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англиский методичка 1к 2сем Баранова.doc
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Plant, its parts and their functions

Plants are highly important sources of food for man; they supply us with food, clothing and many other things as well.

Man's progress has been closely connected with the cultivation of plants, as in order to grow plants man had to settle down and to begin building homes.

Many plants are being grown and used for many purposes now and as scientists continue their work/new uses of plants will be found.

To get high yields of crops we must know, how a plant grows. To have a knowledge of plant growth it is necessary to study the principal parts of the plant and their functions.

Thus, to study the structure of the plant is the first task of any student of agriculture.

The principal parts of a plant are: 1) the root system, 2) sterns and leaves, 3) the reproductive part made up of flowers, fruits or seeds.

The roots grow downward into the soil and have two main functions—to absorb plant nutrients and water from the soil and to anchor the plant As to stems and leaves, they are usually above the ground. The food used in growth by green plants is manufactured in the leaves from the raw materials taken from the soil and air. This process is known as photo­synthesis.

To support the leaves and to connect them with the roots are the main functions of the stem.

A flower is the part of the plant where seeds are produced. Thus, to produce seeds the plant must have flowers.

A seed consists of an embryo a supply of food and one or more seed coat? surrounding the young plant and its food supply. All parts of a plant must be developed well and proportionally enough to function properly. If conditions for plant growth are bad, the plant will be too weak to develop its parts well.

Пояснения к тексту

tо settle down -осесть, перейти к оседлому образу жизни

a student of agriculture -человек, изучающий сельское хозяйство

reproductive part -часть, связанная с размножением, органы размножения

Words and word combination to be learnt:

absorb, v

погдащать

anchor, v

скреплять, закреплять

condition, n

условие

consist (of), v

состоять из

in order to

для того, чтобы

knowledge, n

знание

leaf (leaves), n

лист

made of

состоящий из

necessary, a

необходимый

photosynthesis, n

фотосинтез

plant nutrients

питательные вещества растения

produce,v

производить

properly, adv

должным образом

raw materials

сырье

root, n

корень

stem, n

стебель

supply, v

снабжать

supply, n

запас

support,v

поддерживать

surround, v

окружать