问题 单项选择题

有关地面水的卫生学特征,以下有一条是错误的

A.水量有季节之分,夏季丰水期,冬季枯水期
B.水易受污染,但自净能力也强
C.水的浑浊度大,细菌含量高
D.硬度低,水质软
E.如用作饮用水水源,只需消毒即可

答案

参考答案:E

解析:地面水易受污染,泥沙等悬浮物也多,如用作饮用水,必须经过水质处理,包括沉淀—过滤—消毒。而不能只是单纯消毒。

完形填空

三.完形填空(20分)

Seventeen-year-old Rivertown teenager, John Janson, was honoured at the Lifesaver Awards last night for carrying out lifesaving first aid on his neighbour after a shocking knife  36 .

John was presented with his award at a ceremony(仪式) which recognized the  37  of ten people who have saved the life of  38  person.

John had been studying in his room when he heard  39 . When he and his father rushed outside, they  40  that Anne Slade, mother of three, had been stabbed  41  with a knife by her ex-boyfriend. The man ran from the  42  and left Ms Slade lying in her front garden  43 very heavily. Her hands had almost been cut from her body.

It was John’s quick  44  and knowledge of first aid that saved Ms Slade’s life. He immediately asked a number of  45  people for bandages, but when nobody could put their hands on any, his father got some tea towels(毛巾) and  46  from their house. John used these to dress the most severe  47  to ms Slade’s hands. He slowed the bleeding by applying pressure to the wounds until the  48  and ambulance arrived.

“I’m  49  of what I did but I was just doing what I had been  50 ,” John said.

John had taken part in the Young Lifesaver Scheme at his high school. When  51  John. Mr Alan Southerton, Director of the Young Lifesaver Scheme said, “There is no doubt that John’s quick thinking and the first aid  52  that he learnt at school saved Ms Slade’s life. This shows that a simple knowledge of first aid can make a real  53 .”

John and nine other Life Savers also attended a  54  reception yesterday hosted by the Prime Minister before  55  their awards last night.

36.A. show                B. attack                   C. fight                     D. defend

37.A. bravery            B. courage                 C. achievements          D. progress

38.A. any other          B. another                  C. the other                D. others

39.A. quarrelling               B. arguing                 C. shouting                D. screaming

40.A. realized             B. believed                 C. thought                  D. discovered

41.A. repeatedly        B. rudely                   C. frequently              D. gradually

42.A. home                B. place                     C. scene                     D. garden

43.A. shaking             B. struggling              C. bleeding                D. crying

44.A. action                      B. operation                      C. experience             D. request

45.A. several              B. nearby                   C. familiar                 D. curious

46.A. water                B. tape                       C. instrument             D. luggage

47.A. damages            B. pains                     C. injuries                  D. cuts

48.A. neighbours               B. children                   C. doctor                   D. police

49. A. proud              B. fond                    C. sure                       D. tired

50.A. expected           B. taught                    C. encouraged            D. educated

51.A. praising            B. referring to            C. talking with           D. congratulating

52.A. skills                B. instructions            C. treatments                D. methods

53.A. discovery          B. contribution           C. difference              D. choice

54.A. recent                      B. public                    C. private                   D. special

55.A. giving               B. remembering          C. announcing            D. receiving

单项选择题