【写作导引】
本单元以“探索发明”为话题，属于“人与社会”主题范畴中“科学与技术”这一主题群，围绕一些伟大的发明及发明家的例子来支持自己的观点和决定。此类话题常见的写作角度涉及：①正确看待伟大的发明是如何改变人们生活的；②谈论这些发明的灵感源泉来自哪里以及发明家需具备的品质。
【写作任务】
科技改变生活，发明无处不在。请结合自身经历，谈谈哪一项发明对你的影响最大以及它是如何改变你的生活的。
要求：词数80左右(开头已给出，不计入总词数)。
Technology changes our life and inventions are around us. In my daily life,

the smartphone is the invention that has influenced me most. It helps me a lot in both my study and daily life. I used to spend much time looking up information in the city library, but now I can get all the knowledge I need on the smartphone easily. When I miss my grandparents who live far away, I can have a video talk with them anytime. It makes my life much more convenient and colourful.

【分析】
本题要求围绕“对自己影响最大的发明及它如何改变生活”写作，需结合自身经历，词数80左右且开头已给出。解题思路：1. 选取贴近生活、易展开的核心发明（如智能手机）；2. 选取2个具体事例体现发明的改变（学习上查资料、生活中与远方亲人联系）；3. 结尾总结发明带来的便利，紧扣主题，控制词数保证语句通顺。
【解析】
写作时，先承接开头点明影响最大的发明；再通过具体事例（过去查资料需去图书馆耗时，现在用手机轻松获取知识；想念远方祖父母时可随时视频通话）体现发明的改变；最后总结其让生活更便利多彩，注意语言简洁，符合词数要求。
【答案】
Technology changes our life and inventions are around us. In my daily life, the smartphone is the invention that has influenced me most. It helps me a lot in both my study and daily life. I used to spend much time looking up information in the city library, but now I can get all the knowledge I need on the smartphone easily. When I miss my grandparents who live far away, I can have a video talk with them anytime. It makes my life much more convenient and colourful.
【知识点】
英语话题写作、实用写作
【点评】
本文紧扣主题，结合自身经历选取典型事例，结构清晰，语言简洁，符合词数要求，是一篇符合要求的优秀话题作文。
【难度系数】
0.7

垃圾分类已在多地实施，但有些垃圾仍然会被投放错误。为解决这一问题，来自西安的三名高中生发明了声控垃圾桶。请你根据下列提示写一篇文章，介绍这项新发明。

要求：词数80左右，开头已给出，不计入总词数；可适当增加细节，以使行文流畅。
参考词汇：putonghua 普通话 dialect 方言
The Smart Trash Bin
Before throwing rubbish, we should sort it first. But for some people, it’s not easy to find the right trash bin for daily waste.

To help solve this problem, three students from a high school in Xi'an came up with a great idea. They invented the smart trash bin. It can understand not only putonghua but also some dialects. When you want to throw something, just say its name and then the right bin will open for you. It's not easy to create such an invention. The boys tried again and again. And it took them about three months to finish it.
The invention can surely make people's lives more convenient. The boys will continue to improve it to help more people in the future.

【分析】
这是一篇介绍发明的英语应用文，需结合题目给出的提示（声控垃圾桶的功能、发明过程），承接开头的垃圾分类难题，依次说明发明的主体、功能、创作过程，最后点明意义与改进方向，确保内容连贯、符合词数要求。
【解析】
首先承接开头的垃圾分类难题，说明西安三名高中生为解决该问题发明智能垃圾桶；接着介绍其功能：能听懂普通话和一些方言，说出垃圾名称时对应垃圾桶会打开；然后说明发明过程：多次尝试，耗时约三个月；最后点明发明的意义，以及发明者会继续改进以服务更多人，语句通顺，符合要求。
【答案】
To help solve this problem, three students from a high school in Xi'an came up with a great idea. They invented the smart trash bin. It can understand not only putonghua but also some dialects. When you want to throw something, just say its name and then the right bin will open for you. It's not easy to create such an invention. The boys tried again and again. And it took them about three months to finish it.
The invention can surely make people's lives more convenient. The boys will continue to improve it to help more people in the future.
【知识点】
英语应用文写作，发明介绍
【点评】
作文紧扣题目要求，完整涵盖了发明的功能、创作过程及未来规划，语言流畅自然，准确传达了核心信息，符合词数要求。
【难度系数】
0.5