Ответьте на вопросы к тексту.

1. What does the term “ceiling” mean?

2. What does a suspended ceiling consist of?

3. What are new types of suspended ceilings developed for?

4. What are the advantages of demountable panels?

Грамматические упражнения

Упражнение 1. Найдите в тексте причастные обороты и переведите их на русский язык.

Упражнение 2. Задайте вопросы к подлежащему и его определению, а также альтернативный и разделительный вопрос к подчёркнутой в тексте В части предложения.

Лексические упражнения

Упражнение 1. Переведите на русский язык приведённые ниже слова. Если Вы не знаете слово, найдите его в словаре. Выпишите из словаря то значение слова, в котором оно использовано в тексте.

traditional (adj.), plaster (v.), hanger (n.), situated (adj.), underneath (prep.), suspend (v.).

Упражнение 2. Найдите перевод слов списка А в списке В.

Упражнение 3. Напишите предложения с каждым из перечисленных ниже слов:

plan n. - plan v. – planning

plaster n. - plaster v.

Урок 2.10 Фонетическое задание

Прочитайте транскрипцию в списке A, соотнесите её с соответствующим словом из списка B и переведите слово на русский язык. Учтите, что не все слова списка В даны в списке А.

A

['bxrIq]; ['rAnPf]; ['djHpOInt]; ['gxlvqnaIzd]; ['InsjVleIt]; ["lPnGI'tjHdInql]; [SJt]; [slqVp]; ['veIpq]; [Im'pWvIqs]; ['rIvIt]; [DqV]; ['xgrIgIt]; ['waIdlI]

B

Текст A

ROOFS

The structure of a flat roof is generally similar to that of a floor, but lighter. In steel-framed buildings the roof materials most widely used are steel and concrete.

Metal roofing Galvanised steel sheet is widely used for externally insulated roofs. The sheets are fixed to the supporting beams by welding, bolts or blind rivets etc. The required depth of the section and the weight of the sheeting as a function of the total roof load, the span and the support conditions, single or two spans should be estimated. If the upper surface of the roof has to be constructed to a certain fall to help rainwater run-off, this should be achieved by an adequate sloping of the roof beams.

The steel sheet is in itself impervious to water vapour, but the longitudinal and transverse joints are not always watertight. Under normal internal and external conditions (internal relative humidity 65%, internal temperature + 20°C, outside temperature - 15°C), however, a vapour barrier is not required if full air-conditioning is not installed.

Concrete roof slabs Concrete roof slabs, laid in-situ or composed of precast concrete units and with or without composite action, are generally similar in construction to floor slabs. Such roofs are more particularly suitable in circumstances where relatively large loads have to be supported by the roof structure.

Lightweight concrete slabs, though possessing good thermal insulation capacity, must nevertheless be provided with additional insulating layers of adequate thickness to ensure that the temperature in the concrete always remains above the dew-point. Aerated concrete is very suitable as a lightweight covering, as are also various lightweight aggregate concretes. A fall for rainwater run-off from a concrete roof can also be obtained more economically by properly sloping the roof beams than by means of a screed.

Notes:

air-conditioning n. кондиционирование воздуха

blind rivet глухая заклёпка

fall n. зд. уклон

impervious adj. непроницаемый

sheeting n. обшивка