必修5Unit 1 Great scientistsReadingJOHH SHOW DEFEATS “KING CHOLERA” 约翰斯洛击败“霍乱王John Snow was a famous doctor in London - so expert, indeed, that he attended Queen Victoria as her personal physician. But he became inspired when he thought about helping ordinary people exposed to cholera. This was the deadly disease of its day. Neither its cause nor its cure was understood. So many thousands of terrified people died every time there was an outbreak. John Snow wanted to face the
