2017年职称英语考试卫生C类概括大意练习Geology and Health

　　【摘要】2017年职称英语考试备考进行中，网校为帮助大家备考特分享了“2017年职称英语考试卫生C类概括大意练习Geology and Health”，希望备考2017年职称英语考试的考生都能顺利通关，更多资料敬请关注环球职称英语考试频道！

　　相关推荐：2017年职称英语考试卫生类阅读理解练习汇总

　　Geology and Health

　　The importance of particular metals in the human diet has been realized within the past few decades, and the idea that geology might be related to health has been recognized for a number of elements such as iodine, zinc and selenium. For example, soils with low iodine contents produce crops, and animals deficient in iodine. A lack of iodine in the human diet leads to some serious diseases.

　　The ultimate source of metals within the human body is rocks, which weather into soil, gaining or losing some of their chemical constituents. The crops we eat selectively remove from the soil the elements that they require for growth. The water we drink contains trace elements leached from rock and soil. Thus the geology and geochemistry of the environments have effects on the chemistry and health of plants, animals and people.

　　So far there is no data to suggest that people living on metal-rich soils experience a potential health hazard. The levels of metals within naturally contaminated soils are generally not high enough to cause serious health problems. Living on metal-rich soils does not represent a health risk unless large quantities of soil are digested or metal-rich dust is inhaled. However, small children are particularly exposed to metal-rich topsoil in playgrounds and gardens. They are also the most likely ones to eat potentially dangerous metal-rich soil.

　　Heavy metals are persistent; they do not break down to other chemicals in the environment. Industrially polluted sites usually undergo intensive clean-up and rehabilitation because heavy metals are a health concern once they enter the food chain. Some trace metals are alleged to cause cancer and are also known to cause poisoning.

　　In contrast, naturally contaminated soils have not been subject to risk assessment studies and rehabilitation measures, despite the fact that they frequently possess metal concentrations well above those of such polluted by humans and above environmental quality criteria.

　　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

2017年职称英语考试复习重点句型汇总

2017年职称英语考试题型分析

2017年职称英语考试复习指导

2017年职称英语考试备考经验汇总

　　环球网校友情提示：本文整理“2017年职称英语考试卫生C类概括大意练习Geology and Health”供考生参考练习。如果您在此过程中遇到任何疑问，请登录环球网校职称英语频道及职称英语论坛，我们随时与广大考生朋友们一起交流!

　　【摘要】2017年职称英语考试备考进行中，网校为帮助大家备考特分享了“2017年职称英语考试卫生C类概括大意练习Geology and Health”，希望备考2017年职称英语考试的考生都能顺利通关，更多资料敬请关注环球职称英语考试频道！

　　相关推荐：2017年职称英语考试卫生类阅读理解练习汇总

　　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: DABC ECBF

　　环球网校职称英语热门套餐推荐：

套餐

职称英语《零基础VIP套餐》

包含班次

专享服务

超值赠送

重学保障

 考试不过第二年免费重学！

咨询课程　　　　　　　　点击报名

2017年职称英语考试复习重点句型汇总

2017年职称英语考试题型分析

2017年职称英语考试复习指导

2017年职称英语考试备考经验汇总

　　环球网校友情提示：本文整理“2017年职称英语考试卫生C类概括大意练习Geology and Health”供考生参考练习。如果您在此过程中遇到任何疑问，请登录环球网校职称英语频道及职称英语论坛，我们随时与广大考生朋友们一起交流!

相关知识

2017年职称英语考试卫生C类概括大意练习Geology and Health
2021年中级商务英语口语考试主题练习（3）
2017年高考英语备考：高考英语满分作文及翻译(3)
2023年重庆健康职业学院高职分类考试英语模拟试题
英语中考复习Health and Fitness课件.ppt
群体心理卫生,Community psychological health英语短句,例句大全
职称考试软件选择哪些 最新职称考试软件推荐
（卫生）职称考试评审
2025年长沙医药健康职业学院单独招生考试职业技能测试基本要求和考试大纲
体质与健康测试,Physique and health test英语短句,例句大全

网址: 2017年职称英语考试卫生C类概括大意练习Geology and Health https://www.trfsz.com/newsview1840053.html