do
do , . , , , :
The above law does hold.
.
.
. - , actually, really, indeed, do .
I
, do:
1. These molecules are too small to be seen, even with
the microscope, but strong experimental evidence seems to
show that they do exist.
2. The formation of ozone during the electrolysis of water
does not change the weight of the gas collected at the positive pole but it does decrease the volume.
3. We were discussing so far what happens to a body
when forces do not act on it. Let us now consider what
happens when forces do act on it.
4. Though some substances (e. g. sand) seem to be very
nearly insoluble, water does dissolve most things to some
extent.
II
. do: , , -.
1. This field does not affect the forward motion of the
electrons but does act upon the transverse motion.
2. Not all metals react with acids, and when they do the
gas evolved is not always hydrogen.
3. Gold usually occurs in the natural state while iron does
not.
4. The individual electrons do not move even
approximately independent of the another as do, for example,
the planets in the solar system.
5. Copper does not combine with oxygen when cold, but
it does do so slowly when heated.
6. The beta-rays which do pass through the aluminium
do not ionize the gas as profusely as do the alpha-rays.
7. Most authorities agree that catalysts do in some manner
combine with the substance or substances upon which their
catalytic influence is exerted.
. , .
. .
1. Perhaps nowhere have been achieved better results as
in this field of science.
, , .
2. Not only does 22 act as an oxidizing agent but it
also acts as a reducing agent.
H2O2 , .
1. Present Past Indefinite, do, do, . .
|
|
|
not until , ( until ) , ( until ) :
Not until Dalton made his famous discovery did scientists realize the importance of this law.
, , .
2. not until :
The names of many Russian scientists were not known until the October Revolution.
.
.
. I, Continuous, II , . , :
1. Confirming this possibility is another fact.
.
2. Related to the chemical activity are many other effects.
.
3. Important for this method was the following point. .
. , so, neither nor.
1) so
-, -
, . so
,
:
was late and so was his friend.
, .
2) neither nor
.
neither nor () , ,
:
Nor should we forget the importance of this word. .
.
, :
not only... but (also) ...
hardly... when } ...
scarcely... when }
no sooner... than
only
never
nowhere
neither } ;
nor }
so ;
A. . ,
:
1. Nowhere can we see such rapid progress as in radio
engineering.
2. Not only does chlorine unite with gaseous hydrogen,
but it will sometimes take hydrogen from other elements.
3. Only upon the adsorption of larger amounts was the
sensitivity again lowered.
4. No sooner has the current started running in one
direction than back it comes again.
5. Of great significance, however, is the fact that a few
of particles are deflected through large angles.
6. Perhaps never was the making of an important invention
shared by so many persons distributed so widely over the
world.
. . :
7. Correlative with the conception of a system of planes
is that of a system of great circles.
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|
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8. Surrounding this nucleus are electrons, the actual
number depending upon the atom being considered.
9. Included in this table are currents calculated on the
supposition that the entire effect is due to ionization by
collision of negative ions only.
10. Belonging to this class are all elastomeric substances.
B. .
so, neither,
11. Lever J moves upwards, so does lever M.
12. Carbon dioxide does not burn, nor does it support
combustion.
13. The Moon having no atmosphere, there can be no
wind, neither can there be any noise, for sound is carried
by the air.
14. It is incorrect to say that an element is that which
cannot be broken up into anything simpler. Nor can the
electron be regarded as a chemical element.
15. The ancients had no knowledge of stellar distances,
neither was there then any means by which they could
determine them.
1)
,
as, though how
ever.
1. Hard as it is we must do this work.
, .
2. Late though it was the sun was still in the sky.
, .
3. However cold this winter is, the one of 1941 was still
colder.
, 1941 .
...
. may (might) :
Erroneous as these results may be, they are still valuable.
, - ( ) ;... - .
2) ,
,
ever.
may (might),
.
:
1. I am right whatever other people may say.
, .
2. Whoever else may object, I shall approve.
, (-) .
, :
as } ; ;
however } ; ... ; ;
though (although) }
whoever () ; ,
whatever () ; , ; -
() ; ,
wherever1 () , , ; -
()... ; ,
whenever () ; ,
