How fast do you walk? Most people walk between 4 and 6.5 kilometers per hour. But with the Moonwalkers, a pair of walking devices, you can increase your speed by up to 250 percent. These amazing devices can allow you to walk up to 11 kilometers per hour!
The Moonwalkers were invented by a company called Shift Robotics. A pair of the Moonwalkers looks like the lower part of a pair of roller skates. The walking devices can be fastened to the bottoms of regular shoes. But you don’t skate with the Moonwalkers. You can just walk with them the way you do with regular shoes.
The Moonwalkers are very special. Each Moonwalker weighs about 1.9 kilograms. The motor in it powers eight wheels. There is also a gearbox (变速箱) and a few sensors in each Moonwalker. These sensors collect data about the wearer’s walking. The gearbox then uses the data to help change the speed of the Moonwalkers. When it is necessary, the gearbox will slow down the shoes to prevent accidents. And when the wearer has to take the stairs, he or she can lock the wheels to safely go up and down the stairs.
“The Moonwalkers are the world's fastest walking shoes,” says Xunjie Zang, CEO of Shift Robotics. “You don’t need to learn how to use them, but instead they’ll learn from you.” The first batch (批次) of Moonwalkers will ship this summer. Are you looking forward to trying them out?
1题完成句子；2、3题简略回答问题；4题找出并写下第三段的主题句；5题将画线句子译成汉语。
1. The Moonwalkers are a pair of
2. What does a pair of the Moonwalkers look like?
3. Why will the gearbox slow down the shoes when necessary?
4.
5.
相似题推荐
As we all know, there are some differences between American English and British English. How did these differences happen? There is no quick answer to this question.
Actually at first the language in Britain and America was the same. After America became an independent（独立的）country, the language began to change. For a long time the language in America stayed the same, while the language in England changed.
Over the centuries, a number of words and meanings have vanished in British English, but they are still in everyday use in the United States. For example, American English still use the sentence “I guess” (meaning“I think”), just as the British did 300 years ago.
In 1828 Noah Webster published（出版）the first American dictionary. To make American English different from British English, he changed the spelling of many words. That’s why the words colour, centre and traveler are spelt color, center and traveler in American English. Except for these differences in spelling, written English is nearly the same in both British English and American English.
The differences are much greater in the spoken language. You may wonder whether a man from England can communicate with a man from America. There is no need to worry about it. Most of the time, people from the two countries do not have difficulty in understanding each other.
1. When did the English language begin to change?It began to change after America became an
2. Which word means “消失” in the third paragraph?
It is
3. Who published the first American dictionary ?
4. What kind of English does the word “center” belong to?
The word “center” belongs to
5. What does this passage mainly talk about?
It mainly talks about something about the
【推荐2】Do you like math? What do you think of math? Everyone knows that math is one of the most important subjects. However, do you know that we need math in our daily life? Math can be found everywhere in our life. Here are some examples.
Traffic solutions
Have you ever wondered how the timing of traffic lights is decided to avoid traffic jams? Traffic engineers use special math models called traffic flow (流量) models to set these timings. They consider the number of cars, pedestrian crossings (人行横道), the time of day, and any events happening. With these models, engineers can work out the best timings for traffic lights in the city. Moreover, researchers are always trying to make these models to prevent traffic jams more effectively (有效地).
Literature
UK mathematician Sarah Hart presented some interesting thoughts about “three”. She said that the number had a special hold on western literature (文学) and languages.
According to Hart, three sticks can create a triangle (三角形), the most basic stable structure (稳定的结构). Three gives people a sense of strength and completeness (完整). She said, “ ‘three’ becomes common in our language.” Many common phrases (短语)in English come as three words, such as “Ready, set, gol” Some nursery rhymes (童谣) have a word repeated three times, such as “Row, row, row your boat”. In stories, there are usually three main characters, such as Harry, Ron and Hermione in the Harry Potter series. For a series of novels, there are usually three books rather than four.
Weather forecasting
As we deepen our understanding of nature, we come to realize that it can be explained through math. Math plays an important role in weather prediction.
Every day, supercomputers process (处理) thousands of observations (观测) from the earth, including air pressure, water levels, temperature and wind speed. These observations are numerical (数值的) data (数据). Using different math methods, these supercomputers analyze (分析) the data to work out the physical state of the atmosphere (大气) and predict global (全球) weather patterns.
How important math is!
1. List all the examples that math is used in the passage.2. Which ways should researchers consider when they decide the timing of traffic lights?
3. Why does the author mention (提及) nursery rhymes “Row, row, row your boat” and three main characters in Harry Potter?
4. Translate the underlined sentence into Chinese.
5. Give a proper title to the passage.
Whenever the word “peace” comes into our mind, we will imagine a white-colored bird who has a leaf in its mouth. But have you ever wondered why this little bird became a symbol of peace?
