1 经典案例
（辽宁沈阳月考）假定你是学生李辉，学校正在举办科技节，你将参加主题为“科技改变生活”的英语演讲比赛，要求介绍一项你认为最重要的发明。内容包括：
1. 介绍你认为最重要的发明；
2. 指出其用途及选它的原因；
3. 阐明它对你的作用和影响。
Hello, everyone!
I am Li Hui from Class 3, Grade 8. It’s an honour for me to speak here.



That’s all for my speech. Thank you!
2 审题指导
审主题:介绍一项发明
审文体:应用文
审人称:第一人称
审时态:一般现在时
审要点:①介绍你认为最重要的发明;②指出其用途及选它的原因;③阐明它对你的作用和影响。

The most important invention that has changed our life, in my opinion, is the smartphone.
We can use smartphones to surf the Internet, watch educational videos, talk with our friends and family, and even pay for things without taking cash anywhere. I think it is the most important because it connects the whole world closely and breaks the limit of time and space, making our daily life much more convenient than before.
For me, the smartphone is really a good helper. When I meet difficult knowledge points that I can't understand at school, I can search for useful study notes and watch related teaching videos on it. I can also share my daily life with my parents when they are on business trips far away. It brings me a lot of convenience and helps me become more interested in learning new things.

本题要求写一篇主题为“科技改变生活”的英语演讲稿，需注意：1. 文体为应用文中的演讲稿，采用第一人称写作，主体时态为一般现在时；2. 写作要覆盖全部指定要点：首先明确介绍自己眼中最重要的发明，接着说明该发明的常见用途、阐述选择它的原因，最后结合自身情况讲明它对自己的作用和影响；3. 行文衔接自然，语言符合八年级英语的难度，表达通顺得体，符合演讲场景的表达习惯。