What do top minds from various fields think about     1     life will be like in 30 years? Mathematical biologist Joel Cohen says that the majority of the people in the world will live in urban areas. According to Bill Mitchell, director of MIT’s Smart Cities research group, by 2050 self-driving cars     2     (make) the roads safer, providing more efficient transports. To find out more about the predictions of future life, at nine o'clock tomorrow morning, I     3     (attend) a seminar held by the Future World Forum.

Life on Mars

Some people believe humans could live on the planet Mars by the year 2100. Our own planet, the Earth, is becoming more and more crowded and polluted because of the rapid increase in population.     1    (hopeful), people could start all over again and build     2     better world on Mars. Here is what life there could be like. At present, our spacecraft are very slow—it would take     3    (month). With the development of technology, the journey might only take about 20 minutes by 2100 in spacecraft     4     travel at the speed of light!     5    , the spacecraft would travel so fast that the journey might be quite     6     (comfort). Many people would feel ill. Humans cannot survive     7     water, oxygen or food. Nobody knows     8     there would be enough water or oxygen on Mars for people there. Gravity could be another problem. The gravity on Mars     9    (be) only about three-eighths of that on the Earth. People would have to wear boots that are specially designed to prevent     10     from floating off into space. Life on Mars would be interesting as well as challenging.