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V. Use the words in brackets to form a word that fits in the space.

  1. Temperature changes and . . . . make the snow denser. (compact)

  2. The . . . . of an alpine glacier depends on both temperature and precipitation. (grow)

  3. Only a few meters of ice freeze on the . . . . warm sea surface. (relative)

  4. . . . . resistance with the valley walls slows movement along the edges. (friction)

  5. An ice-sheet, or . . . . glacier, covers an area of 50.000 square kilometers or more. (continent)

  6. The terminus of a tidewater glacier is often a steep ice cliff dropping . . . . into the sea. (abrupt)

VI. Translate the sentences using Participle I and Absolute Participle Construction.

  1. Океаническая кора растекается наружу, покрывая разъединяющиеся тектонические плиты.

  2. Повышающаяся температура – важный фактор в образовании магмы в астеносфере.

  3. Три фактора влияют на образование магмы, причем самым важным является добавление воды.

VII. Put the questions to which the following sentences are the answers.

  1. Alpine glaciers exist on every continent – in the Arctic and Antarctica.

  2. Yes, it is. A glacier is a massive, moving mass of compacted snow and ice.

  3. Glacial striations are used to map the flow directions of glaciers.

VIII. Read the text.

Glaciers have advanced and retreated at least five times during the past 2 million years. In a relatively short time – perhaps only a few thousand years – the Earth’s climate cooled by a few degrees. As winter snow failed to melt in summer, the polar ice caps grew and spread into lower latitudes. At the same time, glaciers formed near the summits of high mountains, even near the equator. They flowed down mountain valleys into nearby lowlands. When the glaciers reached their maximum size 18.000 years ago, they covered one third of the Earth’s continents. About 15.000 years ago, Earth’s climate warmed again and the glaciers melted rapidly. Although 18.000 years is a long time when compared with a single human lifetime, it is a blink of an eye in geological time. In fact, humans lived through the most recent glaciation. In southwestern France and northern Spain humans developed sophisticated spearheads and carved body ornaments between 40.000 and 30.000 years ago. People first began experimenting with agriculture about 10.000 years ago.

Are the following statements true or false?

  1. During the past 2 million years glaciers have not moved.

  2. In a relatively short time the Earth’s climate has changed greatly.

  3. About 15.000 years ago, glaciers melted rapidly, because Earth’s climate warmed.

IX. Translate from Russian into English.

  1. Альпийские ледники образуются в горных регионах.

  2. Когда ледник отступает, лед сползает вниз по склону.

  3. Рост альпийских ледников зависит как от температуры, так и от атмосферных осадков.

Test VII unit VII streams and lakes

I. Give Russian equivalents.

Stream; tributary; channel; flood plain; steepness of a stream; discharge; suspended load; competence of a stream; current velocity; fan; basal level; oxbow lake; rejuvinated stream; stream bed; a stream feeding a delta.

II Give English equivalents.

Наводнение; дно канала; емкость потока; разветвленная река; аллювиальный конус выноса; боковая эрозия; стоячая вода; ложе потока; пересыхающая река; вниз по течению; соленая морская вода; впадать в море или озеро; полноводная река (поток).

III. Match the words from “a” and “b” to make word combinations.

  1. tumbling; water; erosion and sediment; a shallow; the amount of; stream; to be choked with; the downstream; a braided; lateral;

  2. velocity; direction; erosion; gradient; over boulders; stream; flowing in channel; water; transport; boulders.

IV. Complete the sentences.

  1. All water flowing in a channel is called . . . .

  2. During a flood, a stream overflows its banks and spreads over adjacent land called . . . .

  3. . . . . is the amount of water flowing down a stream.

  4. . . . . of a stream is a measure of the largest particle it can carry.

  5. . . . . is a large, inland body of standing water that occupies a depression in the land surface.

(competence; discharge; a lake; stream; a flow plain)

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