We can express thoughts and feelings and send sounds and pictures on our smart phones today. We also communicate by using programs like Skype and Face Time. We can't send tastes, smells or touch, of course. But scientists in Britain are trying to develop a way for smart phones to do just that.

    Adrian David Cheok is a professor at City University in London. He wants people to experience communication using all of their senses. He said "In the real world, we can open up the glass, open the window. We can touch, we can taste, we can smell in the real world."

    To give users a sense of taste, researchers designed two electrodes (电极）that are placed on the tongue. A chemical process creates different tastes through molecules (微粒)on the surface of the tongue. This chemical process sends electrical signals that convince the brain that a person is tasting something. They have already created sour, salty, sweet and bitter tastes.

    "You put these two silver electrodes in your mouth, you put your tongue in between and then it stimulates electrically your tongue and you get a virtual taste perception in your brain."

    A device(设备）called "Scentee" permits users to have the sense of smell. Scentee plugs into a smart phone and can spray tiny clouds of fragrances, including flowers, fruits and coffee. Professor Cheok says the person speaking can activate the device.

    Scentee holds a container with about 100 different smells. The container must be replaced when all the scents（pleasant smells) run out.

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    Many people think the camel stores water in its hump (驼峰), but it does not. Instead, the camel stores something else there—food. The camel's hump is really a hump of fat (脂肪). The camel is often called "a ship of the desert". When the camel is not travelling and is in a place where there is much food and water, it eats and drinks a lot. As it does so, its hump rises from the fat its body makes. Then, when the camel is travelling through the desert and when there is no food, it can live off the stored fat.

    A camel can go on for days or weeks with little food or water. However, when its hunger reaches the starvation (饿死)point, its hump shrinks (收缩) and may even slip off its back and hang down its side.

    Camels are not fussy (挑剔的) about what they eat. Thorny (多刺的) plants don't hurt their mouths, grass of any kind will do and so will hay, dry grain and cactuses (干草, 干粮, 仙人掌).

There are one­ hump camels and two­ hump camels. Camels with one hump are called Arabian camels. They come from North Africa. Camels with two humps are from Asia.

    Humans are going to the Moon for the first time since the last Apollo Mission( 飞行任务) in 1972, 45 years ago.

    SpaceX, a US space technology company, will send two people on a private trip around the moon. And they plan to make it happen in 2018, reported CBS News.

    The company didn't name the two people, how much they were paying or even their gender(性别). But they did say that the mission would use SpaceX's Falcon Heavy rocket and Dragon 2 spacecraft. Both of them are still in development(研发).

    The founder of the company Elon Musk mentioned that the trip would last about a week. "The plan is crazy." Mark Shelhamer, a former scientist from NASA said. "It's impossible to complete the mission. Getting to the moon is a lot more difficult than getting to the International Space Station." However, Musk believes that the trip will be a great success. The spacecraft will run on autopilot(自动驾驶) and the two space tourists will get hard training.

    "There is some risk there," Musk said. "But we'll do everything we can to minimize(将…减到最少) that risk."

The film YOLO （You Only Live Once） directed by Jia Ling, has become a great success recently. In the film, Jia plays Le Ying. {#blank#}1{#/blank#} One day, she meets a boxing coach, Hao Kun, and finds interest and hope in boxing training, which changes her life. The actress-director lost 50 kilograms, which became a hot topic on the Internet. 

After watching the film, many people make resolutions to lose weight. {#blank#}2{#/blank#} So how do you make sure you find a training center you like and make you feel comfortable? Here are some suggestions about how to choose a perfect one. 

Find a training center close to your home. 

You can walk to the training center to do some sports, or you can drive less than 15 minutes. If you can find a good place to park your car, your choice may be right. 

{#blank#}3{#/blank#}

No matter which training center you want to choose, you can know about it by reading what other people say about it. No one knows the training center better than the members. 

Visit a training center at your prime workout time （黄金锻炼时间）. 

Saturday afternoon may be the perfect hour to check out a training center. You can go and have a look at it. {#blank#}4{#/blank#}

Check for clean machines. 

Keeping things clean or not means the gym training center is good or bad. The professional staff should also be cleaning machines throughout the day. {#blank#}5{#/blank#} If not, try another training center.