重庆编辑 2021-04-23 15:54
Cao Chong Weighs The Elephant
曹冲称象
Cao Chong’s father is an emperor. The foreigners give him an elephant. He wants to know the weight of the elephant, but nobody can do it.
Cao Chong says, "I have an idea.Push the elephant into the boat, draw a mark on the side of the boat." After it, lead the elephant ashore.
Next, Cao Chong lets people take stones into the boat.
When the mark levels the water,weigh the stones. That’s the weight of the elephant.
This story tells us, we should be good at observing and often use our head to find ways.
词语小助手：
emperor 皇的帝
weigh 称重
weight 重量
ashore 在岸上
mark 标记
level 对准
小故事大背景：
“曹冲称象”出自《三国志》，故事讲述的是，曹冲利用船和石头称出了大象的重量。
这则故事告诉我们，遇到事情要开动脑筋，仔细想办法，利用“等量变换”，可以解决很多难题。
我来试一试：
1.完成填空。
The foreigners give an to Cao Chong’s father. He wants to know the of the elephant. Cao Chong lets people push the elephant into a , then draw a on the side of the boat.
Next, take some into the boat.Weigh the , that’s the weight of the .
2.思考讨论：
小朋友，曹冲为什么能称出大象的重量呢？如果你遇到了难题，你会怎么做？想一想，说一说吧。
故事中有这样一句话：
Draw a mark in the side of the boat.
其中，“on the side of”意为”在……的一边”。
例句：
Our school is on the side of the street.
我们的学校在街道的一边。
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