с контрольной по английскому языку. 1. Прочитайте текст и сформулируйте основную мысль текста.
Natural vegetation of North America
Compared with the leaf-bearing forests of Europe, those of North America are richer. There are more kinds of trees. This is especially noticeable in autumn, when the leaves are bright and many-coloured. The main trees are oak and chestnut, but of a different kind than in Europe. The live oak is often two times as wide as it is high. Its oval leaves also are unlike those of most of the northern oaks, and they can stay green the whole year. The tree was good for shipbuilding and the greater part of the oak forests was thoughtlessly destroyed. Some of the old oaks are still found in the southern lowlands. There are trees in North America that one cannot find in European forests: tulip-trees and sugar maple.
2. Раскройте скобки, употребив глаголы в нужной видо-временной форме.
1. Australia (to know) to the Portuguese as far back as the sixteenth century. 2. Some mechanical fruit-pickers that (to use) to harvest1 tree fruits, such as plums, cher¬ries, and apricots shake the fruit tree, causing the fruit to fall on to a raised catching frame that (to surround) the tree. 3. Fertilizer can (to distribute) during the winter or shortly before seeding time. 4. Modern tractor ploughs usually (to equip) with two or more ploughshares so that a wide area of ground can (to break) at a single sweep.
3. Преобразуйте предложения из действительного залога в страдательный. Переведите.
1. Introducing an or¬ganism controls certain pests. 2. We know about a thousand minerals. 3. The foreign tourists often visit our city. 4. He collected all the necessary information day by day.
