Earth Hour started at 7:30 p.m. on March 31,2007 in Sydney, Australia. More than 2.2 million homes and businesses turned off their lights for an hour.

    A year later, March 29,Earth Hour 2008 became a global(全球的)activity.50 million people in 35 countries took part in it.

    On March 28, 2009, more than2100 cities in 88 countries joined in it. And the idea “Earth hour” came to China. What were people doing during the Earth Hour? Here are some people's answers:

    Ann: I'm a university student. I invited some of my friends to go out. During the Earth Hour, we were having a candle light concert on the playground. We also talked about the happy times we spent in the university.

    Julie: I turned off the lights in my house and went for a walk during the Earth Hour. It was a little strange to walk in the dark. But I think it is exciting and meaningful.

    Hi, my friend! My name is Lin Feng. I'm fourteen years old. I'm a junior high school student of Dongying. There are (有) four people in my family. My father is a doctor. My mother is a teacher. My sister and I are in the same school. I love my family very much and I like English, too. So I want to have an American pen friend. Let's be friends, OK? My address (地址) is 35 Jinan Street, No. 1 Junior High School Dongying, Shandong, China. My Email is Linf, L-i-n-f, @mail.sd.cn. You can also call me at 18995647.

根据短文内容，完成句子。

    Popular music in America is what every student likes. Students carry small radios with earphones and listen to music before class, after class and at lunchtime. Students with cars buy the large speaker and play the music loudly as they drive in the street.

    Adult(成年的) drivers listen to music on the car radio as they drive to work. They also listen to the news about sports, the weather and the life of American people. Most of the radio programs are music.

    Pop or popular music singers make much money. They make a CD or tape and radio stations use them in many places. Once the popular singer is heard all over the country, young people will buy his or her tape. Some of the money from these tapes comes to the singer. Wherever the singer goes, all the young people want to meet him or her. Now the singer has become a national star.

    There are other kinds of music that is important to Americans. One is called folk music. It tells stories about the common (普通的) life of Americans. Another is called Western or country music. It is about country life and the love between a country boy and his girlfriend. They are very popular among young people.

    On May 5^th, 2017, at Shanghai Pudong International Airport, China's first Homemade jet airliner(喷气式客机), the C919, took off successfully for the first time. It has taken about ten years for the scientists and researchers to make this Chinese dream come true. It's a pride of the whole nation. So far, more than 23 countries have already ordered 570 C919 planes from China. But we still have a long way to go before the C919 carries passengers by 2020.

    What's more, China is working on the new high-speed trains with the highest speed of 400km/h. It will be ready by 2020. Many countries, especially the ones in Central Asia, Southeast Asia, the Middle East and Eastern Europe, are planning to build high-speed rail lines or to improve their railways with the help of China.

    China has made great progress in both science and technology. And it makes a great contribution(贡献)to humans，too. All of these are changing the daily life of Chinese people，even of the people around the world.

Four Funny Inventions

       ①        

    Are you a person who wants to know the time and temperature during the day? You might like Time Temp Glasses. These special glasses show the time above your right eye and a temperature above your left eye. It is surely easier than wearing a watch, and you never have to guess the temperature.

      ②        

    Do you eat too quickly? Do you eat too much? How can the Alarm Fork help you? Aren't you curious? Well, this special fork has two lights: one green and one red. When the green light is on, it's OK to take a bite of food. The fork "knows" when you take a bite, and soon the red light is on. Wait for the green light before you take another bite.

       ③        

    How do you know if your breath(呼气) smells nice or if it smells bad? It's difficult to know, because it's very hard to smell the air that comes out of your own mouth. Smell This is useful for this situation. Smell This covers your nose and your own mouth, so it is easy to smell the air that comes out of your mouth. Does your breath smell nice, or do you need a piece of gum?

       ④       

    Has this ever happened to you? You put a banana in your bag lunch in the morning and when you open the bag at noon, the banana looks like someone drove a car over it. If you put your banana in the Banana Suitcase, this will never happen. It keeps a banana safe, delicious and looking like a banana!