Контрольное задание №1

IV. Перепишите и письменно переведите на русский язык 1, 3 и 4-й абзацы.
Пояснения к тексту
to give an impetus — значительно ускорить
reinforced concrete — железобетон
C.A.H.I. - ЦАГИ
of the front rank — выдающийся
to take the lead — сделать что-либо первым
MSTISLAV KELDYSH (1911-1978)

1. 
   Mstislav Keldysh was a distinguished physicist and mathematician. He was recognized in the Soviet Union as a leading authority on space mathematics and aerodynamics, as a brilliant scientific organizer. As head of a research institute during the 1940's he took a leading role in giving an impetus' to Soviet rocket development.
   
2. 
   Mstislav Vsevolodovich Keldysh was born into an intellectually prominent family on February 10, 1911 in Riga. His father, V. M. Keldysh, a civil engineer, is noted for his work in the development of reinforced concrete.
   
3. 
   Following his graduation from the Moscow University in 1933 M. Keldysh joined the staff of the Central-Aero-Hydrodynamics Research Institute (C.A.H.I.), the major aircraft development centre in the Soviet Union. During the early years of the 1940's he concentrated on studies in the field of aerohydrodynamics. His studies provided the foundation on which the Soviet Union built its rocket and missile programs achieving success with the satellite Sputnik in December, 1957.
   
4. 
   M. Keldysh is also regarded as a mathematician of the front rank4. Many mathematical techniques that he devised have proved their practical significance when applied to problems in physics and engineering.
   
5. 
   In a more practical area M. Keldysh took the lead5 in introducing into the Soviet Union the concepts of computer mathematics, computer engineering, and some aspects of automatic control.
   

6. M. Keldysh was President of Soviet Academy of Sciences from 1961 to 1975. He died on June 24, 1978. M. Keldysh played fundamental roles in development of country's nuclear, computer and aerospace technologies.