The home of the future won't be
Space holidays will develop in the future, but these holidays won't be for everyone because they are
According to the laws of physics, the earth is going to
2 . The sea could be the food bowl of the future. In Jervis Bay, south of Sydney, seaweed, which is rich in fibre and omega 3, is grown and harvested.
Pia Winberg is a marine scientist who runs Australia's first food-grade fanned seaweed company. Her crop is grown alongside mussels (贻贝)and is used as an additive in pasta (意大利面)and other products.
Seaweed is also raised in large tanks, where it absorbs carbon dioxide waste from a wheat processing factory. The business is small, but could help to reduce the ecological footprint of traditional farming.
“We used ten percent of seaweed instead of wheat in breads and pastas, we've eliminated a million hectares of land, we've eliminated all of the carbon dioxide emissions associated with that, and we've also reduced the pressures on very precious fresh water.” said Pia Winberg.
Spiny sea urchins (多刺海胆虫)are another blue economy resource. They can destroy marine habitats, but a recent competition for environmental start-ups in Australia, saw them not as a pest but a delicacy (美味).
Martina Doblin, CEO of Sydney Institute of Marine Science, said, “By 2050 we will have some ten billion people on the planet, and about half the food they eat will come from the ocean. So, we really do need to pay attention to the way that we manage the blue economy-generating wealth from the ocean but in a sustainable (可持续的)way.”
Farming at sea has its challenges. Infrastructure (基础设施)has to be sound, as do supply chains and biosecurity. But get these things right, and the ocean might just be the next great economic frontier.
1. What is the function of the first paragraph?| A．To lead to the main topic. |
| B．To describe a new kind of seaweed. |
| C．Tell how important the food safety is. |
| D．To explain the meaning of blue economy. |
| A．Ocean exploration has made little progress so far. |
| B．More and more people will die of hunger in the future. |
| C．More work is needed for a better use of the natural resources. |
| D．Sea farming will be a good way to solve the coming world food problem. |
| A．Skeptical. | B．Objective. | C．Tolerant. | D．Negative. |
| A．How to Protect the Marine Animals |
| B．Measures to Develop Blue Economy |
| C．Farming the Sea for the Future of Food |
| D．Traditional Farming is Gradually Disappearing |
3 . European researchers say they have created a process that can produce oxygen from moon dust. The process could provide a major source of oxygen for humans taking part in moon exploration activities in the future. Researchers from the European Space Agency，or ESA，carried out the experiments at a laboratory in the Netherlands.
The team says ESA’s experimental“plant”was able to successfully produce oxygen from simulated moon dust. The dust is part of a material known as regolith，a top layer of dirt and rock pieces that sit on the surface of the moon. Samples of regolith returned from the moon have confirmed that the material contains about 45 percent oxygen by weight. However，the oxygen is chemically locked in the form of minerals or glass，so it is not easily available for use. Having real samples of regolith from the moon made it possible for the researchers to create the simulated moon dust material used during testing.
The oxygen extraction(提取)process is carried out using a method called molten salt electrolysis(熔盐电解). This includes first placing the regolith in a metal container. Calcium chloride salt is added to the mixture，which is then heated to 950 degrees Celsius. At this temperature，the regolith remains solid. Next，an electrical current is passed through the material. The researchers say it is this step that results in oxygen being extracted from the regolith. The study reported that up to 96 percent of oxygen in the simulated moon dust was extracted during the experiments.
ESA’s long-term goal is to design an oxygen-producing“pilot plant”to operate full-time on the moon. The first technology demonstration of the system is expected to take place in the middle 2020s. Beth Lomax，a lead researcher on the project，said，“Being able to acquire oxygen from resources found on the moon would obviously be hugely useful for future lunar settlers，both for breathing and the local production of rocket fuel. ”The researchers reported that“as a bonus，”the process also results in the production of usable metallic materials.
ESA and the US space agency NASA are both working on plans to return human beings to the moon. NASA has set a goal for 2024 with the aim to keep humans on the moon for long periods.
