1 . Back in 2007, Uruguay had a serious problem with no obvious answer: The economy was growing very fast, but there wasn’t enough energy to power the rapid _________.

Then Ramón Méndez Galain, a physicist, started _________ different potential paths for Uruguay’s energy future. Finally, he wrote a plan that Uruguay could almost entirely _________ renewable energy. There would be less _________ and it would be the most economical choice Uruguay could make in the long run.

Méndez Galain’s plan was built around two simple _________ about his country. First, while there wasn’t a domestic (国内的) supply of coal or oil, there was a great deal of _________. Second, that wind blew over a country that was known for _________ grassland. His plan for Uruguay’s energy future was to _________ the empty grassland into hundreds of wind farms.

To solve the problem of how to pay for all those wind farms, Méndez Galain came up with a variation on a(n) _________ used by some electric plants in neighboring Brazil, in which state owned power plants handled energy generation, while __________ companies were in charge of power distribution and customer service. Méndez Galain’s plan changed the relationship to the __________, so that private companies would be in charge of setting up and __________ the wind farms, while the state-owned power companies would distribute that energy to its customers.

The strategy worked __________ well. Just within a few years, Méndez Galain had __________ what he had set out to do: 98% of Uruguay’s __________ comes from renewable sources.

2 . For a few moments, the tourists thought they were about to witness something terrible. _________, they had a once-in-a-lifetime opportunity to watch a whale baby emerge into the world.

_________ into the blue waters just off the coast of Dana Point, California, people on a small boat spotted an adult whale swimming around. Then a pool of something _________ appeared to spread.

“Many of us thought it may be a shark attack. But it was not. Instead of the _________ of life, it was the beginning of a new one!” one of them wrote online. “This is a _________ for all of us. We’ve never seen it happen before.”

“The fact that you can see the blood means the _________ must have just come out. It isn’t something that is seen or _________ very often. In fact, I don’t know if there’re any other videos like that. They are extraordinarily _________,” said Schulman-Janiger, a biologist. “I _________ that I were there.”

Schulman-Janiger admitted she’d never __________ an actual birth. About nine years ago, she was just __________ enough to spot a newborn whale less than an hour old.

“Whales are born with soft fins (鳍) that take about 24 hours to become __________. Until then, they can’t really swim and the mothers have to __________ their babies so they can rest and breathe,” she continued. “Animals on land smell each other. But animals in __________ can’t smell. So their skin is very sensitive. That’s why we can see the baby whale and its mother touch their faces __________ in the posted videos.”

3 . Sydnee Geril knows life wouldn’t be the same without her service dog Tulsa. After all, the pup has ___________ her since the moment they met. The girl has a rare form of bone cancer.   ___________, she has a fear of needles, which means she often faints during the treatment. ___________, she has Tulsa to keep her smiling.

Geril was diagnosed with cancer in October 2017. She underwent nine months of ___________. While staying in the hospital, she found ___________ in visits from therapy dogs, which inspired her to ___________ a dog. She will never forget how ___________ she was the day she met Tulsa.

Life threw Geril another ___________ when her cancer returned eight months later. That’s when she ___________ to train Tulsa as a service dog. But it is a ____________ process. While the 2-year-old pup is still ____________ how to do her job, she’s already been a huge ____________. Tulsa can sense when Geril is about to faint and ____________ her by placing a paw on her leg. ____________, Geril has 10 to 30 minutes to react.

Unfortunately, when COVID-19 began, Geril had to ____________ bringing Tulsa with her to the hospital. She couldn’t ____________ catching COVID-19 through the dog’s fur. As the months passed, Tulsa’s ____________ affected Geril’s health. But everything turned around when she discovered a uniform which covers the dog’s ____________ and helps control shedding.

Now, Geril has her best friend at her side whenever she ____________ her. “I’m so happy to have her back,” Geril said.   “I honestly did not ____________ how big an impact she had until I didn’t have her. ”

4 . It was late July and except for a few thin, white clouds the sky was a bright blue. The sun was ________ on the green grass giving it a golden colour. Birds were ________ flying to and from their homes feeding their ________ growing babies. The air was full of the smell of freshly-cut grass and the sweet smell of ________. In the field behind my house, I could see sheep ________ grass by the edge of the woods.

Our black cat, Alice was sleeping under the shade (阴凉) of our Maple tree, without noticing the little rabbit that was ________ along in the field behind my home. I could see the trees, flowers, and plants along the side of the ________. All of this beauty was here for me just as I ________ outside. Filled with all this, my heart felt so ________. I breathed in the sweet, cool, morning air and walked without ________ in the grass, experiencing nature. I knew that a heat wave was on the way so I wanted to enjoy the comfort of the morning and ________ all of these wonderful gifts of nature creation.

Just then a lovely, yellow butterfly flew down and ________ on a flower right in front of me. It beat its ________ and I smiled. It flew up, circled my face and then was blown away by the gentle ________. A peace filled me as I received the message of nature. And I ________ nature for this beautiful day, this beautiful world, and this beautiful life.

5 . This past summer I set out on a journey to Canada’s Arctic. When I left I was wrapped in a blanket of uncertainty and ______.

But when I first met the group members, I knew I didn’t have anything to ______. The group was amazingly ______ and I was soon part of a big family boarding on an amazing ______!

Approaching the Arctic, I was repeatedly ______ with its unusual largeness and its beauty. There I flew over vast glaciers (冰河) and stood on the frozen Arctic Ocean, ______   polar bears walk in search of seal holes, and _______ wait for a meal.

However, I also learned the pollutants carried by ocean from far away have a negative ______ on all Arctic inhabitants. And global warming has put polar bears at ______ because a warmer climate means that they have a shorter time to ______ seals on the ice.

