词性变化

1．________ vt. & vi.结束；推断出→________ n．结论；结束

2．_______ vt.照顾;护理;出席；参加→_______ adj.集中精力的，认真的→

_______ n.注意力→_____________(n.) 照顾；出席；参加

3．________vt.暴露;揭露;使曝光→________

n.暴露;揭露→________adj.无遮蔽的;不挡风雨的

4________ n．& vt.治愈；痊愈→________ adj.可以治愈的

5________n.挑战→________vt.向…挑战→

__________n.挑战者→_______adj.激励的;挑战的

6．________ vt. 怀疑→________ n．嫌疑犯

→________ adj.怀疑的

7．________ vt.污染;弄脏→________ n. 污染

→________ n.污染物质→_______adj.被污染的

8．________ vt.宣布；通告→_____________ n．通知

→________ n．播音员；广播员

9．________ vt.命令;指示;教导→

_________ n.命令;指示;教导→__________adj.有指导意义的

10．________ vt. & vi.捐献；贡献；捐助

→____________ n. 贡献→____________ n．捐献者

11._______n.人们→________adj.个人的,私人的

→_________adv.亲自,就个人而言→___________n.个性，品格

12._________n.物理学→___________adj.物理的，身体的

→___________adv.身体上→____________n.物理学家→____________n.内科医生13.______vi.死→______n.死亡→_______adj.死的

→________adj.致命的,非常的,死一般的

→_________adv,非常，如死一般地

1.John Snow was a well-known doctor in London

– so expert _____ he attended Queen Victoria

as her _________(person) physician..

2.But he became _______(inspiration)

when he thought about helping ordinary people

_________(exposure) to cholera.

3.First he marked ______ a map

the exact places _______ all the dead people lived.

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

5.He became interested_____ two theories

______possibly explained how cholera killed people.

6.The second suggested that people absorbed

this disease ______ their bodies with their meals.

7.To prevent this______ happening again,

John Snow suggested that the source

of all the water supplies______________(examine).

8.Only if you put the sun there _____ the movements

of the other planets in the sky make sense.

9.Yet Copernicus’ theory is now the basis on

_______ all our ideas of the universe are built.

10.He found that it came from the river

_________(pollution)by the dirty water from London.

11.he found supporting evidence from two

other deaths that __________(link)the Broad Street outbreak.

12.Yet he could not tell anyone about his theory

as the________(power) Christian Church would have punished him.

13.So between 1510 and 1514 he worked _____ it,

gradually _________(improve) his theory until he felt it was complete.

14.He placed a ________(fix)sun at the centre

of the solar system with the planets _________(go) it

and only the moon still going round the earth.

15.. … , so he only published it as he lay

________(die)in 1543.

16.The Christian Church rejected his theory,

______(say) it was against God’s idea and people