2026年通成学典课时作业本八年级英语上册外研版第40页答案
[名言警句]
Innovation can promote the advance of history.
创新能推动历史的前进。
写作演练>>
你校下周将举行英语周活动。假如你是李华,你被推荐作为活动的发言人。请你写一篇英语演讲稿,向同学介绍人类历史上一项重大发明——电脑。
要求:词数80~100(开头和结尾已给出,不计入总词数)。
[思路点拨]
1. 时态:以一般现在时为主。2. 人称:以第三人称为主。3. 写作时,按照次序先后介绍电脑的作用、电脑的优缺点以及自己的观点。
[写作提纲]

[妙笔生花]
Hello, everyone! I'm Li Hua. It's my great honour to introduce an important invention to you.
The computer is one of the greatest inventions in the world. The computers have changed the world and played an important role in our daily life. They can help solve problems and make students learn more knowledge. Computers calculate faster than we do.

But there are some disadvantages. On the one hand, using computers for a long time is bad for eyes. On the other hand, bad information on the internet can affect students' study easily.

In my opinion, it is important for us to use computers properly.

That's all! Thank you!
(更多精彩作文素材见“强基手册”)

答案

The computer is one of the greatest inventions in the world. The computers have changed the world and played an important role in our daily life. They can help solve problems and make students learn more knowledge. Computers calculate faster than we do.
But there are some disadvantages. On the one hand, using computers for a long time is bad for eyes. On the other hand, bad information on the internet can affect students' study easily.
In my opinion, it is important for us to use computers properly.

解析

【分析】
本次写作要求以李华的身份写一篇介绍电脑的英语演讲稿,需遵循“电脑的作用→优缺点→自己的观点”的顺序,时态以一般现在时为主,人称以第三人称为主,词数控制在80-100之间。首先承接已给开头,点明电脑是伟大发明,接着阐述其在日常生活、学习、计算等方面的作用;然后说明电脑的优缺点,如长时间使用伤眼、不良信息影响学习;最后表达合理使用电脑的观点,确保内容完整符合要求。
【解析】
按照写作要求依次完成三部分内容:1. 介绍电脑的作用:点明电脑是世界上最伟大的发明之一,改变了世界,在日常生活中起重要作用,能帮助解决问题、学习知识,计算速度快;2. 说明优缺点:指出长时间使用伤眼,网络不良信息易影响学习;3. 表达个人观点:强调合理使用电脑的重要性,确保语言准确,时态正确,符合词数要求。
【答案】
The computer is one of the greatest inventions in the world. The computers have changed the world and played an important role in our daily life. They can help solve problems and make students learn more knowledge. Computers calculate faster than we do.
But there are some disadvantages. On the one hand, using computers for a long time is bad for eyes. On the other hand, bad information on the internet can affect students' study easily.
In my opinion, it is important for us to use computers properly.
【知识点】
英语应用文写作、电脑相关英语表达、一般现在时运用
【点评】
本文结构清晰,严格按照写作提纲依次介绍电脑的作用、优缺点及个人观点,时态人称正确,覆盖所有要点,词数符合要求,是一篇符合要求的英语演讲稿。
【难度系数】
0.6