Shenzhen is a city in South China．It is not very big, but it has attracted people of the whole country and the whole world as well．

    Just about thirty years ago, it was only a small fishing village．There were not many people there． Most of them lived on fishing．Things have greatly changed since the 1980s．It became the first special economic zone(经济特区) in China．

    Because of the opening policy(政策), economic changes between China and the outside world have increased greatly．People can come and go easily between Shenzhen and Hong Kong．Both foreigners and Chinese have built a lot of factories, companies and tourists' attractions there．People all over the country have come to find jobs．Many of them have settled down in this new booming(兴起的) city．

    Shenzhen has been developing so fast that it has become a well－known metropolis(大都市) in China．

    You may know that more people drink coffee than tea around the world．And that, after oil, it is the second biggest traded commodity (商品)．You may also know that the drink comes from beans which are first roasted and then ground (研磨)．But what else do you know about this popular drink?

    It is said that the story of coffee started with an Ethiopian goatherd (牧羊人) named Kaldi．One day Kaldi was surprised to see that his goats were behaving very strangely．Instead of grazing (吃草) quietly, they were jumping around, almost dancing．He also noticed some red "cherries" from a plant that the goats were eating．He tried some himself and was surprised by the feeling of extreme happiness and excitement．He felt like dancing too !

    But it wasn't used as a drink at first．It was used as food．The coffee berries, mixed with animal fat, were used by monks to stay awake during long hours of prayer．From Ethiopia, coffee was later cultivated (培育) in Yemen and the first hot drink was developed there around AD 1000．Three centuries later Muslims were keen coffee drinkers and as Islam spread, so did coffee．Coffee houses appeared in Cairo and Mecca．

    For hundreds of years the plants were protected safely．But some beans were smuggled (偷运) out of Arabia and taken to India．In the 17th century, coffee was soon grown in a new continent．From India to Indonesia, a century later the beans were once again smuggled to Brazil．Brazil is now the largest coffee producer in the world．

    It was the caffeine that made the goats dance and kept the monks awake．Although it is found in other soft drinks and tea, coffee has the most caffeine．In the short term．a couple of cups of coffee can prevent fatigue and delay sleep．But several cups a day, every day, can cause anxiety and restlessness．

    Have you ever counted the number of digits (数字) in your mobile phone number? Your number has 11 digits. You may sometimes find it hard to remember your number. That's because China has the longest mobile phone numbers in the world. Why is that?

    The 11 digits can be divided into three parts. Each part has a different meaning. The first three numbers tell you which mobile phone service provider (提供者) you are using For example, 135 is for China Mobile Communications Corporation and 188 is for China Unicom. The fourth to the seventh digits tell you where the number is registered (注册). And the last four digits are random (随机的).

    The main reason for using 11 digits is that we have the largest population in the world. We once had 10 numbers. But as our population grew, there were not enough numbers for us to use. So we began to use 11 digits starting from 1999. Eleven digits can be used to make tens of billions of mobile phone numbers. That's enough for each person to have seven or eight phone numbers to use in China.

    And mobile phone numbers can be recycled. Usually, the service provider will reuse a canceled number after three to six months. If you call a number that you haven't contacted (联系) for a long time, you may find that its owner has changed.

    Besides China, Britain and Japan also use 11-digit mobile phone numbers. But their numbers always start with 0. So they cannot create as many numbers as we can. Countries like the United States, Australia and India use phone numbers with 10 digits. Canada's mobile phone numbers are perhaps the shortest in the world: they use seven digits.

    It's ten o'clock in the morning. It's raining heavily. The students of Class 3 are in the computer room. It's time for them to begin their computer lesson. Since the teacher hasn't arrived, the students are acting badly. Jenny is talking loudly and excitedly. Beside her, Tony is eating something. Mike is playing games on the computer and Mary is putting down her wet umbrella near the computer, which may be bad for the computer.

    Where is Emma? Oh, she is still on the way to the computer room.

    Rules of the Computer Room

Jenny:⑴{#blank#}1{#/blank#}

Tony:⑵{#blank#}2{#/blank#}

Mike:⑶{#blank#}3{#/blank#}

Emma:⑷{#blank#}4{#/blank#}

⑸{#blank#}5{#/blank#}

    Before you start your day, the following habits are good for you.

    {#blank#}1{#/blank#} Music can make you relaxed and is good for your health. Listening to music before work will bring you a relaxing day.

    {#blank#}2{#/blank#} The hot shower will help you to get a good stretch. The stretch will make you start the day feeling more relaxed.

    {#blank#}3{#/blank#} Breakfast is known as "the most important meal of the day". A balanced breakfast is important for every one of us. Be sure to have some milk and fruit.

    {#blank#}4{#/blank#} A morning walk can let you get ready for the day, help you sleep better at night and so on.

    {#blank#}5{#/blank#} Taking time to sit down and make a list of your activities for the day allows you to have a greater sense of orderliness.