STEM与日常科技·英语30篇（5）

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太阳能涂料如何将墙壁变为电源

Solar paint contains light-absorbing nanoparticles—like perovskites—that generate electricity when exposed to sunlight.
Unlike rigid panels, this liquid coating can be sprayed or rolled onto brick, concrete, or metal surfaces.
Each layer is only 0.3 micrometers thick, yet converts up to 15% of incoming light into usable current.
Researchers optimized the formula so it dries evenly and resists rain, UV rays, and temperature swings.
A standard 50-square-meter wall coated with solar paint produces enough energy for LED lighting and Wi-Fi all day.
Its biggest advantage is turning unused vertical surfaces into silent, decentralized power generators.
Installation requires no structural reinforcement or wiring upgrades—just clean, dry walls and daylight.
Current versions work best in diffuse light, meaning cloudy cities benefit more than expected.
Pilot projects in Rotterdam and Tokyo show 20–25% annual energy offset for apartment buildings.
This isn’t sci-fi—it’s chemistry, materials science, and urban design working in one thin, shiny layer.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

Solar paint contains light-absorbing nanoparticles—like perovskites—that generate electricity when exposed to sunlight. 太阳能涂料含有吸光纳米颗粒（如钙钛矿），在阳光照射下可发电。
Its biggest advantage is turning unused vertical surfaces into silent, decentralized power generators. 其最大优势在于将闲置的垂直表面转变为静音、分布式的发电装置。
Installation requires no structural reinforcement or wiring upgrades—just clean, dry walls and daylight. 安装无需加固结构或升级线路，只需清洁、干燥的墙面和日照。

这篇中文题目最接近哪一句？太阳能涂料如何将墙壁变为电源一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？太阳能涂料含有吸光纳米颗粒（如钙钛矿），在阳光照射下可发电。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） How Solar Paint Turns Walls Into Power Sources How to cook noodles A maths worksheet

Solar paint contains light-absorbing nanoparticles—like perovskites—that generate electricity when exposed to sunlight.

Solar paint contains light-absorbing nanoparticles—like perovskites—that generate electricity when exposed to sunlight.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：Solar paint contains light-absorbing nanoparticles—like perovskites—that generate electricity when exposed to sunlight.