Vocabulary. 1. Transcribe the words:

1. Transcribe the words:

hypothetical, exploration, scientist, theoretician, calculus, trigonometry, imaginative, experience, gravity, satellite, resistance, gasoline, atomic

2. Match the words from the texts (1-5) with their synonyms (A-E):

	spherical	A	faraway
	obvious	B	ball-shaped
	imaginative	C	usual
	distant	D	creative
	conventional	E	evident

3. Match the words from the texts (1-10) with the definitions (A-J):

	gravity	A	a device used for storing direct current electricity
	theoretician	B	the section of an aircraft which contains the pilot, instruments and flight controls
	landing gear	C	a sudden good idea
	cockpit	D	the natural force by which objects are attracted to each other, especially that by which a large mass pulls a smaller one to it
	altitude	E	an aircraft with only one wing on each side
	inspiration	F	the pushing power of an aircraft engine which makes the plane move forward
	battery	G	the height of an object or place above sea level
	monoplane	H	an instrument that guides aircraft, spacecraft, or ships without needing human operation
	thrust	I	the extendable wheel and leg assembly usually mounted beneath the wings which, together with the nosewheel, enables it to land safely
	autopilot	J	a person who forms or studies the theory of a subject

4. Explain in English and translate the words and expressions into Russian:

verst, differential calculus, weightless, artificial Earth satellite, free space, zero-gravity, air resistance, heavens, interplanetary ships, liquid-fuelled rockers

5. Find in the texts the English equivalents for the following expressions:

(1) учёный-самоучка, (2) овладеть высшей математикой, (3) слуховой аппарат, 4) история не даёт нам ключа к разгадке, (5) погружённый в размышления, (6) реактивный межпланетный космический корабль, (7) перегрузка, (8) запускать ракету, (9) совершить мягкую посадку, (10) предсказывать, 11) далёкие космические путешествия, (12) многоступенчатая ракета, (13) замкнутый экологический цикл, (14) пополнить запасы воздуха и воды, (15) конструкция космического корабля