第06讲 Unit1 Science and Scientists-【寒假自学课】2023年高二英语寒假精品课（人教版2019选择性必修第二册）

第06讲 Unit 1 Science and scientists 【学习目标】 1． 复习Unit1重点单词、短语、句型 二．复习Unit1语法（表语从句） 2． 写作（重视科技事业的发展） ( 课内知识回馈 ) 一 Cholera used to be one of the most   1   (fear) diseases in the world, until a British doctor, John Snow, showed how it could be overcome. This illness causes severe diarrhea, dehydration, and    2   death. In the early 19th century,   3   an outbreak of cholera hit Europe, millions of people died from the disease. As a young doctor, John Snow became   4   (frustrate) because no one knew how to prevent or treat cholera. In time, he   5   (rise) to become a famous doctor, and even attended to Queen Victoria   6   she gave birth. However, he never lost his desire to destroy cholera once and for all. In general, doctors in those days had two   7   (contradiction) theories to explain how cholera spread. One theory was that bad air caused the disease.   8   was that cholera was caused by an infection from germs in food or water. Snow subscribed   9   the second theory. It was correct, but he still needed proof.   10   (consequence), when an outbreak of cholera hit London in 1845, Snow began to investigate. He discovered that in two particular streets the cholera outbreak was so severe   11   more than 500 people died in ten days. He was determined   12   (find) out why. Snow began by marking on a map the exact places   13   all those who died had lived. There were multiple   14   (dead) near the water pump in Broad Street (especially house numbers 16, 37, 38, and 40).   15  , some households (such as 20 and 21 Broad Street, and 8 and 9 Cambridge Street) had had no deaths. These people   16   (work) in the pub at 7 Cambridge Street. They had been given free beer, and so had not drunk the water from   17   pump. Snow suspected that the water pump was   18   (blame). What is more, in another part of London, a woman and her daughter had died of cholera after moving away from Broad Street. It   19   (seem) that the woman liked the water from the pump so much