消化之旅
The Digestive Journey
追踪食物在消化系统中的旅程：食物进入口腔，牙齿把它嚼碎，唾液开始消化；接着食物经食管到达胃，再到小肠，营养在小肠被吸收，最后废物进入大肠。
Trace the journey of food through the digestive system: food enters the mouth where teeth break it down and saliva begins digestion, travels down the oesophagus to the stomach, passes through the small intestine where nutrients are absorbed, and waste moves through the large intestine
学习证据 / Evidence
- 按顺序列出消化器官：口腔、食管、胃、小肠、大肠。
- 描述每个阶段发生的变化（牙齿咀嚼，胃用胃酸搅动食物，小肠吸收营养）。
- 指出大部分营养在小肠进入血液，大肠从废物中吸收水分。
- List the organs in order: mouth, oesophagus, stomach, small intestine, large intestine
- Describe what happens at each stage (teeth chew, stomach churns with acid, small intestine absorbs nutrients)
- State that the small intestine is where most nutrients pass into the blood, and the large intestine removes water from waste
评估问题 / Assessment
如果{{name}}吃了一个三明治，能描述它从口腔到胃再到肠道的身体之旅吗？
If {{name}} ate a sandwich, could they describe the journey it takes through their body — from mouth to stomach to intestines?