1 . Futurologists are making a lot of predictions about our future life and they are predicting how we will travel, work and live in the next 30 years. By 2048, some futurologists foresee that some “talking” buildings will appear in our life.

By the middle of the century, it’s believed that buildings will be able to “talk” to people through various sensors when the heating needs to be turned on. As a result, there will be no switches. Instead, a lot of networks will appear, which can be compared to a human nervous system. In the next 30 years, buildings will be made from concrete plastics and shape-changing materials. All of them can heal themselves at that time. As architects are racing to develop the world’s tallest buildings, there will be a need for new kinds of elevators, through which vehicles could even travel into the buildings. German engineers have already started working on such technology called Multi.

By mid-century, scientists believe that buildings will be miles tall. Some of them may be very large and they can function as small cities. By comparison, at present, the world’s tallest building, the Burj Khalifa Tower in Dubai, measures 828 metres high. As the future building can rise through the clouds, their windows will be replaced by virtual screens. In this way, people can choose any view as they like.

At height extremes, a London Spaceport is also likely to come into being by 2048 as the space industry develops very quickly. There is a huge cost advantage going to space from as high a base as possible, so a spaceport is very likely to be over 10km and even as much as 30km, using carbon - based materials.

1. How will the heating system be controlled in the future?

A．Through the net.	B．Through sensors.
C．Through switches.	D．Through mobiles.

2. What might happen to the future buildings in a disaster?

A．They can recover by themselves.	B．They can seek help automatically.
C．They can transport people into space.	D．They can protect people against harm.

3. What’s likely to be the advantage of Multi?

A．Seeing the scenes as you please.	B．Allowing vehicles to travel into buildings.
C．Connecting the earth with the space.	D．Making it possible to build high buildings.

4. What does the underlined word “they” in Paragraph 3 most probably refer to?

A．Scientists	B．German engineers
C．Future buildings	D．Virtual screens.