1. Why is oxygen from moon dust difficult to use?| A．It is tough for human beings to get moon dust. |
| B．It is chemically fixed in materials or glass. |
| C．The conditions of moon dust are terrible. |
| D．There exits only a little of it. |
| A．What molten salt electrolysis is. |
| B．Where the value of the study lies. |
| C．How oxygen is extracted from moon dust. |
| D．What is necessary in the oxygen extraction process. |
| A．Positive. | B．Skeptical. |
| C．Cautious. | D．Indifferent. |
| A．Recent Studies of Moon Dust by Researchers |
| B．How Researchers Extracted Oxygen from Moon Dust |
| C．Potential Significance of Oxygen Extracted from Moon Dust |
| D．Researchers Report Extracting Oxygen from Moon Dust Successfully |
4 . Do you want to live another 100 years or more? Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.
“I think we are knocking at the door of immortality(永生),” said Michael Zey, a Montclair State University business professor and author of two books on the future. “I think by 2075 we will see it and that’s a conservative estimate(保守的估计).”
At the conference in San Francisco, Donald Louria, a professor at New Jersey Medical School in Newark said advances in using genes as well as nanotechnology(纳米技术) make it likely that humans will live in the future beyond what was possible in the past. “There is a great effort so that people can live from 120 to 180 years,” he said. “Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years.”
However, many scientists who specialize in aging are doubtful about it and say the human body is just not designed to last past about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and organs will finally lead all humans to death.
Scientists also differ on what kind of life the super aged might live. “It remains to be seen if you pass 120, you know; could you be healthy enough to have good quality of life?” said Leonard Poon, director of the University of Georgia Gerontology Centre. “At present people who could get to that point are not in good health at all.”
1. By saying“we are knocking at the door of immortality”,Michael Zey means_________.| A．they have got some ideas about living forever |
| B．they believe that there is no limit of living |
| C．they are able to make people live past the present life span |
| D．they are sure to find the truth about long living |
| A．the human body is designed to last past about 120 years |
| B．it is possible for humans to live longer in the future |
| C．it is still doubtful how long humans can live |
| D．people can live from 120 to 180 |
| A．a great effort |
| B．the conservative estimate |
| C．the idea of living from 200 to 300 years |
| D．the idea of living beyond the present life span |
| A．No Limit for Human Life |
| B．Living Longer or not |
| C．Science,Technology and Long Living |
| D．Healthy Lifestyle and Long Living |
5 . On paper, hydrogen（H2）looks like a dream fuel. Coal, oil, and natural gas produce carbon dioxide, which warms the earth when burned, Hydrogen produces pure water. Hydrogen packs more energy into less space than a battery（but certainly less than petrol）. Also, empty tanks（燃料箱）can be refilled with hydrogen much faster than refilling empty batteries with electricity.
While in practice, things are trickier. Storing a meaningful amount of hydrogen gas requires pressing it several hundred-fold. Changing it into the liquid form is another option, but it should be cooled to-253C. Both processes require a heavy and strong tank. While a 700 bar tank is acceptable for a city bus or a truck, adapting it for use in small vehicles is very difficult because the pressure during refilling would be too great.
The solution? Powerpaste.
A German team of researchers, led by Marcus Vogt, have come up with an interesting "powerpaste", which can store hydrogen energy at atmospheric pressure, ready for release when needed. It is so named because it comes in tubes and looks like toothpaste（牙膏）, not in its traditional form of gas.
The main ingredient（原料）of the paste is magnesium hydride, a substance that reacts with water to form hydrogen. The escaped hydrogen can then be directed into a fuel cell, where it reacts with oxygen from the air to produce electric power.
Refueling is very simple, as instead of going to a filling station, drivers and riders can simply replace an empty tube with a new one and refill the water tank.
Given that powerpaste only begins to break down at temperatures of around 250℃ it remains safe even when a vehicle stands in the baking sun for hours.
However, we will have to be patient. Just because researchers have succeeded in developing a new fueling way does not mean that we can expect to see such vehicles on the road anytime soon. It will indeed be several years before this concept is turned into reality.
