Question

　　书面表达

　　请以“移动电话(Mobile Phones)”为题写一篇英语作文，内容需包括以下要点：

　　(1) 手机的工作原理：声音转换成电子信号到达对方，然后再转换成声音。

　　(2) 手机在人们的日常生活中实用性强，经人们带来了许多方便。

　　(3) 但是，手机也有其危害性，如手机所发出的电磁波对人的身体有一定的危害；在机场或飞机上打手机有可能会造成事故。

要求　(1)语句通顺；

　　  (2)可适当增添内容，使文章条理清楚；

　　  (3)词数：100~120。

参考词汇：电磁波electromagnetic wave。

Answer 1

答案：
解析：

Mobile Phones 　　Mobile phones are very popular now. When you say something to the mobile phone,your voice will change into electrical signals,and then the signals are sent down to the receiving phone,where they are turned back into the sound,just the same as your voice. 　　Mobile phones are very useful to people. It is very convenient for people to keep in touch with each other,especially for those;who are far away from each other. Of course you can use mobile phones to send messages,surf the Internet,etc．However,the electro-magnetic wave from mobile phones sometimes will do harm to your body. At the airport or on the plane,mobile phones are forbidden. Otherwise,some accidents may take place.