Nowadays Dianzan is one of the most popular words on the Internet.When you think someone's ideas are right, when you think someone's articles are1, or when you are moved by what someone writes, you can click(点击) the praise sign. Anyhow,clicking the praise sign2 thatyou agree with someone or praise someone.

Dianzan is a kind of Chinese Internet language. People3useit when they surf the Internet. There is a function of Dianzan in the QQ space.The QQ space has had the function4 2010.It didn't become very popular until Sina blog(新浪博客)5the function of Dianzan.In recent years, it has become more and more popular. When the 2015 New Year came,Chinese president used the word Dianzan to praise and express his6 to the great Chinese people.

Websites can know how many people support some ideas by7 how many people click the praise sign. Experts(专家) can know8 teenagers are caring about through what they clickthe sign for. That can help them solve teenagers'9.

Clicking the praise sign is really a(n)10 thing. Have you ever clicked the sign for anybodyon the Internet?

    Laughter is natural for people. We start to laugh at about four months of age. We start to laugh even1 we start to speak.

    Laughter connects us with others. We laugh more when we are with other people. It's difficult to pretend to laugh. Laughter is2. When people pretend to laugh, most people know it's not real.

   When do people laugh?

    Only 10 to 20 percent of laughter is about something3. Most laughter is about being friendly with other people. Most laughter says, "I don't want to4 with you. I want to be friendly with you." This kind of laughter brings people together.

    We often laugh when we feel nervous. In movies, there is often a joke at an exciting moment when everyone feels nervous. It is usually a(n)5 joke, but we laugh a lot. Our laughter helps us6.

   Why doesn't everyone laugh at the same joke?

    Not everyone has the same sense of7. Some people think a joke is funny, but other people don't think so. People have different ideas about what is funny.

    Our idea of what is funny changes with8. For young children, the world is new. They are interested in many things, so they laugh9. Teenagers often laugh to protect themselves. Adults laugh at themselves and other people with similar problems. They laugh at things that give them stress. Our10 for laughter change gradually.

The fear of the novel coronavirus（新冠病毒） has turned into discrimination (歧视) against certain groups of people, {#blank#}1{#/blank#}(include) people from Wuhan, Chinese people or Asians in general. However, the outbreak of the disease can't be an excuse to isolate these groups. What we should do is {#blank#}2{#/blank#}(get) rid of (消除) discrimination and show sympathy (同情) instead.

Since the outbreak of novel coronavirus pneumonia (NCP), many people {#blank#}3{#/blank#}(live) in fear. This is normal, as the disease is infectious (传染性的) and dangerous. However, some people turn pale at the mention of "people from Wuhan or Hubei province", the center of the outbreak.

    Ding Baixing, a doctor at Huashan Hospital in Shanghai, has seen this himself. He treated a suspected (疑似的) patient {#blank#}4{#/blank#}(name)Chen Hui who traveled from Wuhan to Shanghai. Chen appeared desperate (绝望的) and avoided {#blank#}5{#/blank#}(keep)in touch with other patients, as he worried that they would be afraid of him.

    Chen is not alone. Chen Xue, an editor {#blank#}6{#/blank#}(work) in Beijing, went to Chongli in Hebei for a ski trip on Jan 23. Though her temperature was fine and she hasn't been to her hometown – Hubei province – since October last year, the hotel she was in told her that it {#blank#}7{#/blank#}(will not) receive Hubei guests from the next day.

    However, the real enemy is the virus – not the patients or people from Wuhan or Hubei province. Singaporean Prime Minister Lee Hsien Loong echoed this idea in a speech at the Chinese New Year dinner. "Even though the virus started in Wuhan, it doesn't respect nationality or race (种族). It does not check your passport (护照) before it goes into your body. Anybody can be infected," he said.

    It is not the {#blank#}8{#/blank#}(patient) fault that they have been infected. There is no reason to blame them. If patients didn't go to the hospital for fear of discrimination, the virus {#blank#}9{#/blank#}(spread) to more people. "Protecting them is just as important as protecting ourselves," Ding said. 

Poem that inspires

At the CCTV Spring Festival Gala (春节联欢晚会), six hosts read a poem to inspire people across the country. It called for greater respect for medical workers, as well as called on everyone to work together to fight the virus. One of the lines – "we isolate (隔离) the virus, but we don't isolate love" – has been {#blank#}10{#/blank#}(wide) posted online.

We live in the “computer age”. Today, it is more and more i{#blank#}1{#/blank#}for us to use computers. We use them at w{#blank#}2{#/blank#}, and we also use them at home. Adults use computers and c{#blank#}3{#/blank#}use computers, too. We often use the mouse to run all the work.

Slowly, you may f{#blank#}4{#/blank#}painful and numb(麻木的)in your hand, your wrist, your shoulder, and your neck. What's w{#blank#}5{#/blank#}with you? The mouse is eating your body f{#blank#}6{#/blank#}your hand to all. Some researchers explain that we feel painful b{#blank#}7{#/blank#}we often repeat the same action—click(点击). So we feel u{#blank#}8{#/blank#}little by little.

Nowadays, there are no best ways to s{#blank#}9{#/blank#}this problem. The only way is to change the way we use the mouse and the keyboard(键盘). When at work, we should have a break and e{#blank#}10{#/blank#}to keep our body healthy.

Mobile phones are becoming more and more popular not only with adults but also with students. However, they also have become a problem for middle schools in the last few years.

Some children have got mobile phones as Christmas or birthday gifts, and more will ask their parents to buy phones for them.

Many students like mobile phones because they are easy and quick. Some parents feel it convenient because they can get in touch with their children. Some teachers think using mobile phones is a distraction(分心的事)to students during school hours and mobile phones also give them much trouble in their classrooms. Sometimes students send phone messages to cheat(作弊)during exams. A new study says that some teenagers even hurt their fingers because of the over-use of mobile phones. They keep using mobile phones for more than ten hours during a day.

Many teachers suggest that students should not have phones at school, but if there is a good reason, they can leave their phones at the school office. Many people think they understand why parents would want their children to have them, but they agree school should let the students know when they can use their mobile phones.

Imagine （想象） walking into a movie theater without being greeted by the smell of popcorn. It's hard to believe, isn't it? For many people, popcorn goes hand in hand with movies. They can't have one without the other. But 1  did this happen?

The 2  between the two is younger than you may think. In the mid-1800s, popcorn was already a popular snack in America. Vendors sold it on the 3  . People, especially kids, loved this street food. In the early 1900s, vendors started to sell popcorn 4  movie theaters.

However, theater owners didn't like popcorn. They believed it would make the experience of watching a movie 5  enjoyable. Eating it would make too much noise during the silent movies.

Later, when movies added sound, the 6  noise problem went away. More and more people went to the movies. Some of them even secretly（秘密地） took popcorn into the theaters. Later, more movie theaters 7  . Some of them agreed people to eat popcorn while they were watching movies.

In the 1930s, the theater owners found that people didn't need to buy popcorn from street vendors. Because popcorn was 8  to make, they could make and sell it themselves. They did that and the smell of popcorn drew more people to their theaters. The 9  made a lot of money, and people enjoyed themselves at the movies.

Today, popcorn is still an important part of the movie-going experience. Roles, a man who once ate three bags of popcorn, said, "People come to theaters sometimes just for the 10 . They don't even care what is playing!"