[简答题]People are not generally aware of the popularity of pet ownership. Research shows that pets act as companions and protectors, stress relievers and in some cases help to foster family cohesion. While pets are traditionally associated with family-type households, they are just as important to households without children. In an era when the population is ageing and more people are living alone, pets can provide valuable relief from loneliness.
Urban pet management has been the subject of extensive debate among veterinarians and those involved in local government for some time. Part of the reason is that people complain more readily about other people’s pets than ever before. Emphasis on urban consolidation has meant that smaller homes and back gardens and multi-dwelling developments not only discourage people from owning pets but also place greater demands on scarce public open space. Pet owners may face tougher restrictions from either their local council or resident manage

[判断题]People are not generally aware of the popularity of pet ownership. Research shows that pets act as companions and protectors, stress relievers and in some cases help to foster family cohesion. While pets are traditionally associated with family-type households, they are just as important to households without children. In an era when the population is ageing and more people are living along, pets can provide valuable relief from loneliness.
Urban pet management has been the subject of extensive debate among veterinarians and those involved in local government for some time. Part of the reason is that people complain more readily about other people’s pets than ever before. Emphasis on urban consolidation has meant that smaller homes and back gardens and multi-dwelling developments not only discourage people from owing pets but also place greater demands on scarce public open space. Pet owners may face tougher restrictions from either their local council or resident management com

[填空题]Most people are aware that outdoor air pollution can damage their health, but many do not know that indoor air pollution can also have significant health effects. Environmental Protection Agency studies indicate that indoor levels of pollutants may be 2-5 times, and (47) more than 100 times, higher than outdoor levels. These levels of indoor air pollutants may be of particular concern because most people spend about 90% of their time (48) .
There are many sources of indoor air pollution in any home. These include combustion sources such as oil, gas, coal, wood, and tobacco products; building materials and furnishings as (49) as deteriorated (变坏的) asbestos-containing (含有石棉成分的) insulation (绝缘材料), wet or damp carpet, and cabinetry or furniture made of certain pressed (50) products; products for household cleaning and maintenance, personal care, or hobbies; central heating and cooling (51) and humidification devices; and outdoor