内容正文:
2019牛津英语中考专项复习---任务型阅读
第一篇
Mobile phone history
Not long ago, mobile phones were used mainly by business people and government officers in society. In the US, mobile phone users were about 340,000 in 1985. Now there are 205 million mobile phone users in the US. Studies also show that over 50 percent of children in the US own their own personal mobile phones. The mobile phone explosion (激增) has led to a huge number of waste phones. The number of mobile phones users has also increased throughout the world. In the middle of 2005, the number of total users jumped to 2.4 billion worldwide.
Mobile phone waste
When people throw their mobile phones away, they usually end up in the open air. Mobile phones include some materials like lead, mercury and cadmium. They can go into public drinking water and food and do harm to people’s health. About 75 percent of mobile phone users don’t throw their phones away. Instead, they prefer to keep the waste ones sitting around the house as they are not w