2 . A dog in Virginia jumped into action on Thursday morning to warn a family of danger. Charity Golloway and her two children were able to make it out of their house without _________ and call the local fire department, thanks to Butter, a homeless dog that had _________ a few months before.

Charity had made an outdoor _________ with an electric lamp for the dog, assuming the dog was homeless. The _________ Charity was using to keep Butter warm obviously caught fire, and the doghouse was close to Charity’s home. _________, Butter ran to Charity’s bedroom window and started barking _________.

“He knew something wasn’t right and that someone needed to know it. He is a (n) _________ dog.” Charity said. His barking _________, waking up Charity in time for her to hear the sound of the window breaking because of the _________. “The fire just got big really fast.” Charity said. “It’s actually hard to believe how fast it happened.”

The family ran out of the house and were able to __________ the fire before the arrival of the firefighters. Owing to Butter’s __________ reaction, no one was hurt.

When the firefighters arrived, Butter was there to __________ them. “It was a really nice dog.” said firefighter Justin Stidham. “It came up and played with all of us. I was sitting there petting it. It was just as nice as it could be.”

A __________ of Justin with Butter went viral (走红). That’s when Charity learned Butter was not actually Butter. The dog’s original owners __________. Butter as Cooper, who had run away from home. Charity said she would give Cooper a steak for his good deed and take him back to his owners. She now believes that animals return the love people show them, especially so during a (n) __________.

3 . A woman and her dog walked through the airport, passing by dozens of people. Suddenly the dog _________ without making a sound, it sat like a statue and stared at a man carrying a suitcase.

The woman _________ the man carefully, waiting until he put down the suitcase. Then she shouted, “Police. Don’t make a move!” Other _________ moved in. They quickly _________ the suitcase. The man had been carrying a bomb in it! On the TV news that evening, the _________ was a hero. Thanks to this police dog, something terrible had been _________. Lucky, the police dog, had found the bomb in a way no human ever could. The dog had not _________ or heard the dangerous device inside the suitcase. _________, the animal had found it with its _________. Lucky had smelled the bomb.

A dog can sense odors (气味) that are thousands of times too __________ for people to smell. The part of a dog’s brain that deals with odors is much larger than that __________ part of the human brain. People depend on differences in __________ in order to tell things apart. A dog on the other hand, depends on differences in __________.

Everything and everyone has an odor. That’s why highly trained dogs are often used by the police to __________ people or find drugs. They have been taught to __________ specific smells. The animals’ sense of smell is so powerful that they can even tell if a person has recently touched a certain object.

Many of the different kinds of materials used in bombs give off exactly the same odor. A dog learns to search for it. If the dog finds a bomb, however, it must never __________ it. It must not let the person who is __________ the bomb know. Instead, the dog has been trained to __________. Police officers watch for this __________. Then, when the dog has finished __________ job, police can make their move.

4 . Italian shepherds are taking the lead in forest fire prevention, by leading their animals to eat the bush. Laws once _______ such practices are being changed, as rural communities begin taking a role in forest management.

In thinner forested areas, larger animals feeding on plants were found to be _______ in reducing forest fire risk. Smaller animals like goats and sheep are good for areas that lack natural predators (天敌). The eating _______ of these smaller animals make them perfect for _______   woody bushes. They also eat things which larger animals can’t digest.

Even though a forest might look like a place of natural beautiful, beauty, _______ it’s no longer a natural ecosystem. When climate change regulations limited the shepherd’s _______ to work in woodlands, it was part of a continent-wide effort to fight against deforestation. The effort worked well, with total forest _______ in Italy increasing by 75% since the 1960s. Natural numbers of red deer and other _______ animals have disappeared. Therefore the _______ of sheep and goats meant that nothing prevented woody bushes from dominating the land, turning small fires into ________ ones.

