Grammar:
1.
The use of should, would.
2. Review of the Subjunctive Mood. Text: Colloids and Colloidal Particles.
Ex. 1.
Pronounce the following words:
colloid ['kobid] maintain [men'tein]
momentary ['moumantari] dispersion [dis'pa^an]
suspension [sos'penjn] adjoin [a'dsainj
agitation [/8ed3i'teiJ'n] dimension [di'men/n]
cease [si:s] coarse [ko:s]
supernatant ^sjuipo'neitant] suspensoid [sos'pensoid] sugar ['/чдз] emulsoid [I'mAlsoid]
Ex. 2. Read the following word combinations:
a homogeneous mixture; an adjoining layer; within a certain range; purely arbitrary; an internal phase; an external phase; definite categories; the second component.
Ex. 3. Read the following verbs:
catch—caught—caught; lower—lowered—lowered; shake— shook—shaken; lie—lay—lain; derive—derived—derived.
Ex. 4. Translate the following sentences, state the functions of the verb “should”:
You should examine all the properties of this substance very carefully. 2. I know that I should do that work in time. 3. It is necessary that this experiment should be done in our laboratory. 4. You must be very careful with this machine, so that it should work well. 5. You must leave your home earlier lest you should be late for the lesson. 6. If I could, I should help him in his investigation. 7. He suggested that this work should be carried on by the student of our Institute.
I should like to visit this new laboratory.
Ex. 5. Translate the following sentences, state the functions of the verb “would”:
One would like to know the effect of this new technique.
He said that this oxide would be less stable when heated.
If he were present at the lecture, he would certainly tell me about that. 4. When she was not so busy, she would read very much. 5. He would like to know when this device was invented.
Ex. 6. Translate the following sentences paying attention to the forms of the verbs in bold type:
1. If the solution of iodine in water had been shaken with an equal volume of ether and then allowed to stand, the mixture could have been separated into two layers. 2. If a beam of light were passed through the liquid, its path would become illuminated. 3. If he were able to take part in this work, he would do that. 4. Were he invited to deliver a lecture, he would do that with pleasure. 5. If he had weighed these substances yesterday, he would have noticed the differences in weights. 6. If hydrochloric acid is present, the liquid will
remain clear for some minutes.. 7. Should he carry out his research, the results would be known. 8. Should he made the experiment in our analytical laboratory, the results would be more reliable.
Ex. 7, Find the sentences in which the verb “could” is used to express the Subjunctive Mood:
1. He said he couldn't speed up his research. 2. I am sure he could have passed his exams much better. 3. Last year he couldn't come to Moscow as he was very busy. 4. I think you could read better, repeat this text, please. 5. I believe they could produce more devices at their plant.
term
— семестр;
термин
terms—условия
in
terms
of
— исходя
из, на
Note:
to
close—закрывать
close
to—близко
closely—тщательно
основании
to
term
— называть(ся)
1. I think that these terms have already been agreed on.
The term “work” has a special meaning in mechanics.
Chemical energy is usually expressed in terms of the heat Change. 4. The substance reduced in a redox reaction is termed the oxidizing agent. 5. These substances have been heated in a closed container for a short time. 6. He closed the ventilating hood in the laboratory after his work. 7. He studied all the properties very closely. 8. He lives close to my Institute, so I see him very often. 9. Don’t stand close to the laboratory bench, the gas is flammable.
Ex. 9. Translate the following sentences, mind the meanings of the words in bold type:
1. This is a very long way, it takes me more than fifty minutes to get home. 2. Long before our time Boyle used a new method based on laws observed in natural phenomena. 8. Having combined with the monoxide, the hemoglobin can tio longer combine with oxygen. 4. When atoms combine chemically, they no longer remain absolutely unchanged. $. It is possible to build an atomic locomotive for long railway trips. 6. The length of this pipe was not established. 7. This procedure is as long as the first one. 8. When the boiling point was reached, adding heat to the liquid couldn’t raise the temperature any longer. 9. Glass is no longer a fragile material. 10. He lengthened this tube and used it for his №
experimental work. 11. So long as he is in Moscow; I cart' see him.
Ex. 10. Write all the forms of the following verbs:
to shake, to begin, to catch, to make, to lie, to see, to settle, to maintain.