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6. Find in the text words and phrases which mean the same as

  • increase • sickness • common

  • cleaning • save • shine

  • bring life to • harmless • repair

7. Which words or phrases were used in the text to describe

  1. people who are given work 3. usual, common material (2 words)

  2. dirty air 4. dangerous chemical

8. Work in pairs. Think of some questions to review the contents and give answers to make a summary of the text.

UNIT 7

LIGHTING DESIGN

Active Vocabulary

Read and memorize the following words and word combinations:

bounce -відображати; syn. reflect

daylighting - природне освітлення

efficacy - ефективність

glare – сліпуче, яскраве, різке світло

illuminate - освітлювати; illumination, illuminance-освітлення, освітленість

luminous - світловий; освітлений

tenet - принцип

Word Combinations

artificial illuminance - штучне освітлення

cooling mode - режим охолоджування

daylight harvesting - використання денного світла

illuminance distribution - розподіл освітлення

lighting output - інтенсивність освітлення

Рге-text Exercises

1. Read the following international words and guess their meanings:

aspect visual facade zone

geometry neutral mechanical period

component lamp

  1. In each line find two words with the same root. Translate them into Ukrainian:

furnish

furnishing

furnace

fur

further

determine

detest

detention

detergent

determination

invert

innovate

inner

invitation

inversely

excess

except

excited

excessive

excellent

produce

prodigy

profess

productivity

procure

emit

emission

emerge

eminent

emotion

satisfy

saturate

satisfaction

satirical

satin

supply

supper

supplemental

support

supposal

Read the text below and translate the words in bold type formed from the words in the box. Analyze their word-formation model. Translate the text.

basis -

основа

distribute - розподіляти

charge-

заряд

excite - надихати, стимулювати

emit -

випускати

fundamental - основний

history-

історія

main - головний, основний

Historically, light sources have been divided into two types - incandescent and luminescent. Fundamentally the cause of light emission is the same, i.e., electronic transitions from higher to lower energy states. The mode of electron excitement is different, however, as well as the spectral distribution of radiation. Incandescent solid substances basically emit a continuous spectrum, while gaseous discharges radiate mainly in discrete spectral lines, however there is some overlapping. Incandescent rare earth elements can emit lines, whereas high pressure discharge produces a continuous spectrum.