【分析解答题】

George WashingtonCarver showed that plant life was more than just food for animals and humans.Carver’’s first step was to analyze plant parts to find out what they were made of. He then combined these simpler isolated substances with other substances to create new products.The branch of chemistry that studies and finds ways to use raw materials from farm products to make industrial products is called chemurgy.Carver was one of the first and greatest chemurgists of all time. Today the science of chemurgy is better known as the science of synthetics.Each day people depend on and use synthetic materials made from raw materials.All his lifeCarver battled against the disposal of waste materials, and warned of the growing need to develop substitutes for the natural substances being used up by humans.Carver never cared about getting credit for the new products he create

D、He never tried to patent his discoveries or get wealthy from them. He turned down many offers to leave Tuskegee Institute to become a rich scientist in private industry. ThomasEdison, inventor of the electric light, offered him a laboratory inDetroit to carry out food research. When the United States government made him a collaborator in the Mycology and PlantDisease Survey of theDepartment ofAgriculture, he accepted the position with the understanding that he wouldn’’t have to leave Tuskegee.An authority on plant diseases-especially of the fungus variety—carver sent hundreds of specimens to the United StatesDepartment ofAgriculture.At the peak of his career,Carver’’s fame and influence were known on every continent. According to the passage, chemurgy can be defined as_______________________.