1. As a fuel, what is the advantage of hydrogen over oil?| A．Refilling empty tanks will be more convenient. |
| B．It is less likely to worsen global warming |
| C．More energy can be packed in the same space. |
| D．It will produce pure water for people to drink. |
| A．The practical difficulties to use hydrogen as fuel in small vehicles. |
| B．The detailed processes of adapting a strong tank in small vehicles. |
| C．The differences in fueling between large vehicles and small ones. |
| D．The tricks of building strong tanks in small vehicles. |
| A．inexpensive | B．powerful | C．convenient | D．environment-friendly |
| A．Powerpaste-driven vehicles sometimes move very slowly on the road. |
| B．Practical use of powerpaste-driven vehicles will not come very soon. |
| C．Powerpaste-driven vehicles can only work after being in the sun for hours |
| D．It will be years before the researchers work out the concept of powerpaste. |
1.介绍大学；
2.陈述理由；
3.表达期待。
注意：
1.词数100左右；
2.可以适当增加细节，以使行文连贯。
My Ideal University
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Some scientists think
However, scientists will need to terraform Mars for people to be able to live. Terraforming means changing the environment on a planet so that it is similar to Earth's. One of the main goals of terraforming Mars is to warm it up
Another big concern for scientists is whether humans can move to Mars and still live
Scientists and engineers
Two American researchers, Andrew McKenzie from the University of Kansas and Jeffrey Punske of Southern Illinois University, have explored one possible problem with such travel. They considered the possibility
Languages naturally change as communities grow more isolated from each other, the researchers noted in the paper. The long isolation of a community could lead to enough differences in language to make
The researchers say one possible solution to
9 . Where is the future going?
Our work habits have changed a lot over the past thirty years. While our parents may have expected to stay in one job, with one company, for their whole life, we are faced with the possibility of changing jobs and even careers several times. Our understanding of education, work and society is different from that of earlier generations.
People in the future will still need food, of course, but the way we produce food will not be the same.
What about people who work with computers? Well, things will change for them, too. More advanced computer programs and new technologies will remove the need for computer operators who perform simple actions. Modern search engines can do many of the things that yesterday's computer operators did. Word processing and simple information handling can be done automatically.
A rapidly changing job market also creates new challenges for students, teachers and parents.
| A．What life will be like in the future is difficult to predict. |
| B．Not only the way we work and view the job has changed. |
| C．It is hard to imagine where all these advanced technologies will lead us. |
| D．For people with these skills, there will be new jobs as database managers. |
| E．Where is the future going and what can we do to find a place for ourselves in it? |
| F．Small farms that use old methods will be replaced by large farms with high efficiency. |
| G．The difference in values, skills, education and desires between two generations is growing. |
10 . You are just waking up in the spring of 2030. Your Internet of Things bedroom opens solar-powered e-windows and plays gentle music while your smart lighting displays a montage(蒙太奇) of beachfront sunrises from your recent vacation.
Your shower uses very little water or soap. It recycles your grey water and puts the extra heat back into your home's integrated operating system. While you dress, your artificial intelligence (Al) assistant shares your schedule for the day and plays your favourite tunes.
You still start your day with caffeine but it comes from your loT refrigerator which is capable of providing a coffeehouse experience in your home. A hot breakfast tailored to your specific nutritional needs (based on chemical analysis from your trips to the "smart toilet") is waiting for you in the kitchen.
When it's time to leave, an on-demand transport system has three cars waiting for you, your spouse and your kids. On the road, driverless cars and trucks move with mathematical precision, without traffic jams. Accident rates are near zero.
En route, you call your R&.D team, who are wrapping up a day's work in Shanghai. Your life-sized image will be projected,which makes your colleagues see you as if you were sitting with them. It's a bit surreal(超现实的)for them to see you in the morning light given that it's dark on the Bund, Shanghai's waterfront, though the novelty fades after a few uses.
You review the day's cloud-based data from your Shenzhen manufacturing centre, your pilot project in San Diego, and your QA team in Melbourne. The massive datasets are collected in realtime from every piece of equipment and have been beautifully summarized by your company's AI. All these facilities are closely maintained and operated via a skilled predictive analytics platform. Pleased with the team's progress, you end the call and ease into a good book. This is the future and it will be here sooner than you think.
1. What will happen when you dress yourself according to the text?| A．Your schedule is sent to your boss. |
| B．Bedroom opens quickly. |
| C．Your favourite tunes are played. |
| D．Your coffee is ordered and served. |
| A．Made specially. |
| B．Mixed similarly. |
| C．Produced in advance. |
| D．Invented traditionally. |
| A．Because the team makes progress. |
| B．Because your images are wrapped up. |
| C．Because you did it ahead of time. |
| D．Because your life-sized picture is projected. |
| A．Why we need AI assistants. |
| B．What life will be like in 2030. |
| C．How we find meaningful work in the future. |
| D．How AI helps you lead an important life. |
