Task 2. Correct the mistakes in the sentences.

1.The lecturer of mathematics had a high salary at those times.

2. Galileo had only friends while doing his research.

3. He never lectured to princes and nobles.

4. People came to listen to him only when they were free because his lectures were not so popular.

Task 3.Explain the term “Light Industry” in details.

VARIANT 14

Task 1.Read and translate the text.

Newton's life falls into three distinct sections: the first covers his boyhood in Lincolnshire, the second — his life at Cambridge from 1661; the third — his work as a highly-paid government official from 1696 to his death in 1721. In 1697 ha was appointed Master of the Mint, a well-paid government post that robbed the world of its genius for a quarter of century, as during this period Newton produced very little original mathematical or scientific work. In 1685 Newton incorporated his lectures on the laws of motion, delivered at Cambridge, into his world famous masterpiece «The Principia». In January 1665, Newton took the degree of Bachelor of Arts but was later in that year forced to leave Cambridge owing to the plague. While the University was closed, he went to his native village and began to think about the fundamental principles of his theory of gravitation. It was there in 1666, that the well-known legend of Newton and the apple arose. Tradition holds that the idea of gravitation was suggested to Newton by the fall of an apple. But the earth's gravitation was an accepted scientific fact long before Newton's time; his genius lay in developing the law of universal gravitation.

Task 2. Make up disjunctive questions.

1.Newton’s life falls into three sections,…….?

2.In 1697 he was appointed Master of the Mint,……..?

3.In 1685 Newton incorporated his lectures on the laws of motion,….?

4.In 1665 Newton took the degree of Bachelor of Art,….?

3. Speak in details where belts are used and their types.

VARIANT 15

Task 1. Read and translate the text.

THE SHAPER

The planer has a reciprocating table which travels beneath a cross bar on which the tool heads are mounted. Normally one or two tool heads are mounted on the cross bar, but additional tools, generally for cutting vertical faces, may be mounted on the columns supporting the cross bar. The usual design comprises two vertical columns between which the table reciprocates. The cross bar is so mounted that it can slide vertically on these columns. All motions for feed or cut take place either by dropping the cross bar, moving the tool head across the cross bar, or lowering the tool holder mounted on the tool head. The first two of these motions are generally power or hand-operated but the last is often hand-operated only.

The table is normally operated by some form of rack-and-pinion or spiral drive.

Modern high-speed planers are now fully electrified.

Task 2. Give synonyms to the following words.

Normally, usual, motion, comprise, take place, hand-operated.

Task 3. Speak in details about the types of shapers.

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