Meanwhile, shepherds decided to write letters asking the government to ________ their animals to graze within the woods again. They also hoped to carry out a ________ project of rural areas, where Italy’s worst wildfire within 40 years ________ its way from the mountain tops to the sea. Their plan was to bring in more shepherds to better control the fires and ________ eco-tourism in the area. It makes sense that those most invested in the forests’ ________ would be worthwhile to save them, which goes for both the shepherds and the animals.

5 . Last year in early summer, I was walking to my house when I saw two large birds standing in my yard. They didn’t seem to ______ me until I was right in front of them and then they ______ disappeared into the nearby bushes. I was quite excited by the ______ of two special birds making a nest (巢) in my yard.

A few weeks later, the birds ______ again. I found them crouching (蹲伏) beside a tree. As I ______ them, they stuck out their heads and made a croaking (嘶哑地叫) sound. I didn’t know why they were croaking at me until a short time later I made an amazing ______ there were two small birds ______ around happily.

As I inched towards the birds, ______ not to make sudden movements, they started their croaking again, putting their necks forward so they seemed ______ and more threatening.

The mother put the baby birds under her wings and carefully crouched down over them so her babies were well ______.

I was watching them with respect when I suddenly ______ and fell to the ground. The mother took this as a(n)______ and the father raced towards me, ______ his wings. to protect the mother and the baby birds.

I felt sorry to have disturbed them and left quickly. I am amazed by their ______ actions. Their parental love made them so courageous. It is hard not to show ______ for nature.

6 . Afroz Shah, a lawyer in Mumbai, hasn’t had a weekend off in four years. But he hasn’t spent this time preparing for _________.

His mission? Saving the world’s oceans from _________ pollution.

It’s a calling he found in 2015 after moving to a community in Mumbai called Versova Beach. He had played there as a child and was_________to see how much it had _________. The sand was no longer _________ because it was covered by a layer of garbage more than five feet thick — most of it plastic waste.

“The whole beach was like a_________of plastic,” he said. “It hurt me. The _________ mess.” What Shah had seen is part of a global environmental crisis. More than 8 million tons of plastic _________in the world’s oceans each year. It’s predicted that by 2050, there will be more plastic in the ocean than fish. “Plastic in the ocean is a _________. And the sea species have no choice at all, ” Shah said. “We are ______________ their habitats.”

In October 2015, Shah began ________________ up plastic waste from the beach every Sunday morning. At first, it was just him and a neighbor, and then he began calling on others to join in. Word ________________ and with the help from social media, more volunteers got ________________.

For Shah, the work has always been a ________________ journey, but it has earned global attention. After he was ________________ as a Champion of the Earth by the United Nations in 2016, Shah now devotes nearly all of his free time to this ________________.

He’s now spent 209 weekends on this mission, ________________ more than 200,000 volunteers, some of whom are young students, 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 beach as well as a stretch of the Mithi River and other regions of India.

“This world talks too much. I think we must talk ________________ and do action more, ” he said when interviewed by CNN in October 2019.“We are a smart species. Well adapt. We’ll learn. And with these youngsters rising up, I see ________________.”

7 . I used to think my life was perfect. My mom had her dream job and a beautiful office and I had my own room with a computer and a garden to look after. But one Sunday, everything changed. A hurricane _______ our neighborhood while we were visiting my grandparents in Raleigh. Our kitchen was ________, and our clean and comfortable home was in ruins.

But something ________ happened. Our neighbors, the Flores family, came to our ________. They helped clear broken pieces and offered us a place to stay. Their ________ was most impressive. We had never ________ spoken to them before, but they ________ their home to us and made us feel like family.

We started a new ________ of having weekend dinner together. We invited other families from the neighborhood to join us, and our ________ were filled with laughter and delicious food. It was a beautiful thing to see our ________ come together in the wake of a disaster.

I ________ knew Rosica, their daughter, before the hurricane. But she quickly became my friend. She had a gift for ________ and our evenings together were filled with adventure and laughter.

Looking back, I realize that the hurricane ________ unexpected benefit. It brought us closer to our neighbors and ________ our lives in ways we never could have imagined. Sometimes, it takes a(n) ________ to bring out the best in people.

