With the development of technology, WiFi is becoming more and more popular and important in people's daily life. But have you ever experienced it? Just imagine what life will be like if there is no Internet. Maybe you won't be able to talk with friends, play video games or search for information for your homework on the Internet.

    But in fact, only one third of the world's population are able to get information on the Internet. The rest are too poor to buy WiFi access(使用权) or they live in remote areas. As a result, they live without the Internet.

    Google and Facebook, two world-famous technology companies, have decided to do something about it. Google's Project Loon will try to send balloons which are 15 meters wide into our Earth's stratosphere (平流层) in 2015. The balloons are made of a special material that is three times thicker than the plastic bag we use every day. Each balloon will carry a minicomputer and a WiFi radio. The WiFi radio will send the Internet over the areas it is floating over. Then people can get up-to-date information on weather or news.

    Is your TV connected to the Internet? What about your chair, or your fridge? Probably they are not. But in the future, most things in your home may be connected, thanks to the so-called “Internet of things”.

    The Internet of things may be coming sooner than you think. Earlier this year, Samsung CEO spent a lot of time talking about the Internet things. He said that four years from now, every Samsung product will be part of the Internet of things, no matter whether it's a remote control or a washing machine.

    So, how do household objects that are part of the Internet of things work? Well, think of a common chair. When connected to the Internet, the chair warms up when it knows the user has just walked into the room and is feeling cold.

    An Internet-connected camera could help people feel safer in their homes. It can know people's faces and has an infrared sensor（红外传感器), so even if it's dark it can see when someone passes by and send you a message on your smartphone to let you know who's there. If the person is someone you don't know, it can tell you that, too.

    But according to MIT Technology Review, whether companies are connecting dog food bowls or security（安全）systems to the Internet, there may be some problems. For example, many early connected-home objects don't have much built-in security, which means they could be hacked. Moreover, it could be difficult to get these new machines to work together especially when they are made by different companies. To fight this, many companies have joined the Open Interconnect Consortium, which had 45 members by late 2015.

    So, picture this: you enter your home.The temperature changes to make you feel comfortable. Your favorite music starts playing for you. Do you think that this would be a good thing? It may happen sooner than you think.

    Everyone has got two personalities (性格)—the one that is shown to the world and the other that is secret and real. You don't show your secret personality when you're awake because you can control yourself, but when you're asleep, your sleeping position shows the real you. In a normal night, of course, you often change your sleeping positions. The important position that best shows your secret personality is the one that you go to sleep.

    If you go to sleep on your back, you're a very open person. You normally trust people and you are easily influenced by new ideas. You don't like to make people unhappy, so you never express your real feelings. You're quite shy and you aren't very confident.

    If you sleep on your stomach, you are a person who likes to keep secrets. You worry a lot and you're always easily becoming sad. You never want to change your ideas, but you are satisfied with your life the way it is. You usually live for today not for tomorrow.

    If you sleep on curled up (蜷缩) , you are probably a very nervous person. You have a low opinion of yourself and often protect yourself from being hurt, so you are very defensive. You're shy and you don't usually like meeting people. You like to be on your own.

    If you sleep on your side, you have usually got a well-balanced (平衡的) personality. You know your strengths and weaknesses. You're usually careful. You have a confident personality. You sometimes feel worried, but you don't often get unhappy. You always say what you think, even if it makes people angry.

    I am a little lion. My name is Nancy. I have a big head. I'm yellow. But my favorite colour is green. I like living in the forest. I like to eat little animals. But I live in the zoo now. I don't like the zoo. I get up in the cage（笼子） in the morning. I have breakfast, lunch and dinner in the cage. I go to bed in the cage in the evening, too. People watch me every day. Some boys hit（打） me with stones（石头）. I don't like them. They are not my friends. I can't go out. I want to go back to my friends in the forest. I want to live with them.

    All pets' owners know that pets use their body language to communicate with us. Since they live much simpler lives than we do, they depend on us and they need to express their needs to us. For example, cats do this with their ears, bodies and sounds. Sometimes they simply want our attention, while other times, they are telling us" My food is empty."

    I have one cat. He tells me different things. For example, when his food bowl is empty, he lets out a howl(长嚎). When he is hungry and doesn't find food to cat, he climbs onto my table and walks on it.

Now research shows that 67% of people think they understand what their pets want or need. The more we show our understanding of what they are telling us, the better our pets will be able to communicate with us. Try to pay close attention to what your pet is "telling" you and you will find it is eager (渴望) to "talk" to you.

    Have you ever had trouble sleeping in a new place? Lots of people do. And now researchers from Brown University in Rhode Island think they know why. They found that one-half of the brain "remains more awake" than the other half when people are trying to sleep in a new place.

    The sleep findings were reported in Current Biology by Brown University. In their report, the researchers said many people report that they have a harder time sleeping the first night at a hotel or other places outside their home. They call it "first-night influence". "In Japan they say, 'If you change your bed, you can't sleep,'" said Yuka Sasaki, one of the report's writers. "You don't sleep very well in a new place. We all know about it."

    The researchers measured brain waves (测量脑波) for 35 volunteers over two nights in a laboratory. The two nights were a week apart(间隔).They found during the first night the left half of the brain was more active than the right half. This was during the first deep-sleep period, the researchers said.

    Sasaki said a lot of questions remain.

    Researchers did not keep measuring brain waves all night long. So, they don't know if the left half keeps "watch" all night, or whether it" works in shifts (轮换) with the right half later in the night" .They also do not know why the brain activity, at least during the first period of deep sleep, is always on the left half.

    For some, this research may be calming. It is good to know that our brain is "looking out for us" in a new place. But it may not help with sleep. That brain activity, at least according to this new research, makes it harder to get the sleep people need to wake up well rested in the morning.