1 . Nowadays, everyone seems to hope to go into space and live on new planets. Instead of depending on another pre-existing planet, could we make a new planet by ourselves?
First of all, if we were to live on it, we should find a good place in space to put the new planet. We would want it to be in a habitable zone, which means the planet should be at the right distance from its star to make sure there would be perfect temperatures and most importantly, liquid water.
We’d also need the right materials to make the planet. Our Earth is made up of many different elements (元素). If we made our own new planet, we’d probably want it to have similar elements and a similar structure (结构). We’d also want enough water to form some oceans.
But even if we get all of the materials, creating a new planet like Earth could have many troubles. It might be something more like a huge space station. It would be pretty expensive if we wanted it to be super big.
We would probably also need a lot of food because there is going to be many scientists and astronauts out in space working on this project!
According to NASA, each astronaut uses about 0.83 kilograms of food per meal, including 0.12 kilograms of packaging (包装) material. Without the weight of the packaging material, we’d need about 780 kilograms of food just to feed one astronaut for a year.
Putting all these together could make it possible to make our own planet one day! In fact, creating a new planet would probably require a very modern technology and there would be tons of other things to think about. And if this is possible, it won’t likely happen within a very long time.
1. To create a new planet, which of the following should we first do?| A．To collect materials similar to Earth. | B．To prepare plenty of food for astronauts to eat. |
| C．To design its inner structure. | D．To find a proper place to set it. |
| A．About 0.12 kilograms. | B．About 0.71 kilograms. |
| C．About 0.83 kilograms. | D．About 0.95 kilograms. |
| A．It is a waste of time and money. |
| B．It may be a dangerous thing for humans. |
| C．It is impossible to come true in the near future. |
| D．It should be one of NASA’s next plans. |
2 . Life in the future will be different from the life today. Between then and now many changes will happen. But what will the changes be?
The population is growing fast. And most of them will live longer than people now.
Computers will be much smaller and more useful, and there will be at least one in every room. And computer studies will be one of the important subjects in schools then. People will work fewer hours than they do now and they will have more free time for sports, watching TV and travel. Travelling will be much cheaper and easier. And many more people will go to other countries for holidays.
There will be changes in our food, too. More land will be used for building new towns and houses for all the people. Then there will be less room for cows and sheep, so meat will be more expensive. Maybe no one will eat it every day. Instead, they will eat more fruits and vegetables. Maybe people will be healthier. Work in the future will be different, too. Robots will do dangerous and hard work. Because of this, many people will not have enough work to do. This will be a big problem.
1. In the future there will be________.| A．fewer vegetables | B．much more fruit |
| C．more people | D．less people |
| A．walk on foot | B．work long hours |
| C．work fast | D．eat meat |
| A．people will eat more fruits and vegetables |
| B．many people may not be able to find work |
| C．room for growing fruits and vegetables will reduce |
| D．all the work will be done by robots |
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People are always asking me what I want to be when I grew up. My answers are difference from time to time — scientist, professor, political leader — so the theme remains the same. I want to be someone which makes a difference in the world. To be honest, I want change the way people think. Whatever I do it in life, I know there will have some people who disagree with my values. When this happens, I will think about what great people will do in your situation. That’s why I often spend time read books about the life stories of famous people. I do hope I can do as much as possibly for society.
