People are looking for ways to reduce their carbon footprint. Purchasing property that is environmentally responsible is a good investment for those who are _________ their own health and the well-being of the earth. Based on this trend, entire districts, known as eco-communities, are being designed with a green _________ in mind. Dockside Green in Victoria, British Columbia is one of them.

If everything goes according to plan, Dockside Green will be a _________ community along the harbour front of British Columbia’s capital city. The community will be home to 2500 people and will _________ residential, office, and retail space. Builders of Dockside Green have the environment in mind with every choice they make. They ensure proper ventilation (通风), and guarantee residents 100% fresh indoor air. Building materials,, such as paints and wood, are_________ and non-poisonous. Eco-conscious builders use bamboo wherever possible because it grows fast and does not require _________ to grow.

Energy efficiency is one of the _________ concerns in eco-communities, such as Dockside Green. Not only do energy efficient appliances and light fixtures (照明设备) reduce the environmental_________ of heating and hot water, they also save residents and business owners money. Dockside Green claims that home owners will use 55% less energy than average residents in Canada. Residents will have individual water metres_________ studies show that people use around 20% less energy when they are billed for exactly what they use. __________, water is treated at Dockside Green and reused on site for flushing (冲洗) toilets.

Planners of eco-communities such as Dockside Green must take the __________ into account. Dockside Green plans on reusing 90% of its construction waste. They also plan to continue using local suppliers for all of their transport and maintenance needs. This is a great way to reduce__________.

Dockside residents will be encouraged to make use of a mini transportation system and buy into the community’s car share program. Finally, plans are in the works for a high-tech heating system that will use __________ energy instead of fossil fuels (化石燃料).

Dockside residents will __________ excellent local services with high quality healthcare, shopping and education at the heart of the community, along with excellent recreation facilities and plentiful green open spaces. The Eco-Community will favour the use of locally-sourced goods and services; they will be__________ places to live, promoting a tangible (看得见的)sense of civic pride, responsibility and, as the name suggests, community.

Melbourne Girls’ College is getting rid of all dustbins and asking students to take their rubbish home to encourage them to move towards zero waste.

Starting next Monday, the college will gradually ____________ all the rubbish bins in five weeks in classrooms and the yard, ____________ 1,400 students and 140 staff to find their own home for chip packets and juice boxes. Volunteer students will ____________ daily non-compulsory food inspections in which children bringing “zero waste” lunch boxes will be ____________. Students using only ____________ packaging will receive a token (礼券) to win prizes.

The rubbish that students take home may still go to landfill (废物填埋场) via their home bins, ____________ the new policy will help persuade ____________ to buy fewer packaged items and reuse containers. Most issues around carrying rubbish home, such as smell and mess, can be solved. ____________ tuna (金枪鱼) in a tin, for example, can ____________ the school’s compost (堆肥) bin and the tin can be ____________ before it’s taken home.

The college principal Karen Money acknowledges that some parents may not have the time or means to avoid ____________ in single-use packaging, “But we are ____________ to get as many people as we can to avoid it. We talk a lot, ____________ educators, about the bad problems the world ____________, and if we don’t start putting some actions ____________ that beautiful idea, then it’s just empty.”

Hundreds of years ago，life was __ harder than it is today.People didn't have any modern machines，and there was no modern medicine，__.

With the development of social economy，the __ conditions of mankind are becoming better and better.__，life today has brought new problems.One of the biggest problems is __.Water pollution has made our rivers and lakes __；it kils a lot of fish and pollutes our drinking water.Noise pollution makes us talk louder and become angry easily.Air pollution is the most serious.and it's bad __ all living things in the world.Cars，planes and factories all pol-lute our air every day.Sometimes the polluted air is __ thick that it looks like a quilt，which is called smog.

Many countries are making rules to fight against pollution；factories must now clean their waste water __ it is thrown away so that it will be less polluted.Of course，rules are not enough；every person must __ to fight against pollution.