It is believed that this symbol comes from the Bible. Actually, for the first time, it appeared in the story about Noah’s Ark(诺亚方舟). In the story, when the heavy rain that flooded(淹没) the earth stopped pouring down, Noah sent out a white dove to see if there was any land. Then the dove returned with a leaf in its mouth, which meant that it had found dry land somewhere. This brought hope to Noah, who had spent almost a year on his ark. From then on, the white dove was considered the symbol of hope and new life.
In another very popular story from Central Asia, a big war was about to happen between two kingdoms. When one of the kings asked for his helmet(头盔), he was told that a dove had made a nest into it. The king’s mother wanted him to keep the nest and doves. The king agreed and headed for the war without the helmet. Seeing the king have no helmet, the other king asked the reason. The king told the truth. The other king was touched by his action. And they finally agreed to make peace instead of war. A nest of dove became a reason for stopping a war. Since then, the dove has been connected with peace. In ancient Japan, a dove carrying a sword(剑) meant the final agreement that two sides had reached in a war. And in Europe, there was a tradition that if a dove flew around a house where someone was dying, then their soul would be at peace.
Many artists also regard the bird as a symbol of peace. But it was Picasso who made the white dove widely regarded as a popular modern symbol of peace when he used it on a poster for the World Peace Congress in 1949.
 The white-colored bird with a leaf in its mouth is a symbol of peace. |
| Two stories of its source(起源) |
| Story 1: In the story of Noah’s Ark, a white dove brought a leaf—a |
| Story 2: In the story of Central Asia, a nest of doves in the helmet of one of the kings |
| Two examples that show its meaning: ●In ancient Japan, a dove crying sword showed the war ●In Europe, a dove flying around shows the peace of the dead. |
| It didn’t become popular as a symbol of peace |
Robots are also used in American hospital. At one hospital, a robot takes meals from the kitchen to the sick people’s room. It never loses its way because it has a map of the hospital in its computer system(系统).
In the future, robots will work in space. But robots never take place of humans, though they can help us in a lot of different ways.
1. People can often see stronger, faster and cleverer robots in the
2. In real life, most robots work in
3. The underlined phrase (划线短语) “take the place of’ means
4. The robots can’t get lost in the hospital , because it has a map of the hospital in
5. From the passage we know that there were
He Zhuowen, 14
Some of us students are still afraid to sleep alone. But my robot can help. It can read stories and sing songs to you when you go to bed. You can have a nice sleep every night with my robot.
Li Zihao, 14
I'd like to make a robot cleaner. Our parents are very busy with work, but they still have to do some housework when they get back home. A robot cleaner can help with the housework a lot. Then Mom and Dad can play or talk with us. Isn't that great?
Zhang Liaoxing, 13
All robots should be able to protect their owners. My robot is as powerful as the famous hero Robocop. But it is much smaller. It looks like a student. We go to school together every day. But when there is an emergency (紧急情况) , it will protect us students and fight against the bad guys（家伙) at once.
Wang Yuwei, 13
I often feel lonely, so my robot will be very friendly and kind. It can know your feelings and react (反应) like your friends.
I will also let the robot read, so it knows a lot and can teach us about right and wrong, just like our parents. In a word, with my robot, you won't feel lonely any more.
1. How many students are talking about robots in the text?
_________________________________________________________
2. Whose robot can read stories and sing songs at bed time?
_________________________________________________________
3. Where does a robot cleaner probably help with housework?
_________________________________________________________
4. What does Zhang Liaoxing think all robots should be able to do?
_________________________________________________________
5. Why does Wang Yuwei need a friendly robot?
_________________________________________________________
【推荐3】Millions of people around the world love to go to the cinema and see films, (A) _______ not everyone knows how the films were invented. Although several inventors helped make films possible, the story of Edward James Muybridge is the most famous-band most interesting!
Muybridge was an English photographer. In 1872, (B) he was asked to solve a problem. A rich businessman owned a horse and wanted to find out if all its legs left the ground when it was running fast.
It was too difficult to see just by watching a horse, so Muybridge had a (C) clever idea. He put 24 cameras in a row and rode a horse in frpnt of them. When the horse moved, (D) 每个照相机都拍一张照片。When he looked at the (E) pictures, they showed that all the horse’s feet really left the ground!
Then Muybridge put all the pictures together in a special machine. The machine put the pictures in a circle and when it moved, it looked like the horse was moving! This was the first “moving picture”. Today we call it “film” (F) _______ “movie”. After that, people began to put more and more pictures together to make longer films. Modern films work in the same way that Muybridge’s film did. They show 24 to 30 pictures or “frames(镜头）” every second.
