Exercise 1. Переведите предложения на русский язык. Подчеркните сказуемое, определите время и залог:

1. Silicon is used for manufacturing chips. 2. Einstein presented his theory of relativity in 1905.

3. Scientists make researches in all fields of science. 4. Our company bought computers and printers. 5. The properties of these systems were spoken about. 6. The results of the experiment will be published in a month.7. The time of the operation was reduced.8. This palmtop is made in Japan. 9. Two articles were written by this scientist last year. 10. We use this instrument for measuring pressure.11. This device has just been tested. 12. A new stadium is being constructed in this area now. 13. The text had been translated by 5 p.m. yesterday. 14. Electrical devices are widely used in industry and at home. 15. This robot has already been used for industrial purposes.

Exercise 2. Перепишите предложения из действительного залога в страдательный, используя Present, Past and Future Simple Passive:

Example: We repaired the car yesterday. - The car was repaired yesterday.

1. They used this fuel for different engines. 2. He will publish the results of the experiment in a month. 3. They will improve the car design. 4. The new device reduced the time of the operation.

5. I will check the device tomorrow. 6. This scientist wrote two articles last year. 7. Yesterday they demonstrated a new device. 8. We’ll propose a new model. 9. We use this instrument for measuring pressure. 10. We check this device once a week.

Yuri gagarin (yuri gagarin) (1934-1968) — soviet cosmonaut, pilot-cosmonaut of the ussr (1961), colonel, hero of the soviet union (1961). made the world's first space flight in the spaceship "vostok" with a duration of 1 hour 48 minutes. zodiac sign — pisces. yuri gagarin was born march 9, 1934 in gzhatsk (now gagarin) gzhatsk (now gagarin) district, smolensk region. his mother, anna timofeyevna and father, alexei ivanovich, was an ordinary rural workers from the village of klushino of gzhatsk district. after the german occupation, the gagarins in 1945 moved from klushino to the city of gzhatsk. after high school, yuri 30 september 1949, received in lyubertsy vocational school 10, from which he graduated in june 1951 with a degree molder-caster. 1951 - the school for working youth in the city of lyubertsy (moscow oblast). in august, gagarin entered saratov industrial technical school. 25 october 1954 and began to study at the saratov aeroclub. in 1955 he graduated from saratov industrial technical school, and 10 october of the same year the saratov aeroclub. from 1955 gagarin in the soviet army. since 1957 before enrolling in the cosmonaut served as a fighter pilot in fighter aviation regiment of the northern fleet. 27 october 1957 yuri gagarin married valentina ivanovna goryacheva, who was his faithful companion for many years. their family grew by two daughters - lena (born 10 april 1959) and galina (born march 7, 1961). on december 26, he called on the new place of assignment: fighter aviation regiment of the northern fleet. learning about the recruitment of candidates for trials of new flight technology, yuri gagarin 9 december 1959 writes a report with a request to enroll him in a group and after calling 18 dec goes to moscow, the central scientific research aviation hospital for examination health[en]. on march 3, 1960 lieutenant general kamanin presented to the chief of the air force chief marshal of aviation vershinin a group of selected pilots of cosmonaut candidates. 11 mar yuri gagarin along with his family went to the new place of work, and on march 25 began regular classes at the cosmonaut training program. 12 april 1961 for the first time in the history of mankind, yuri gagarin flew into space on the spaceship "vostok". gagarin orbited the globe in one hour and 48 minutes and returned safely to earth. this flight opened up before mankind a new era of space exploration. participated in the teaching and training of crews of astronauts. for this feat he was awarded the title hero of the soviet union, the day of gagarin's flight into space was declared a holiday - cosmonautics day, starting from april 12, 1962. on may 23, 1961 - the commander of the cosmonaut corps. got the qualification of "military pilot 1st class".