Описание презентации по отдельным слайдам:
We say that plants have life because they grow, If you put a bean into the ground, it will soon become a small bean plant.
We know that plants take in food. They take in earth-food by their roots and air-food by their leaves. And then they change it into branches, leaves, flowers and fruit.
Grass and leaves use the light of the sun and something from the air, they get the water from the earth, and so they work out a kind of green material inside themselves. We call it chlorophyll.
COTTON The cotton plant grows in all warm countries, It has dark green leaves and yellow or pink blossoms. There is white down around the seeds. We call it cotton.
There people make it into cloth, thread, rope and many other useful things.
The seeds of the plant are also useful. There is oil in them, The stalks of the plant are useful too, They are made into paper.
Wheat grows 'in the field. When wheat springs out of the ground, It looks like grass. It wants rain, wind, and warm sunshine to help it grow and get ripe. WHEAT
When wheat is yellow, it is ripe. Than men come and cut it down, The seeds of wheat are good to eat. Men carry them to a mill, and there the seeds are made into flour.
Sugar comes from sugar cane, It grows in warm countries. It looks like corn. It is from ten to twelve high. Sugar is made from the juice of the sugar cane. Sugar
People cut the stalks of the sugar cane, take them to a mill and put them into machines. They press the juice out of the stalks of the sugar cane.
TEA Tea is the leaves of a plant which grows in China, Japan, India and some other warm countries. It grows in Russia too. We call it the tea plant. The leaves of the tea plant are small and of dark green colour.
When the plants are three years old, the leaves are gathered. They are gathered twice a year, in spring and in autumn. After that people have to do much work before the tea is ready for use. They cut the tea leaves and dry them.
COFFEE The coffee-tree grows in hot countries. Its flowers are small and white. They last only a day or two and then fall of. In their place there comes the fruit. It is a red berry.
FLAX It grows in nearly every country in Europe, as well as in Egypt and India. The plant grows to the height of two feet and has blue flowers. When the flowers fall off, a pod full of small seeds is left.
From the seeds people get oil which is used in mixing paint.
Cocoa tree grows in hot countries. The seeds are in pods about five inches long, somewhat like а cucumber. COCOA
Each pod has got from forty to fifty seeds or beans. People dry the seeds and grind them.
People make chocolate. It is the ground cocoa seeds made into a paste with sugar.
Thank you for your attention
Краткое описание документа:
Презентация "Полезные растения" была подготовлена и показана в рамках круглого стола, который проходил в период проведения недели иностранных языков. В ней рассказывается о свойствах и применении таких растений как хлопок, рожь, лен, какао, сахарный тросник,чай.Этой резентацией был открыт круглый стол. а далее учащиеся представляли свои презентации. Самые интерессные были по темам "Изчезающие растения Ставропольского края" . " Балл цветов" Эти презентации можно использовать для внеклассной работы по предмету, а так же как дополнительный материал при прохождении темы "Окружающая среда"