In the future, we     1    (live) in smart homes that will keep us secure, save us energy, and provide a more comfortable environment. Smart homes will control just    2    everything in our home. They will use integrated     3    (sensor) to go into an energy-efficient mode all by itself when we leave home. In     4    (add), smart homes will be monitoring our health every day. If they find there is something    5    (normal) or you have a critical illness, they will give you a     6    (warn) early on and    7    (potential) save our life.Smart homes will also be able to prevent serious damage from accidents. If they find something wrong they will detect    8    and provide us with the relevant information for us    9    (fix) the problem. In a word, this smart technology is not a fantasy, and it will take some years    10    most new homes begin to use this new technology.

4 . The future home is something that people have talked about for decades. Because the future home idea inspires our imagination, scientists and engineers have been working hard to develop different systems to make houses “smarter”.

The video camera at the entrance recognize visitors using facial recognition. The facial recognition software of the future home will not only recognize friends, but strangers as well. And the software in the future home will run the strangers faces against a database of criminals.

The future home will also have smart application appliances (家电) as well. There will be a vast networking system connecting them. Ovens, microwaves and refrigerators will be controlled automatically, so remote cooking will be a possibility and meals are prepared for your arrival.

There will also be a green systems in place such as saving and reusing washing water and bathwater. Plants and people may receive pure or mineralized (含矿的) drinking water.

If you think this future home idea is pie in the sky or science fiction, then think again. Most of the systems described here are either in development or already out in the market. Future homes may not be standard yet for the middle class but this is not as far ahead as many people would think.

5 . We don’t know how different our life will be in the future. We can only try to imagine it.

At first we think about human relationships. In the year 2050, we will use computers almost every day. We will be making new friends through the Internet even our husbands or wives will be met in this way. It will be much faster and easier for us. On the other hand, our relationships with people won’t be as important as they are today -- we will feel a little lonely.

Computers will also help us in many other activities in 2050. For example, they will be used by the children at school to make their learning easier. In addition, there will be much more other machines which will play a similar role as computers, like robots which will do the housework for us.

Spending holidays will also be completely different. Travelling to other planets or to the moon will be available for everyone. Means of transport will, of course, change, too. We will be using solar-powered cars, which will be much more environmentally friendly.

We could expect that the faster technological progress would lead to a more polluted environment. But it isn’t true. We will pay more attention to the environment protection. Scientists will probably find cures for many dangerous diseases, like cancer or AIDS. Therefore, our surroundings as well as our health will be in better condition.

Although we can’t predict the exact changes which will be made in the world, we often think about them. We worry about our and our children’s future; we have expectations, hopes as well as fears. But I think we should be rather sanguine about our future. We should be happy and believe good things will happen.

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.

7 . 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.

In the future, the house will built with environmentally-friendly materials. The materials can produce electricity by take in air.

They can also keep the house at a pleasant temperature all year round, that makes the house more comfortably to live in. Besides, if there has an accident happening in the house, the host will receive a alarm call immediately. More importantly, once some natural disasters break off, the house can fly away to avoid it.

Although the house is still a dream, but I believe the dream will come true with the develop of science and technology.