Steve, 21, was leading a small team into an abandoned(废弃的)mine near Paradise Pines, California. With him were his 19-year-old brother Allen, and a fishing friend, 32-year-old Bobby Erler.

After a couple of hours of exploring, Steve suddenly felt the earth give way under him. The drainage shaft(排水井)! His fingers clawed helplessly at the wet soil as he fell. He was falling into darkness, his body struggling against the walls of the shaft.

20 feet away, Allen heard a loud cry. “I’m climbing down,” he told Bobby.

With his torch(手电筒)under his arm, Allen slid rapidly down the pipe. “I’m coming, Steve!” he yelled several times. No answer.

As Allen slid towards the bottom of the mine shaft, he saw Steve floating face down in the water. He slipped his arms round Steve and patted him on the back. Water came out of Steve’s mouth continuously.

“I’m going to die, right?” Steve said in a weak voice.

“No way,” Allen said. “Bobby’s going for help.”

At 3: 20 pm, Bobby stepped through the door of the local fire station, a mile and a half from the top of the canyon(峡谷).“My friends. Trapped,” he said, out of breath. “Last Chance Mine. You have to hurry!”

One hundred miles away, Bob Trussell’s phone rang at 5 pm. Leader of the Lassen County Search and Rescue Team, Trussell, 44, had the only team in northern California trained to lead mine rescues. “I’ll pull together my team,” he said, “but it’ll take some time to get there.” An hour later, he was leading a line of six trucks towards Paradise Pines.

Suddenly, Steve fell unconscious(不省人事的). Allen wondered how long they could hold on.

3 . A hero sheep dog became the guiding light of hope for three trapped sheep as it swam across dangerous flooded fields to _________ them to safety.

Llyr Derwydd, a 44-year-old farmer coming from the area of Ruthin, _________ himself in a dangerous situation on a Friday afternoon. While _________ his sheep in Flints hire as usual, he realized a sad fact — three sheep were helplessly trapped on a small piece of land within the field, cut off by the _________ .

Considering the dangerous conditions that the flood caused, the _________ required a special hero. In this serious moment, _________ that hero was none other than the quick-thinking sheep dog, Patsy.

Mr. Derwydd talked about the sad experience, stating, “We realized we needed to act _________to ensure the safety of the trapped sheep. The piece of land they were on was _________ very fast, and the great danger was increasing.”

In order to rescue the sheep, he made a _________. With a sense of urgency (紧急) in the air, he wondered whether Patsy, his clever sheep dog, would deal with the problem. A silent __________was made, and Patsy, with strong determination, took a brave try.

It was a moment filled with __________ , as the true depth of the water remained unknown. Yet, Patsy’s born swimming __________ and strong determination pushed her forward. Without hesitation (犹豫), she braved the dangerous waters to __________ the trapped sheep.

Mr. Derwydd shared his __________ , saying, “I knew she was a good swimmer, or I wouldn’t take the __________. However, I was quite surprised by her courage and skill.”

4 . Benefits of Walking in Cold Weather

As winter blankets the world in a coat of ice and fresh cold air, the idea of going outdoors fora walk might seem less attractive.     1     Walking in cold weather comes with a lot of health benefits that might just make it the perfect season to put on your shoes and hit the roadway.

Strengthened Immune System

Remaining in colder temperatures can actually improve your immune (免疫的) system. As your body adapts to the cold, it produces more white blood cells.     2     Regular cold-weather walks might help make a strong er immune reaction, letting you stay healthier throughout the winter season.

High Spirits

The winter blues, also known as Seasonal Affective Disorder (SAD), can affect many individuals during the colder months. Fortunately, walking in cold weather has been linked to improved emotion and reduced signs of sadness. The fresh air and physical activity inspire the production of endorphins, the body’s natural emotion enhancers (增强剂).     3    

Improved health and energy level

Cold-weather walking can provide an excellent heart workout. The combination of light movement and the body’s reaction to the cold increases heart health by improving circulation (血液循环) and lowering blood pressure. Over time, this can make your blood system healthier.

    4     Instead, walking in the fresh air can make your senses energetic and increase overall energy levels. The physical activity and stay in natural light work together to reduce feelings of tiredness, leaving you feeling more active and ready to deal with the day.

So, as the winter winds blow and snowflakes fall, consider wearing your warm clothes and taking a walk outside.     5     It is also helpful to mental wellbeing and overall energy.

5 . Google says an AI-powered system it created is helping improve traffic flow in major cities. The system, called Project Green Light, is now in use in 12 cities. The project aims to save energy and reduce air pollution, or emissions (排放量), from cars.

Google first announced the program in 2021, when it was testing the system in four areas of Britain. Since then, the company has kept increasing Project Green Light. Among cities now taking part in the program are Bangalore, Budapest, Jakarta, Manchester, Haifa, Hamburg, Rio de Janeiro, and Seattle.

In an online announcement, Google’s Yossi Matias explained the latest progress. He noted that the system is being tested in areas with serious traffic problems. Generally, this is at major crossings with heavy traffic and complex traffic lights. These areas where vehicles start and stop are known as crossroads.

The company said research has shown that at such crossroads, car emissions can be 29 times higher than on open roads. In addition, Google’s own research found that vehicles that must stop and start account for about half of those emissions.

Project Green Light uses individual (个人的) driver data from Google Maps. This data is connected with AI methods to produce models of each crossroads where the system is in place, the company says. The data from Google Maps is also used to create another model on how different traffic lights interact (相互作用).

The modeling process for crossroads considers several things. These include the structure of streets, traffic conditions, signal scheduling and how the vehicles interact with lights.

The models are used to reduce stop and start times and save more driving time, a process called optimization (最优化). Google says one goal is to improve several crossroads at the same time to create “waves of green lights” for vehicles on the road.

7 . Group Visits and Tours

The Museum of Fine Arts Houston(MFAH) welcomes groups to experience the Museum’s collections and exhibitions. Discounts (折扣) for self-guided group visits and expert-guide d group tours are there for those who book 10 or more tickets.

From the great art collections of the Museum of Fine Arts Houston—with objects crossing the world and human creative history—to the ever-changing schedule of thematic exhibitions, the Museum offers a lot of tour topics to suit your interests. Visit as a self-guided group, and you and your guests can explore at your own pace. For a deeper exploration into the galleries, request (要求) an expert-guided tour.

Policy

The Museum offers tours and packages to groups of 10 or more for the Museum’s collections and selected exhibitions. Membership benefits and free individual admission may not be used at the same time with school or group visits. Tours led by guides who don’t work in the Museum are not allowed; please contact groupsales@mfah.org in advance of your visit for all tour requests.

Reservations

For price information, contact groupsales@mfah.org or 713-639-7878. To make a reservation (预定) request, complete the group visit request form. At least one-week advance notice is needed for self-guided visits and two weeks for expert-guided tours. Reservations are confirmed with an order number and decided by advance payment.

Looking for school tours? Find information here or email schooltours@mfah.org with your questions.

Main address: 1001 Bissonnet, Houston, Texas 77005

MFAH Information Line: 713-639-7300

Many young people wants     1     (become) great athletes. They exercise and lift weights in the gym. But the fact is that they don’t become stronger,     2     makes them unhappy.

Therefore, some of them are considering     3     (take) pills, which they think will help them become     4     (strong) than before. However, the truth is that these pills usually have some unintended side     5     (effect). Some of them may even affect     6     (they) liver or heart.     7     fact, some great athletes such as Griffith Joyner, died very young because they     8     (take) some pills.

For the above reasons, I suggest that young people be     9     (care) not to take pills.     10     best way to become stronger is going to a gym to work out.