29. А) Прочитайте следующие сочетания слов с причастием прошедшего времени в функции правого определения и переведите их.

Образец: The equipment used is ...— используемое оборудование является ...

1. New sources of fuel described included ....

2. Modern colliery visited used ....

3. Economic achievements written about are ... .

4. Average coal output of the quarry designed will reach ....

b) Прочитайте следующие предложения. Найдите в каждом из них группу «подлежащее-сказуемое». Определите функции слов с суффиксом -ed:

l. The prospecting party provided with new equipment planned to begin its work in spring.

2. The prospecting party provided new data on useful minerals discovered in the region.

З. Тhе prospecting party is provided with new equipment.

4. The rocks described represented the oldest portion of the Earth's crust.

30. Заполните пропуски в предложениях, употребив данный в скобках глагол в соответствующем времени и залоге:

1. Scientists and engineers ... computers in their work. Computers ... in different fields of science and engineering. (to apply)

2. Materials for sedimentary rocks ... fragments of pre-existing rocks. Conglomerate, sandstone and shale ... into the group of sedi­mentary rocks. (to include)

3. Geophysicists ... the changes which take place deep in the Earth. Many of these changes develop at such a slow rate that they ... only with the help of modern instruments and computers. (to observe)

4. Water greatly ... the decomposition of rocks. It is quite obvious that weathering ... by the action of water. (to facilitate)

31. Определите, какие функции в предложении выполняют совпадающие по форме выделенные слова. Переведите предложения:

1. The term "prospecting" includes the whole range of geologi­cal work directed to discovering deposits of valuable minerals. The Moscow Mining Academy directed the activities of the Academy's research institutions.

2. Limestones occupied vast areas of the Earth's surface. It is quite obvious that the regions occupied by limestones have been covered by seas.

3. Modern deposits of Kamchatka volcanoes investigated by Russian geologists show that volcanism is active there. The Institute of Volcanology of the Siberian 4. Department of the Academy of Sciences investigated friable (рыхлый) volcanic deposits of Kamchatka.

5. The clayey mass obtained by the decomposition of orthoclase is white and is called kaolin. Chemists obtained phosphorus from phosphorite.

32. Переведите предложения, обращая внимание на перевод причастия прошедшего времени.

Образец 1: The mining method used depends on many factors. → Используемый метод разработ­ки зависит от многих факторов.

1. The problems discussed are connected with the investigations of the Earth's crust depths.

2. Metamorphic rocks described represent the oldest part of the Earth's crust.

3. The process of metamorphism mentioned above creates such minerals as tremolite, sillimanite and others which are uncommon in sedimentary and igneous rocks.

4. In all the mines visited automated computerised control sys­tems were used.

5. A new system of planning employed gives an opportunity of supplying correct information quickly which is essential for management control of modern mines.

Образец 2: When burnt, coal produced heat. - При сжигании уголь выделяет тепло.

1. If disturbed, rocks cleave easily into separate plates.

2. When needed the additional experiments are carried out.

3. When subjected to pressure, heat and chemically active fluids, various rocks in the Earth's crust are transformed into metamorphic rocks.