16. point of view 态度，观点，看法

　　17.（be）strict with sb. 对某人要求严格

　　II. Sentences

　　1. John Snow was a well-known doctor in London - so famous, indeed, that he attended Queen Victoria to ease the birth of her babies.

　　约翰·斯诺曾经是伦敦一位著名的医生――他的确太负盛名了，所以维多利亚女皇生孩子时都是他去照料，帮助她顺利分娩。

　　2. But he became inspired when he thought about helping ordinary people exposed to cholera.

　　但当他一想到要帮助患病的普通老百姓，特别是那些得了霍乱的患者时，他就感到很振奋。

　　3. Neither its cause, nor its cure was understood.

　　人们既不知道它的病源，也不了解它的治疗方法。

　　4. He knew it would never be controlled until its cause was found.

　　他知道，在找到病源之前，疫情是无法控制的。

　　5. He got interested in two theories explaining how cholera killed people.

　　霍乱之所以能致人于死，当时有两种看法，斯诺对这两种推测都很感兴趣。

　　6. The second suggested that people absorbed this disease into their bodies with their meals.

　　第二种看法是在吃饭的时候人们把这种病毒引入体内的。

　　7. He believed in the second theory but needed to prove he was correct.

　　他相信第二种说法，但是需要证明他是正确的。

　　8. It seemed that the water was to blame.

　　看来要归罪于饮用水了。