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:




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II. -

( ) () . , (: . .) - (: , .) it, one, they. .

 

1. it.

It is evening. - . It's late. - .

It is said that he has come. - , .

, , , , it:

It was impossible to dissolve the substance in water. - .

It is clear that he will not come. - , .

 

2. it.

, , it is (was)... that (who, whom), , , :

Popov invented the radio in 1895.

, :

It was Popov who invented the radio in 1895. - 1895 .

It was the radio that Popov invented in 1895. - 1895 .

It was in 1895 that Popov invented the radio.- 1895 . .

. .

It was after we had defeated fascist Germany that we could complete rehabilitation of our ruined cities. - , , .

 

3. one, they.

, , one they. one , , they ( ).

- .

:

one must (one should)

one can :

One must be careful when handling mustard gas. - .

One can easily decompose mercuric oxide at high temperature.- .

They say the weather will be better tomorrow.- , .

8. , it, one, they:

1. It has long been known that metals can pass from a metallic to an earthy form. 2. It was in 1896 that natural radioactivity was discovered. 3. It is difficult to liberate oxygen from a compound as most of its compounds are very stable. 4. In atomic studies it has become the practice to express energies in electron-volt units. 5. It is the sun that steadily sends out a great amount of radiant energy. 6. It is the steam turbine that has replaced the old reciprocating engine. 7. On a physical map one can see seas, rivers and mountains. 8. The engine stopped; it was badly damaged. 9. A few years ago they had an exhibition of the Indian art in Leningrad. 10. One can still see Magellan's ship in Spain exhibited ashore in memory of the first journey around the world. 11. The coming winter, they say, will be extremely cold. 12. One could hardly expect such a turn of circumstances.

 

9. , it is... that (who, which) it is not until... that:

1. It is these special properties of sound that are the subject of the present chapter. 2. It was the Dutch physicist, Christian Huygens, who first offered an explanation for the phenomena. 3. It was not until about 1911 that a first really successful theory of atomic structure was suggested by Rutherford. 4. It was not until Einstein discovered the connection between gravitation and inertia that the mystery Newton could not understand was solved. 5. Radioactive phenomena occur within the nucleus, and it is here that mass and positive charge resides. 6. A solenoid carrying a current behaves just like a magnet. 7. It was the great French physicist Ampere who first showed this to be the case. 8. It is just energy which the atom thus yields up that is held to account for the radiation.

 



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