请阅读下面短文，根据所提供的信息，回答5个问题。要求所写答案语法正确、语义完整切题。

The World Future Society(世界未来学会) writes reports about how modern technology(现代科技) will change our lives. People People may live for up to 120 years and use new technology to help them look young. The number of people over a hundred years old could go from 135, 000 today to 2.2 million by 2050. Money Worldwide e-business will become even more successful with online shops. They will sell special products(产品) for each person and the products will be brought to their houses the next day. Environment In the future wind and sun energy could become much cheaper and many more countries could use it. This would be very useful in poor countries. The air in big cities would also become much cleaner and healthier as a result. Society and culture The Internet will help to create more worldwide friendships. Families may spend more time together as people will be able to do 24-hour online banking and shopping.

【小题1】What do people do to help them look young in the future?
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【小题2】What’s the number of people who live over a hundred years old today?
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【小题3】When can people get their things with online shopping?
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【小题4】What will the air in big cities be like according to the passage?
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【小题5】How long will the online banks and shops be open in the future?
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