Задание на дом № 2

XI.Перечислите все извест;иге вам типы почв (по-английски).

ХП. Употребите вместо пропусков слова из лексического минимума к тексту А в соответствующей форме (устно).

1. A. well-planned ... system is ... important in growing cotton, as excessive moisture usually results in rotting

of seeds. 2. Sorghum has -keen found ..^ well to deep plowing applications of manure, and phosphatic fertilizers.

3. Sowing alfalfa with a ... ... Sometimes reduces the

stand because of competition of the two for moisture,

light and soil nutrients. 4. Timothy tolerates soil acidity

better than red clover, but ... is essential on soils with-

pH 4.5-5. 5. The acreage under sorghum in the USSR is

.not very large, but it is believed to be expanded in arid

and ... regions. 6. If cutting grass for hay is delayed

too long, it is likely to be Coarse and less ... .

7. Soils being well supplied with calcium, phosphorus and

potassium, alfalfa ... better andyields more.

ХШ. Переведите следующие предложения на английский язык (письменно);

») I. Люцерна имеет стержневую корневую систему, которая проникает на большую глубину. 2. Люцерна должна скаши­ваться в правильное время. 3. .Люцерну используют для различных целей.

4. Люцерна - многолетнее растение и она хорошо развивается при большом разнообразии клима­тических условий. 5. Известкование необходимо, если почва кислая, 6. Почти все почвы подходят для выращива­ния люцерны, за исключением слишком кислых. 7. Время посева зависит от района. 8. Люцерна часто высевается

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с сопутствующей культурой;

б) I. Большое количество люцерны идет на сено. 2. Определяя время скашивания люцерны на сено, необходимо принимать во внимание: урожай, качество сена к влияние скашивания на травостой. 3. Скосив сено рано, мы получим облиственное сено с высоким содержанием протеина. 4. Будучи хорошей покровной культурой, люцерна часто увеличивает урожайность последующей культуры. 5. Люцерна хорошо рас­тет при широком разнообразии климатических условий, но сухой жаркий климат особенно благоприятен. 6. Люцерна очень чувствительна к кислым почвам и она лучше реагиру­ет на известкование, чем другие бобовые. 7. Никакие дру­гие фуражные культуры не используются так разнообразно, как люцерна. 8. Люцерна является засухоустойчивым расте­нием благодаря тому, что ее стержневой корень и даже бо­ковые корни проникают на большую глубину.

XIV.Отвеете на вопрос (устно):

What crop should alfalfa precede in the rotation?

XV.Выполните лабораторную работу \> 2.

Аудсторная работа

XVI. Проверка домашнего задания.

ХVII. Ответьте на следующие вопросы к тексту А.

1. What does liming result in?

2. Does alfalfa have a fibrous root system?

3. How is alfalfa used?

4. When should alfalfa be cut for hay?

5. Under what conditions is alfalfa seeded in -early spring?

6. Why shouldn't alfalfa be cut too early?

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7. What climatic conditions axe best for alfalfa growth?

8. Why are deep soils so important for alfalfa?

9.What seedbed does alfalfa need?

10. Can alfalfa be 50 inches high?

ХVIII. Прочтите текст В, не пользуясь словарем, и озаглавьте его. Догадайтесь о значении выделеноого слова.

Text В

Red clover is the most widely grown and the most im­portant of the true clovers. Its widespread use is due to the following: (a) it produces a high yield of good quali­ty hay: (b) it is an excellent source of pasturage: (c) it fits (подходит) into most rotations well: (d) it is valuable for soil improvement.

This legume is best adapted to fertile, well-drained silt and clay loam types of sril that are relatively high in the content of organic matter. It does best when mois-turo ie abundant, and rather poorly on soils with a low water-holding capacity. In some years it may be injured by winterkilling when grown on poorly drained soils.

Although red clover does best in a cool, moist, cli­mate, it is not injured to any considerable extent by hoi weather, provided sufficient moisture is available. It tolerates soil acidity better than alfalfa, but grows, bettor on properly limed soil. In addition to lime, the soil should contain sufficient amunts of available phos­phorus and potassium to support a good growth of red clo­ver. Generally, red clover is easier to grow than alfalfa.

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Because of its biennial habit, red clover in mainly used in short rotations. An example of a common three year rotation is the one that includes corn or some other cul­tivated crop, small grain and red clover or red clover plus timothy. Red clover is beneficial to com in such a rotation, as it adds considerable organic matter and nitro­gen to the soil.

XIX. Определите, какие из следующих утверждений соответствуют содержанию текста В.

1. Corn grows better when it follows red clover.

2. Red clover is as sensitive to soil acidity as alfalfa.

3. Available potassium and phosphorus are necessary for profitable yields of red clover.

4. Red clover is mainly used for soil improvement.

5. If poorly drained, soils must not be used for growing red clover.

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LESSONS 21

Грамматика: функции инфинитива к инфини-

тивные конструкции (повторение).

Задание на дом №I.

I. Из следующих слов выпишите:

а) глаголы, которкё могу? сочетаться со словом soil ;

б) прилагательные, характеризующие климатические условия.

to isprove, to rotr.ain, temperate, certain, to influence, to rupply, cecesstry, wet, to maintain, to .contain, code-rate, Bost, ward, to prevent, moist, tc cultivate, warmth, favourable, to affect, tc prevail, cold, principal,to use, to hraten, to harrow, humid, fresh, to roll, moisture, to irrigate, different, deficient, to choose, dry, profitable, mild, to provide, to drain, variable, to respond, hot, rapid, to dig, to onserve, cool, to consume, to plow, proper, suitable, to fertilize.

