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3. Now try to make the same words tree, but this time, do not look at the tree you filled in or the list of the words.

4. Give the English equivalents for the following.

- ветер; штиль; боковой ветер; встречный ветер; попутный ветер; порыв ветра; сильный ветер; слабый ветер; сдвиг ветра;

- турбулентность; слабая турбулентность; сильная турбулентность; умеренная турбулентность; турбулентность ясного неба;

- дождь; сильный дождь; небольшой дождь; переохлажденный дождь; морось; ливень; сильный ливень; гроза; снег с дождем; слякоть; мокрый снег; град; мороз; обледенение; снежные заносы; сугробы; снежные борозды;

- дымка; мгла; туман; плотный туман; переохлажденный туман; туман местами; рассеивание тумана;

- стоячая вода; лужи воды; ледяные лужи; затопленная водой ВПП; мокрая ВПП; влажная ВПП; водяной смерч; торнадо; тайфун; ураган;

- облака; разорванные облака; нижняя граница облачности; грозовые облака; грозовые образования; перистые облака.

5. Match a line in a with a line in b to define the words in italics. Use your dictionary if you want.

a)

A

B

A rainbow is

wind blowing from behind a travelling aircraft.

Drift is

it is not windy.

Snowdrifts are

deviation by an aircraft from a set course due to winds

Tailwind is

violent or uneven movement of air.

Crosswind is

wind blowing from directly in front.

Headwind is

an arch containing the colours of the spectrum, formed in the sky, when the sun shines through rain or spray.

When it is calm

wind blowing across the direction in which aircraft are travelling

Turbulence is

deep banks of snow heaped up by the wind

b)

A

B

Fog is

thin mist.

Mist is

it is not completely dry, slightly wet.

Haze is

falling snow or hail mixed with rain.

Frost is

a cloud of minute drops of water vapour hanging just above the ground, less thick than fog but still difficult to see through.

When the runway is damp

a thick cloud of tiny drops of water close to or just above land or sea; thick mist.

When the runway is wet

it is covered with soft, usually dirty, melting snow.

Sleet is

it is covered, soaked or moistened with water.

When there is slush on the runway

weather condition in which temperature falls below freezing point.

c)

A

B

Snow is

a cloud formed of rounded masses heaped on a flat base.

Rain is

frozen water that falls to the ground from the sky in soft white flakes.

Sandstorm is

a cloud level.

Drizzle is

a storm in a desert in which sand is blown through the air by the wind.

Cirrus is

it is covered with cloud.

Cumulus is

a type of light wispy cloud, high in the sky.

When the sky is overcast,

condensed moisture of the atmosphere falling as separate drops.

Ceiling is

fine misty rain.

d)

A

B

Hail is

loud noise that follows a flash of lightning.

A hailstone is

frozen rain falling in a shower.

Tornado is

a funnel-shaped column of water between the sea and the clouds, formed when a whirlwind draws up a whirling mass of water.

Waterspout is

a storm with a violent wind, especially a West Indian cyclone.

Thunder is

a flash of brilliant light in the sky produced by natural electricity passing between clouds or from clouds to the ground, usually followed by thunder.

Lightning is

a small ball of hail.

Hurricane is

a violent tropical hurricane that occurs in the western Pacific.

Typhoon is

violent and destructive whirlwind.

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