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1. Draglines are operated where excavation has to be carried out at some distance from the machine. 2. Many basic principles are still to be established. 3. The time is nearing when international agreements will be drafted to govern the design and operation of nucleas vessels. 4. If practical answers are to be found and the factor of safety is to be put on a firm calculable basis a large number of complicated problems will have to be solved. 5. Care should be used to obtain an ample amount of light in buildings in which men are to work. 6. The drawings show how the materials are tobe incorporated into the structure, the specifications state the quality and the methods, which are to be employed.
22. Form the Nouns using the following suffixes and translate them:
-ment: to arrange, to improve, to move, to achieve, to require, to measure
-ance: to appear, to assist, to resist, to acquaint
-ing:to mean, to begin, to broadcast, to build, to draw, to coat
-ence: to exist, to depend, to differ, to insist
-ness: tough, bright, thick, cold, exact, hard, effective
-ity: intens(e), activ(e), resistiv(e), equal, elastic, electric
-age: to break, to pass, to use, volt
-er: to view, to listen, to fight, to dream, to found, to driv(e), to boil, to burn, to contain, to convert, to condens(e)
-or: to direct, to act, to creat(e), to inspect, to investigat(e), to resist, to conduct, to compress, to react, to accelerate, to ventilat(e)
LESSON 71
Read the following paragraphs of the text and define their main idea.
Write out from the text and translate the words and word-combinations connecting with the preserving the environment.
