假如你是广州电视台“科技博览”节目的编辑，每周你们栏目要向观众介绍一项科技发明。本周你们栏目要用英语向观众简要介绍手机。请你为栏目主持人准备一篇英文稿，内容必须包括：
1．手机被视为大发明的原因；
2．现在手机的主要功能；
3．你认为未来的手机会……。
要求：1.词数150左右；

2．开头已经为你写好，不计入总词数。

This is GZTV, Science and Technology View. We are now on the air with a 45­minute regular program to bring you a big invention — cellphones.

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