2 . Molai grew up in a tiny village in India. The village lay near some wetlands which became his second___________. He learned the value and beauty of _________ there from a very young age.

When he was 16, Molai began to notice something _________ happening around his home. A flood had hit the area earlier that year and the _________ it caused had driven away a number of birds. _________, the number of snakes had declined as well. He _________ that it was because there weren’t enough trees to protect them from the _________. The solution, of course, was to plant trees so the animals could seek _________ during the daytime. He turned to the _________ department for help but was told that nothing would grow there. However, Molai went looking on his own and __________a nearby island where he began to plant trees.

________ young plants in the dry season was ____________for a lone boy. Molai built at the __________ of each sapling(幼树)a bamboo platform, where he placed earthen pots with small holes to____________ rainwater. The water would then drip(滴落)on the plants below.

Molai __________ to plant trees for the next 37 years. His efforts have resulted in 1,360 acres of naturally-grown land that has become home to many plants and animals.

3 . Every year about 40,000 people attempt to climb Kilimanjaro, the highest mountain in Africa. They _______ with them lots of waste. The _______ might damage the beauty of the place. The glaciers(冰川) are disappearing, changing the _______ of Kilimanjaro.

Hearing these stories, I’m _______ about the place — other destinations are described as “purer” natural experiences.

However, I soon _______ that much has changed since the days of disturbing reports of _______ among tons of rubbish. I find a _______ mountain, with toilets at camps and along the paths. The environmental challenges are _______ but the efforts made by the Tanzania National Park Authority seem to be _______.

The best of a Kilimanjaro ________, in my opinion, isn’t reaching the top. Mountains are ________ as spiritual places by many cultures. This ________ is especially evident on Kilimanjaro as ________ go through five ecosystems(生态系统) in the space of a few kilometers. At the base is a rainforest. It ends abruptly at 3, 000 meters, ________ lands of low growing plants. Further up, the weather ________ — low clouds envelope the mountainsides, which are covered with thick grass. I ________ twelve shades of green from where I stand. Above 4, 000 meters is the highland ________: gravel(砾石), stones and rocks. ________ you climb into an arctic-like zone with ________ snow and the glaciers that may soon disappear.

Does Kilimanjaro ________ its reputation as a crowded mountain with lines of tourists ruining the atmosphere of peace? I found the opposite to be true.

5 . For most people, having things stolen feels like an offence. Robbie Pruitt admitted that he got ________ when he discovered the theft of his mountain bike last September. But soon enough, his ________ took a turn. After letting go of his anger and frustration, he found himself on a road to sympathy ________.

For Pruitt, a keen bicyclist, the first thing to do was ________ his stolen bike. But when he went bike shopping, he found few available, which got him thinking: What if the ________ of bikes was Covid-19 related, and what if the person who'd taken his bike really needed ________ to get to work?

With that thought in mind, Pruitt ________ a plan and posted it on the community website. He ________ to fix bikes free of charge for anyone who needed it. He also asked for unwanted bikes, which he would repair-again ________. And then he would donate them to folks who could truly use them but didn't have the ________ to buy one.

The day the post went live, Pruitt received thirty ________ bicycles. Then came more than 500 ________ for detailed information. By the end of 2020, Pruitt had repaired more than 140 for donation or to be ________ to their owners.

Pruitt tries to give his donations to families that are ________ struggling. ________ simply satisfying a material need, he has provided an opportunity for kids in his neighborhood to learn how to fix their own bikes.

In addition to ________ skills, Pruitt's lessons teach teamwork, encourage self-worth, and promote feelings of community. ________, the kids have gained a sense of accomplishment.

"It's a really great ________ for kids,“ said a neighbor in an interview with the local newspaper. "Pruitt is certainly providing a ________, but it's not just the bikes. It's the relationships in the community. It's the ________ that he can make on people."

7 . Last year I decided to do some volunteer work. I began to________on the Internet and discovered Volunteer USA. Three months later I________myself on a plane to Phoenix, Arizona. I was________at the thought of living with loads of new people for three months. However, within fifteen minutes of________, my worries had gone. Everyone was so________and like-minded that it was very________to feel at home.

I was sent to the Coronado National Forest for my first 8-day________. We had to________everything we needed and walk three miles to where we worked. It may not seem like a________way but in 35℃ heat and with a heavy pack, my legs were on fire.

My job was to________a stairway out of rock. This________climbing up and down the side of a mountain inhabited (栖息) by mountain lions, although I should say they were only heard,never________.

Three days later, a beautiful stairway came into being. The________of knowing that my________will be on that mountainside for years to come is massive.

But on the last night we were________in a thunderstorm. I woke up at midnight to find a swimming pool in my tent. The temperature was close to________. I had to spend the rest of the night trembling in the only________part of my tent.

________, I suffered a lot. But I know whatever I have to face in my life I was there and I________. I think I am much________for having taken part in the project.

10 . Two weeks earlier, my son, Ben, had got in touch, he’d moved to England with his mum when he was three and it had been 13 years since I’d _________ seen him. So imagine my _________ when he emailed me saying he wanted to come to visit me.

I was _________! I arrived early at Byron Bay where we were supposed to _________. The bay was _________ in sunshine, and there was a group of kayakers around 150m off the shore. Getting a little _________. I realized one kayak（皮划艇）was in _________. “Something’s not _________!” I took off my T-shirt and _________ into the water. I saw there were two instructors on board and a man lying across the middle. He was __________ violently. Linking arms with one of the instructors. I helped __________ the young man out of the water. He was unconscious and as I looked at his face, something __________ to me. Those brown eyes were very __________. “What’s his name?” I asked the instructor. “Ben,” he replied, and immediately I __________. That stranger was my son!

The instructors called for an ambulance. __________, after a brief stay in hospital, Ben was well enough to be allowed to __________ and later the family met up for dinner. We chatted about everything and then Ben __________ to me. “I just want to say thank you,” he said, “You __________ my life!”

I still can’t believe what a __________ it was. I’m just so glad I was there __________ to help my son.