Many people go to school for an education. They learn languages, history, geography, physics, chemistry and mathematics. Others go to school to learn a skill so that they can make a living. School education is very important and useful. Yet no one can learn everything from school. A teacher，no matter how much he knows, cannot teach his students everything they want to know. The teacher's job is to show his students how to learn. He teaches them how to read and how to think. So much more is to be learned outside school by the students themselves.

    It is always more important to study by oneself than to memorize some facts or a formula(公式). It is actually quite easy to learn a certain fact in history or a formula in maths. But it is very difficult to use a formula in working out a maths problem. Great scientists, such as Einstein, Newton and Galileo didn't get everything from school. But they were all so successful. They invented so many things for mankind. The reason for their success is that they worked hard all their lives, wasting not a single moment. They would ask many questions as they read and they did thousands of experiments.

    Above all, they knew how to use their brains.

    Can you imagine walking into a gym and seeing dogs lifting weights or cats jogging? We're being a bit silly thinking of dogs and cats going to the gym, but we do have a reason. Just like human beings, pets that don't get enough exercise can become overweight.   
   Overweight pets can develop serious health problems just like we can. So, if you have a pet, part of being a good owner is making sure that your pet gets the right amount and kind of exercise.

    Before you start your pet on an exercise program, be sure to schedule a check-up for your pet and ask your veterinarian how much and what type of exercise your pet needs.

    Just like humans, pets need to be started out slowly. Over time, they will get fit and be able to exercise for longer periods of time. If you exercise alongside your pet, you'll benefit, too!

    Starting out, you might want to play with your pet for 15－20 minutes at a time. Gradually, you can turn those plays into several 30－minute walks or jogs each week. If your pet is especially active, you can extend them to an hour or longer.

    Of course, some pets, such as cats, may not be easy to take for a walk or a run. These pets still need exercise, though. Don't underestimate the value of energetic indoor play, such as games of chase, for these types of pets.

    As you start exercising with your pet, here are some things to keep in mind:

    Make sure your pet has plenty of water before, during, and after exercising.

    If you have older pets, don't push them as hard.

    Watch the heat! If you are outside, exercising with your pet will be best early in the morning or later in the day.

    Five million people visit Grand Canyon in the US every year. For the purpose of helping project Grand Canyon for your fellow visitors and future generations, please follow the guidelines below.

   Camping

    To project the park, camping is allowed only within permitted campgrounds. Permits are required for overnight camping at the North Rim. Advance booking can be received by mail. Please write: Information Center, P.O. Box 129, Grand Canyon, AZ 86023

    Fires

    Because of the extreme fire danger, campfires are not allowed except at Mather and Desert View campgrounds. Collection of firewood is not allowed either.

    Hiking

    Please stay on permitted paths. Otherwise you may destroy desert plants. Pack out what you pack in, so you leave no signs of your visit. It is important to keep in mind that you are in a national park where wildlife exists.

    Weather

    The weather at Grand Canyon can change very quickly. With so much rock, lightning causes a particular danger during sudden summer storms. These storms also frequently bring floods inside valleys, a danger to hikers. Watch the skies and check daily weather reports.

    Wildlife

    Do not feed park wildlife. There have been a few cases at Grand Canyon National Park where deer were purposely shot because they ate plastic bags that left them sick and weak. Hungry deer can be danger and have kicked and bitten visitors at Grand Canyon. Some other animals will also beg and bite. For your own safety and the well-being of the animals, please do not feed wildlife, no matter how gentle they may appear.

    Rescuers pulled out an eight-year-old girl alive from the ruins of a Taiwan apartment block on Monday more than 60 hours after it was destroyed by an earthquake, as the mayor of the southern city of Tainan warned the death toll could go beyond 100. The official death toll from the quake rose to 38, with more than 100 people missing.

    The girl, named as Lin Su-Chin, was conscious and had been taken to hospital. There were possibly two other people still alive in the destroyed building.

    The quake struck at about 4 am on Saturday at the beginning of the Lunar New Year holiday, with almost all the dead found in Tainan's destroyed Wei-guan Golden Dragon Building. Rescue efforts are focused on the ruins of the 17-story building, where more than 100 people are listed as missing and suspected to be buried deep under the ruins.

    Earlier a woman, identified as Tsao Wei-ling, was found alive lying under her dead husband. Their two-year-old son, who was also killed, was found lying nearby. Another survivor, a man named Li Tsung-tian, was pulled out later. Several hours later, Li's girlfriend was found dead in the rubble. Tsao and Li were both being treated in hospital.

    Rescuers continued to climb over the twisted（扭曲的） remain of the building as numb family members stood around, waiting for news of missing relatives. It's reported that 36 of the 38 dead were from the Wei-guan building, which was built in 1994.

    The mayor of Tainan said there needed to be a "general sorting out" of old buildings to make sure they were able to deal with disasters like earthquakes. A better job was also needed in ensuring building quality as well as building management in the near future.

    You don't need to get in a time-traveling machine to see how technology will reshape our lives, such as the way we shop. Several new technologies that are to change your buying habits already exist. Let's see what's waiting for your future shopping.

    Try it on, virtually(虚拟的). Want to shop online for a new pair of eyeglasses? You don't need to guess which pair looks best on you. Go and see the eBay Fashion iPhone app to try a pair of eyewear you're checking out on a picture of your face. But what if you want to buy something bigger? Thanks to Microsoft Kinect's motion tracking camera, you can cover clothes on your screen body. You can even choose the background of your virtual fitting room to enrich your shopping experience.

    Get a perfect, custom fit. Everyone's body is shaped differently. To get a perfect fit, you sometimes have to get your clothes changed. But by using 3D scanning(扫描) technology, all the clothes you buy will fit your body perfectly. Some companies scan your body using High-tech to get the most exact sizes, so they can make special clothes just for you.

    Experience high-tech shopping carts and checkout counters. High-tech shopping carts could, in time, be a common sight in malls and supermarkets. Microsoft Kinect-enabled carts are under test at present. The cart can follow you along the aisles (通道), controlled only by your movement and your voice. In China, a supermarket chain(连锁超市) introduced tablet-equipped carts that guide shoppers around the stores' aisles.

    In the United States, several supermarkets use a device(装置) called Scan It that gives buyers the freedom to scan goods on their own while they shop. While it's great not having to line up at a checkout counter, we wouldn't mind it if the store used Toshiba's new Object Recognition Scanner. The machine identifies(辨认) a product as soon as it's placed in front of a camera just by its shape and color, even if it has no bar code(条形码).