Соедините по смыслу две части высказывания в одно целое. Сравните с информацией текста

The more active the chemical weathering is, … The less active the chemical weathering is, … The older the soil material is, …   The younger the soil material, …

… the higher the proportion of minerals resistant to alteration in soils … the lower the proportion of minerals resistant to alteration in soils … the lower the proportion of readily altered minerals … the higher the proportion of readily altered minerals

1 –	3 –
2 –	4 –

Ex.6.

Определите, в каких случаях “do” является заместителем смыслового глагола, а в каких — его усилителем.

1. Severe earthquakes do cause a great deal of damage.
2. Soils do contain a great variety of minerals.
3. We know that the rocks just below the earth’s surface do vary considerably from place to place.
4. Soils usually contain a greater variety of minerals than rocks do.
5. Some kinds of earth’s movements do raise large parts of the land.
6. Soils developed in climatic zones where chemical weathering is intense normally contain a lower proportion of minerals resistant to alteration than do soils developed under conditions of less intensive weathering.

Ex.7.

Переведите на русский язык, используя различные значения глагола «to do».

1. Ряд факторов действительно оказывает влияние на образование почв.
2. Возраст и зрелость почв в самом деле оказывают влияние на характер минерального состава почв.
3. Обычно почвы содержат большее разнообразие минералов, чем (это делают) породы.
4. Физическое и химическое выветривание действительно приводят к уменьшению размеров частиц в процессе образования почв.

Ex.8.

Прочитайте текст и дайте определения следующим терминам: soil; subsoil; mantle rock; bedrock.

The lithosphere nearly every where is covered with vegetation beneath which there are loose materials consisting of sand, clay, and other rock particles mixed with organic matter. This thin cover of the earth’s surface is the soil. It passes down into the subsoil which is made up of rock fragments. The subsoil contains only a little organic matter. The soil and subsoil constitute the mantle rock which is underlain by solid rock which is called bedrock.

Most geologists use the word “soil” to distinguish loose fragmental material in the crust of the earth from solid rock.

The soil is ______.

The subsoil is ______.

The mantle rock is ______.

The bedrock is ______.

Ex.9.