任务型阅读：阅读下面短文，根据短文内容，完成下列各题。
Welcome to Share Ideas! I’m Tony Brown. This is Professor Lin. He is a scientist. He has many exciting ideas about life in the future. Let’s listen to what he has to say.
“I think in the future, traveling will be much cleaner and safer. Most cars will run on solar energy. That way, there will be less pollution. These cars will be driven by computers and there will be no accidents. All of the computers will work together with radio signals.”
“I also think that people will be able to go back to the past through a time tunnel（隧道）.If they do something wrong, they will be able to go back and do it again and try not to make the same mistakes.”
“Housework will become much easier because you will just tell a robot to do it.”
“In the future, people will be able to talk with each other on the phone more easily, and you will be able to see the person you are talking to on the screen of the cell phone .The telephone that we have today will seem out of date.”
What do you think life in the future will be like .Send us a letter.
Our e-mail address: share ideas ＠yahoo.com .See you next time.
What are they talking about?
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What will traveling be like in the future?
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How will people go back to the past?
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Why will housework become much easier?
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Where can we see the person we are talking to  ?
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