* ÃÐÀÌÌÀÒÈÊÀ: Ïðè÷àñòíûé îáîðîò â ôóíêöèè äîïîëíåíèÿ.
Section I
Ex. 1. Practise your pronunciation.
a) require [n'kwaid], completion [kom'pli'Jon], extremely (iks'tri:mh], neutralization [,nju:trolai'zeiJon], presumably [prfzju'.mobh], hydroxide [hai'drnksatd], collision [ko'hson], precipitate (ë) [prt'stpitot], precipitate [pn'sipiteit] (v), appreciable [o'prirjobl], circumstancc ['s3.komstons], irradiation [t.retdt'cijon], ultraviolet [.Altro'vaioht], neutron ['nju:tron]
b) thew'rateuof aj-eaction, forJtswcompletion, the^'numberwofu collisions, thcrcj^/littlc dclay, itJsu'not unusual, withJvisibleNlight
c) On the 'other/band, | ionic oxi'dation-re'duction re'actions | are 'sometimes 'very slow.
Ex. 2. Pay attention to the structure of the following words, translate them into Russian:
a) ultraviolet, ultramodern, ultrashort, ultrasound, ultrasonic
b) twofold,.threefold, fourfold, tenfold, manifold
c) ferric — ferrous, nitric — nitrous, sulphuric — sulphurous, stannic — stannous
Ô Ex. 3. Define the meanings of the word other in the following sentences:
1. Chemists and other scientists use the word "theory" in two different senses. 2. The first meaning is "a hypothesis that has been verified"; the other meaning is "a systematic body of knowledge". 3. On the basis of the experimental results of Priestley, Scheele, and others, as well as some veiy fine experimental work of his own, Lavoisier established a new concept of combustion. 4. There arc more compounds of hydrogen known than of any other clement. 5. Other conditions being equal, the conclusion was made that it proceeds faster. 6. The silver-grey coating on its surfacc is characteristic of selenium, another variety of the element is red. 7. There are some reactions which procccd veiy quickly, on the other hand, there are other reactions which are extremely slow under the same conditions. 8. It is not easy for them to work together because they don't like each other. 9. The results that were obtained in this experiment are not reliable, that implies that we should try some other approach than we have just employed.
Ex. 4. Find the predicate, the subject and the object in the following sentences:
1. We could observe the solution changing colour with time. 2. Some catalysts acccleratc reactions, others make them procccd slower. 3. It was interesting to watch Dr. N demonstrating his experiments.
Text 21 A