Иностранный язык – страница 52

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Plastic Materials
1. Plastic materials are not found in nature. Plastic is formed by extrusion or injection molding under very high pressure. It can be molded into any desired shape. Organic plastics are divided into two general groups: thermosetting and thermoplastic. The thermosetting group becomes rigid through a chemical change that occurs when heat is applied. These plastics cannot be remolded. The thermoplastic group remains soft at high temperatures and must be cooled before becoming rigid. This group is not used generally as a structural material.
2. Plastics are rapidly becoming important construction materials because of their great variety, strength, durability and lightness. Plastics are light. The benefits of light weight coupled with good strength and absence of corrosion offer tremendous potential as alternatives to traditional building materials. A given volume of polythene weights less than one-eighth of an equal volume of iron and less than half of the same volume of aluminum.
3. Plastics are used in the industry and in the household: from rockets and electronics to toys and house ware. Plastic products offer many advantages over the materials they replace, such as ease of handling, lower maintenance costs and rapidity of assembly. The insulation and dielectric properties of plastics led to their early use in the electrical engineering industry, which was followed by special application in mechanical engineering.
4. Using of plastics as materials for a construction in the form of sheets, rods or tubes is substituting the conventional metals. Plastics offer a lot of properties for the designs. Plastics have now been developed to such an extent that they can be applied to almost every branch of building, from the laying of foundations to the final coat of paint.

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Why do plastics replace traditional building materials?

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Plastic Materials
1. Plastic materials are not found in nature. Plastic is formed by extrusion or injection molding under very high pressure. It can be molded into any desired shape. Organic plastics are divided into two general groups: thermosetting and thermoplastic. The thermosetting group becomes rigid through a chemical change that occurs when heat is applied. These plastics cannot be remolded. The thermoplastic group remains soft at high temperatures and must be cooled before becoming rigid. This group is not used generally as a structural material.
2. Plastics are rapidly becoming important construction materials because of their great variety, strength, durability and lightness. Plastics are light. The benefits of light weight coupled with good strength and absence of corrosion offer tremendous potential as alternatives to traditional building materials. A given volume of polythene weights less than one-eighth of an equal volume of iron and less than half of the same volume of aluminum.
3. Plastics are used in the industry and in the household: from rockets and electronics to toys and house ware. Plastic products offer many advantages over the materials they replace, such as ease of handling, lower maintenance costs and rapidity of assembly. The insulation and dielectric properties of plastics led to their early use in the electrical engineering industry, which was followed by special application in mechanical engineering.
4. Using of plastics as materials for a construction in the form of sheets, rods or tubes is substituting the conventional metals. Plastics offer a lot of properties for the designs. Plastics have now been developed to such an extent that they can be applied to almost every branch of building, from the laying of foundations to the final coat of paint.

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Building Construction
1. Building construction has its own history, which is marked by a number of trends. One of these trends is increasing durability of the materials. The first building materials were perishable such as leaves, branches and animal hides. Later people began to use more durable natural materials such as clay, stone, timber. Finally, synthetic materials such as bricks, concrete, metals, plastics were used in building.
2. Another trend is quest for buildings of greater height and span. It was possible by the development of stronger building materials and by knowledge of how materials behave and how to exploit them to greater advantage. The third trend involves the degree of control exercised over the interior environment of buildings: increasingly precise regulation of air temperature, light and sound levels, humidity, air speed.
3. All factors that affect human comfort become possible. A modern trend is change in energy of the construction progress, starting with human muscle power and developing toward the powerful machinery.

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Building Construction
1. Building construction has its own history, which is marked by a number of trends. One of these trends is increasing durability of the materials. The first building materials were perishable such as leaves, branches and animal hides. Later people began to use more durable natural materials such as clay, stone, timber. Finally, synthetic materials such as bricks, concrete, metals, plastics were used in building.
2. Another trend is quest for buildings of greater height and span. It was possible by the development of stronger building materials and by knowledge of how materials behave and how to exploit them to greater advantage. The third trend involves the degree of control exercised over the interior environment of buildings: increasingly precise regulation of air temperature, light and sound levels, humidity, air speed.
3. All factors that affect human comfort become possible. A modern trend is change in energy of the construction progress, starting with human muscle power and developing toward the powerful machinery.

