Around a bend (拐弯处) on a narrow trail that runs deep into the forest of Gabon’s Loango National Park, Kamaya comes into view. The huge silverback gorilla (大猩猩) coolly watches _______ arrive, then goes back to his meal.

Seated on a _______ branch, the 150-kilogram beast greedily pulls more _______ from the tree to his mouth with a _______ but powerful movement before slowly climbing down the trunk. Soon he falls asleep calmly.

After two years of a total _______ due to the COVID-19 pandemic, the National Parks Agency has decided to restart _______ observations of Gabon’s gorillas,_______ the iconic (标志性的) species will serve as a“loss leader” to _______ ecotourism.

That Kamaya and his _______ of about 10 members are so used to humans is the ________ of long labors by a team of scientists who also ________ data.

They work to make ________ to protect a species ________ with extinction and to ________ foreign tourists. Spending one hour with Kamaya and his family costs $500, on top of charges for ________ to the site and accommodation.

Loango Park, which ________ more than 155,000 hectares of the thickly ________ country, offers rich reward for a 4-5-hour road ________ from Port-Gentil, the second city, followed by the track and a ________ stage by boat.

Though expensive, the price is much lower than that paid to see the mountain gorillas in Uganda or Rwanda. It also gets income to manage protected areas that ________ a safe place for the animals.

When Nihal was eight years old, he went to visit his grandparents who lived near the Krisha river. He saw people _________ rubbish and plastic waste into the water. This was the point at which the ecologist in him _________, and he wanted to do something.

Nihal has always been _________ by environmental issues, but he’s never given them much _________ except reading the relevant novels. _________, one day, after hearing about a large fire _________ by a lithium battery(锂离子电池) at a waste disposal(处置) site in California, he became _________ and determined to do something. He thought, although the problem could be settled, many people who were observing would simply _________ it. That’s when the concept for “ Recycle My Battery ” _________.

Then, Nihal did more research into battery __________ and discovered that many worldwide companies have __________ about batteries. “ Surely there has to be a __________ to keep them out of landfills(废物填埋地),” he remarked. Then he began to __________ batteries at his school and in the neighbourhood. His father would drive him __________ throughout every corner of towns to collect __________ batteries. With so many batteries piled up, he decided to __________ his own non-profit Recycle My Battery.

So far, more than 1.5 million people have __________ Recycle My Battery. Nihal and his strong team of young people have already recycled over 150,000 deserted batteries and taught over 1.5 million people about the __________ of battery recycling.

Nihal, now only 12 years old, has been struggling for three years to __________ the battery pollution, calling on others to raise battery recycling __________ and working towards the aim of zero pollution.

In October 2015, Shah began picking up rubbish from the beach every Sunday morning. At first, it was just him and a neighbor, and then he began _____ others to join in. Word spread and with help from social media, more volunteers got involved.

Shah hasn’t stopped since. He’s now spent 209 weekends _____ this mission inspiring more than 200,000 _____ to join him in what’s been called the world’s biggest beach cleanup. By October 2018, Versova Beach was _____ clean and Shah’s cleanups expanded to another _____ as well as a stretch of the Mithi River and other regions of India.

For Shah, the work has always been a personal journey, but it has earned _____ attention. After he was honored as a “Champion of the Earth” by the United Nations in 2016, Bollywood celebrities and politicians _____ his mission and joined in his cleanups.

Today, Shah is also working with coastal communities to _____ plastic pollution at one of the sources. In areas lacking waste management systems, _____ often end(s) up in streams and rivers that empty into the ______. Shah and his volunteers ______ and assist villagers in reducing, managing and recycling their plastic waste.

“This world ______ too much. I think you must talk less and do action more,” he said. “Every citizen on this planet must be in for a long pull. I feel the ______ to do something for my planet, so this will ______ for life. If each one could start, this journey could become ______. Can we do it together?”