Red squirrels used to be a common sight in British forests and countryside. But there are fewer than 140,000 red squirrels left now and most of them are in Scotland. However, grey squirrels (introduced from North America) are now so common that many people dislike them. They can be legally（合法的）trapped and destroyed.

   On first sight, the two types of squirrel are similar. They both have a long tail, which helps the squirrel to balance when jumping from tree to tree, and the same large eyes, small ears and powerful back legs. However, the grey squirrel has a clear physical advantage over the red. The red squirrel has a head-and-body length of 19 to 23 centimeters, a tail length of 15 to 20 centimeters and a body weight of 250 to 340 grams. Compared to this, the grey squirrel is a larger animal. The head and body measures between 23 and 30 centimeters long and the tail is between 19 and 25 centimeters long. Adult grey squirrels are heavier, weighing between 400 and 600 grams. This size allows them to store more fat and helps them to survive a hard winter, which would be fatal（致命的）to their  smaller cousins .

So why are red squirrels losing out in competition with grey squirrels? Size is one factor, but there are others. Red squirrels live high up in trees, while grey squirrels spend more of their time on the ground. This means any loss of forests greatly influences the red squirrel population. Another reason for the grey squirrel's success is its ability to use food provided by people. Like the fox, the grey squirrel can survive in towns and cities. The other problem for the red squirrel is disease. Both squirrels carry a certain virus. While this doesn't seem to attack grey squirrels, it is fatal to red squirrels.

    WeChat, known as Weixin in China, is a mobile phone communication service which was developed after QQ by Tencent on January 21, 2011 in China. It is free to use and has been the most popular in China.

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    You can register(注册) WeChat with your phone number, and add your friends' numbers in your contact list. It works just like talking on QQ. You can send your pictures and share your feelings. And your friends are able to find them as soon as they get online. What's more, they can also give you their comments such as "   ".

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    It can send voice messages, text messages, pictures and videos. Different information could be sent to your friends. WeChat provides(提供) us with shopping, games, news, e-banks and so on. If you want to order a dinner in a restaurant, you can even pay for it by WeChat. In this way, it will help you save time and money.

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    WeChat is supported on Wifi, 2G, 3G and 4G, so you can chat with your family or friends in a new way but using your phone at a low price anytime and anywhere. Even though your friends stay abroad, they are still able to use WeChat to communicate with you and share their interesting experiences with you.

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    However, there are some dangers of WeChat. It is often reported that many traffic accidents are caused by careless drivers who can't help playing on WeChat while driving. And some bad guys even use WeChat to gamble(赌博), which breaks the law. Luckily, WeChat is improved now and then.

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    So it seems impossible that WeChat will be replaced in the near future. It is going to solve these difficulties and develop better and better.

    Joy always rides her bike to school. It's four miles to school and it takes her about fifteen minutes. Joy likes riding to school. She says it's good for her health.

    Edward usually goes to school by bus. He likes talking with his friends on the bus. It's about ten minutes' journey (旅程) to school by bus.

    Mary's home is near the school. She usually walks to school. It's about five minutes' walk. Mary says she likes taking walks after meal.

    My name is Bob. I am 16 years old now. I've felt lonely since I was 9. I didn't like my classmates, my parents or anyone else. My classmates didn't want to talk with me and my parents were always saying that other kids were better than me. One day I had a big fight with one of my classmates. I was so angry that I hit him on the face. Just at that moment, a boy stood up and stopped the fight. He was the monitor of our class.

    After that, he often helped me and we became good friends. Whenever I got angry or sad, he would help me to cool down. We spent a lot of interesting days together and became best friends. As time goes by, I have become happier with people and things. And it seems that people around me have changed, too.

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    Making the most of time is important in our life. Here are some tips that might be of help to you.

    Make a plan. You should make a plan every week. The plan includes things you want to finish. You should know what the most important ones are, and try your best to do them first.

    ⒈Control your stress. No matter what kind of stress you have, try to keep cool. When you have a lot of things to do, too much stress may make you slow. Don't work all day without breaks.

    ⒉Close your door. When working under a plan, do your important things with your door closed. This will give you a better-quality time.

    ⒊Focus on one thing at a time. Don't try to do many things at a time! You will lose your focus, and it will take you longer to finish your work.

    ⒋Just say "no". If you really don't have the time to help out, just say "no". You're only one person, and you can't save the world by yourself!

    ⒌Stop wasting time on the phone. While talking on the phone, keep your conversations short. In this way, you'll waste much less time.

    ⒍Relax. The most important thing is to take time to relax. Even if it's a 10-minute walk, get away from your work and get relaxed.