题目

John Snow was born and worked as a __36__ in Great Britain．Exactly, he was an anaesthetist，37  means that he put people to sleep during operation．He also began to experiment using the same drugs to help women when they had   38  ．That is why he became the doctor who  39  Queen victoria to give the birth of her babies．     At the time he lived，cholera was the most  40 disease．Neither its cause，nor its  41  was understood．So many thousands of people died  42  there was an outbreak．John Snow was  43 to help ordinary people   44   from cholera．He  45   the disease began in the stomach and the patients died quickly after severe vomiting(呕吐)and diarrhea (腹泄)．46  ，he believed cholera resulted from water．When another  47  hit London in 1854，John Snow set to work．     John Snow approached the problem in a systematic way．He marked on a map  48  all the dead people had lived and found many of the   49   were near a water pump．It seemed the water was the  50  ．So he collected information about the  51 habits of the dead people and used them eventually to prove his theory．With the information  52   ，John Snow was sure  that   53   water was the cause．     Then people were required to 54   the water company to supply them with clean water．Thanks __55___ John Snow there was no more outbreaks of cholera． A．scientist         B．an official     C. an officer       D．doctor A．who            B．that           C which         D．it A．pain            B．ache          C．difficulties    D．babies A．assisted with     B．took care      C．look after     D．joined A．surprising       B．interesting      C．interested    D．frightening A．cure            B．method        C．result       D．threat A．each time        B．at one time     C．in no time   D．the first time A．delighted        B．devoted        C．absorbed    D．determined A．suffered         B．having suffered  C．suffering    D．being suffered A．noticed          B．was noticing    C. has noticed   D．had noticed A．Therefore        B. As a result of    C．So         D．According to A．disease          B．disaster        C．outbreak    D．case A．how            B．where          C．what       D．in which A．women          B．men           C．death       D．injuries A．result            B．cause         C．origin       D．case A．drinking          B．1iving        C．working     D．housing A．having collected    B．being collected C．collected    D．collecting A．being polluted      B．polluted      C. polluting     D．having polluted A．take on            B．call on       C．depend on   D．carry on A．to                B．/            C．for         D．on 答案：【小题1】D 【小题2】C 【小题3】D 【小题4】C 【小题5】D 【小题6】A 【小题7】A 【小题8】D 【小题9】C 【小题10】A 【小题11】A 【小题12】C 【小题13】B 【小题14】C 【小题15】B 【小题16】A 【小题17】C 【小题18】B 【小题19】C 【小题20】A 解析: 略

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