(2016·潍坊中考)
Nineyearold Louis Pasteur rushed into the little house, with his face white.
“Mother！” he cried, “A mad dog has 1 my friend Henry, and now they are burning him with redhot irons(烙铁). It's terrible！”
“Rabies(狂犬病), Louis. Burning the bites is the only 2 of stopping Henry from catching the disease. ”
Henry did get rabies and died, in great 3 ， some days later. Louis Pasteur never 4 . “One day，” he thought, “I must do something to help people like Henry. ”
