Long ago, operation usually had to be done while the sick man could feel everything. The sick man had to be held down on a table by force while the doctors did their best to save him. He could feel all the pain if his leg or arm was being cut off, and his fearful cries filled the room and the hearts of those who watched.
Soon after 1770, Josept Priestley discovered a gas which is now called “l(fā)aughing gas”. Laughing gas became known in America. Young men and women went to parties to try it. Most of them spent their time laughing, but one man at a party, Horace Wells, noticed that people didn’t seem to feel pain when they were using this gas. He decided to make an experiment on himself．He asked a friend to help him．
Wells took some of the gas, and his friend pulled out one of Wells’ teeth. Wells felt no pain at all.
As he didn’t know enough about laughing gas, he gave a man less gas than he should have. The man cried out with pain when his tooth was being pulled out. 
Wells tried again, but this time he gave too much of the gas, and the man died. Wells never forgot this terrible event.
【小題1】Long ago，when the sick man was operated on, he _________．

A．could feel nothingB．could not want anything
C．could feel all the painD．could do anything
【小題2】Using the laughing gas, the people did not seem to _________．
A．be afraid of anythingB．feel painC．want to go to the partiesD．be ill
【小題3】If a man took less laughing gas than he should have when an operation went on, he _________．
A．felt nothingB．felt very comfortable
C．still felt painD．would die
【小題4】One who took too much of the laughing gas _________．
A．would laugh all the timeB．would be very calm
C．would never feel painD．would die.


【小題1】C
【小題2】B
【小題3】C
【小題4】D

解析

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