II. Перечислите все известные вам названия с.-х. культур (письменно).

III. Определите, при переводе каких предложений перед инфини­тивом нужно употребить:

1) слово "который";

2)слова "чтобы" или "для того чтобы".

Переведите предложения (устно).

1. Planting of corn should always bo delayed until the ground is sufficiently dry to be worked and warm enough to favour germination. 2. Soils to be used for growing sweet-clover nay be less fertile and more alkaline than those for alfalfa. 3. To get marijrjre. yields of high quality hay one

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must choose the proper stago at which pasture plants are to be cut. 4 .The two lost important factors to be consi­dered in selecting a crop variety to be grown are adapta­tion and the which is to be made of it. 5.For obtain­ing profitable yields of a crop it is necessary to consi­der both environmental conditions and heredity. 6. Manur­es to be applied to corn land not onlу provide the neces­sary plant food, but also increase the water-holding ca­pacity of the soil

IV.Найдите в тексте A:

1) конструкцию "сложное подлежащее" (3-й, 4-й, 5-Й, 7-й абзацы);

2) предложения, в которых глагол is перед инфинитивом переводится словами "состоит в том, чтобы "(1-й, 2-Я абзацы);

3) конструкцию "for + сущ. + инф." (6-й абзац);

4) независимый причастный оборот (2-й абзац).

V. Переведите текст А (устно). Отработайте чтение текста в лаборатории (лабораторная работа № I).

Text А

GRASSLAND MANAGEMENT

The chief object of good pasture maintenance ic to provide green succulent feed for livestock during the enti­re grossing season. The dry matter of immature grasses is higher in protein and vitamins and is more digestible th'ua the dry matter of mature grasses harvested for hay.

There exist several kinds of pastures, the two main, groups being natural pastures and' cultivated ones. Natu­ral pastures are uncultivated lands occupied wholly, or

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jaainly by native types of forage plants. The main aim of establishing cultivated pastures is to grow those gras­ses and .legiimes which are able to provide more feed of better quality than the plants found in native pastures.

Two types of cultivated pastures appear to be most common: permanent and annual pastures. The former are made up of perennial grasses and legumes or of self-seeding annuals, or of both. They remain unplowed for long peri­ods (five years or more). The latter are seeded each year to take the place- of permanent pastures wholly or in part . One knot's such pastures usually to include crops like rye, oats, barley, Sudan grass, ryegrass, soybeans, and rape.

Mixtures of grasses and legumes have been found to be more productive- than seedirees of grasses and legumes grown alons. If grown together, grasses and legumes are mutually beneficial. Grasses tend to protect legumes dur­ing winter, while legumes benefit grasses by providing them with sitrogen.

When choosing the seeding mixture to be grown, the farmer should consider the purpose for which it is to be used as well as the soil and climatic conditions prevail­ing in tho locality. ТЬиз, for some regions mixture of rec clover and timothy has been found tc be more popular than that of alfalfa and brome grass.

Since most of the plant species used for permanent pastures have small seeds, it is necessary to prepare a firm seedbed for the closer contact between the seed and soil particles to be established. It is the use of good

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seeds of small-seeded grasses and legumes that is important in providine f>od pasture coverage relatively free of weeds. The seod should bo drilled rather than broadcasted on a new seedbed. Special drills fcr seeding grasses and legumes have attachments which open furrows, apply fertilizer, and cover the fertilizer with the soil.

The type and quantity of fertiliser applied Ъ.аз а marked effect on the composition of a pasture. Superphos­phate is known to have a stimulating eff3ct on the jqrowxh of all species, especially legumes, while nitrogenous fertilizers stimulate tho growth of grasses.

Pasture maintenance or improvement may be brought about^ by reseeding, fertilization, and good gracing pro­gramme.'

Пояснения и тексту

l) to take the place of ... - заменить;

2) in pert - частично;

3) to bring about - осуществлять.

Лексический минимум к тексту А

grazing, to establish, to occupy, self-seeding, mutually, to protect, to benefit, coveraget furrow, composition.

АУДИТОРНАЯ РАБОТА

VI. Выборочная проверка упражнений из задания на дом № I.

VII. Переведите следующие предложения, обращая внимание на функцию инфинитива (устно).

1. Hot, dry winds increase water losses and in srme areas are reported to reduce the yields of corn considerably. 2. It is advisable to sow cool-weather grasses in early fall, but early spring seeding is preferable on extremely heavy soils. 3. Soil moisture deficiency at the time of

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tuber formation of early potatoes has been found to seri­ously retard this process. 4. Liming materials are Used, to bring-ar out chemical, physical and biological changes in the coil that are so beneficial to plant growth. 5. Titrogon application in autumn does net seem to bs re­quired for winter wheat, provided sufficient application of this element was made in spring as a top dressing. 6. We know the physical properties of the soil, which is either too heavy or too light, to be improved by an in­crease of the humus content. 7. One of the aims of pastu­re maintenance is to keep a good balance between grasses and clovers. 8. There are many rotations to be followed in com production, the best rotation being the one, that provides the abundance cf organic matter, 9. Special drills are likely to have beer used in establishing this new pasture. 10. For a pasture mixture to give the highest yields, its components must be well adapted to soil and climatic conditions of a given region. 11. Seedbed for pasture plants should be sufficiently firm to obtain a uniform, shallow covering cf the seed.

VIII. Найдите в тексте абзац, в котором говорится о преимуществах выращивания смесей трав и бобовых.

IX. Контроль чтения и перевода текста А.