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Constructing a lofty house demands …

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Building Construction
1. Building construction has its own history, which is marked by a number of trends. One of these trends is increasing durability of the materials. The first building materials were perishable such as leaves, branches and animal hides. Later people began to use more durable natural materials such as clay, stone, timber. Finally, synthetic materials such as bricks, concrete, metals, plastics were used in building.
2. Another trend is quest for buildings of greater height and span. It was possible by the development of stronger building materials and by knowledge of how materials behave and how to exploit them to greater advantage. The third trend involves the degree of control exercised over the interior environment of buildings: increasingly precise regulation of air temperature, light and sound levels, humidity, air speed.
3. All factors that affect human comfort become possible. A modern trend is change in energy of the construction progress, starting with human muscle power and developing toward the powerful machinery.

Ответьте на вопрос.
What forms interior environment of buildings?

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Building Construction
1. Building construction has its own history, which is marked by a number of trends. One of these trends is increasing durability of the materials. The first building materials were perishable such as leaves, branches and animal hides. Later people began to use more durable natural materials such as clay, stone, timber. Finally, synthetic materials such as bricks, concrete, metals, plastics were used in building.
2. Another trend is quest for buildings of greater height and span. It was possible by the development of stronger building materials and by knowledge of how materials behave and how to exploit them to greater advantage. The third trend involves the degree of control exercised over the interior environment of buildings: increasingly precise regulation of air temperature, light and sound levels, humidity, air speed.
3. All factors that affect human comfort become possible. A modern trend is change in energy of the construction progress, starting with human muscle power and developing toward the powerful machinery.

Определите основную идею текста.


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Modern Architecture
1. Modern architecture is the term universally applied to the style of building, which evolved a number of countries after the First World War as the International Style and which has culminated in the current design of glass, concrete and steel based on module construction presently being erected all over the world.
2. In the early 20th century an instinctive desire of architects to break away from the confusions and contrivances of the 19th century, and their efforts to introduce a style which responded to new social needs and exploited new materials led to the changed appearance of buildings; simple rectangular outlines; avoidance of symmetry; absence of applied ornament; flat roofs and white walls, resulting from the use of reinforced concrete, now the favorite material; large windows, which new structural techniques permitted, but which were encouraged also by the spirit of the times, which believed in opening up the interiors of buildings to light and air.
3. Until the 1930s, Germany was the main center of new architecture because of the presence there of a unifying institution, the Bauhaus, a college of design, which became synonymous with modern teaching methods in architecture.
4. In the years after 1945 the emphasis was on town-planning and housing. This was the era of new towns, vast housing estates. In matters of architectural style, it became less a question of conflict between period revival and modern design than between buildings designed for effect and those that aimed at the creation of a modern vernacular and a humane and harmonious environment. The Modern Movement cannot be said to have had a clear historical end. It always exited concurrently with other ways of designing.

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Modern Architecture
1. Modern architecture is the term universally applied to the style of building, which evolved a number of countries after the First World War as the International Style and which has culminated in the current design of glass, concrete and steel based on module construction presently being erected all over the world.
2. In the early 20th century an instinctive desire of architects to break away from the confusions and contrivances of the 19th century, and their efforts to introduce a style which responded to new social needs and exploited new materials led to the changed appearance of buildings; simple rectangular outlines; avoidance of symmetry; absence of applied ornament; flat roofs and white walls, resulting from the use of reinforced concrete, now the favorite material; large windows, which new structural techniques permitted, but which were encouraged also by the spirit of the times, which believed in opening up the interiors of buildings to light and air.
3. Until the 1930s, Germany was the main center of new architecture because of the presence there of a unifying institution, the Bauhaus, a college of design, which became synonymous with modern teaching methods in architecture.
4. In the years after 1945 the emphasis was on town-planning and housing. This was the era of new towns, vast housing estates. In matters of architectural style, it became less a question of conflict between period revival and modern design than between buildings designed for effect and those that aimed at the creation of a modern vernacular and a humane and harmonious environment. The Modern Movement cannot be said to have had a clear historical end. It always exited concurrently with other ways of designing.

