请以“My favourite invention”为题，写一篇短文介绍你最喜欢的发明，不少于6句话。
My favourite invention

One possible version：
My favourite invention
My favourite invention is the smartphone. It is a very useful tool in our daily lives. We can use it to make calls, send messages and talk to friends. We can also take photos, listen to music and learn new things with it. It helps us get information easily anytime and anywhere. It makes our lives more convenient and colourful. I believe smartphones will become even more helpful in the future.

【分析】首先确定写作主题为“My favourite invention”，选择贴近日常生活的智能手机作为介绍对象；接着围绕智能手机的实用功能（如通讯、学习、娱乐等）展开描述，体现其对生活的帮助；最后说明它带来的影响并适当展望，确保句子数量不少于6句，语言通顺、紧扣主题。
【解析】按照写作思路，先点明最喜欢的发明是智能手机，再依次介绍其用途、对生活的便利作用，最后表达对未来的展望，形成连贯完整的短文。
【答案】One possible version：
My favourite invention
My favourite invention is the smartphone. It is a very useful tool in our daily lives. We can use it to make calls, send messages and talk to friends. We can also take photos, listen to music and learn new things with it. It helps us get information easily anytime and anywhere. It makes our lives more convenient and colourful. I believe smartphones will become even more helpful in the future.
【知识点】英语话题写作、说明文写作、常用句式运用
【点评】范文紧扣主题，内容具体充实，涵盖了发明的功能、作用及意义，符合不少于6句话的要求，语言流畅自然，逻辑清晰，是一篇符合要求的话题作文。
【难度系数】0.6