Humans like to live and work in groups. Language is the “cement”(胶合剂){#blank#}1{#/blank#}holds these groups together. Language is part of culture. Culture, in this sense{#blank#}2{#/blank#}(mean)all those customs, skills, and attitudes that are part of the behavior of a {#blank#}3{#/blank#}(particularly) group. What you think {#blank#}4{#/blank#}what you want in life are all affected by the culture of the group in which you{#blank#}5{#/blank#} (raise). Groups of people live in different ways. They may have different skills, organizations, and art forms. Their family life may be completely different from yours.

    Human beings are inventive animals. They can decide to change their cultures in order to meet various{#blank#}6{#/blank#}(situation). Of all living things, human beings are the  {#blank#}7{#/blank#}(clever). They can choose {#blank#}8{#/blank#}(live)in many environments and in a wide variety of ways. Only human beings can choose where and how they want to live and then improve the physical environment to help{#blank#}9{#/blank#} (they)realize these choices. Acquiring the wisdom to make wise choices {#blank#}10{#/blank#}(be) the lasting challenge of being human.

    When China's astronaut Zhai Zhigang carried out the spacewalk on September 27, he was wearing a spacesuit developed by Chinese scientists. Being worth more than 30 million yuan, the Feitian (飞天) spacesuit is not {#blank#}1{#/blank#}ordinary one.

    It {#blank#}2{#/blank#}（take）Chinese scientists four years to develop it. But what is special about the suit? First Let's take a look at why{#blank#}3{#/blank#}（astronaut） need to wear spacesuits.

    When you visit a world with little or no atmosphere, not{#blank#}4{#/blank#}(wear) a spacesuit, the following things would happen:

    You would become unconscious within 15 seconds because there is no oxygen.

    Your blood and body fluids(液体) would “boil” and then “freeze” {#blank#}5{#/blank#} there is little or no air pressure.

    You would receive various types of radiation.

    You could{#blank#}6{#/blank#}(hit) by dust or rock that moves at high speeds.

So, to protect you{#blank#}7{#/blank#}these dangers, a spacesuit must:

    Have a pressurized atmosphere;

    Give you oxygen;

    Keep a(n) {#blank#}8{#/blank#}(comfort) temperature;

    Let you see clearly and move easily.

    The Feitian suit did all that and what it {#blank#}9{#/blank#}（do）made it like a mini-spaceship in{#blank#}10{#/blank#}the astronaut stayed alive in outer space and carried out tasks.

    Chinese are the first people to have tea. One thousand and two hundred years ago，Lu Yu wrote a book called “The Classic of Tea”{#blank#}1{#/blank#} is honored as “The Bible of Tea”. The book gives a detailed {#blank#}2{#/blank#}(explain) of the origin, the processing skills and the classification of tea.

    However, Chinese tea culture goes far beyond tea {#blank#}3{#/blank#} (it). Take green tea for instance，the ideal temperature of the water should be around 80 degree Celsius. If the water is too hot, nutrients in the tea{#blank#}4{#/blank#}(destroy). On the other hand, if the water is not hot enough, the tea{#blank#}5{#/blank#} (leaf) won't open up and you will miss the pleasantly fresh flavor. So Chinese people are used{#blank#}6{#/blank#} drinking hot tea. When you visit a Chinese friend，your friend will {#blank#}7{#/blank#}(constant) add hot water to your empty cup of tea. It is polite{#blank#}8{#/blank#} (offer) the tea cup to guests with both hands. Of course, the guests should pay respect as well,{#blank#}9{#/blank#} (take) the cup with both hands.

    Talking about adding water to the tea cup, there is{#blank#}10{#/blank#}saying: wine full, full cup. Tea half, half cup. For wine, the full cup symbolizes whole heartiness. For tea, the half cup means modesty.

    Two ladies living in opposite apartments say "hello" when they meet each other in the corridor. One of them says, "I moved here five years ago, {#blank#}1{#/blank#} I never met you before. Could I ask your name please?" The other says, "I {#blank#}2{#/blank#}(be) here for six years. How should I call you?"

    It seems very ridiculous {#blank#}3{#/blank#} people living so near don't know each other for such a long time. However, you can find this kind of story {#blank#}4{#/blank#} (perform) everywhere. It is the exact {#blank#}5{#/blank#} (reflect) of interpersonal relationships in the modern world. In the modern world most people live in apartments. They close their doors and never go out as soon as they get home from work. If they live alone, they will kill their time {#blank#}6{#/blank#}watching TV or reading magazines. They don't have any connections even with their {#blank#}7{#/blank#}(close) neighbors, who seem no different from people they meet every day in {#blank#}8{#/blank#} street.

    This phenomenon is no good to us, nor to our society. People will feel more and more lonely. The world becomes so indifferent. It's time that we {#blank#}9{#/blank#} (take) some measures to improve it. People living in the same place can {#blank#}10{#/blank#} (organize) to have some activities. We should call on people to be friendly to each other.

    A Florida boy who called 911 because he was lonely has now made friends with a kind-hearted police officer.

    Tallahassee police officer Joe White responded {#blank#}1{#/blank#} a call made by a six-year-old boy. While there {#blank#}2{#/blank#} no emergency at the house, White said the child was upset and told him he was lonely.

    "It took Officer White some time {#blank#}3{#/blank#}(explain) how 911 is used and how it's for emergencies," read a post on the Tallahassee Police Department's Facebook page. "Then Officer White said he'd always to be a friend!"

    In addition to {#blank#}4{#/blank#}(give) the child a lesson on the proper use of 911, White gave the child a stuffed animal and let him sit in his car.

    Since the heart-warming story was shared on Facebook, it {#blank#}5{#/blank#}(attract) hundreds of comments from people {#blank#}6{#/blank#}(touch) by the tale.

    "It's such {#blank#}7{#/blank#} extraordinary story! I really admire Officer White for being just what this young man needed—a friend. And it's also a great opportunity for a learning experience—the {#blank#}8{#/blank#}(important) of using 911 properly. What White has done {#blank#}9{#/blank#}(positive) influences those {#blank#}10{#/blank#} have been inspired by this story. I hope they will keep up the friendship," wrote Jean Smith