8 . One morning, Ann’s neighbor Tracy found a lost dog wandering around the local elementary school. She asked Ann if she could keep an eye on the dog. Ann said that she could ________ it only for the day.

Tracy took photos of the dog and ________ 400 FOUND fliers, and put them in mailboxes. Meanwhile, Ann went to the dollar store and bought some pet supplies, ________ her two sons not to fall in love with the dog. At the time, Ann’s son Thomas was 10 years old, and Jack, who was ________ from a heart operation, was 21 years old.

Four days later Ann was ________ looking after the dog, whom they had started to call Riley. When she arrived home from work, the dog ________ itself against the screen door and barked ________ at her. As soon as she opened the door, Riley dashed into the boys’ room where Ann found Jack ________ from a heart attack. Riley ran over to Jack, but as soon as Ann bent over to help him the dog went ________.

“If it hadn’t come to ________ me, the doctor said Jack would have died,” Ann reported to a local newspaper. At this point, no one had called to claim the dog, so Ann decided to ________ it.

The next morning Tracy got a call. A man named Peter ________ his lost dog and called the number on the flier. Tracy started crying, and told him, “That dog ________ my friend’s son.” Peter drove to Ann’s house to ________ his dog, and saw that Thomas and Jack were ________ in the window. After a few moments Peter said, “Maybe Odie was supposed to find you, maybe you should keep it.”

9 . Luke is a cute dog, living together with me for five years. We get lots of_______in our area during the summer season. Many forests are badly_________by fires each year. That hot summer, not far from our shelter, a forest______________fire. It was July, and there had been a heat wave going on for three days.

Somehow, Luke rushed towards the forest. There was no longer any hope at that moment to wait for Luke to come back to the____________. In fact, I was waiting for firefighters to tell me that he had____________in the forest. Suddenly, a fireman burst into my office and____________me that Luke had succeeded in saving four cats who had been__________by the flames (火焰). I____________accompanied (陪伴) the fireman to the forest to get him back.___________we got to the scene of the event, we didn’t see Luke. Then we heard the________of a dog barking (吠) in the forest. I______________the barks was Luke’s. The firemen______________the tracks of the dog until they found him barking loudly by the side of an injured________. Thanks to Luke, four cats and a fireman were saved. This true story shows us that pets are loving and caring. We should love and__________them. Little animals can do__________things for humans.

10 . Many children may be fond of animals, but few ever think of making the study of animals as their career. Even _______ will be recognized by the whole world, enjoying the title of United Nations Messenger(使者) of Peace.

But one woman has _______ all that. She has lived with chimps in the African forest for many years and made great discoveries. Jane Goodall’s lifelong _______ in animals began at an early age.

By the age of 10 or 11, Goodall _______ going to Africa to live with animals. This was quite a strange dream in those days, as young girls didn’t think of having such “wild” actions. But she was _______ by her mother. She told her that if she really wanted something, she should work hard, take advantage of _______ and never give up looking for a way.

When a close friend invited Goodall to Kenya in 1957, she readily _______   it. Within a few months of her arrival, she met the famous anthropologist(人类学家) Dr Louis Leakey, who soon decided that Coodall was the _______ person he was looking for to begin a _______ of wild chimps on the shore of Lake Tanganyika in Tanzania.

In the beginning, studying the chimps was not easy for her. The animals fled(逃走) from her ________. With a strong ________ , she searched the forest every day, trying not to get too close to the chimps too soon. Gradually the chimps became used to her presence.

In October 1960, she observed a chimp making and using ________ to fish for termites(白蚁). This discovery threw ________ on the popular idea at the time that man was the world’s only toolmaker. The longer Goodall’s research continues, the more it becomes obvious that chimps are very ________ to humans.

Since the mid-1980s, Goodall has been lecturing around the world to raise people’s sense about environmental ________ . “Let’s live in the new age with hope, respect for all living things, understanding and love.” she said.