Санкт-петербургского государственного университета высшее профессиональное образование т. А. Степанова, И. Ю. Ступина
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1stepanova t a english for chemists
| it possible to systematize the facts of chemistry. 5. It was discovered that
bonds hold atoms together. 6. It was in Greece that first ideas about the structure of matter appeared. 7. There arc some unknown words in the text, translate it using a dictionary. 8. It was not until the 19th ccntuiy that the periodicity of elements was discovered. 9. Bring the book, please, it is on the table. 10. It is a new law; you must clearly understand it. Ex. 9. Translate the sentences into Russian. 1. The subject of chemistry appears to be one of the principal subjects. 2. The hypothesis is likely to be confirmed soon. 3. An atom was considered by the ancients to be an indivisible particle. 4. The approach is sure to attract the attention of the scientists. 5. These new results arc likely to be widely discussed. 6. At first the discovery did not seem to be very important. 7. The experiment is not likely to be finished at 5. 8. Calculations are said to have confirmed this idea. 9. Fundamental particles are regarded to be indivisible. 10. The atom has long been believed to be a simple particle. 11. Nobody was supposed to be informed about the observed phenomenon. 12. The reaction is supposed to give a good yield. 13. The library is reported to have got many foreign journals this month. 14. The symposium was heard to be a great success. 15. The composition of membranes was expected to be described in the next chapter. 16. Their laboratory was known to have been investigating the properties of electrodes for some ten years. 17. In old times air was thought not to be matter of any kind. 18. A reaction may be shown to occur under ordinary conditions. 19. There are known to exist several modifications of phosphorus. 20. Sulphur might be expected to occur in a number of different forms. 21. Bromine happened to be prepared in 1826.22. Chemical industry may be said to have begun in the 19th century. Ex. 10. Translate the sentences into English. 1. Древние считали, что основное свойство атомов — недели мость. 2. Оказалось, что их предположение подтвердилось. 3. Сс- 102 годня признают, что атомы состоят из меньших частиц. 4. Считает* ся, что все вещества состоят из фундаментальных частиц. 5. От крытие структуры атома, вероятно, явилось одним из важнейших открытий в науке. 6. Конечно, знание строения атома сыграло важ ную роль в развитии химии. Ex. 11. Answer the following questions: 1. What did the ancients think about the composition of matter? 2. What жүктеу/скачать 5,96 Mb. Достарыңызбен бөлісу:
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