1. 在文中(A)和(F)的空白处分别填入适当的单词：2. 将文中画线部分(D)译成英语：
3. 将文中画线部分(B)改写为：He was asked to
4. 写出文中画线部分(C)和(E)的同义词或近义词：
5. 从文中找出两个描述Muybridge的故事的形容词：
【推荐1】“For as long as I can remember, my mom has been a middle-aged woman, but no one told me she used to be a young girl.” This is a line from the film Hi, Mom, the director and star Jia Ling once felt about her own mother.
The film has gotten a high score of 8.1 on the website Douban. Many people said they (A) _______ touched by its raw(质朴的) emotion. Besides, it’s so touching and real that many people cry and think of their own mother after watching it.
It’s based on the real-life story of Jia and her mother, showing her miss and regret of not seeing her mother before she died. To make the film more attractive(有吸引力的), Jia made it a time-travel story. She goes back to 1981 and becomes friends with her mom, Li Huanying. (C) She risks giving up her own life and disappearing to make sure that her mother has a better future.
The film has also been praised for its sincere description of female(女性的) roles. The many women who helped make the film, including Jia herself, helped the movie’s female roles shine in ways that had nothing to do (B) _______their looks.
In the movie, (D)Li is more of a young girl rather than a mother. As Jia says in the movie, “She is not only my mom, but also herself.”
1. 在文中(A)和(B)的空白处填入适当的词：2. 在文中划线(C) She指代的是：
3. 将文中划线部分(D)改写为: Li is more of a young girl
4. 从文中找出两个能形容电影的形容词：
5. 从文中找出能说本文中心大意的单词或短语：
【推荐2】A recent report showed that, in the US alone, 27 million tons of plastic ended up in landfills in 2018, but only 3.1 million tons were recycled. Worldwide the numbers are similarly bad, with just 9% of plastic being recycled. The results are even worse for certain types of plastic. Now, researchers at The University of Queensland have found a kind of worm could be the key to plastic recycling. The worm can eat through polystyrene(聚苯乙烯). To study how worms deal with purely plastic food, researchers separated 135 of the worms into three teams: one was fed only wheat, another was fed only plastics, and the third was given nothing.
“We found the first team of worms have been much healthier than the second and third teams, more than doubling their weight over the study which lasts three weeks. Though the second team of worms made less impressive gains, they still put on more weight than the third team of worms,” Dr. Rinke said. “This suggests the worms can get energy from plastics, most likely with the help of their gut microbes(肠道微生物).”
“The worms are like mini recycling factory, eating the polystyrene and then feeding it to their gut,” Dr. Rinke said. It’s hoped this will improve plastic waste recycling and reduce landfills. Researchers said they aim to grow the gut microbes in the lab and further test its ability to degrade(分解) polystyrene. Then they can look into how to use this to a level required for a whole recycling factory.
阅读以上信息，用恰当的词完成下面的短文，每空一词。A recent report showed that only one ninth of the waste plastic was recycled in 2018 in the US. The similar thing
【推荐3】In July 2021, China introduced the “double reduction” policy. It hopes to reduce students’ learning burden (负担) by reducing homework and after-school classes. A few months has passed since the new semester began. How do students feel about this new policy? “Our homework is clearly less than before,” said 13-year-old Shen Yuzhe from Beijing. “We are not encouraged to buy workbooks any more. The exercises are mainly from the textbook.”
According to Shen, teachers now teach at a much slower pace (节奏). Students have enough time to process new knowledge. “Our teachers are also giving us more chances to do experiments and learn from life,” said Shen. “For example, we went to research earthworms in a field during a biology class. This is a much better way to learn things than just hitting the books.”
For 13-year-old Zhang Hangming from Tianjin, the best thing about “double reduction” is the increased time in after-school activities. “We can now spend more time taking part in clubs and activities, such as dancing, volleyball and drama. I have joined a group called ‘leadership development’ where I can learn all kinds of skills beyond academic (学业的) study,” said Zhang.
Both Shen and Zhang find there are fewer exams now. But they think it’s not necessarily a good thing, “Exams push me to study harder. Besides my progress, more importantly, each exam shows my weak points as well,” Zhang said.
Shen also pointed out that when burden is lightened, self-discipline (自律) becomes the key. “Some students now spend more time having fun when homework is finished early. But if you use all the free time to relax, you might fall behind the students of your age.” he said.
回答下面5个问题，每题答案不超过6个词。
1. What did the 2021 “double reduction” policy aim to do?
2. According to Shen Yuzhe, which is a better way to learn things?
3. What’s the best thing about “double reduction” for Zhang?
4. What can Zhang learn about each exam?
5. What seems to be more important when students have lighter burden?
