There are many ways for us to reduce waste. For example, we can reuse paper and plastic bags. We can also recycle newspapers, glass, and cans (易拉罐) make new things. Here are some useful ways to reduce waste.

    ◆Write on both sides of paper. Many people write on only one side of their paper. Why not stop wasting the other side? Some students only use half the pages of their notebooks before getting new ones. Try to use up all the paper. People often give cards on birthdays or festivals. How about trying to send e-cards instead?

    ◆Don' t throw away your old batteries. Maybe you do not know that old batteries make the Earth dirty. This is because they have poisonous parts. So, don't throw away batteries. Keep them together. Try to use rechargeable (可充电的) batteries for your game machines and CD players.

    ◆Donate (捐赠) all your unwanted clothes. There are many poor families in China, You may ask your mother to collect your unwanted clothes. Then you can pass them on to those poor children who do not have clothes to wear. You will feel happy that you are helping someone else. Also, you can ask if your friends or relatives want them before throwing them away.

A pop singer has to work very hard to become popular. He must give the public what they really want and need, or he must find a new way of singing that will a {#blank#}1{#/blank#} their attention. Even when he has succeeded and his records are sold e{#blank#}2{#/blank#}, he can not rest. Then he must work h {#blank#}3{#/blank#} than ever to remain popular, because there are always younger singers trying to become famous and to steal some of the popularity.

The life of a successful pop singer isn't e {#blank#}4{#/blank#} at all. He can only relax when he is alone, because everything he does is watched and reported by the special newspaper written for the fans. The fans are the most i {#blank#}5{#/blank#} people in the world for the singer. They buy his records, they go to his concert, and they make him rich and famous. But they can be very d{#blank#}6{#/blank#}  , too. Sometimes they do anything to get a souvenir (n. 纪念品). They steal handkerchiefs, they tear off buttons，and they even cut off pieces of the unlucky singer's hair. Many singers have been forced to ride(v.即兴表演). A pop singer has to spend a lot of money on clothes b{#blank#}7{#/blank#} he must always look special and different. And most important, he must always keeping smiling.

    Don't be too surprised if you see a car going down the road without a driver in Beijing these days. {#blank#}1{#/blank#}Last month, Baidu began to test its self-driving cars on open roads in Beijing.

    {#blank#}2{#/blank#}Since then, companies like Tesla, Uber and Baidu have been working to produce and test their own self—driving cars.

    Self-driving cars are safer than regular cars. {#blank#}3{#/blank#}They can remove the stress of driving and allow disabled or blind people to get around more easily.

    {#blank#}4{#/blank#}In one test, researchers pointed a laser pointer (激光棒) at the car's sensors (传感器) while it was moving. The car mistakenly thought that the laser beam was in its way and slowed down or changed the direction.

    The software that is used to direct the cars may not be safe enough. {#blank#}5{#/blank#}When we use our computers or smartphones, they sometimes crash (崩溃) without any reason. But if this happened to a self-driving car, the result could be deadly. Improvements to the software could be a solution to this problem.

In the eyes of many foreigners, Chinese are the best hosts and the worst guests in the world. They're not really bad guests but because the guest-host relationship in China is much different than in some Western countries it appears they are not nice guests. And Western guests sometimes look rude in the eyes of Chinese guests.  

　　In China guests are almost like gods. Whenever I enter a Chinese person's home there is always fruit on the table for me and someone is quick to bring me a cup of tea or water. In the West generally the guest is not a god. Acting according to the host's way of doing things is usual behaviour for a guest. 

　　My wife's mother is a very kind elderly Chinese lady who doesn't smoke. When I see some of her guests smoking in her house, as a non-smoker I feel unhappy. Usually I want to stop them directly but I must realize that she must not do that. In most North America homes if you are a guest and the hosts are not smokers, you should not smoke in their house. At the very least you could ask "Is it OK if I smoke?" But don't be surprised if they say "No, you can't smoke." In our culture if you smoke in their home you are a bad guest, but if they don't allow you to smoke in their house they are not a rude guest.

　　Guests in China also have special habits. Some Western people may not adapt to these habits very soon. Thankfully my wife is Chinese so whenever we visit a Chinese family she tells me to buy them a gift. However giving a gift to a host is not always necessary in my country. So if you invite international guests to your home don't be too surprised if they don't bring you a gift. 

　　In China you probably won't need to change the guest-host relationship very much because you will probably only be the host and Chinese are naturally very good hosts. If Western hosts invite you to their house, try not to be too surprised if their style of treating you is not what you have expected.

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Are home robots a good idea?

As society develops, more and more families use home robots in their daily lives. Is it a good idea? 

Are you interested in robots? If so, try out robot Little Q at our science center from August Ist to August 6th. Little Q is a cute robot with a round head, two big eyes and two long legs. It's like a big toy that our children will love.