A black bear was in a dangerous situation when she fell off a 30-meter-high bridge. After a long day in California’s Sierra Nevada mountains, the bear probably thought she was taking a shortcut home. She was walking across the bridge when, suddenly, two cars entered from both sides. There was nowhere to run, so the frightened bear jumped and fell over the side.

Luckily, the bear pulled herself onto an arch (拱形门) under the bridge, but she was trapped (困住) there. A driver saw the unbelievable scene and called 911.Robert Brooks, an animal control officer from the nearby town, was sent to investigate. “I thought it was a joke.” he said. But it wasn’t a joke, so he called Dave Baker of the BEAR League-a group that helps bears in trouble.

Unfortunately, the sky was getting dark, so the volunteers had to wait. Early next morning, the two men returned to the bridge with more volunteers. Amazingly, the bear was still there. They needed to help her quickly. Baker had an idea-they should hang a net under the bear, push her into it, and then lower her to the ground.

Firefighters volunteered to lower the 100-kilogram bear once she was in the net. Police officers closed the road, and when the net arrived, it was hung under the bridge. Then, an animal control officer shot a dart (飞镖) containing a sleeping medicine into the bear’s shoulder. Ann Bryant，head of the BEAR League, stood under the bridge. When the bear was sleepy, Bryant shouted “OK, push!” A volunteer rock climber used his feet to push the bear off the arch, right into the middle of the net.

The bear was gently lowered to the ground

Imagine 50 years from now. Imagine the perfect school.

Getting to school is already difficult because of traffic. In 50 years time, it will be even difficult. A solution is needed. Imagine one big school in your city, a big cyber (网络) school, but the classes are in any different places. In fact there would be classes all around, both in the countryside and the city. You would never need to walk more than 10 minutes to get to school.

Once you get there, there is no teacher speaking at the front of the class. Instead, there is a large screen playing a video of the teacher. There is a classroom helper who walks around helping you with your problems. You can get the best teaching there, and you have a helper who can help you understand your work.

You listen to the teacher for only 15 minutes. Then you work in teams to do group projects and solve problems together. After classes finish, you can stay there and talk with your school friends.

Your class would always be cool in summer and warm in winter. There is solar (太阳能) and wind power on the roof of the building. Each room is kept at a comfortable temperature automatically.

Because your class is close to homes and businesses, you can take part in community life as part of your schooling. If you need to learn about measuring and weighing things, then you can go home and spend time in kitchen with your Mom!If you need to learn about adding and subtracting (减法), then you can spend time in a local shop.

The school of the future is high-tech, but it is a friendly place to be.

5 . We’ve all been there-starting at a book, hoping that what we study will stick in our mind. Many of us have probably wondered. “Is there any way to improve memory?” So, why don’t we look at what memory experts say about this?

Every student knows that it’s helpful to review what they’ve studied before. According to experts, we can learn things better if we wait some time before trying to study them again. They say that trying to remember something from your memory after you have had some to forget it will make it easier to remember in future.

Similarly, studies have shown that taking some time to just do nothing after studying might mean that you can remember things better afterwards. It is not clear why this happens. But some think it has to do with the relationship between long-term and short-term memory.

Another study tip is to change between different ideas. Now, connecting them to each other or to images (图像) is often considered a good way to remember something. A word champion Jonathan Hancock says how picturing pieces of information in different physical locations or connecting them to memorable images makes them easier to remember.

There are also more things that we can do to improve our memory. Hancock says that being generally organized makes things easier for your brain. Many other experts also suggest that we should get a lot of rest and exercise. So, the good news to take from this is that while it may be hard, improving our memory is something we can do.

10 . One evening I was running late for a meeting and I passed a friend in the hallway. My friend asked the daily ________ question, “How are you doing?” ________, rather than give the expected response, “Good, how about you?” I decided to ________ my dissatisfaction with traffic, people who can’t put down their cellphones at traffic lights, ________ vision in the rain and everything else about my ________ journey to work.

Instead of showing sympathy, my friend asked a challenging question, “What would have happened if your guardian angel hadn’t created those ________ ?” The inference (推断) was that I might have been ________ something much worse than being late for a meeting. My ________ reaction was to laugh and walk on, but later I began to ________ what he had asked. Over the next few days, the more I thought about this question, the more ________ I was able to see in it.

I thought about my ________ experiences as well as the things that had happened to me, and the seed he had planted started to grow. I remembered my uncle who was late for a flight and the flight he had ________ crashed down. I remembered when ________ kept me from accidents on the same road I was traveling on.

Ever since my friend gave me his advice in the form of a ________, I have become less stressed. Keeping the advice in mind makes me more ________ and has improved my life.