【推荐1】Hotels on the moon

Do you want to spend your holidays in hotels on the Moon?

(A)At the moment, there are no hotels on the Moon. But all this will change. If we can solve some problems, we will be able to build hotels there in the future. The Moon is very cold, (B)        the hotels will have to be warm. They will also need(C)a lot of air so that people there can breathe.

The hotels on the Moon will have rooms with big windows so that you can see.

(D)        Earth. You will be able to swim in the hotels swimming pool and(E)你将会看见你周围的所有的星星. But you should not get too excited. (F)Having a trip to the Moon will cost a lot of money!

【推荐2】Would you like to live in a city where buildings turn the lights off for you, and self-driving cars will find the nearest parking space themselves? Although it might sound a little far from you, living in a “smart” city like this could happen sooner than you think.

Great changes have taken place in towns that we have lived in for centuries, while completely new cities are being built. One such place is the city of Songdo. Every home there will have a telepresence system(远程遥控系统)—allowing users to control the heating and locks, take part in video meetings, and receive education, health care and government services. Around the city, escalators(自动扶梯) will only move when someone is on them, and offices and schools will all be connected to the system.

The great mind behind Songdo is from the company Cisco. Actually, technology companies around the world such as IBM, Siemens and Microsoft are already in the business.

About 75% of the world’s population will live in cities by 2050, so cities will need to be more modern to deal with the coming problems. “Making cities smarter is one way out, and I think this will in turn make cities greener,” said Dan Hill, the head of a research company.

【推荐3】In the future, machines will be improved and do more and more work for man. Few people have to work for long hours. Men will have more time for leisure. How will they use this leisure in the world of tomorrow?

Certainly they will still need holidays.

In the future, the computer will help people to find the right place. The computer will ask them questions which they will answer by pressing a button. It'll also show them pictures and they will say which ones they like, then the computer will tell them where to find the place they want for holiday.TV will be used more in education. It will also help people use their leisure time well. There will be more programs on how to make and how to do things.

In the future, people will certainly have to do less work. Machines will take more and more work from men. This means that the rest of the time will be mostly leisure time.

Some scientists say that men of the future will be able to get enough pleasure and enjoyment on their own without going anywhere. According to other scientists, people will put on a small cap. The cap will make them see, feel and hear all kinds of enjoyable things.

What would you like for lunch? Maybe, a battery? Although it sounds unusual, this has already been realized by scientists as they develop electronic things you can eat.

Robofood, led by Dario Floreano from a Swiss Institute, has created a new drone (无人机) with scientists from Wageningen University, the Netherlands. Half of the parts inside can be eaten! The program aims to make robots that can be eaten and foods that act like robots by mixing food science and robots in a new way.

The drone’s wings are made from rice cakes glued together with oil and chocolate. It can find missing people or animals in emergencies and send food or medicine. Parts of the drone can be eaten because they meet food safety standards for emergencies set by the United Nations.

However, the main challenge is finding stronger edible (可食用的) materials for the drone’s wings to prepare for bad weather and high temperatures—of course, the chocolate may melt (融化) easily.

Robofood also developed an edible sensor to help monitor stomach sickness. It’s eaten by the patient to check the conditions inside. It’s different from other sensors because it’s easy for your body to digest (消化), so it won’t leave any remains inside the body.

The invention of Robofood also helps with environmental protection. There are batteries that you can fully eat. They are made from natural things like vitamin B2 and elements (元素) found in fruits. This helps the environment because you won’t have to throw them away like other batteries.

【推荐3】Teenagers believe anything is possible if they study hard. But they often forget to think about healthy diets, enough sleep time and exercise. In fact, these things are really important for them to keep fit.

It is important for teenagers to get enough energy. Teenage girls need about 2,200 calories a day while boys need a bit more—doctors suggest 2,800 for teenage boys. 50% of their calories should come from healthy food—rice, vegetables and fruit. People often say an apple a day keeps the doctor away. Teenagers also need to drink a lot of water, 6 to 8 glasses a day. Drinking enough water will improve their skin.

Teenagers usually need eight to ten hours’ sleep at night, but many Chinese teenagers do not get enough sleep. A report shows that without a good night’s sleep, teenagers seem to be weaker than they should be. Too much homework is not the only reason why teenagers stay up late. Some watch TV or play computer games late into the night. Teenagers should develop good study habits. So some clever students never study late, but they are able to work well in class.

Exercise is something that can help them. Experts suggest that teenagers should spend at least 30 minutes exercising a day, five times a week. They will feel relaxed when they exercise. It can even help them sleep better at night.