It was rush hour on the morning of June 1 in the West Texas city of San Angelo. Heather Santellano, 36, was driving her white Mazda on Houston Harte Frontage Road with her nine-year-old daughter and ten-year-old son in the back. Suddenly, a red truck cut them off. Santellano turned the wheel hard to the right, sending the Mazda skidding off the road and down an embankment (路堤) that ended in a drop-off after about 50 feet. If the car didn't stop, it would fell onto the road some 20 feet below.

Then a bit of luck: As the car raced toward the edge, its undercarriage got stuck on the embankment shelf, stopping it cold.

The occupants, however, were far from safe. The car had come to rest on top of a retaining wall (护墙), hanging on the edge of disaster. One sudden move by anyone inside could send it over.

Jacob Rodriguez watched the scene from the truck-accessories company where he works. An experienced driver, he whispered a Navy word: “Ship, shipmates, self,” then he and four other men ran to the car. They jumped over onto the trunk (后备箱) to balance the weight as the terrified kids in the back seat watched.

Meanwhile, Julio Vasquez and his nephew, Marco Vasquez, were driving to their jobs at nearby Premier Auto-motive. Julio jumped out of the car to help while Marco went to the shop, grabbed a heavy-duty belt, and returned to the hanging car. He tied the Mazda to an F-350 truck that had been driven over by one of the other rescuers. With the car secured, the group carefully opened the back doors and helped the children out.

But when the children got out of the car, it lost its balance. And Santellano was still in the car. If nothing were not done immediately, the car would rolled down from the embankment and Santellano would be in danger.

Luckily, the men were still on the trunk.

The terrified children ran to their mother quickly as she got off the car.

If we happen to witness an accident, what should we do to save other people’s lives?

6 . As 17-year-old Torri’ell Norwood drove through Florida, last February, the laughter and chatter from the four teenage girls inside her car quickly gave way to screams. As they approached an intersection, another car T-boned them, sending their car sailing into the yard of a nearby home, coming to a stop only when it crashed into a tree.

As smoke rose from the car, a bystander shouted, “It’s about to explode! Get out!” Shaken, but otherwise OK, Norwood crawled out through the window as the driver’s side door couldn’t be opened. Along with two of her friends, who’d also managed to free themselves, she ran for her life. But halfway down the street, she realized that her best friend, Simmons, wasn’t with them. Norwood ran back and found Simmons unconscious in the back seat. She threw open the back door and pulled her friend out. She dragged Simmons a few feet to safety and laid her on the ground. After checking her pulse and found there was no sign of life, she started CPR.

Had the accident happened a few weeks earlier, she might not have known what to do. But just the day before, Norwood, who wanted to pursue a career in medicine, had earned her CPR certificate by learning on her own. Kneeling on the ground and looking down at her dying friend, Norwood knew she had precious little time to practice what she’d learned.

She started pumping Simmons’s chest with her interlocked fingers and breathing into her friend’s mouth in hopes of filling her lungs with the kiss of life. After quite a while, Simmons began coughing and taking quick deep breaths for air. The CPR had worked! Soon, the ambulance arrived and rushed Simmons to the hospital. And then she heard how her best friend had saved her life. “I wasn’t shocked,” Simmons told others. “She will always help any way she can.”

8 . An 80-year-old man and his family may soon get a bill for the cost of his rescue mission. After an all-night search by rescuers, James Clark of Dublin, Ohio, was found “not moving and exhibiting what appeared to be signs and symptoms on low nody temperature to the point of not being able to speak any clear words," according to a statement. Rescuers wrapped him in a sleeping bag and carried him out about 1.7 miles to safety.

Similarly, in 2015, a family of four received an about 8500 bill after their daytime hike left them lost in the dark and requiring search and rescue ( SAR). This raises an interesting question: Who pays for the cost when you get lost or injured in the great outdoors?

The high cost of SAR missions is what prompted states like New Hampshire to pass laws that establish programs like Hike Safe to hold individuals more financially accountable for their rescues. However, some people have called for more strict laws to shift SAR costs off taxpayers. They say such a move would ultimately make people more responsible, but it's a controversial idea. “Society rescues people all the time-auto accident victims, home fire victims-and at far greater cost than wildemess hiker rescues.” writes Backpacker.

Critics say putting a price tag on SAR could cause people to hesitate before calling for help in emergency situations. But Heggie says this isn't actually the reason why the National Park Service doesn't charge for SAR. “If an agency such as NPS starts charging the public for SAR costs, the agency essentially has to conduct SAR operations. If something goes wrong during the SAR operation, someone could lead to a lawsuit(起诉).”

Both Heggie and Kupper say the best way people can avoid needing rescue is simply by being prepared, suggesting that people research hikes before they go pay attention to their surroundings, pack essential gear and not rely on a cellphone as a survival kit. "The best time to prevent SAR incidents is when people are still at home，” Heggie said.

9 . Donnie Wiseman was worn out after work. But his son was _________ on going to a reptile show at Scales and Tails, Utah. So, after a short rest, he _________ his son to the show.

Inside viewing windows was the show’s star attraction, a huge alligator (短吻鳄). It swam around the pool before _________ its head on a two-foot-wide platform. It was feeding time, and the _________ alligator was staring expectantly at its trainer, Lindsay Bull.

For the sake of _________, Bull wanted the alligator off the platform before beginning the show. Entering the enclosure, she held out one arm and shouted “Back!” — a(n) _________ that usually worked. _________, this time the alligator responded by opening the jaw and _________ her into the pool of water.

Outside the enclosure, some _________ if this was part of the show. Not Wiseman. Sensing something was __________, he threw open the glass door and climbed inside. “Jump on its back and push your fists into the top of its nose!” shouted Bull. Wiseman did as he was __________, pressing down with all of his 180-pound body weight. Time seemed to stand __________ for a while. Finally, the alligator eased its __________ and Bull was quickly helped out of the enclosure. Meanwhile, Wiseman __________ a chance to jump off the alligator.

Apart from minor wounds, Wiseman was more __________ than injured. “One mistake and I’ll be a statistic, but still, I’m just glad I was there,” he said.