2012年职称英语卫生类A级概括大意练习题(7)_第2页

　　There is a vital need to understand the potential risks and long-term health effects of living on naturally contaminated soils. Future environmental investigations of naturally polluted soils should concentrate on the potential pathways of metals into the food chain and human body. Geologists should be part of such studies as they can provide the essential background information on rock and soil chemistry as well as the chemical forms of heavy metal pollution.
　　A. No evidence to indicate bad effects of naturally contaminated soil
　　B. Potential hazards of human contaminated soils
　　C. Research on channels of heavy metals getting into human food chain
　　D. Geology and health problems
　　E. Rocks-the ultimate source of soil pollution
　　F. Long- term health effects on children
　　1. Paragraph 1
　　2. Paragraph 3
　　3. Paragraph 4
　　4. Paragraph 6
　　A. industrially polluted soils
　　B. rock and soil chemistry
　　C. naturally polluted soils
　　D. the pathways of metals into the food chain
　　E. the element of iodine
　　F. the persistence of heavy metals
　　5. Some serious diseases is connected with deficiency of ……
　　6. It is extremely necessary to study the long-term effects caused by living on ……
　　7. Geologists are indispensable in the research project on geology and health due to their knowledge on……
　　8. Industrially contaminated sites usually require a thorough clean-up due to ……
　　Key: DABCECBF