身边的经济学·社会常识英语30篇（9）

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为何你的回收箱未必减少垃圾

Recycling only works if materials are clean, sorted correctly, and have buyers worldwide.
When China stopped importing many U.S. plastics in 2018, tons of recyclables piled up or got burned.
Some ‘recyclable’ packaging contains mixed layers—like chip bags—that machines can’t separate.
Cities pay processors to handle materials; if oil prices fall, plastic becomes cheaper to make than recycle.
Composting food scraps cuts landfill methane, but few homes have bins or local pickup.
Reusable bottles and cloth bags help more than perfect recycling—if used regularly.
Policy matters: bottle deposit laws raise return rates above 90% in Germany and Norway.
Good waste systems combine habits, technology, and smart rules—not just good intentions.

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

Some ‘recyclable’ packaging contains mixed layers—like chip bags—that machines can’t separate. 一些标有‘可回收’的包装（如薯片袋）由多层复合材料制成，机器无法分离。
Reusable bottles and cloth bags help more than perfect recycling—if used regularly. 只要坚持使用，可重复使用的水瓶和布袋比追求完美回收更有效。
Good waste systems combine habits, technology, and smart rules—not just good intentions. 完善的垃圾管理体系需习惯、技术与合理规则相结合，而非仅靠良好意愿。

这篇中文题目最接近哪一句？为何你的回收箱未必减少垃圾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？回收只有在材料干净、分类正确且全球有买家的情况下才有效。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） Why Your Recycling Bin Doesn’t Always Mean Less Waste How to cook noodles A maths worksheet

Some ‘recyclable’ packaging contains mixed layers—like chip bags—that machines can’t separate.

Some ‘recyclable’ packaging contains mixed layers—like chip bags—that machines can’t separate.

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：Some ‘recyclable’ packaging contains mixed layers—like chip bags—that machines can’t separate.