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II.

I. So be it!   There would be no progress in science without observations .  
II.   1. : It is necessary important essential of importance likely unlikely   It is important that safety measures be (should be) taken.   It is necessary that a personal computer meet(should meet) an individuals computing needs.   , .   , .
2. : advise, demand, desire, insist, order, propose, request, require, suggest, suppose, want, wish He demanded that the chips be (should be) reprogrammable for any functions.     They suggested that a special code be(should be) used for processing the data.   We wish the TV-camera were simpler in design. , .   , .   , .
3. , : so that, lest, in order that Clearly identify the users needs lest your software cause (should cause) confusion while running it.   Install a modem in order that the system could be connected by telephone lines to a mainframe computer. , .   , .
4. - : as if, as though. The man repaired our TV-set as if he were an expert in telemechanics. , .
5. : though, although, even if, even though, whatever, however .. Whatever handheld device you should use, it will let you work or entertain yourself while on the move.   Even though a power interruption were short, it would cause loss of all the data. , , .     , .
6. (II III ) : if, unless, in case, provided, provided that, providing, providing that, on condition, on condition that, even though, suppose, supposing If a programmer used assembly language he would have to pay careful attention to how the machine works.     If he had used this formula, he would not have made this mistake , .   ,

 

III.

I . .

, . ( ).

Present Indefinite Future Indefenite
As soon as we receive the necessary data,   ,   we shall inform you.     .
II . . ( ), . ( ) Past Indefinite ____________________ If there were no atmosphere,   , Should (would, could, might) + Indefinite Infinitive   ____________________   the surface of the Earth would become too hot by day and too cold by night     .

III . .

 

, . ( , II ).

Past Perfect Should (would, could, might) + Perfect Infinitive
If he had worked hard last term,   ,   If he had had more time yesterday,   ,   he would have passed his exam.     .     he might have done this work.   .

 



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