【推荐1】Sam, the four-legged superhero, works to keep a park in Santiago clean. The dog’s superpower? Collect garbage as a _________ for visitors.

Sam, who takes regular _________ in Santiago’s park with his owner Gonzalo Chiang, has become a(an) _________, wearing a green cape(斗篷) in a comic(连环画) used as an educational guide.

It _________ when Sam and his owner had to stop again and again in the city’s largest green area to _________ plastic bottles, cans and food packages. “On Sam’s walks, we began to find a lot of _________,” Chiang said. “From there, the need to come prepared to take away the garbage that we found on each visit became _________. The walk is a good opportunity to _________, rather than litter,” Chiang said.

Park officials were impressed and decided to use Sam’s _________ in its park care campaign. Catalina Aravena turned Sam into a cartoon in Sam: The Parquemet Superhero, __________ visitors to take their waste with them or use __________ points along the path. “This became much more __________ than expected,” Aravena said. “It reached different schools and has spread very well on social media.”

The __________ launched anti-litter campaigns last year urging drink vendors(摊主) to switch from plastic to glass cups and started __________ garbage into separate bins.

“Sam and Gonzalo have __________ us to accelerate this education process and structure this garbage classification,” said Eduardo Villalobos, the park’s acting director.

【推荐2】I am so grateful for the 21-Day Eco challenge hosted by KindSpring. Taking care of our sweet Mother Earth has always been ________ to me in my life and I have taken steps in my everyday life to recycle, reuse, think about ways to preserve, etc. However, this ________ awoke me even more.

Our Scholars Together community has ________ more than we have before in terms of recycling, using our own china cups and metal water bottles when we go out, not buying things in plastic and having green lunches more ________, not occasionally, but the biggest change we made was setting a ________ of Zero Waste.

We set up more boxes and bins for paper that we could ________ again, and recycled every sheet of used-on-both-sides paper, plastics, cans, etc. We also ________ all of our food we cooked or bought,________ throwing some away. We really made it into a challenge. Each day we all ________ how little could be in our dustbins. I realized that I had been throwing paper away that could be used on the other side or could be recycled, and now I am looking everywhere for how things can be used more ________ until recycling time.

The videos offered by KindSpring have been so instructive and ________ for us all. I don't want the Eco challenge to end. We will continue to do our part and ________ the news to our family and friends. Next week we are trying some ________ in our local sandwich and sub shops where the kids like to go to see if we can ________ our own containers in, rather than having them put in bags. It is cool to see how the ________ spreads. Thank you KindSpring for providing the community with daily support and great researched videos and information.

【推荐3】Conservationists are breeding (饲养) lions in the Southern African nation of Zimbabwe. The wildlife experts hope to increase the lion population to keep the great cats from _______.

In some areas, lions and human beings are _______ control of land. Researchers believe something must be done quickly to _______ the animals.

The African Lion and Environmental Research Trust (ALERT) has more than 100 _______ in its breeding program. Antelope Park Farm is one of two sites ALERT operates in Zimbabwe.

Gary Jones heads the Antelope Park Farm. He says ALERT has become involved _______ a sharp drop in the number of lions. His group believes this has been _______ mainly by humans. There are more people moving to this area every year. The lions have _______ land on which to live.

Gary Jones says the decrease in the lion population affects the whole _______. He adds that other African nations are also seeing the _______ effects of this.

There are countries,________ in central and north Africa, where the lion population has reached a(n)________ level. Burundi, a country of east-central Africa, for instance, does not have lions in its national parks. It ________ wants to have lions reintroduced back into its national parks. The reason is that when you take the lion out of the equation (平衡) , suddenly you get all ________ things start happening with the balance of ________. For example, you get too many prey (猎物) species, like giraffes and zebras.

The United Nations’ Food and Agriculture Organization says ________ animals are threatened when farmers try to ________ their plants or animals.

Rene Czudek works for the UN agency. He says his organization has ________ a human-wildlife tool kit (成套工具) that some countries are using to reduce ________ between human and wildlife. “In fact the tool kit is a kind of instrument that extension workers can use with the ________—explain to them how wildlife behaves, and then show them what the risky behaviors are, and how they should ________ their fields accordingly,” Mr. Czudek said.

【推荐3】I fell in love with Yosemite National Park the first time I saw it, when I was 13. My parents took us there for camping. On the way out, I asked them to wait while I ran up to El Capitan, a ________ rock of 3,300 feet straight up. I touched that giant rock and knew ________ I wanted to climb it. That has been my life’s passion ever since-climbing the rocks and mountains of Yosemite. I’ve long made Yosemite my ________.

About 15 years ago I started seeing a lot of ________, like toilet paper, beer cans, and empty boxes, around the area. It’s beyond me why visitors started respecting the place ________ and treated such a beautiful home-like place this way.

I tried ________ trash myself, but the job was too big. I would spend an hour or two on the job, only to find the area trashed all over again weeks later. Finally, I got so ________ it that I decided something had to change.

As a rock-climbing guide, I knew ________ about organizing any big event. But in 2004, together with some climbers, I set a date for a ________. On that day, more than 300 people ________. Over three days we collected about 6,000 pounds of trash. It was amazing how much we were able to ________. I couldn’t believe the difference we made --the park looked clean!

Each year volunteers come for the cleanup from everywhere. In 2007 alone, 2,945 people picked up 42,330 pounds of trash and ________ 132 miles of roadway.

I often hear people ________ about their surroundings. If you are one of them, I would say the only way to change things is by ________ rather than complaining. We need to teach by example. You can’t blame others ________ you start with yourself.