Engineers have designed a small transparent (透明的)window to hold the seed. They have made sure it only grows when the phone is thrown away.

　　“We've only put sunflower seeds into the covers so far. But we are working with plant experts to find out which flowers would perform best. Maybe we could put roses in next time，” said one scientist.

　　As phone technology is developing so quickly people are constantly (经常地) throwing their mobiles away. This means manufacturers are under pressure to find ways of recycling them.

　　Some 650 million mobile phones have been sold this year. Most of them will be thrown away within two years, adding plastic, heavy metal and chemical waste to the environment. A biodegradable cover can offer some relief for nature, according to the scientists.

　　“The seed is released and the flower grows in the pot so you don't have to concern yourself with the phone when you have finished using it，” said Kerry Kirwan. She leads the research team, which is based at the University of Warwick in Britain.

　　语篇解读：本文是一篇说明文。文章介绍了科学家计划推出的一种可生物降解的手机。希望这种新型手机能鼓励消费者进行回收再利用。

　　5．After you have finished using the new type of mobile phone, ________.

　　A．the sunflower seed will come out and flower wherever you throw it

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