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In the second half of the XXth century the emphasis in architecture was on …

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Modern Architecture
1. Modern architecture is the term universally applied to the style of building, which evolved a number of countries after the First World War as the International Style and which has culminated in the current design of glass, concrete and steel based on module construction presently being erected all over the world.
2. In the early 20th century an instinctive desire of architects to break away from the confusions and contrivances of the 19th century, and their efforts to introduce a style which responded to new social needs and exploited new materials led to the changed appearance of buildings; simple rectangular outlines; avoidance of symmetry; absence of applied ornament; flat roofs and white walls, resulting from the use of reinforced concrete, now the favorite material; large windows, which new structural techniques permitted, but which were encouraged also by the spirit of the times, which believed in opening up the interiors of buildings to light and air.
3. Until the 1930s, Germany was the main center of new architecture because of the presence there of a unifying institution, the Bauhaus, a college of design, which became synonymous with modern teaching methods in architecture.
4. In the years after 1945 the emphasis was on town-planning and housing. This was the era of new towns, vast housing estates. In matters of architectural style, it became less a question of conflict between period revival and modern design than between buildings designed for effect and those that aimed at the creation of a modern vernacular and a humane and harmonious environment. The Modern Movement cannot be said to have had a clear historical end. It always exited concurrently with other ways of designing.

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What were the main reasons of the appearance of modern architecture?

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Modern Architecture
1. Modern architecture is the term universally applied to the style of building, which evolved a number of countries after the First World War as the International Style and which has culminated in the current design of glass, concrete and steel based on module construction presently being erected all over the world.
2. In the early 20th century an instinctive desire of architects to break away from the confusions and contrivances of the 19th century, and their efforts to introduce a style which responded to new social needs and exploited new materials led to the changed appearance of buildings; simple rectangular outlines; avoidance of symmetry; absence of applied ornament; flat roofs and white walls, resulting from the use of reinforced concrete, now the favorite material; large windows, which new structural techniques permitted, but which were encouraged also by the spirit of the times, which believed in opening up the interiors of buildings to light and air.
3. Until the 1930s, Germany was the main center of new architecture because of the presence there of a unifying institution, the Bauhaus, a college of design, which became synonymous with modern teaching methods in architecture.
4. In the years after 1945 the emphasis was on town-planning and housing. This was the era of new towns, vast housing estates. In matters of architectural style, it became less a question of conflict between period revival and modern design than between buildings designed for effect and those that aimed at the creation of a modern vernacular and a humane and harmonious environment. The Modern Movement cannot be said to have had a clear historical end. It always exited concurrently with other ways of designing.

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                                                    Mixed economies
1. A mixed economy contains elements of both market and planned economies. At one extreme we have a command economy, which does not allow individuals to make economic decisions, at the other extreme we have a free market, where individuals exercise considerable economic freedom of choice without any government restrictions. Between these two extremes lies a mixed economy.
2. In mixed economies some resources are controlled by the government whilst others are used in response to the demands of consumers. Technically, all the economies of the world are mixed. Some countries are nearer to command economies, while others are closer to free market economies.
3. The aim of mixed economies is to avoid the disadvantages of both systems while enjoying the benefits that they both offer. So, in a mixed economy the government and the private sector interact in solving economic problems. The state controls the share of the output through taxation and transfer payments and intervenes to supply essential items such as health, education and defence, while private firms produce cars, furniture, electrical items and similar, less essential products.
4. The UK is a country with mixed economy. Some services are provided by the state (for example, health care and defence) whilst a range of privately owned businesses offer other goods and services.

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                                                    Mixed economies
1. A mixed economy contains elements of both market and planned economies. At one extreme we have a command economy, which does not allow individuals to make economic decisions, at the other extreme we have a free market, where individuals exercise considerable economic freedom of choice without any government restrictions. Between these two extremes lies a mixed economy.
2. In mixed economies some resources are controlled by the government whilst others are used in response to the demands of consumers. Technically, all the economies of the world are mixed. Some countries are nearer to command economies, while others are closer to free market economies.
3. The aim of mixed economies is to avoid the disadvantages of both systems while enjoying the benefits that they both offer. So, in a mixed economy the government and the private sector interact in solving economic problems. The state controls the share of the output through taxation and transfer payments and intervenes to supply essential items such as health, education and defence, while private firms produce cars, furniture, electrical items and similar, less essential products.
4. The UK is a country with mixed economy. Some services are provided by the state (for example, health care and defence) whilst a range of privately owned businesses offer other goods and services.

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In mixed economies the government …