This is mainly because of the great discovery made by a village doctor, Edward Jenner, in about 1798 when he published his report of his new experiment called vaccination£¨from the word “vacca” meaning a cow£©£®Jenner discovered that people who worked with cattle often suffered from a harmless disease which they caught from the cattle, but these people never seemed to get smallpox£®So he experimented by putting the disease into a small opening on the arms of healthy people, and though their arms became painful for a day or two, they soon recovered and none of these people ever got smallpox£®

So the news of the wonderful discovery spread to other countries and people rushed to their doctors to be vaccinated£®In many countries the simple way to deal with the arm was done on thousands of people, and the terrible smallpox began to disappear£®

 

1£®Which of the following is an ineffectual way of preventing the spread of smallpox£¿

A£®People going abroad should promise not to spread the disease£®

B£®Most people were vaccinated against the disease at least once£®

C£®People travelling from one country to another must prove they are vaccinated£®

D£®People must be vaccinated shortly before going to foreign countries£®

2£®The doctor's new discovery was called “vaccination” for the reason that ____£®

A£®he discovered smallpox near a farm   

B£®he was working with cattle in the countryside

C£®he experimented with a disease from the cattle

D£®people got the disease of smallpox from the cattle