside the oases. They have camels, sheep and other animals. These animals depend on the desert plants for their food and do not need ________ water.

The ________ are useful to the desert people in many ways. They eat the meat and drink the milk of the animals. They use the camels for carrying water, food, tents and ________ else.

The people of the desert have to keep moving from place to place. They must always look ________ grass or desert plants for their animals. When there is no more food for their animals, they move to another place. The trip is long but quite fun, so they can ________ on the way. The desert people are ________. Everyone in the desert would like ________ the people in trouble and give them food and water.

【推荐3】Whats a team spirit? Team spirit means the willing of people to work together and help each other as part of a team. With this spirit, people try hard _______ their team the best of all. It is quite often that one is not able to carry out a job by himself. He needs more people to _______ it together. China has an old saying, “Unity（团结）is strength”, which means the importance of teamwork. Thus, understanding the real meaning of the team spirit is important for everyone. _______ there is no team spirit, a group of people will not be a whole unit（团体）.

There are two kinds of team spirit. One kind is the connection between a team of people because their efforts and cooperation（合作）are necessary. _______ is people’s love and pride for their country, when a whole nation cheer for its country in competitions.

Team spirit creates various good influence. It creates friendship and trust between people who may not _______ with each other. There may also be bad influence. Too great team spirit may cause _______ or fights with other team members.

Some people don’t understand team spirit properly. They think team spirit mean having to become a member of an organization, team or fan club. _______, team spirit can be built anywhere—between friends, coworkers（同事）or even between two people sitting next to each other. You don’t have to be wearing the team spirit clothes. Anyone can show team spirit just by showing support for the goal. It means, we should train our _______ to cooperate with others. As a matter of fact, the ability is based on our heart. Therefore, we must learn to work well in the team and let the team spirit guide us to success. _______ can we cooperate with others very well? The following ________ tips are the most helpful ones. First, be honest with others. Second, be humble（谦虚）enough. Finally, don’t be selfish（自私）. All in all, team spirit is an important ability and skill nowadays. Let’s work hard to develop it for a brighter future.

Is living on the planet Mars possible for humans? The answer is yes. Some scientists believe people will live on the planet Mars by 2200. Our own planet, Earth, will become more and more crowded and ________. We won’t have enough space to live and there won’t be any fresh air or water. Good news is that we can start again and build a better world on Mars. Here is what life could be like.

First of all, ________ should be much better. At present, our spaceships are too slow to carry large numbers of people to Mars — it takes months. However, by 2200, spaceships can travel at half the speed of light. It might take us two or three days to get to Mars!

Secondly, humans need food, water and air to live on. Scientists should be able to develop plants that can be grown on Mars. These plants will produce the food and air that we need. ________, will there be enough fresh water for all of us? There is no answer now.

There is a problem for us to live on Mars. Mars pulls us much less than the Earth does. This will be dangerous because we can easily jump too high and fly slowly away into space. To prevent this, humans on Mars have to wear special shoes to make themselves ________.

Life on Mars will be better than that on Earth in many ways. People will have more space. Living in a large building with only 10 bedrooms is highly possible. People will have more ________. With the development of science and technology, robots will do most of our work, so we can take up our hobbies.

In some ways, life on Mars may not be better than that on Earth today. Food will not be the same — meals will probably be in the form (形式) of pills and will not be as delicious as they are today. Also, space travel will make many people feel ________. The spaceship will travel fast but the journey to Mars will probably be very uncomfortable.

【推荐2】Shen Zhou-13 has caught the world’s attention. Let’s get more about it.

On April 16th, 2022, Shen Zhou-13 was safe to land after taking off last October 16th. It was the eighth time for Chinese to _______ space after Yang Liwei went as the first Chinese. _______ Chinese astronauts, Zhai Zhigang, Wang Yaping and Ye Guangfu finished many tasks (任务). They lived and worked together on the space station for six _______. They took spacewalks to make preparations for the future work. As special visitors, they _______ in space like taking trips there. These photos are valuable for further research (研究) on space.

In order to let more people learn about life in space and be interested in space, they gave science lessons from space. Now more and more young people dream _______ walking in space like them.