十万个为什么·科学启蒙30篇（1）

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植物如何自己制造食物？

Plants don’t eat food like animals do—they create glucose using sunlight, water, and carbon dioxide.
This process, called photosynthesis, happens mainly in leaf cells that contain a green pigment named chlorophyll.
Chlorophyll absorbs mostly blue and red light while reflecting green, which is why leaves appear green.
Inside tiny structures called chloroplasts, light energy splits water molecules into oxygen and hydrogen.
The plant then combines that hydrogen with carbon dioxide from the air to build glucose molecules.
Oxygen is released as a byproduct, and it’s the main source of breathable air for all land animals.
On cloudy days, photosynthesis slows down because less light energy is available to drive the reactions.
Some desert plants open their stomata only at night to save water, performing a modified version of photosynthesis.
If you place a potted plant in total darkness for several days, its leaves will gradually lose color and energy.
Interestingly, algae and cyanobacteria perform photosynthesis too—and they produce over half the world’s oxygen.

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Inside tiny structures called chloroplasts, light energy splits water molecules into oxygen and hydrogen. 在名为叶绿体的微小结构内，光能将水分子分解为氧气和氢。
Interestingly, algae and cyanobacteria perform photosynthesis too—and they produce over half the world’s oxygen. 有趣的是，藻类和蓝细菌也能进行光合作用——它们产生了全球一半以上的氧气。
Plants don’t eat food like animals do—they create glucose using sunlight, water, and carbon dioxide. 植物不像动物那样进食，而是利用阳光、水和二氧化碳制造葡萄糖。

这篇中文题目最接近哪一句？植物如何自己制造食物？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？植物不像动物那样进食，而是利用阳光、水和二氧化碳制造葡萄糖。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 Do Plants Make Their Own Food? How to cook noodles A maths worksheet

Inside tiny structures called chloroplasts, light energy splits water molecules into oxygen and hydrogen.

Inside tiny structures called chloroplasts, light energy splits water molecules into oxygen and hydrogen.

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用今天的表达，自己说一句。

例子：Inside tiny structures called chloroplasts, light energy splits water molecules into oxygen and hydrogen.