Comprehension task

I. Read the word combinations and translate them into Russian

heavier-than-air vehicles, nonrigid airships, a source of propulsion, three axes, to provide the thrust, to obtain lift, dynamic sophistication, primary distinction, lifting agent, internal structure, sufficient volume, power source, remotely piloted vehicle,

to be capable of soaring, reasonable distances, retractable auxiliary engines, radio-controlled, to launch altitude, high altitude, flying qualities, police patrol, have the capability, experienced pilot.

II. Make up the word combinations

nonrigid ambient internal sufficient to launch flight hang to provide aerodynamic aspect unpowered auxiliary primary

shape ratio craft distinction airships glider structure air altitude engine the thrust training volume

III. Fill in the missing words (ultralights, sophistication, thermals, radio-controlled, nonrigid)

1. Airships that do not have a rigid structure are called ….

2. Gliders lack the dynamic … of sailplanes.

3. The remotely piloted vehicle are … from the air or the ground.

4. Sailplanes use … to climb to higher altitude.

5. … are now used for training, police patrol, and other workю

IV. Find synonyms in the list of words

to glide, way, distinction, velocity, speed, to drift, aircraft, propulsion, to start, airplane, approach, velocity, division, to float, altitude, design, to suspend, speed, to glide, to launch, driving force, to soar, configuration, height.

V. Find antonyms in the list of words

internal, complicated, heavier than air, similarity, ground, to lack, sophistication, unmanned, above, main, flat, external, lighter than air, auxiliary, air, to have, simple, simplicity, uneven, manned, beneath, distinction.

VI. Agree or disagree with the following statements

1. Heavier than air aircraft are no longer in use.

2. Heavier than air aircraft can be manned or unmanned.

3. Helium is used in heavier than air craft.

4. Ultralights are used for training, police patrol and military purposes.

5. Hang glider is an example of manned aircraft.

VII. Match the questions with the answers

1. What do all lighter than air aircraft have in their structure?	а) It is remotely piloted vehicle.
2. How is the aircraft that can be controlled from air or ground called?	b) He is suspended beneath the wing.
3.Where is the pilot placed in hang gliders?	c) They have small engines.
4. Which aircraft is not used nowadays?	d) It is a dirigible.
5. What power source is used in ultralights?	e) They have a sufficient volume.