4 . Dr. Donald Sadoway at MIT started his own battery company with the hope of changing the world's energy future．It's a dramatic endorsement（支持）for a technology most people think about only when their smartphone goes dark．But Sadoway isn't alone in boasting about energy storage as a missing link to a cleaner, more efficient, and more equitable energy future．
Scientists and engineers have long believed in the promise of batteries to change the world．Advanced batteries are moving out of specialized markets and creeping into the mainstream, signaling a tipping point for forward-looking technologies such as electric cars and rooftop solar propels．
The ubiquitous（无所不在的）battery has already come a long way, of course．For better or worse, batteries make possible our mobile-first．lifestyles, our screen culture, our increasingly globalized world．Still, as impressive as all this is, it may be trivial compared with what comes next．Having already enabled a communications revolution, the battery is now poised to transform just about everything else．
The wireless age is expanding to include not just our phones, tablets, and laptops, but also our cars, homes, and even whole communities．In emerging economies, rural communities are bypassing the wires and wooden poles that spread power．Instead, some in Africa and Asia are seeing their first light bulbs illuminated by the power of sunlight stored in batteries．
Today, energy storage is a $33 billion global industry that generates nearly 100 gigawatt-hours of electricity per year．By the end of the decade, it's expected to be worth over 50 billion dollars and generate 160 gigawatt-hours, enough to attract the attention of major companies that might not otherwise be interested in a decidedly pedestrian technology．Even utility companies, which have long viewed batteries and alternative forms of energy as a threat, are learning to embrace the technologies as enabling rather than disrupting．
Today's battery breakthroughs come as the world looks to expand modern energy access to the billion or so people without it, while also cutting back on fuels that warm the planet．Those simultaneous challenges appear less overwhelming with increasingly better answers to a centuries-old question: how to make power portable．
To be sure, the battery still has a long way to go before the nightly recharge completely replaces the weekly trip to the gas station．A battery-powered world comes with its own risks, too．What happens to the centralized electric grid, which took decades and billions of dollars to build, as more and more people become "prosumers," who produce and consume their own energy on site?
No one knows which——if any——battery technology will ultimately dominate, but one thing remains clear．The future of energy is in how we store it．
1. What does Dr. Sadoway think of energy storage?| A．It involves the application of sophisticated technology． |
| B．It is the direction energy development should follow． |
| C．It will prove to be a profitable business． |
| D．It is a technology benefiting everyone． |
| A．Mobile-first lifestyles will become popular． |
| B．The globalization process will speed up． |
| C．Communications will take more diverse forms． |
| D．The world will undergo revolutionary changes． |
| A．find digital devices simply indispensable |
| B．communicate primarily by mobile phone |
| C．light their homes with stored solar energy |
| D．distribute power with wires and wooden poles |
| A．It might become a thing of the past． |
| B．It might turn out to be a "prosumer"． |
| C．It will be easier to operate and maintain． |
| D．It will have to be completely transformed． |
5 . Most people, when they travel to space, would like to stay in orbit (轨道) for a few days or more. And this stands to reason, if you’re paying $ 20,000 for your trip to orbit! So in order for tourism to reach its full potential there’s going to be a need for space hotels. What would a space hotel actually be like to visit? Hotels in orbit will offer the services you expect from a hotel — private rooms, meals, bars. But they’ll also offer two unique experiences: impressive views — of Earth and space — and the endless entertainment of living in zero gravity — including sports and other activities that make use of this.
The hotels themselves will vary greatly — from being quite simple in the early days to huge luxury (奢侈的) structures at a later date. It’s actually surprising that as later as 1997, very few designs for space hotels were published. This is mainly because those who might be expected to design them haven’t expected the costs to come down far enough to make them possible.
Lots of people who’ve been to space have described vividly what it’s like to live in zero gravity. There are obviously all sorts of possibilities for dancing, gymnastics, and zero-G sports. Luckily, you don’t need to sleep much living in zero gravity, so you’ll have plenty of time for relaxing by hanging out in a bar with a window looking down at the turning Earth below.
Of course all good things have come to an end, unfortunately. And so after a few days you’ll find yourself heading back to the earth. You’ll be thinking how soon you can save up enough to get back up again-or maybe you should change jobs to get to work in an orbiting hotel!
1. When traveling in space, most people would like to stay in orbit for a few days because ________.| A．it is expensive to travel in space |
| B．they would find the possible life in other star systems |
| C．they could enjoy the luxury of space hotels |
| D．they want to realise the full potential of tourism |
| A．The gravitational pull. | B．The special views. |
| C．The relaxation in a bar. | D．The space walk. |
| A．When was the space traveling made possible? |
| B．What are the unique experiences that space hotels will offer? |
| C．Why were there not many published designs for space hotels? |
| D．How can the travelers enjoy themselves in space hotels? |
| A．traveling in space | B．the ways of living in space hotels |
| C．zero gravity and space hotels | D．the description of space hotels |
