Практикалық сабақтарының тақырыптары мен мазмұны Practical assignment №1
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- Бұл бет үшін навигация:
- Notes to the text
- WORDPERFECT Vocabulary: Drill Exercises I. Answer the following questions
- II. Retell the text according to the following plan
| Carbon Pollutants Carbon monoxide and carbon dioxide are both very important atmospheric contaminants. Human activities are responsible for the introduction of increasing quantities of these gases to the atmosphere. Carbon monoxide is particularly important because of its potent mammalian toxicity, while carbon dioxide is most significant because of its ability to regulate global temperature. Neither gas is tought to causedirect damage to vegetation at ambient concentrations presently monitored.
Carbon monoxide has not been shown to produce acute effects on plants at concentrations below 100 p.p.m. for exposures from one to three weeks. The threshold of carbon dioxide toxicity to plants is in such excess of ambient conditions as to be completely unimportant. The hypothesis that the increasing concentration of carbon dioxide in the atmosphere might result in elevated global temperatures, however, has enormous implications for the health of forest ecosystems. Notes to the text: 1. overwhelming 2. majority 3. to be engaged 4. so far 6. in view of 7. recent 8. verification 9. correlation 10. lubricant 11. carbon 12. poisonous 13. exhaust gas 14. valuable 15. to reduce 16. to damage 17. to prevent 18. to be responsible for WORDPERFECT Vocabulary: Drill Exercises I. Answer the following questions: 1. What is organic chemistry? 2. Why are the scientists interested in the field of organic chemistry? 3. What does the name organic chemistry refer to? 4. When was the chemistry of carbon advanced? 5. What phenomenon was found during the first half of the 19th century. 6. Where does carbon occur? 7. In that form does carbon occur in nature? 8. What gases does carbon form during its burning? 9. What properties of cabon monoxide do you know? 10. What properties of carbon dioxide do you know'? l l. What does carbon dioxide form combining with water? 12. What are very important atmospheric contaminants? II. Retell the text according to the following plan: 1. Organic chemistry 2. The chemistry of carbon 3. Elementary carbon 4. The properties of carbon 5. Carbon monoxide 6. Carbon dioxide 7. Carbon pollutants Terminology Dictionary. Find the chemical terms in the texts above and make a list of them in your vocabulary copybook CHECKLIST Module I жүктеу/скачать 64,23 Kb. Достарыңызбен бөлісу:
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