十万个为什么·科学启蒙30篇（3）

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太空中有能吞掉光的地方

Black holes form when massive stars collapse under their own gravity at life’s end.
Their pull is so strong that nothing — not even light — can escape past a point called the event horizon.
We can’t see black holes directly, but we spot them by watching stars orbit empty space.
Gas falling toward a black hole heats up and glows brightly before vanishing forever.
Supermassive black holes live at the center of almost every big galaxy, including ours.
A black hole’s size depends on how much mass it has pulled in over time.
If you floated near one, time would feel slower for you than for friends far away.
Scientists use radio telescopes to map invisible structures around these mysterious space objects.
No black hole is close enough to pull Earth — the nearest is over 1,500 light-years away.
Studying them helps us understand gravity, space, and how galaxies grow and change.

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

Scientists use radio telescopes to map invisible structures around these mysterious space objects. 科学家利用射电望远镜绘制这些神秘天体周围不可见结构的图像。
Studying them helps us understand gravity, space, and how galaxies grow and change. 研究黑洞有助于我们理解引力、时空以及星系的成长与演化。
Black holes form when massive stars collapse under their own gravity at life’s end. 黑洞形成于大质量恒星生命终结时，在自身引力作用下坍缩。

这篇中文题目最接近哪一句？太空中有能吞掉光的地方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？黑洞形成于大质量恒星生命终结时，在自身引力作用下坍缩。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） Space Has Places That Swallow Light How to cook noodles A maths worksheet

Scientists use radio telescopes to map invisible structures around these mysterious space objects.

Scientists use radio telescopes to map invisible structures around these mysterious space objects.

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：Scientists use radio telescopes to map invisible structures around these mysterious space objects.