rú如guǒ果nǐ你qù去guò过měi美lì丽de的dà大hǎi海biān边dù度jiǎ假，yī一dìng定huì会fā发xiàn现yī一gè个shén神qí奇de的zì自rán然xiàn现xiàng象：hǎi海shuǐ水měi每tiān天dōu都huì会xiàng像dìng定hǎo好le了nào闹zhōng钟yī一yàng样，guī规lǜ律dì地zhǎng涨shàng上lái来，guò过jǐ几gè个xiǎo小shí时yòu又qiāo悄qiāo悄tuì退xià下qù去，zhè这zài在kē科xué学shàng上jiào叫zuò做“cháo潮xī汐”。zhè这shì是shuí谁zài在mù幕hòu后cāo操kòng控zhè这gǔ股jù巨dà大de的hǎi海shuǐ水lì力liàng量ne呢？xiǎo小xióng熊māo猫gào告sù诉nǐ你：zhè这qí其shí实shì是guà挂zài在tiān天shàng上de的yuè月liàng亮jiě姐jiě姐zài在shī施zhǎn展tā它de的“yǐn引lì力mó魔fǎ法dà大sǎn伞”！yuè月liàng亮yòng用xiǎo小shǒu手qīng轻qīng轻xī吸yǐn引lā拉chě扯zhe着dì地qiú球shàng上de的hǎi海shuǐ水，pèi配hé合tài太yáng阳gōng公gōng公de的yǐn引lì力，ràng让hǎi海píng平miàn面qǐ起qǐ起luò落luò落。tè特bié别shì是zài在mǎn满yuè月hé和xīn新yuè月de的shí时hòu候，liǎng两gǔ股lì力liàng量hé合zài在yī一qǐ起，hǎi海shuǐ水huì会zhǎng涨dé得chāo超jí级gāo高，xíng形chéng成zhuàng壮guān观de的“dà大cháo潮”。hǎi海biān边de的yú渔mín民shū叔shū叔hé和chōng冲làng浪de的dà大gē哥gē哥měi每tiān天dōu都yào要kàn看jīng精zhǔn准de的cháo潮xī汐biǎo表lái来ān安pái排huó活dòng动ne呢。suī虽rán然wǒ我men们zhù住zài在nèi内lù陆de的xiǎo小péng朋yǒu友gǎn感jué觉bù不dào到，dàn但kě可ài爱de的yuè月liàng亮měi每tiān天dōu都zài在yè夜kōng空zhōng中qiāo悄qiāo悄lā拉chě扯zhe着dì地qiú球de的dà大hǎi海ne呢！

If you've ever vacationed at a beautiful beach, you must have noticed a magical natural phenomenon: the ocean water rises up regularly and then quietly rolls back down a few hours later, just as if it had an alarm clock set. This is called 'tides' in science. Who is behind the scenes controlling this massive force of seawater? Little Panda tells you: it is actually sister Moon in the sky working her 'gravity magic'! The Moon uses its tiny hands to gently pull and tug at Earth's ocean water, teaming up with Grandpa Sun's gravity to make the sea level rise and fall. Especially during full moons and new moons, the two forces combine to push the water super high, creating spectacular 'spring tides.' Fishermen and surfers rely on precise tide tables every day to plan their activities. Even though children living inland can't feel it, the lovely Moon is quietly tugging at Earth's oceans from the night sky every single day!

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你抬头看天空的方式，和今天学的太空知识有什么联系？ How does looking at the sky connect to today's space fact?

📚 Vocabulary

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🎯 Fun Challenge

海水每天像定好了闹钟一样规律地涨落，这种自然现象在科学上叫什么？

The sea rising and falling regularly every day, as if by an alarm clock, is scientifically called what?

💡 想一想刚才读到的内容。 Think about what you just read.