请阅读下面短文，在所给的每个空格中填入一个形式正确、意义相符的单词。

What will our world be like in 2050? Some people make their predictions (预言) about our 【小题1】.

John is a middle school 【小题2】. He believes that we will be able to 【小题3】 in space or travel on different planets (行星). There will be many big clean hotels in space.We can fly our rockets (火箭) to the space hotels there. And we can also play sports and enjoy all kinds of interesting food.

Peter 【小题4】 in a car company. He thinks that we will have “clever” cars by 2050. We won’t have so many accidents because the “clever” cars will be able to talk 【小题5】 each other. They will slow down 【小题6】 themselves or stop in dangerous situations (情况).

What’s more, we will live a 【小题7】 life! Scientists will put our brains (大脑) onto computers, 【小题8】 we can live forever. The computers in the future won’t look 【小题9】 machines. They’ll look like humans (人类).

Most people believe that there will be much less pollution by 2050. We will build the factories on 【小题10】 moon and other planets and be back by spaceship in just a few days.