城市汽车小队 · 4–8 岁

挖掘机的大铲子有什么本领

一块大石头和一座雨水花园

科普启蒙约 12 分钟4-8 岁中英双语

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围栏里面，一辆黄色挖掘机醒来了。安安拉住妈妈的手：“这里真的要变成公园吗？”一只小麻雀落在围栏外，好像也在等答案。

A yellow excavator was waking up behind the fence. An'an held Mom's hand. “Will this really become a park?” A sparrow landed outside the fence, as if it wanted to know too.

围栏里面，一辆黄色挖掘机醒来了。安安拉住妈妈的手：“这里真的要变成公园吗？”一只小麻雀落在围栏外，好像也在等答案。

A yellow excavator was waking up behind the fence. An'an held Mom's hand. “Will this really become a park?” A sparrow landed outside the fence, as if it wanted to know too.

林工程师在参观区展开图纸：“这里要挖一个浅浅的雨水花园，让雨水有地方慢慢渗下去。”安安指着弯弯的轮廓：“像一片大叶子！”

Engineer Lin unfolded a plan in the visitor area. “We will dig a shallow rain garden where rain can soak into the ground.” An'an pointed to its curved outline. “Like a giant leaf!”

先别挖！工作人员核对地下管线的位置，再在地面做标记。妈妈说：“看不见的地方，也要先弄清楚。”安安把这句话记进了心里。

Not yet! Workers checked where underground pipes and cables ran, then marked the ground. “We must understand the things we cannot see, too,” Mom said. An'an remembered that.

隆隆隆，挖掘机慢慢向前。它没有四个大轮子，而是踩着两条履带。宽宽的履带把重量分散开，帮助它在合适的地面上站稳。

Rumble, rumble! The excavator crept forward on two tracks instead of four big wheels. The wide tracks spread its weight and help it stand firmly on suitable ground.

大胳膊伸出去，小胳膊弯回来。安安隔着围栏跟着比画：“伸——弯——！”林工程师说：“它们叫动臂和斗杆，前面连着铲斗。”

The long arm reached out, then bent back. From behind the fence, An'an copied it. “Reach—and bend!” Lin said, “These are the boom and stick. The bucket is attached at the end.”

铲斗旁边有会伸缩的金属杆。液压油在密闭管路里传递力量，推动液压缸运动，大胳膊就能听司机指挥。不是里面藏着小巨人哦！

Metal rods beside the bucket slid in and out. Oil carries force through sealed pipes and moves hydraulic cylinders, letting the driver control the arm. There is no tiny giant hidden inside!

铲斗的牙齿碰到土，慢慢往里切。司机卷起铲斗，兜住一捧泥土。沙沙沙——安安小声配音，怕把围栏上的麻雀吓跑。

The bucket teeth cut slowly into the soil. The driver curled the bucket to hold a scoop of earth. “Shhh, shhh,” An'an whispered, making digging sounds without startling the sparrow.

履带没挪窝，上面的车身却转过去了！挖掘机把土放进旁边的指定土堆。安安睁大眼睛：“它会坐着转身！”

The tracks stayed still, but the upper body turned! The excavator placed the soil on the assigned pile. An'an's eyes widened. “It can turn while staying in one spot!”

挖一斗，转过去，轻轻放。再转回来，挖一斗。司机一边操作，一边观察周围；围栏把参观的人和工作的机器分开。

Scoop, turn, and gently empty. Turn back and scoop again. The driver watched the surroundings while working. A fence separated visitors from the working machine.

咦，铲斗停住了。泥土里露出一块大石头，像埋着半个灰色月亮。安安问：“用力敲一敲，就能把它赶走吗？”

Oh—the bucket stopped. A large stone showed through the earth like half a gray moon. “Could it knock the stone away?” An'an asked.

司机没有硬敲。他把铲斗放稳，和林工程师一起商量。先判断石头大小、重量和周围地面，再选合适的办法，比逞力气更重要。

The driver did not bang on it. He grounded the bucket and talked with Lin. They checked the stone's size and weight and the ground around it. Choosing a suitable method mattered more than showing strength.

确认这块石头能安全处理后，司机先挖开周围的土，再用铲斗稳稳托起它。石头落在指定位置，成了以后花坛边的一块景石。

After confirming it could be handled safely, the driver loosened the soil around the stone and supported it securely in the bucket. It was placed in a marked spot to become a garden rock.

雨水花园不能越挖越深。工作人员测量深度，司机再一点点修整。安安说：“原来大铲子也会做细活，不只是挖得多！”

The rain garden could not just get deeper and deeper. Workers measured the depth, then the driver carefully shaped it. “The big bucket can do delicate work, too!” An'an said.

一边平缓，一边稍高，浅浅的凹地露出了叶子形。下雨时，水会从安排好的入口流来；装得太多，还有设计好的溢流去处。

One side sloped gently, and the shallow hollow took its leaf shape. Rain would enter through a planned inlet. An overflow route would carry extra water away.

收工啦。铲斗落地，机器停稳，工作人员清理工具。隔着围栏，安安给挖掘机挥挥手：“你的大胳膊今天辛苦啦！”

Work was done. The bucket rested on the ground, the machine stopped, and workers collected their tools. An'an waved from behind the fence. “Your big arm worked hard today!”

回家后，安安用小勺和一盘湿沙做游戏。她先画范围，再轻轻挖出浅窝。妈妈问：“我们的土放在哪里，才不会又滑回来？”

At home, An'an played with a spoon and a tray of damp sand. She marked a shape and dug a shallow hollow. Mom asked, “Where should the soil go so it will not slide back in?”

找一找：哪一部分负责走，哪一部分负责伸，哪一部分负责装土？安安用玩具演给妈妈看：“履带走，胳膊伸，铲斗装！”

Can you find the part that travels, the part that reaches, and the part that scoops? An'an showed Mom with a toy. “Tracks travel, the arm reaches, and the bucket scoops!”

过了些日子，雨水花园种上了花草。细雨停后，小水洼慢慢变小。安安说：“挖掘机挖出了一个地方，让雨水也能在公园歇歇脚。”

Days later, the rain garden was planted. After a shower, its little puddles slowly shrank. “The excavator made a place where rain can rest in our park,” An'an said.

先观察、再选择方法，大力气也需要耐心和细心。

Observe first and choose a suitable method. Great strength needs patience and care.

给大人的共读锦囊

这次不考背诵，练一种生活能力

这本想陪孩子练什么

发现困难时先观察，再尝试合适的方法。

共读时别急着说

不要求孩子记住所有部件名字，先听听孩子注意到了什么。

可以这样问

挖掘机遇到石头后为什么停下来？
雨水花园为什么不一直往深处挖？

今天试试看

用小勺和浅盘湿沙挖一个浅窝，讨论土堆放在哪里；成人陪同，结束后洗手。

4–5 岁：每次听几个动作就好，允许配音、指图和重复最喜欢的一页。

6–8 岁：请孩子解释一次遇到困难后的选择，比较两种车的分工，不要求背术语。

绘本视频

将当前插图、字幕和旁白合成为适合手机分享的竖屏视频。

这本想陪孩子练什么

共读时别急着说

可以这样问

今天试试看

绘本视频

分享绘本