During the journey, I talked with some ______ scientists about the ruins of homes once ______ by the ancient Thule people. I made good friends with people from different parts of world.

The Arctic is a land of incredible beauty which ______ to be preserved. I’ve learned why it is so important to ______ it. This journey has made me more determined to try to ______ that I do not leave negative or harmful footprints on either Earth or its people.

6 . Romero is an 84-year-old man. He owes his _______ to his pet dog, Palomo, who took _______ to him after he got lost in the desert for a week.

On November 27, Romero left his home for a short trip, but he didn’t come back _______. His family wasn’t _______ at first as he used to visit nearby villages in the area and would be back a few days later. However, after four days, the man’s niece, Ramona, panicked and _______ it to the local authorities.

The police with trained dogs were brought in to _______ Romero. They searched the area around, but a week after his _______, Romero was nowhere to be found. That’s when the old man’s faithful dog, Palomo, was brought in as the last _______.

According to one member of the search team, the brown dog _______ them through hills and valleys and finally to the place in the desert where Romero had been ________. His niece told the authorities that Romero sometimes had poor memory and that ________ his getting lost on his trip.

The ________ weak man was rushed to the hospital where he spent two days getting back on his feet. One officer posted online that “Palomo ________ by the hospital door day and night waiting for the ________ of its beloved Romero. The unconditional love of his pet allowed Romero to be ________ with his family”. A photo of Palomo staying by Romero’s side after he carne back home was along with these words.

7 . Not long ago, I was the guide on a wildlife-photography trip to Svalbard near the North Pole. After two days of _______, we arrived there and _______ several seals resting on the ice. I _______ my camera and a motion sensor near the edge of a hole to get a(n) _______ of a seal.

The next morning, I was woken up because a polar bear was _______ closer. At first the bear walked toward our boat. Then it made a(n) _______ turn and headed directly for my camera. The motion sensor reacted to the bear’s _______, making the camera start taking pictures. The bear circled the _______, gently sniffing it. Unexpectedly the camera _______ into the hole and disappeared beneath the deep ice.

That was the ________ moment in my photography career. I was so ________ with myself. A year later I obtained ________ to bring a remotely operated vehicle (ROV) to find the camera. There was a lot more ice than the ________ trip. As I knew well, polar bears could be nearby. We decided to ________ it. The ice was so thin, and soon we ________ technical difficulties and had to pull the ROV out of the water twice. ________ on the third try the ROV found the camera. We shouted and ________ around on the ice.

I was overjoyed to see all my ________. I saw the polar bear breathing and sniffing the camera. ________ that camera is the most satisfying ________ of my career with the lovely animal and its habitat presented.

8 . When people think of tigers, they think: strong and dangerous. But now, the big animal is calling for our help.

There were once eight kinds of ____________in the world, but three died out during the 20th century. In the last 70 years, the___________ of Siberian tigers (东北虎) has gone from as many as 300 to   _________ 22 somewhere. The Siberian tiger has been ________dying out completely. If the government doesn’t make any efforts, it’s quite __________ that there will be no more Siberian tigers in China in ten to twenty years.

In order to double the number of wild tigers in the _________ ten years, the World Wildlife Fund (世界自然基金会) has started a program recently. It__________save wild tigers and put an end to tiger hunting and killing. China, together with twelve other__________, has joined in.

Wild animals, such as red deer and wild pigs, are the main __________ of the tigers. The hunting of these animals is the greatest threat (威胁) to tigers. So the most important thing is________the animals that tigers eat. To protect the wild tigers, we need to call on more people to stop eating and hunting wild animals.

9 . Queen, a 3-year-old small dog, had been overlooked for almost 400 days in an animal shelter. When Scott Poore heard about how sad and _______ Queen had become from living in the shelter for so long, he decided to do what he could to draw some _______ to the homeless dog. He ended up _______ plenty of one-on-one time with Queen after he _______ moved into her kennel(狗窝).

Scott brought along a few belongings and bedding, which he _______ with Queen. He was _______ to live with her until she was adopted(收养). After seven days and seven nights, Queen found her forever home!

As everyone can _______, animal shelters are not a great place to get any _______. But all of Scott’s hardships were rewarded when a father and son saw a report about Queen and her new roommate and _______ to adopt her.

“I just want to thank them for opening up their home and their ________ for such a lovely dog who deserves a life in a(n) ________ home,” he said. “I had the ________ of meeting the father and the son and it’s going to be a ________ place for Queen.”

After Queen had ________ her people, this dog lover ________ to find the next animal who needs him.

10 . When I was young, our family cat broke out in a rash (皮疹). But an examination at the vet’s revealed no answers. When asked, “Has anything ________ in your home?” my mom explained my leave for college, and the vet responded “That’s it!” He gave my cat medicine that she took in my ________, and curiously didn’t need when I was home.

Years later after marriage, I adopted a well behaved cat. Suddenly he decided to ________ all our house plants. As it could be a ________ of his not feeling well, I took him to the vet. When tests all came back ________, the familiar question was asked again, “Has anything changed in your home?” We thought hard but couldn’t get it until one day we ________ our cat unsuccessfully trying to get in the window. Ah-ha! We had replaced the old ________ with new wooden blinds. They clearly ________ him from sitting in his favorite spot. Then I ________ the blinds every morning. The digging stopped.

I had forgotten those two incidents. Until recently our dog started ________ not herself and became an absolute________ on our daily runs. It was right when I was taking her to the vet that I thought of the question I would most ________ be asked. After years of being at home, I had recently gone back to work. It was a difficult ________ for our family, but I never considered the ________ it would have on one particular member of the family. Suddenly, she was ________ all day long in a quiet house. Why hadn’t I realized it before?