十万个为什么·科学阅读30篇（1）

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为什么蜂蜜永不腐坏？

Honey stays edible for centuries because its chemistry strongly resists microbial growth.
It contains very little water—only about 17%—so bacteria and molds cannot absorb enough moisture to multiply.
Bees add an enzyme called glucose oxidase to nectar, which produces hydrogen peroxide as honey ripens.
This natural antiseptic further deters microbes while remaining safe for human consumption.
Its acidic pH (around 3.9) also creates an inhospitable environment for most spoilage organisms.
Archaeologists have even tasted 3,000-year-old honey from Egyptian tombs—and found it still edible.
However, honey can ferment if diluted with water or stored in humid conditions.
Modern food scientists use similar low-water, high-acid principles to preserve jams and dried fruits.

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Honey stays edible for centuries because its chemistry strongly resists microbial growth. 蜂蜜因化学性质能强力抑制微生物生长，可保存数百年而不变质。
This natural antiseptic further deters microbes while remaining safe for human consumption. 这种天然抗菌剂能进一步抑制微生物，同时对人体食用安全。
Archaeologists have even tasted 3,000-year-old honey from Egyptian tombs—and found it still edible. 考古学家甚至尝过古埃及墓葬中出土的3000年历史蜂蜜，发现仍可食用。

这篇中文题目最接近哪一句？为什么蜂蜜永不腐坏？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？蜂蜜因化学性质能强力抑制微生物生长，可保存数百年而不变质。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 Does Honey Never Spoil? How to cook noodles A maths worksheet

Honey stays edible for centuries because its chemistry strongly resists microbial growth.

Honey stays edible for centuries because its chemistry strongly resists microbial growth.

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用今天的表达，自己说一句。

例子：Honey stays edible for centuries because its chemistry strongly resists microbial growth.