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2．　　Do you know short videos? Nowadays, You will be popular if you can share your short videos on video apps like Douyin or Kuaishou. Many people share short videos on them. These videos are usually 15 seconds to a few minutes long. They have a lot of views (浏览) online. You can even add music , subtitles (字幕) and special effects (特效)to your videos. They show people doing activities like cooking, exercising and singing.
　　Middle school students enjoy these videos very much. More than 50% of first-year and second-year junior high school students said they enjoyed watching these short videos. And more than 60% of high school students said that they did the same. About 44% of junior high school students and 54% of high school students posted their own videos, according to (根据) a study by the China Youth Research Center.
　　The videos let middle school students see funny and fantastic things. Many students like to share the fun things with others, too. For example, a 12-year-old girl named Xiao Qianyu posted videos showing her learning jazz (爵士乐) dance. This helps her win many fans(粉丝).
　　However, some students spend too much time watching them and not enough time studying. Some videos have vulgar content (低俗的内容) and it is not good for students. To solve this problem, Douyin added a new function (功能) in April. The app will be closed if someone uses it for over two hours a day.
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3．　　Birthday celebrations are important festivals for everyone around the world. There are different kinds of activities to celebrate birthdays. Some traditions are pretty similar from one country to another:candles, flowers and cakes. And there are always birthday wishes. But there are also different ways to celebrate birthdays. Let's take a look at different traditions for birthday celebrations:
　　Argentina (阿根廷): In Argentina, as in many Latin American countries, one of the most important birthday parties is a girl's fifteenth. When girls turn fifteen, they have a huge party and dance first with their fathers, and then the boys at the party.
　　China:The birthday child gets gifts from the parents. Friends and all his or her family are invited to dinner, and noodles are served to wish the birthday child a long life.
　　Denmark (丹麦): A flag is flown outside a window (窗户) to show that someone who lives in that house is celebrating the birthday. Gifts are placed around the child's bed when he is sleeping so he can see them immediately (立刻) when he wakes up.
　　Holland (荷兰): The birthday child gets an especially large gift. The family put flowers or balloons (气球) on the birthday child' s chair to make it beautiful.
　　India:Usually Indian children wear white to school. However, the birthday child wears colored clothes to school and gives out chocolates to everyone in the class. His / Her best friend helps do this.
　　Japan: The birthday child wears new clothes to mark (标记) the special time. Certain birthdays are more important than others and these are celebrated with a visit to the shrine (神殿). These are the third and seventh birthday for girls and the fifth for boys.
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4．　　In the United States, every year, Thanksgiving Day is a traditional festival for Americans. (1)      . Usually, family members (成员) and friends get together for a big dinner. People sometimes drive their cars a long way for a family reunion( 团聚). Many people also take Friday off and make it a long weekend holiday. (2)      .
　　Thanksgiving Day began in 1621, the second year after the first English settlers (定居者) reached the new world. They did not have enough food. And the American Indians helped the white men. (3)      . In the autumn after the English settlers came to America, they got a lot of food. They were so happy. (4)      . They say"Thank you" for the food and what Indian friends did.
　　(5)      . When it comes to a family reunion, Thanksgiving Day is even more important than Christmas Day or New Year' s Day to most Americans.

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5．　　Let me tell you a story about a scientist and his helper. There is a scientist named Richard. He makes robots to help people with their (1)      . His robots can cook, tidy beds and sweep the floor. Ellison is Richard's helper. He has to (2)       Richard's lab (实验室) clean and tidy. Richard sometimes teaches Ellison (3)       to use a robot, but Ellison never listens. So he doesn't know much (4)       robots. Ellison doesn't want to learn that because he thinks it is a difficult (5)      .
　　One day Richard went to the town to go shopping. "(6)       I come back at 3:30," he said to Ellison before (7)      , "I want a clean room. Goodbye and work hard!"
　　Ellison tidied the table. Then he swept the floor and (8)      , "Now I have to wash the floor (地板)." He got a bucket(桶) and filled it with some water. "The robot can help me. Let me have a try," he said to (9)      . He pressed (按) a button (接钮) and said , "Please wash the (10)      ."
　　The robot took the bucket but poured the water over the floor. Then it (11)       the bucket, filled it and poured the water again.
　　"Stop," shouted Ellison, but the robot didn't stop. Ellison pressed (12)       button. The robot worked even faster, filling the bucket and pouring the water. Soon the lab was (13)       of water. Ellison didn't know what to do.
　　Just then, the door opened. It was Richard. Looking at the water on the floor, he was very (14)      . He went over to the robot and pressed some buttons. The robot stopped.
　　"Now clean up!" Richard shouted at Ellison. "Next time Richard teaches me, I will listen to him (15)      ," Ellison thought. It took him a long time to clean up the floor.

6．
　　Every day, more than 88, 000 people die of flu all over the world. In winter, some people have the flu (1)      . Do you know how to stop the flu?
　　First, drink (2)       hot water when you have the flu. Second, get enough sleep and have a good rest. If you can't sleep, you'd better listen to music or watch a TV play to relax (3)      . But remember not to be too (4)      . Third, if you feel tired, you must ask your (5)      to take you to see a doctor. You had better not take any (6)      before you see a doctor. (7)      , you'd better not share things (8)      others, because it is easy to spread (传染) the flu to others. It is (9)       for you to wash your hands often. Last, if you feel it is not serious, you may not see a doctor. But if you have a high (10)       for a few days, you must go to see a doctor at once.

7．　　How much do you know about the Internet. It is becoming (1)      important part of our lives.
　　The Internet makes our lives more interesting. We can get all kinds (2)       information on the Internet and share it with others. We can make friends and share our ideas and feelings with each other by sending emails or chatting online. We can also do shopping, study, listen to music and watch movies. This helps make life easier.
　　(3)      , the Internet is not perfect (完美的). We should use (4)       safely. Everyone can share information, and not all of it is true. Some people use the Internet to hurt others and try to get money by cheating. Some young people usually spend too (5)      time playing games and so on.

8．Mum: Helen!What are you going to do this weekend?
Daughter: (1)      .
Mum: School?Why are you going to school on weekends?
Daughter: Because there is going to be a speech (演讲) competition.
Mum: Wow! Wonderful!
Daughter: (2)      ?
Mum: Sure, I'd love to. (3)      ?
Daughter: I'll give a speech. I'll be more comfortable if you're there with me.
Mum: I' m glad to hear that. OK. I'll clean my car to prepare for it.
Daughter: Oh, Mum. (4)      . It's difficult to park near my school.
Mum: OK! Shall we take a bus or ride bikes?
Daughter: (5)      . The weather report says it will be cold this weekend.
Mum: No problem!