Task before you read the passage, talk about these questions

TASK 1.Before you read the passage, talk about these questions:

1. 
   Do you have a greenhouse?
   
2. 
   What do you grow in you greenhouse?
   

TASK 2.Read the text attentively and work on the words in the bold

GREENHOUSES


Greenhouse, also called glasshouse, building designed for the protection of tender or out-of-season plants against excessive cold or heat. In the 17th century, greenhouses were ordinary brick or timber shelters with a normal proportion of window space and some means of heating. As glass became cheaper and as more sophisticated forms of heating became available, the greenhouse evolved into a roofed and walled structure built of glass with a minimal wooden or metal skeleton. By the middle of the 19th century, the greenhouse had developed from a mere refuge from a hostile climate into a controlled environment, adapted to the needs of particular plants. A huge increase in the availability of exotic plants in the 19th century led to a vast increase in glasshouse culture in England and elsewhere. Large greenhouses are important in agriculture and horticulture and for botanical science, while smaller structures are commonly used by hobbyists, collectors, and home gardeners. The modern greenhouse is usually a glass or plastic enclosed framed structure that is used for the production of fruits, vegetables, flowers, and any other plants that require special conditions of temperature. The plants grown in greenhouses fall into several broad categories based on their temperature requirements during nighttime hours. In a cool greenhouse, the nighttime temperature falls to about 7–10 °C (45–50 °F). A warm greenhouse has nighttime temperatures of 10–13 °C (50–55 °F). In a tropical greenhouse, or hothouse, which has nighttime temperatures of 16–21 °C (60–70 °F), caladiums, philodendrons, gardenias, poinsettias, bougainvilleas, passionflowers, and many kinds of palms and orchids can be grown. In countries with cool climates, commercial greenhouses are used to grow tomatoes and other warm-weather vegetables.

Vocabulary:

TASK 3.Match the words (1-6) with the definitions (A - F)

1. 
   Greenhouse a equipment or devices used to provide heat, especially to a
   

building.

2. 
   protection b Something that is warm has some heat but not enough to be hot
   
3. 
   out-of-season c the action of protecting, or the state of being protected
   
4. 
   heating d the state of being safe or sheltered from pursuit, danger, or difficulty
   
5. 
   refuge e a glass building in which plants that need protection from cold weather are grown
   
6. 
   exotic f originating in or characteristic of a distant foreign country
   
7. 
   horticulture g Not in the time of year in which something is grown,
   

produced, or sold

8. 
   temperature h the art or practice of garden cultivation and management
   
9. 
   nighttime i the time between evening and morning; the time of darkness
   
10. 
    warm-weather j a physical quantity that expresses the degree of hotness or
    

coldness

TASK 5. Answer the questions:

1. 
   What is another name of greenhouse?
   
2. 
   How were the greenhouses in the 17th century?
   
3. 
   How shoud be the nighttime temperature in a cool greenhouse?