:2019版高中英语必修3Unit 1 Section Ⅰ课件（牛津译林版）
Unit 1 The world of our senses
Senses are the physical means by which all living things see，hear，smell，taste，and touch.
When something stimulates receptors in a sense organ，the receptors send nerve impulses along sensory nerves to the brain.Your brain then tells you what to do.
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