Can dolphins talk ? They can't talk with words, but they talk with sounds. They show their feelings with sounds.

 Dolphinp travel in a group. We call a group of fish a“school". They don't study, but they travel together Dolphins are mammals, not fish, but they swim together in a school.

 Dolphins talk to the other dolphins in the school. They give information. They tell when they are happy or sad or afraid .They say "Welcome” when a dolphin comes back to the school. They talk when they play.

 They make a few sounds above water They make many more sounds under water. People cannot hear these sounds because the sounds are very, very high. Scientists make tapes of the sounds and study them.

 Sometimes people catch dolphins for a large aquarium. People can watch the dolplains in a show Dolphins don't like to be away from their school in an aquarium. They are sad.

 There are many stories about dolphins. They help people. Sometimes they save somebody's life. Dolphin meat is good, but people don't like to kill them. They say that dolphins bring good luck. Many people believe this.

    My name is Alice. I'm 13. I like sports very much. I have a basketball and a football at home. They are under my desk. I often(经常)play balls with my friends. I like vegetables. I often have tomatoes and carrots for lunch. I like ice-cream, too. My parents are doctors. They like watching soccer games on TV.

    Look! People are gathering to get water from a huge well in the village of Natwarghad in the western Indian state of Gujarat! ①Because of the large population on the earth, the world is ________hungry, it is ______be thirsty for water now. The world's population has reached 7 billion. And it could possible grow to 15 billion by the year 2100.

    ②On the other hand, about 97% of water on the earth is sea water which we can't drink or use for watering plants directly. Man can only drink or use the other 3% of fresh water which comes from rivers, lakes and underground. And we can't even use all of that, because some of them has been polluted.

    Now more water is needed. The problem is: can we avoid a serious water shortage later on? Firstly, we should all learn how to save water. Secondly, we should find out the ways to reuse it. Today, in most large cities water is used only once, but it can be used again .Even if every large city reuse its water, still there would not be enough. What could people turn to next?

    The sea seems to have the best answer. The sea is very big. Look at the map of the world, there is more sea than land. It covers three quarters of the earth. All that needs to be done is to get the salt out of the sea water. Scientists are trying to find a cheaper way of doing it. So you see,③如果我们可以找出解决方法，我们就不会有干涸（dry up）的危险。

 (C)

左栏是对五个人的信息介绍。右栏是七则留言。请将五个人的信息介绍和留言相匹配。

    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.