I．
1.The fact that she was able to send a message was a hint. But I had to be
cautious.
2.Both of the substances are soluble in water.
3.Machine parts of irregular shape can be washed very clean by ultra-sonic.
4.As he ran out, he forgot to have his shoes on.
5.The design aims at automatic operation, easy regulation, simple maintenance
and high productivity.
6.This wave-guide tube is chiefly characterized by its simplicity of structure.
7.The power station here supplies the alternating current to a lot of radio
factories.
8.I am a perfect stranger in electric arc welding.
9.Earthquakes are closely related to faulting.
10.It is demonstrated that gases are perfectly elastic.
11.Transistors are fairly recent development.
12.Below 4o c, water is in continuous expansion instead of continuous
contraction. Only when we study their properties can we make better use of the materials.
13.He dialed the wrong number.
14.The new mayor earned some appreciation by the courtesy of coming to visit
the city poor.
15.A helicopter is free to go almost anywhere.
II
1.The expansion of the steam in the cylinder causes some of the steam to
condense.
2.One of our ways for getting heat is burning fuels.
3.This computer is of high sensibility.
4.The steam turbine is less economical at cruising speed.
5.The electronic computer is chiefly characterized by accuracy and quick
computation.
6.In the early 1600’s, the Hollanders were great farmers.
7.Heating water does not change its chemical composition.
8.The flowing of current first in one direction and then in another makes an
alternating current.
9.They are quite content with the data obtained from the experiment.
10.If we were ignorant of the structure of the atom, it would be impossible for
us to study nuclear physics.
III.
1.The oil in the tank has been up.
2.Gases differ from solids in that the former have greater compressibility than
the latter.
3.The development of scientific research in China is characterized by the
integration of theory with practice.
4.After careful treatment the deaf have recovered their hearing.
5.More rooms are being built to accommodate. the sick.
6.The maiden voyage of the newly-built steamship was a success.
7.In science and engineering, it is of great importance to state the laws and
principles accurately.
8.The wide application of electronic computers affects tremendously the
development of science and technology.
9.They paid special attention to raising the quality of magnetron and
multicavity klystron.
10.We must make full use of existing technical equipment.
11.We have made a careful study of the properties of these chemical elements.
12.The power plant supplies the inhabitants sixty li about with electricity.
13.The buildings around are mostly of modern construction.
14.With the passage of time, my admiration for him grew more and more.
15.We are enemies of all wars, but above all of dynastic wars.
16.My audience varied from tens to thousands.
17.Independence observers have commented favorably on the achievement you
have made in this direction.
18.No wonder the sight of it should send the memories of quite a number of
people of the old generation back to 36 years ago.
19.There is a big increase in demanding for all kinds of consumer goods in
every part of our country.
20.Out of all the glorious tales written about the U.S. revolution for
independence from Britain the fact is hardly known that a black man was the first to die for American independence.
21.I buried my head under the miserable sheet and rug, and cried like a child.
22.The thief made a trembling confession of his wrongdoing.
23.The sailors swarmed into a laughing and cheering ring around the two men.
24.I enjoy the clean voluptuousness of the warm breeze on my skin and the cool
support of water.。