Life in the twenty-first century（世纪） will be very different from life today.　Between then and now many changes（变化） will take place　,but what will the changes be?
　　The population（污染） is growing fast.　There will be many people in the world and most of them will live longer than people live now.
　　Computers will be much smaller and more useful,　and there will be at least one in every home.　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 travelling.　Travelling will be much easier and cheaper.　And many more people will go to other countries for holidays.
　　There will be changes in our food,　too.　Maybe no one will eat meat every day,　instead they eat more fruit and vegetables.　Maybe people will be healthier.
　　Work in the future will be different,　too　Dangerous and hard work can be done by robots（机器人）.　Because of this,　 people will not have enough work to do.　This will be a problem.
There will be _________ in the future.

A．Small population	B．Few changes
C．More people	D．Few people

In the future the computer will be _________.

A．Much bigger and few people will use it

B．Much smaller and more useful

C．Smaller and not many people will use it

D．Bigger and a lot of people will use it

In the future more people _________.

A．Will go to other countries for holidays	B．Will study at school
C．Will go earlier	D．Will work for many hours

People will prefer _________ to _________ in the future.

A．Fruit and vegetables; meat	B．Meat; fruit and vegetables
C．Fruit and meat; vegetables	D．Meat and vegetables; fruit

The robots will _________ in the future.

A．Do the dangerous work	B．Do all the work
C．Do only housework	D．Do the easy work for people