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Identify the type of Participle, define its function. Translate the sentences into Russian.
1. The roots growing in the soil have two main functions.
2. The food used in growth by green plants is manufactured in the leaves.
3. Plant nutrients absorbed by the roots are transferred to the other parts of the growing plant.
4. The food used in growth by green plants is manufactured in the leaves.
5. Varying greatly with the species leaves have different shape.
6. When grown, the farm crops remove nutrients from the soil.
7. Supplying man with food and clothing plants are very important in everyday life.
8. Improving the quality of crop plant breeders increase yields.
Answer the following questions.
1. What sources of food are most important for man?
2. Is the root system as important as stems and leaves?
3. What are the main functions of roots?
4. Where is the food necessary for the growth of the plant manufactured?
5. What do leaf veins serve as?
6. How do the shape and the position of leaves vary?
7. What is the main function of a leaf?
8. What is the function of a flower?
9. Where are seeds produced?
10. What does a seed consist of?
Make up the plan of the text.
Give the short summary of text A.
Get acquainted with text B and find in the text answers to the following questions.
1. What organism do plants include?
2. How many plant species has botany identified?
3. Where do green plants obtain their energy from?
4. Describe the process of photosynthesis.
5. What is chlorophyll?
6. What do the majority of plants require to grow successfully?
7. What is the growth of plants determined by?
Say what is the text about.
Text B
Plant
Plants are living organisms belonging to the kingdom Plantae. They include such organisms as trees, herbs, bushes, grasses, vines, ferns, mosses and algae. The scientific study of plants, known as botany, has identified about 350 000 species of plants. Green plants obtain most of their energy from sunlight via a process called photosynthesis.
About 350 000 species of plants, defined as seed plants, bryophytes, ferns exist currently. Some 287 655 species had been identified, of which 258 650 are flowering plant, 16 000 bryophytes, 11 000 ferns and 8 000 green algae.
Most of the solid material in plant is taken from the atmosphere. Through a process known as photosynthesis, most plants use the energy of sunlight to convert carbon dioxide from the atmosphere, plus water into simple sugars. Parasitic plants, on the other hand, use the resources of its host to grow. Chlorophyll, a green-colored, magnesium-containing pigment is essential to this process; it is generally present in plant leaves, and often in other plant parts as well. For the majority of plants to grow successfully they also require oxygen in the atmosphere and around their roots for respiration.
The genotype of a plant affects its growth. Growth is also determined by environmental factors, such as temperature, available light, and available nutrients in the soil.
Any change in the availability of these external conditions for space, water, light and nutrients. Simple plants like algae may have short life spans as individuals, but their populations are commonly seasonal.
Human cultivation of plants of agriculture, which is the bases of human civilization. Much of human nutrition depends on land plants, either directly or indirectly.
Notes:
lifespan– продолжительностьжизни
bryophytes – бриофиты
ferns – папоротники
mosses– мхи
host – растение-хозяин
17. Say it in English:
1)what is the first paragraph of the text about?
2)describe the process of photosynthesis.
3)how many species of plants has botany identified?
4)what is chlorophyll? In what paragraph of the text you can find this information.
5)what organisms belong to the kingdom Plantae. What do they include?
6)what plants have short life span?
7)what do plants compete with other plants for?