А) найдите герундиальные обороты и переведите предложения на язык 1. we know of newton's having developed principles of mechanics. 2. mankind is interested in atomic energy being used only for peaceful purposes. 3. we know of soviet metallurgical industry having made a great progress. 4. we speak about cupolas being used for melting cast iron. 5. great attention is paid to the metal being heated to the proper temperature. 6. that sand molds are the oldest method for producing metal castings is a well-known fact. 7. we speak about casting metals molding sands and refractories being the main foundry materials b) определите формы и функции герундия.переведите предложения на язык 1. melting may be done in cupolas, air furnaces,electric furnaces, etc. 2. some metals require treatment before being placed in the melting furnace. 3. carrying molten metal is usually períormed in crane ladles. 4. the most favourable characteristic of a sand casting is its retaining good strength at moderately elevated tempera- ture. 5. melting is very importan in the production of high-quality castings. 6. we know of electric furnaces being used for the production of high-grade castings. 7 a foundry can't operate without employing proper found ry materials
Almost all people are fond of travelling. It is very interesting to see new places, another towns and countries. People may travel either for pleasure or on business. There are various means of travelling. For me there is nothing like travel by air; it is more comfortable, more convenient and, of course, far quicker than any other means. There is none of the dust and dirt of a railway or car journey, none of the trouble of changing from train to steamer and then to another train.
With a train you have speed, comfort and pleasure combined. From the comfortable seat of a railway carriage you have a splendid view of the whole countryside. If you are hungry, you can have a meal in the dining-car; and if a journey is a long one you can have a wonderful bed in a sleeper.
Travelling by ship is also very popular now. It is very pleasant to feel the deck of the ship under the feet, to see the rise and fall of the waves, to feel the fresh sea wind blowing in the face and hear the cry of the seagulls.
Many people like to travel by car. It is interesting too, because you can see many sights in a short time, you can stop when and where you like, you do not have to buy tickets or carry your suitcases.
A very popular means of travelling is hiking. It is travelling on foot. Walking tours are very interesting. Hitch-hiking is a very popular method of travelling among young people. But it is not as popular in our country as abroad.
Объяснение:Вот
2. He is eating a delicious ice cream at the moment. He is not eating a delicious ice cream at the moment. Is he eating a delicious ice cream at the moment? Время: Present Continuous
3. My friends were in Kiev several times already. My friends were not in Kiev several times already. Время: Past Simple
4. She was going at the lectures in the University yesterday from 10 to 18. She was not going at the lectures in the University yesterday from 10 to 18. Was she going at the lectures in the University yesterday from 10 to 18? Время: Past Continuous