1 . A four-year-old dog named Kob became a hero in its neighborhood by discovering a possibly life-threatening gas leak (泄漏) in its owner’s front yard.

This dog’s actions not only _______ its surroundings, but also stressed the importance of the behavior of our furry friends.

The story began when Kob, _______ by 28-year-old Chanell Bell, started digging a large hole in the yard. At first, Bell thought this was typical dog _______, but as the hole grew larger, she became _______. Recognizing that Kob’s actions were unusual, she trusted the dog’s judgment, considering its normally well-behaved nature.

After _______ a recent gas leak in her home, Chanel _______ a gas detecting (探测) tool. She followed her sense and chose to use the tool to _______ the newly dug hole by Kob.

Finding gas coming out of the hole, Bell _______ contacted the authorities about the issue.

“If it wasn’t found, the _______ would have continued to escape into our homes,” Bell said. “We were told it could have caused ________ health effects like breathing issues, brain damage, and even ________. They told me that something as simple as ________ a light could have caused a burst!”

During the repairs, workers ________three main gas leaks in Bell’s neighborhood caused by aging ________. It took the workers over three days to repair the leaks and replace the old equipment.

Throughout the repairs, the workers________ Kob for saving the neighborhood.

4 . Leah Brown aged 36 fell several hundred feet from Oregon’s highest mountain right before the eyes of a group of volunteer rescue workers who rushed to her aid and helped save her life.

The woman was coming down a popular path (小路) on Mt. Hood, about 70 miles east of Portland, on Saturday morning, according to the local police. Mt. Hood is the highest in Oregon, standing at around11.240 feet.

The fall was seen by members of Portland Mountain Rescue (PMR), a volunteer organization focused on helping people in mountainous areas. The group called 911 and rushed to the woman, providing medical care. They helped keep the woman warm for seven hours as the police worked to get her off the mountain safely. Finally, the woman was evacuated (转移) to a parking lot at 9:30 pm and taken to a hospital.

The climber, Leah Brown, said she didn’t know what caused her fall. “I can only guess it was either an ice tool or a crampon (冰爪) that didn’t land and stick like it should have, so I became detached from the mountain,” Brown said. “The thing I’d like to most stress is my appreciation for the members of PMR who evacuated me and took good care of me the whole time,” Brown added. “They saved my life. ”

In a statement after the rescue, PMR warned of the dangerous winter conditions at the mountain. “The short days and lower temperatures mean that the snow tends to be very hard and icy, and the conditions tend to be much steeper. Climbing the mountain in icy conditions is much more difficult,” the group said.

In a heartwarming event that has touched the nation, a police officer in Warren, Michigan, was considered as a true hero by saving the life of an 18-month-old boy who had suddenly stopped breathing. This event happened on the evening of August 29 and has since touched the hearts of many.

Officer Brandan Fraser was on duty, focusing on speed and absent-minded driving, when he noticed a car speeding past him. What in the beginning seemed like a common traffic violation (违规) rapidly turned into a life-and-death crisis.

As Fraser came up to the car, he was met with a sad cry from a woman, who screamed, “We got a baby in here dying. Help! Help!” Both the woman and the man in the car were frightened as they handed over the baby boy, who appeared to be lifeless, not breathing and turning blue.

Rather than giving in to the pressure of the moment, Fraser immediately sprang into action. He examined the baby and doubted that he might be choking (窒息). Fraser quickly positioned the baby on his forearm and performed a series of back blows to force any obstruction (阻塞物) from the baby’s airway out.

However, the baby still showed no signs of breathing. Fraser’s heart raced, but his training kicked in here. After making sure the baby’s airway was clear, he then continued to perform CPR on the baby. His hands pressed the baby’s tiny chest and at the same time, he blew some air into the baby’s mouth to help make his heart beat again. Fraser continued these life-saving efforts tirelessly, knowing that every second counted.

Surprisingly, the baby began to breathe once more. Fraser described the moment, saying, “The baby started breathing, and you saw that color started coming back around his lips. You realized that something happened here, and we were heading in the right direction.”

After a while, the baby gave out a cry, a sign that life was returning.

Then the baby was quickly transported to a nearby hospital.

8 . Last Sunday, I was standing still and watching traffic, so I could cross the road. Traffic was coming from the right side. When I saw it was _______ , I moved just a step forward.

All of a sudden, an electric bicycle driver came from the left side. A part of the electric bicycle _______ my right leg. Luckily, he came from the left side. It is the_______ side, so he had to drive against oncoming traffic, which was why he was driving_______.

I had open bleeding wounds. The driver drove me to a nearby_______ to buy cotton bandage (绷带) and alcohol wipes.

The driver tried to _______ what I bought, but I did not agree. Letting him pay may_______ sad feelings in him and make him feel guilty (愧疚的) as well. I told him not to_______.

Nothing in this world happens without a _______. Whatever bad thing happens to us is the effect of our past ________. I will treat this accident as a(n) ________ and be more careful when going out.

I came to the hospital later and visited my doctor, who ________ me carefully and fixed the wounds with bandage. He also gave me some ________ , so that I could better deal with the wounds at home.

The driver did hit me, but I didn’t think it would be a big problem, about which the doctor ________ . I thank myself for helping me to stay________ and forgive (原谅) the driver.

9 . In 1840, Chicago was a small town of forty-five hundred souls. It ranked 92nd in population in the United States. Yet, only three decades later, by 1870 — just a year before the great fire — Chicago was closing in on a population of 300,000, making it the fifth-biggest city in America and the fastest-growing city in the world.

What led to all this rapid growth? In three words: location, location, location.

“Chicago was near the center of the country, and near where the waterways and railways met,” city historian Tim Samuelson notes. “It was a perfect place for anything and anyone to get anywhere...”

Timing had a lot to do with it, too. America was moving from a rural to an industrial power. Chicago was right in the middle of the action. Ironically, its rapid growth was almost its undoing. “Chicago had to build, and build quickly, and so they built it out of wood,” explained Sarah Marcus of the Chicago History Museum. “It was quick, it was easy, and it was cheap.”

And, as it turned out, very “easy” to catch fire.

By most accounts, the fire started on the city’s West Side, near the De Koven Street barn of Patrick and Catherine O’Leary. No one is sure of the cause, but it could have been anything, from vandals (故意) to a drunken neighbor to that clumsy cow of urban legend.

Within minutes, the fire got out of control, tearing through Chicago’s business district. The fire was so hot, it created its own tornado of flame. By 3:30 a.m., all hope of saving large parts of the city was gone. Nearly 30 hours later, the fire finally died. The reason? There was nothing left to burn.

The losses were shocking: The fire took away nearly 300 lives, destroyed over 17,000 buildings covering almost 3.5 square miles, and caused damage of over $200 million—about 3.8 billion today. Roughly a third of the city lay in ruins, and one out every three people living in Chicago — nearly 100,000 residents — became homeless overnight.