1 . 北京冬奥会是科技的盛会，各种高科技频繁亮相，无论是智慧餐厅还是“猎豹”摄像机，让外国媒体大呼惊艳。不仅如此，科技给我们的生活也带来了巨变。假如你是九年级一班学生王华，学校正在举办科技节，你应邀参加以“科技改变生活”为主题的演讲比赛。请你根据以下思维导图的提示，用英语写一篇短文，介绍身边的科技及其优点。

要求：
1. 要点齐全，适当发挥；
2. 句子及篇章准确、连贯，书写规范；
3. 词数：80～100词左右，开头和结尾已给出，不计入总词数；
4. 文中不得出现考生的真实姓名、学校及其它任何个人相关信息。

Hello, everyone!

I am Wang Hua in Class One, Grade 9. It’s a great honor for me to speak here.

The rapid development of science and technology has brought great changes to our life. Smart phones, robots, high—speed trains and electric cars are

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