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XVIII. Read and retell the following text using the introductory phrases.

Scrapers

Scrapers towed (буксировать) by crawler tractors have a very low traveling speed. The working cycle of a scraper takes 5 – 20 minutes. They can also be towed by two-wheel air-tyred tractors. The tractor and the scraper have two wheels each. The tractor and the scraper are linked by means of a pivot. So they can turn in two planes. The tractor can turn through 90 deg. to either side and through + or – 15 degrees vertically.

Scrapers have unique abilities for cutting, filling, pulverizing and grading. Scrapers handle areas restricted to rubber-tyred equipment. However (однако), scrapers lose (терять) traction on wet surfaces and cannot load materials that are too rocky (твердый) Because of their speed elevating graders outperform (превосходить) crawlers and are more economical on longer hauls (перевозки).

The all-purpose scraper can pulverize top soil, bring low spots to grade and finish grade projects sides. In road building the elevating scraper acts as a clean haul earthmover. Scrapers load up skin excess (излишки отбросов) that graders push to the side and haul it to low spots.

XIX. Learn the following dialogue.

Situation: You are preparing for the examination in English and discuss the theme “scrapers” with your friend.

A. Let`s discuss the theme “scrapers”.

B. I don`t mind. As far as I know scrapers remove soil slice by slice and transport it to an earthern structure.

A. Yes, they also may push soil to a dump and then level it.

B. What do you think, can they compact soil?

A. Yes, they partially compact it. Scrapers can operate on a wide variety of soils, including black earth, sand and clay.

B. Can they operate on soils containing large stones?

A. No, as far as I remember, they should not be used on soils containing large stones.

B. I see, thank you.

A. Not at all.

УРОК 9 LESSON NINE

Фонетика: Повторение чтения буквосочетаний «OW» и «CH».

Грамматика: Перевод глаголов «to be», «to have» в модальном значении.

Complex Subject. (Повторение).

Тема: Автогрейдеры. Power Graders.

E X E R C I S E S

I. Read the following words.

[Pu] - low, lower, tow, own, snow, follow, window.

[au] - power, powerful, tower, now.

[k] - mechanical, character, characteristic, chemical.

II. Form nouns from adjectives by means of suffixes “-ity’и “ability”.

Example: necessary – necessity – необходимыйнеобходимость;

responsible – responsibility – ответственныйответственность.

Active, possible, reliable, manoeuvrable, capable, stable, universal.

III. Learn the following words.

1.Power grader [`pauq`greidq] – автогрейдер

2. Scarifier [s`kxrifaiq] n – кирковщик

3. Side ditch [`said`diC] – кювет

4. Shape [Seip] v - придавать форму, профилировать

5. Towed [`tPud] a – прицепной

6. Gradient [`greidiqnt] n – уклон, скат

7. Profile [`prPufail] a – вертикальный

8. Possibility [,pOsi`biliti] n - возможность

9. Carry out [`kxri`aut] – выполнять

10. Lay [lei] v –прокладывать

11. Elevation [eli`veiSn] n –высота

12. Zero elevation [`ziqrPu eli`veiSn] – нулевая отметка

13. Volume [`vOljHm] n – объем

14. Set [set] v – устанавливать

15. Angle [`xNgl] – угол

16. Perform [pq`fLm] – выполнять

17. Repair [ri`pFq] n – ремонт

v – ремонтировать

18. Medium [`mJdiqm] a – средний

19. Plough [ plau] n - плуг

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