1 . 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, 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 harbor front of British Columbia’s capital city. The community will be home to 2,500 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, but they also save residents and business owners money. Dockside Green claims that homeowners will use 55% less energy than average residents in Canada. Residents will have individual water metres (水表) _______ 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 for flushing toilets.

Planners of eco-communities such as Dockside Green must take the ________ into consideration. 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 take advantage of a mini transport system and buy into the community’s car share program. Finally, plans are underway for a high-tech heating system that will use ________ energy instead of fossil fuels.

Dockside residents will ________ excellent local services with high-quality healthcare, shopping and education at the heart of the community, along with excellent leisure facilities and plentiful green open spaces. Eco-communities will prefer the use of locally-sourced goods and services; they will be ________ places to live, promoting a sense of civic pride, responsibility and, as the name suggests, community.

3 . Many cities around the world today are heavily polluted. Careless methods of production and ________ of consumer demands for environment friendly products have ________ the pollution problem. One ________ is that millions of tons of glass, paper, plastic, and metal containers are produced, and these are difficult to get rid of.

________, today, more and more consumers are choosing “green” and demanding that the products they buy should be safe for the environment. ________ they buy a product, they ask questions like these: “Will this shampoo damage the environment?” “Can this metal container be ________ or can it only be used once?”

A recent study showed that two ________ five adults now consider the environmental safety of a product before they buy it. This means that companies must now change the ________ they make and sell their products to make sure that they are “green,” that is, friendly to the environment.

Only a few years ago, it was impossible to find green products in supermarkets, but now there are hundreds. Some supermarket products ________ labels to show that the product is green. Some companies emphasize that their products are clean and safe in their advertising and have made it their main selling ________.

The ________ for a safer and cleaner environment is making companies rethink ________ they do business. No longer will the public accept the old ________ of “Buy it, use it, throw it away and forget it.” The public ________ is still here, and companies are ________ their act gradually.

5 . One evening, Catherine was at home as usual. As her ________ swung between what she was going to do with her life and her dinner plans for the evening, she was unexpectedly ________ by an urgent call from her sister “Get over here! Turn on NBC and cheek these guys out. They are just like you.” One Facebook message and a phone interview later, Catherine ________ herself on a bus with 8 strangers in the middle of the sweltering desert of Utah, picking up trash and ________ awareness of zero-waste and climate change.

With a deep ________ of the environment and a desire to make a ________, Catherine, Davey, and a group of self ________ environmental pick-up artists” went on a coast to coast road side trash pick-up. As they walked sometimes only ________ 0.9 miles on an entire day they ________ and steadily made their way across the United States for three years, picking up a total of 201,678 pounds of trash.

Catherine and Davey ________ wonderful stories of hope and inspiration with us that fueled their efforts to continue their journey. After spending weeks silently ________ how she would have enough money to fly home for her two-week spring break, Catherine found a blank, unidentified envelope ________ with S850 cash in the desert, just enough to get her home and back. After their bus ________ outside of Denver, they unexpectedly got ________ and arrived in Yosemite National Park three weeks later, just in time for the “Yosemite Facelift” where volunteers from all over the state came together with a ________ of cleaning up trash all over the park. Together, their team learned to simply devote themselves to their task, and surrender to the journey.

7 . Over two weeks ago I was standing on the summit of Mount Qomolangma. It was the top of many years' hard work, and the_______of a childhood dream.

I have been overwhelmed by the tide of goodwill and support. But one thing has become_________apparent. Many people have constant misunderstandings about Mount Qomolangma. In their minds, Qomolangma has_________her crown. She has become a mountain connected with death, exploitation and_________.

The most common question I get asked is: "Is it_________with rubbish?" As a United Nations patron(资助人)of the wilderness, one of my roles is to_________back the Earth's remaining wildernesses and to act as a_______for the wild.

I climbed Qomolangma expecting a rubbish dump but what I found_________me: I_________saw any litter, from the airport to the summit.

The Nepalese have____________some huge clean-up campaigns in recent years, perhaps to improve their reputation, but also in response to some tragic natural disasters. The government____________a number of requirements including that each climber____________an additional 8kg of litter(not including their own) and incentives(激励)for Sherpas(夏尔巴人)of $ 2 per kilo of rubbish cleaned.

The results have been____________. The country lanes of Great Britain have more rubbish than the path to base camps; despite the 100, 000 footsteps I saw one of the cleanest, tidiest wilderness trails I have encountered.

