请老师写一篇关于科技的作文：发明改变了世界，改变人们的生活，比如电视机和自行车给我们带来了许多变化和便利。请你介绍电视机和自行车的用途，再发挥想象，说说你想发明的东西及它的用途或理由。 电视机：信息丰富 开阔视野 休闲娱乐 辅助学习 自行车：价格便宜 方便出行 有利环保 有益健康
解题思路： 根据汉语提示完成此文。
解题过程：
Inventions are created every day because people would like to make life easier.There are famous inventions like the TV and the bike.
TV provides us with different kinds of information so that we can know more about the world.We watch entertainment programs to relax ourselves.Besides some learning programs help us with our study.
The bicycle is very useful,too. We go to school or work by bike.It's not expensive that most of us can afford it.It makes no pollution,which is good for our environment.What's more ,bike riding is a kind of exciting sports which is quite good for our health.
Although there have been many great inventions, I wish to invent a kind of pen which can help us write more quickly and neatly.When we meet problems in doing our homework or taking exams,it will tell us how to solve them.
最终答案：略
