【推荐1】Every weekend, after hiking in the Saneum Healing Forest east of Seoul, the firefighters sip tea and enjoy an arm massage. The aim of program is     1    offer) “forest healing”; the firefighters all have certain types of stress disorder. Saneum is one of three official healing forest in South Korea, which offer a range of programs from meditation to woodcraft to camping. Soon there will be 34 more. South Koreans, many of whom suffer from work stress, digital addiction, and intense academic pressures,    2    (welcome) the medicalization of nature with great enthusiasm. In fact, the government is investing a hundred million dollars     3     a healing complex next to Sobaeksan National park.

There is increasing evidence     4     being outside in a pleasant natural environment is good for us. But what is frustrating is that fewer of us actually enjoy nature regularly. According to Lisa Nisbet, a psychology professor at Canada’s Trent University, evidence for the benefits of nature is pouring at a time    5     we are most disconnected from it. The pressures of modern life lead to long hours spent working indoors. Digital addiction and strong academic pressure add to the problem. In America, visits to parks have been declining since the dawn of email, and so    6     visits to the backyard. Research indicates that only about 10 percent of American teens spend time outside every day.

So what are some of the benefits of nature that Nisbet refers to?    7     (surround) by nature has one obvious effect: the more time we spend in nature, the     8     (stressful) we become. This has been shown to lower blood pressure, heart rates, and levels of the stress hormone, as well as reduce feelings of fear or anger. But studies also indicate that spending time in nature can do more than provide an     9     (improve) sense and well-being; it can lower rates of heart disease and diabetes. That is probably     10     we evolved in nature and have been adapted to the natural environment.

【推荐2】Natural resources are things     1     exist in nature and can be used by people. Some natural resources are renewable, like trees. When one tree is cut down, we can plant a new tree to replace it. Others,     2    , are not renewable, like the coal dug out of the ground. Once it is used, it is     3    . (go)

Although we all know that our natural resources are limited, we often waste them in our daily life. Paper, bottles and cans     4     (throw) away carelessly; food is wasted just because of  its  poor  taste; clothes  are  rejected     5     (simple) due  to  their  old fashion. These valuable natural resources will run out before long     6     better use is made of them.

Actually, everyone can make contributions (贡献) to     7     (protect) our natural resources. For example,     8    riding a bicycle or walking instead of driving, we can save lots of petrol. Water is a very important natural resource because we all need     9     to stay alive. We can make wise    10     (choose) to save water, like reusing the water that has been used to wash vegetables to water flowers.

Ten years ago, Sir Richard Branson launched an exciting challenge. A reward of $25 million would be offered to anyone if he/she     1    (come) up with an achievable and sustainable way to remove greenhouse gases from the air. He thought such an innovation would soon come true, and that    2    (power) people like him would carry out a top-down solution in one fell swoop (一下子).

No such situation appeared, not even with the massive reward. But all is not lost. Branson believed everyone could participate in    3     (save) humanity; it wouldn't be a task for just a few superheroes. It was the spirit    4     inspired Paul Hawken and a network of researchers to come up with the book, Drawdowns.

Drawdown focuses on small, practical steps, not    5    (possible) solutions. Hawken's researchers collected data, information and practical knowledge, creating what is something of an encyclopedia (百科全书) of solutions    6    the climate risk. One section of the book, “Coming Attractions”,     7    (look) at solutions that we are close to getting a handle on, and they are likely to be useful ones for the near future. Not a daydream, in other words,

Just as it says in this book, we can't just build a piece of big equipment    8    (make) the air cleaner. We can make small    9    (contribute) like reducing food waste, changing the lightbulbs to LED, installing solar panels and so on.

We are living in     10    interconnected world, so we need to think about the community, about the common interests of many individuals inhabiting a single planet.

Desertification, the name for     1     happens when land that can be used to grow crops turns into desert, is a growing world problem. The United Nations and     2     (it) member countries are working hard to fight desertification.

China has taken many steps     3     (stop) the process of desertification, including encouraging farmers to build fences, and providing money for people in dry areas to plant more trees and bushes. This is one of     4     cheapest and best ways of decreasing desertification. At the moment, China is planting a ‘Green Wall’ of plants and bushes in the north-east part of the country that could grow even     5     (long) than the Great Wall. China is also spending money trying to find and drill for underground water.

The China National Desertification Monitoring Centre (CNDMC) was set     6     in 1996 to do research into the problem of desertification. The centre has over 300 scientists devoted to     7     (find) measures that will stop desertification.

However,     8     (science) research is not the only way to help. There are many things that everyone can do to help stop desertification. These include better administration of areas that are likely to turn into desert, and training people in how to use water     9     wasting it. There are also things that can     10     (do) at a national or international level, such as sharing information between countries and using satellites to pick out areas likely to be affected by desertification.

【推荐3】What do people do with their old, out of date but still useful computers? Most people don’t know     1     to deal with them . Many old computers are put away in homes . Many more     2     (throw) away as rubbish.

Finally, some companies are thinking of ways     3     they bring down the number of old computers. Sony has agreed to help recycle old Sony products. Dell and other companies also take     4     some old computers .

In some countries, laws have been passed, too. Computer companies have to pay for collecting and recycling their     5     (use) products. And 70% of the computer waste must be recycled. The idea behind the laws     6     (be) that computer companies themselves should pay for the cost. That will encourage them     7     (make) computers easier to repair and upgrade.

Yet while many people are throwing away good computers, others cannot afford     8     at all. Hundreds of organizations are working to solve this problem. They collect and repair old computers. Some also teach others how to repair computers.    9     computers then go to schools, charities and people who need them. Giving a computer that you don’t use to one of the organizations can turn one person’s rubbish     10     someone else’s useful things and cut down waste, too.