ГРАММАТИКА: Обстоятельство. Существительное, наречие, герундий и герундиальный оборот в функции обстоятельства.
Section I
Ex. 1. Practise your reading.
As long ago as 1833, it was concludcd that electrolysis took place through the transport of electricity by mobile charged particles.
Ex. 2. State what parts of speech the following words belong to:
electron, electronic, electricity, electric, electrical, electrify, electrochemistry, clcctrolytc, electrolysis, electrolytic, clcctrolyzc, clcctrodc, electrostatic
Ex. 3. Define the meanings of the word number in the following sentences:
1. There arc a number of difficulties in the analysis of such systems. 2. My telephone number is 2530744. 3. Since the atomic number of hydrogen is 1, a single electron makes the atom electrically neutral. 4. An ion is regarded to have an clcctrovalcncc equal in number and sign to its chaigc. 5. The number of different kinds of molecules is enormous. 6. There arc a number of steps which arc common to all metallurgical processes involved in extracting a metal from its ores. 7. An idea able to explain or correlate a number of facts is called a hypothesis. 8. A great number of methods arc now in use preparing silicon.
Ex. 4. Analyse the following sentence:
A good deal of success in the study of molcculcs in the gas phase prompted chemists to attempt to build up theories of solutions in an analogous way.
Text 28 A