It is 40 meters long and 6 meters wide. This must be the biggest bus you have ever seen. It can carry 1,200 to 1,400 people.

It is China's new Super Bus. It is going for a test run in Beijing at the end of this year. Some other cities are also interested in running the Super Bus. They hope it can solve traffic problems.

    The Super Bus runs along fixed tracks (固定轨道). The bus sits on top of two 2.2-meter-tall legs. The legs have wheels at one end. Small cars can drive under the bus, so the Super Bus does not take up road space.

The bus runs on electricity and solar power. It can travel up to 60 km every hour. Its creator, Song Youzhou, says it can reduce a lot of traffic jams (堵塞).

    The Super Bus can do the work of 40 buses. In that way, it can save 860 tons of fuel (燃料) every year, according to Song.

    "To build a Super Bus and its track costs less than building subways. Subways are nearly ten times more expensive to build." Song said.

    Some people worry that the Super Bus may not be safe. However, Song says there's no need for concern. The Super Bus has laser scanners (激光扫描仪) between its legs. The scanners make sure the cars keep a safe distance.

    Do you know why different animals or pests (昆虫) have their special colors? Colors in them seem to be used mainly to protect themselves.

    Some birds like eating locusts (蝗虫), but birds cannot easily catch them. Why? It is because locusts change their colors together with the change of the colors of crops(庄稼). When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.

    If you study the animal life, you'll find the main use of coloring is to protect themselves. Bears, lions and other animals move quietly through forests. They cannot be easily seen by hunters (猎人). This is because they have the colors much like the trees.

    Have you ever noticed an even stranger act? A kind of fish in the sea can send out a kind of very black liquid (液体)when it faces danger. While the liquid spreads over (散开), its enemies (敌人)cannot find it. And it immediately swims away. So it has lived up to now though it is not strong at all.

    How do you keep cool during summer? Air conditioners or electric fans are good 1 in modern society. But 2 that, people could only use fans.

    Over 3,000 years ago, fans began to 3 They were made of feathers (羽毛), bamboo or silk. They came in different 4 , including round and square.

    Later, with the invention of paper, folding(可折叠) paper fans became popular5 the Song Dynasty.  There are usually beautiful 6on fans. Some are landscapes (风景). Others are flowers and animals. Moreover, many great people including Su Dongpo, a poet of the Song Dynasty, and Tang Yin, a scholar (学者) and painter of the Ming Dynasty, once painted their masterpieces(杰作) on fans. This made fans not only 7 tools in daily life but also great artworks.

    So, with its value of beauty, people take fans as a 8 of status(地位). That's why in old China, emperors and scholars often held fans.

    Today, fans are also great collectors' items(藏品) and gifts. On the opening ceremony of the 2008 Beijing Olympic Games, folding fans were9 to leaders and officials (官员) of other countries. While they were 10 fans to get cool, they were also experiencing Chinese culture.

    Have you noticed your life becoming a little easier? Now, when you go to a certain shopping mall, you can enjoy its free Wi-Fi there. When you want to take a taxi, you can book one with your phone. In fact, all these can be seen as the basic parts of a smart city.

    The idea of a smart city was brought up by US company IBM in 2010. Generally, a smart city is a city that uses digital technologies such as the Internet to improve city planning, save money and resources, and make our life convenient. How smart can a city be? Here are great examples that we can learn from.

    In 2009, Dubuque became the first smart city in the US. The city used smart water meters to take the place of traditional water me tens. They can detect (探测) water waste and leakage (泄漏) and send data to let the house owner know. The same system is used for other city resources like electricity and natural gas. In this way, people know how they use their resources and are glad to help reduce waste.

    Santander in Spain also gives us a look at the future. If people point a phone toward a nearby bus stop, the phone immediately shows all bus lines that serve the stop as well as their arrival times. The government organized a research team and provided an App (应用程序) that collects data on almost everything: light, temperature, and the movements of cars and people. Opening the App near a supermarket provides immediate information on special offers.

    When on the go or traveling, a Disposable(一次性) Toothbrush might be just the product for you, Typically, a Disposable Toothbrush is made out of a plastic material, with toothpaste already on the brush head. Just add water while you are using it. In some new Disposable Toothbrush models, the toothpaste comes automatically(自动地) as you squeeze (挤) the handle of the toothbrush.

    Colgate has upped the competition in the Disposable Toothbrush market by creating a Disposable Toothbrush that you can use at your desk at work, in your car, or after eating at a restaurant. This toothbrush is called the Colgate Wisp, and is about the size of an index finger. The toothbrush can get to those places that are hard to reach just like a regular toothbrush. No water is necessary when using this toothbrush, making it very useful and convenient. A pack of four of the Colgate Wisp's run at about $2.99. If you are one of those people that like to brush your teeth throughout the day but hate the hassle of carrying a toothbrush and toothpaste around, this is perfect!

    Gadgets.boingboing.net is a website that allows different people to share their thoughts and experiences on a certain product. The website gives a general review on the Colgate Wisp，and following the review, people are able to share their first-hand feelings with readers. This is helpful if you are interested in purchasing the Wisp. Visit their website here: gadgets.boingboing.net.

    However, people throw them away after using them only once. It is a kind of waste and is very bad for the environment. If you travel to Beijing， remember to bring your own things. Starting from June, some hotels in Beijing will no longer provide guests with these disposable goods.

The other day I watched a video on TikTok that made me ①c____. The video showed us that a soldier was talking to his three-year-old ②____/'dɔ:tə/. The little girl broke down in tears (眼泪).(A) She was unable to control herself, and kept wiping (擦)tears on her face with her hands while answering her father's words. Dad said, "Is my baby missing Daddy?" "Yes," said the girl, nodding her head and crying. Dad said, "My baby, don't cry. Dad will come home, but Dad can't go home now." The girl still sobbed (抽噎)and nodded. She was trying not to cry, but she couldn't keep her mouth (B)____(close).

I don't know whether this man is a Russian soldier or a Ukrainian(乌克兰的)soldier. But all I know is that he is the father of a child. When I was watching this video, I could not stop my tears (C)____( run) out of my eyes, wishing for the world peace and no war, and praying (祈祷) for the safe return of the baby's father. We don't want to know why there are wars in the world, only hope that there are no wars in the world and no children(D)____ have lost their parents and no parents who have lost their children.

(E)____ the same time, we should thank our motherland (祖国), as she is more and more powerful. (F) We are thankful to our great motherland for giving us a peaceful and beautiful life. The people are safe and happy. Under the epidemic(流行病)situation in the world, China has the biggest population in the world, but gives all the Chinese people free vaccines(疫苗).It is the best country in the world to control the epidemic. So as Chinese people, we should have a thankful heart, work hard, study hard and reward(回报) our motherland.