I have spent time in many of the world's popular wilderness locations and I would say Nepal should be proud. It is an example of man repairing the____________he has done. As our focus turns to the oceans and the seemingly____________task of repairing our marine habitat, we could look at Qomolangma as a fine example of turning back the clock.

8 . “What's all this tree-planting for? " I was asked when I began writing about restoring(修复) a piece of land I had _________ in Somerset. The truth is, I just love trees. And I am not _________ “As I get older, all I really _________ is to plant trees ,” Prince Charles says in a BBC programme in which he is _________ in the wood he planted on the day Prince George was born.

We have inherited _________ and wonderful trees in our cities and villages. They were planted, or self-sown, years, even centuries ago. We take them for granted, _________ the creatures living among them, remain in ignorance of the _________ trees are doing us (cleaning the air, for example) and cut them down for _________. Yet we keep a feeling of _________ for them. This may account for the __________ the government faced in 2010 when it sought to sell off publicly owned woods, and for the wide support the Woodland Trust (a tree-protecting charity) __________.

Trees need __________, which is why I, a city-resident, bought my Somerset woodland in 1999. At that time, climate change was already well proved, __________ my hopes of planting long-lived oaks and pines gradually ________ anxiety about their chances. Tree diseases new to the UK, wind, drought and flood were all putting them at __________.

But I did not __________ things to move so fast. The woodland is good, and the new trees are growing like mad, but the creatures are __________. The rabbits have disappeared(due to some disease, perhaps?) and the owl has moved. The bees and butterflies are still there but in smaller ________. If this can happen in my wood that is __________ pesticides (杀虫剂)and herbicides (除草剂) , it surely indicates we need to give nature the chance to restore its own ________. Meanwhile, I love my wood, and tree-planting has also done wonders for restoring my balance between town and country.

9 . Even if you’re a couch potato like me, you’ll know the benefits of running. But if you’re a real fitness fan, the ____ running challenge is to participate in a marathon. While many runners’ ______ is to beat their personal best and cross the finishing line without ______ , they’re also doing it for a good cause – to generate funds for ______ .

But just like other ______ events, the marathon also ______ a massive carbon footprint. Thousands travel - some by plane - to the location, and ______ from food packaging and goody bags gets left behind by ____ and runners. For example, during the London Marathon in 2018, ______ 47,000 plastic bottles were collected. This is becoming a big issue for cities – how to ______ a worthwhile event, encouraging people to exercise and help charities, while ______ the environment?

Several cities have ______formal plans to reduce their environmental influence and ______ sustainable (可持续的) ideas. One event in Wales, for example, introduced the recycling of ______ running equipment. The London Marathon tried to deal with the environmental problem by ______ the number of drink stations on the running route, ______ water in paper cups and offering some drinks in edible (可食的) seaweed capsules. They also tried new bottle ______ made from recycled plastic so 700 runners could ______ water bottles with them during their run.

Dr Andrea Collins from Cardiff University told the BBC: "Training for a marathon makes you more sustainable in day-to-day activities. I started walking or running to work every day and _______ private cars altogether. Being environmentally friendly becomes a good ______ ." So while you not be an excellent runner in a marathon, let’s hope the event, in terms of sustainability, certainly is!

10 . The last complete ice shelf in the Canadian Arctic has collapsed(倒塌).The Milne Ice Shelf is _______ Ellesmere Island,Canada.The shelf lost _______ 40 percent of its area in just two days at the end of July.

Above normal air temperatures,offshore winds and open water in front of the shelf are all parts of the _______ for its break-up.The shelf area shrank(缩小）by about 80 square kilometers.By comparison,the island of Manhattan in New York _______ about 60 square kilometers.Temperatures in the polar area have been _______ intense(强烈的).Summer in the Canadian Arctic this year has been 5 degrees Celsius_______ the 30-year average.That has _______ smaller ice caps,_______ can melt quickly.As a glacier disappears,more bedrock is left _______.This then speeds up the melting__________. A research camp,including instruments for measuring water flow through the ice shelf,was lost when the shelf at Ellesmere Island collapsed.

＂It was only a __________ of time,"said Mark Serreze,director of the National Snow and Ice Data Center. His study showed the ice caps were__________ to disappear within five years.Their disappearance was __________ last month,when NASA satellite images of the area showed a complete lack of snow and ice.Serreze's __________ trip to the Arctic was many years ago."When I was there in the 1980s,I knew every square inch of those ice caps,"Serreze said."You have the good __________.It's like your first girlfriend.I want her back."