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  3. George Washington Carver showed that plant life was more than just food for animals and humans. Carver’s first step was to analy

George Washington Carver showed that plant life was more than just food for animals and humans. Carver’s first step was to analy

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问题     George Washington Carver 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 life Carver 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 created. 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. Thomas Edison, inventor of the electric light, offered him a laboratory in Detroit to carry out food research. When the United States government made him a collaborator in the Mycology and Plant Disease Survey of the Department of Agriculture, 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 States Department of Agriculture. At the peak of his career, Carver’s fame and influence were known on every continent.
One of Carver’s main concern is most similar to what of present day causes?
选项
答案Recycling of used materials or To reuse the used materials
解析 通过上下文找出答案。卡弗一生为之奋斗的是对废旧物质的处理和利用。这种旧物、废物的回收和利用也是当今我们急待解决的问题。如果把卡弗一生所追求的和我们现在所从事的事业联系在一起，我们就不难发现他所追求的正是我们现在正在进行的事业之一。
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