номер 4, страница 45 - гдз по английскому языку 7 класс рабочая тетрадь Hardy-Gould, Mellersh

4 Read the text again. Then answer the questions.

1 What things cause mountains to change? and

2 What do destructive waves carry? and

3 What happens to the materials produced by the destructive waves?

4 Do constructive waves carry material a long way?

5 What do constructive waves help to make? and

6 Which type of rock erodes faster, soft or hard rock?

7 Where do you often find headlands or bays?

Changing landscapes

Part 1: Erosion and deposition

We think of a mountain as something that never changes. And yet it is constantly changing. The wind, the cold and water are cutting and shaping it every day. All around us the land is slowly changing. Erosion is cutting away the land in one place but deposition is building new land in a different place.

The process of marine erosion and deposition happens because of the action of the sea on rocks. Destructive waves are strong waves that attack the coast. They cause erosion and they transport material. The waves throw sand and pebbles at the cliffs. This breaks up the land into more rocks, pebbles and sand. Then the sea carries this material away. Constructive waves are weaker and can't carry the material far. They deposit the material in a different place. In this way bars and beaches are formed.

Part 2: Headlands and bays

Bands of soft rock erode more quickly than bands of hard rock. This leaves sections of land going out into the sea. When there are bands of hard rock and soft rock, we often find headlands and bays.

Part 3: Caves, arches and stacks

When the sea attacks the side of the headland, cracks appear in the cliff. The cracks get bigger and make a cave. When the cave goes through the headland, we have an arch. When the top of the arch falls, we have a stack.

4.1 Что заставляет горы меняться?

Ответ: The wind, the cold and water. / Ветер, холод и вода.

4.2 Что несут разрушительные волны?

Ответ: Sand and pebbles. / Песок и гальку.

4.3 Что происходит с материалами, созданными разрушительными волнами?

Ответ: The sea carries the material away. / Море уносит этот материал.

4.4 Переносят ли созидательные волны материал на большое расстояние?

Ответ: No, they can't carry the material far. / Нет, они не могут переносить материал далеко.

4.5 Что помогают создавать созидательные волны?

Ответ: Bars and beaches. / Косы и пляжи.

4.6 Какой тип породы разрушается быстрее, мягкая или твердая порода?

Ответ: Soft rock. / Мягкая порода.

4.7 Где часто можно встретить мысы или заливы?

Ответ: Where there are bands of hard rock and soft rock. / Там, где есть полосы твердых и мягких пород.