6. Speak about basic task and applications of radio engineering.
7. Put the verbs in brackets into the correct form according to the meaning (using Indefinite, Continuous, Perfect Tenses):
a) The electric current (to play)____________an important role in our everyday life.
b) The professor (to mention)___________the name of Volta at the last lecture.
c) The students (to use)___________these radio devices in the next laboratory work.
d) Electronics (to become)__________increasingly important in all branches of production nowadays.
e) During the work on his discovery the scientist observed that a small electrical current was flowing. He rightly concluded that some electrons (to move)_________through the vacuum.
f) Very soon the day (to come)_________when spaceships will be flying to the planets in the solar system and their satellites.
g) Before 1932, two fundamental particles (to become)________well established as a result of numerous experiments. These were the electron and proton.
h) The laboratory assistant just (to finish)_________this work.
i) The technician (to record)_________the data before you came.
j) The apparatus (to work)_________when you arrive.
k) This radio station (to transmit)_________ its programs since ninetieth.
l) When the professor arrived, the engineers (to carry out)_________ an experiment for two hours.
m) By next week they (to use)________this new equipment for two months.
n) The circle (to become)________an ellipse after you (to compress)
_________it.
o) We (to use)_________this substance in the experiment if it (to have)
_________the necessary properties.
p) Commutators (to require)________more attention than any other part of the machine.
q) I (to work)_________at a large machine-building plant next year.
r) The mechanical engineer is busy, he (to replace)_____________the broken part of the engine.
s) Yesterday at five o'clock I (to work)_________at my report.
t) The strength of metal (to decrease)_________as the temperature increased.
u) The devices (to work)________when you come.
v) After I (to finish)________ the inspection of the new engine I spoke to the engineer.
w) He (to repair)________the engine before you come.
x) Don't you think that it is the most dangerous experiment we ever (to make)_________.
y) We (to use)_________the production of heat by an electric current more and more.
8. Choose the appropriate form of the verb:
a) Radio engineering (penetrates, will penetrate, has penetrated) into the national economy, science, industry.
b) One of the most important applications of radio engineering (involve, involves, involved) long-distance communication.
c) Radio engineering equipment (provide, will provide, provides) for stable round-the-clock communication with marine vessels, aircraft and spaceships.
d) Radio engineering systems (enables, will enable, enable) us to effect interplanetary communication.
e) New sciences (have been born, has been born, will be born) such as radio physics, radio astronomy, etc.
f) Radio techniques and methods (is widely used, was widely used, are widely used) in experimental physics.
g) The extensive use of radio methods (gives, have given, has given) rise both to radio engineering and electronics.
h) Radio electronic equipment (uses, will use, is widely used) in medicine.
i) Cybernetic systems (were playing, play, will play) a decisive part in automation.
j) Television (will cover, has covered, covers) steadily expanding regions in many parts of the globe.
Lesson Two