Unit 3 主题写作专项素养提优 学案 2025-2026学年外研版英语八年级上册

Unit 3 主题写作专项素养提优
话题概述
本单元的话题是“发明创新”，要求学生根据提示介绍某项发明。该话题通常以说明文的形式出现，时态多为一般现在时；如果介绍发明过程，则要用一般过去时。此类文章通常涉及如下内容：①介绍某项发明的外在特征；②介绍某项发明的用途和特点；③介绍你对该项发明的评价或期望等。
写作实例
假如你发明的“飞行单车”在学校科技节中获奖，你被推荐参加一个国际青少年科技展览。请根据以下提示内容，用英语介绍你的发明，并表达你对该发明的评价和期望。
提示：1.外观：两个轮子(wheel)，两只翅膀；2.用途：可行驶于地面或空中，可拍照;3.特点:速度快,使用太阳能(solar power),环保;4.改进计划(自行发挥1——2点)。
注意：1.必须包含上述所有要点；2.词数80左右(文章的开头已给出，不计入总词数)。
My invention is a flying bike.
审题指导
答案1.体裁：说明文。2.时态：以一般现在时为主。3.人称：以第三人称为主。
4.必备词句:①on land 在陆地上;②in the air 在空中;③turn into 变成;④instead of 代替,而不是;⑤pollute the air污染空气;⑥at the same time 同时;⑦in a shorter time 在更短的时间内;⑧fall inlove with...爱上……;⑨It can be used to take photos, too. 它还可以用来拍照。⑩I think that lots ofpeople will fall in love with it! 我觉得许多人都会爱上它!
谋篇布局
佳作剖析
优秀范文
My invention is a flying bike.①It is fast, convenient and green!
The flying bike has two wheels and two wings. It can run on land and fly in the air. If you say“fly” to the bike, it will turn into②a plane in 30seconds. Then you can fly in the air. It can be used to take photos, too.Instead of ②petrol, the bike uses solar power, so it will not pollute the air. I will put one more seat at the back of it so that③ it can carry two persons at the same time.
My invention is useful. You can use it to go to farther places in a shorter time. I think that④ lots of people will fall in love with it!
亮点评析
①开门见山，引出发明内容。
②使用 turn into、 instead of等短语丰富了文章表达，提升了本文的档次。
③使用 so that 引导的目的状语从句引出对“飞行单车”的改进计划，使得行文连贯、逻辑性强。
中小学教育资源及组卷应用平台
④以“I think that……”句式表达自己对这项发明的期望。
以读促写 以下内容摘自本单元所选题目
①change the world;②make a difference;③encourage... to do sth.;④be able to;⑤what's more;
⑥Great inventions change the world. They help people live a better life. ⑦The following are three of the most important inventions in history.
写作实战
假如你们学校开展科技节活动，你发明了送餐机器人，请根据以下提示介绍你的发明，以“Myinvention”为题，写一篇80词左右的短文，可以适当发挥。
要点：
1.有一个圆圆的身体，和儿童一样高，依靠轮子移动；
2.会唱歌、跳舞，甚至还会查询信息；
3.可以用声音控制，可以根据指令四处走动；
4.两个优势：(1)比人更擅长做它的工作，因为任何时候都能送(deliver)餐；
(2)……(请自己补充);
5.我的发明在学校很受欢迎。我喜欢这个发明的原因有……(请自行补充)。
My invention
Today, I want to introduce my food delivery robot to you.
Unit 3主题写作专项
基础版范文
My invention
Today, I want to introduce my food delivery robot to you.
It has a round body. It is as tall as a child. It can move with its wheels. It can do many things, such as singing, dancing, and searching for information. I can use my voice to control it and it can move around according to my orders.
It has two advantages. The first one is that it can do better in delivering food than humans, because it can deliver food at any time. The second is its function. It can keep the food warm.
My invention is very popular in our school. I also like it very much because it can be a good helper in our life.
进阶版范文
My invention
Today, I want to introduce my food delivery robot to you.
It is a creative robot with a round body. It is as tall as a child. It can move around freely with the help of its wheels. It can sing and dance. It can also search for information on its own. I can control it by my voice. For example, when I speak to it and give it some orders, it can follow my orders and then do things correctly.
There are two advantages. The first one is that it can deliver food better than humans because it can do it anytime and never get tired. The second one is that it has a special heating system that can keep food warm.
My invention is very popular in our school. I'm also fond of it because it can make food delivery more convenient.