1 . There are countless myths（神话）to explain how the world came to have a moon to bring light to the night time. But now there is a plan for a man-made moon. It will give us far more light than the natural Moon.
China is preparing to put a man-made moon in the sky above Chengdu by 2020. It will reflect sunlight back on to the Earth. If it succeeds, three more such objects will be sent out in 2022, according to Wu Chunfeng, a space scientist. Wu said it would be similar to how we get moonlight, but he predicted that the man-made moon would have eight times the brightness of the real one. “This is because the object will be about 500 kilometers above the Earth. That will make it a lot closer to us than the Moon, which is over 380,000 kilometers away,” Wu added.
If the plan works, the man-made moon will save a lot of power. Scientists predict that Chengdu could save around 1.2 billion yuan in electricity every year if a new moon lit up 50 square kilometers of the city. And in 2022, four man-made moons can take turns to work as they will not always be in the best position（位置）relative to the Sun. Together, they can give light to an area of up to 6, 400 square kilometers on the Earth for 24hours. That means its brightness will be seen in most areas in China, reducing the need for streetlights.
1. Above which city is China preparing to put a man-made moon in the sky by 2020?| A．Beijing | B．Shanghai | C．Chengdu | D．Wuhan |
| A．吸收 | B．反射 | C．照耀 | D．覆盖 |
| A．500 kilometers | B．380,000 kilometers | C．50 kilometers | D．6,400 kilometers |
| A．The man-made moon will be as bright as the natural one. |
| B．The man-made moon will work similarly to the natural one. |
| C．The man-made moon has already lit up the city of Chengdu. |
| D．The man-made moonlight will cover the whole china. |
| A．Culture | B．Sports | C．Education | D．Science |
2 . Remember books? The paper kind. With pages. In the old days before computers, to get information, people read books and newspapers. Students spent hours and hours in the library, looking for information in the old books for homework. Now students can find anything on the internet in seconds. The library was a place where everyone was quiet. Sing along to music? Never! Watch a movie on phone while they are reading? Impossible! But now students can watch videos about their research topic as they write a paper.
Before computers, articles were handwritten. If a student made a mistake, he would throw the paper away and start writing all over again. Now? If a student makes a mistake, he can just remove or cut it. Students type on their computers and edit （编辑）freely. But they should save their writing in time on the computer because it may stop working suddenly. Who wants to lose his hard work forever?
Communication online is easy and fun. While students are writing, they can discuss with friends in another window. Did you think they were chatting （聊天）with someone in the real same room? No! They're chatting with everyone in their own room.
Technology helps us get important information in no time. In areas where bad weather is a problem, we can get warnings from our phone. Our local radio or TV station can give information about where to get help or what to do to keep our family and home safe.
Technology is our friend!
1题完成句子；2、3题简略回答问题；4题找出并写下第四段的主题句；5题将文中画线句子译成汉语。
1. In the old days before computers, people
2. How can a student correct his mistake while writing on the computer?
3. Why should students save their writing in time on the computer?
4.
5.
3 . Artificial intelligence(人工智能), or AI in short, is the science of giving computers and machines ability to think and work like humans.
AI scientists and engineers have made a lot of cool technologies.AI is rapidly catching up
AI is also used in self-driving cars
Service Robots also show you how
AI is so powerful that it can help human beings and even replace us in many jobs.
1.| A．with | B．to | C．of | D．from |
| A．uses | B．used | C．is used | D．is using |
| A．a | B．an | C．the | D．/ |
| A．He | B．She | C．I | D．It |
| A．what | B．whom | C．which | D．who |
| A．able | B．ability | C．unable | D．ably |
| A．which | B．what | C．how | D．when |
| A．great | B．greatly | C．greater | D．greatest |
| A．play | B．playing | C．played | D．to play |
| A．many and many | B．much and much | C．more and more | D．most |
4 . Three-two-one, fire!
At the moment of 9:43 a.m., on Tuesday, June 23rd, 2020, at the Xichang Satellite Launch Center(卫星发射中心) in Sichuan Province, the last satellite of the third-generation network(第三代导航系统) was sent into space. It is the 55th member in the family of BeiDou. It belongs to China’s Beidou Navigation Satellite System(BDS北斗卫星导航系统). So far, 59 satellites, including the first four test ones, have been launched from Xichang. With the development of China, we have already owned three other famous satellite launch centers — Jiuquan, Taiyuan and Wenchang.
After a period of tests in space, this new satellite has started to work with other Beidou satellites together. It is designed to work for at least 12 years. So far, China has completed the third-generation network of China’s BDS. It was a new milestone in the nation’s space research work. The launch showed our country has completed our largest space-based system. It’s one of four global(全球的) navigation networks, including the United States’ GPS, Russia’s GLONASS and the European Union’s Galileo.
BDS has been widely used as public resources(资源) in our daily life. It has been shared by the whole world. It will provide more services around the world. BDS is the common wealth of the development of human beings.
1. Where did China launch the last satellite of the third-generation network?| A．Xichang. | B．Jiuquan. | C．Wenchang. | D．Taiyuan. |
| A．4. | B．55. | C．59. | D．114. |
| A．记录 | B．事业 | C．里程碑 | D．起点 |
| A．China | B．the United States | C．Russia | D．the European Union |
| A．The last satellite of BDS was launched at 9:43 p.m., June 23rd, 2020. |
| B．The new satellite is designed to work for at most 12 years. |
| C．BDS is shared only by China as public resources. |
| D．So far, China has completed the third-generation network of China’s BDS. |
5 . Today there are already robots working in factories. Some can
Scientists are now
Scientists also believe that there will be
From the Beijing West Railway Station to Beijing Daxing International Airport, a section of the intercity (城市间) railway connects Beijing with Xiong’an New Area together. It was put into operation (投入运营) on Thursday.
It starts from Beijing West Railway Station, the busiest railway station in the capital, and ends at Daxing Airport, according to the China State Railway Group. The first train, C2701, left at 6:56 a.m. and stopped at 7:26 at Daxing Airport, which went into operation on Wednesday.
The high-speed train with eight carriages (客车箱) is able to carry more than 1,100 passengers. It costs 30 yuan for second-class carriages, 48 yuan for first-class and 90 yuan for business-class at usual prices. Passengers will also enjoy discounts (折扣) as much as 17 percent depending on the train’s leaving time.
Wang Kai, 32, who works for a company in Beijing, went to Daxing Airport to catch his flight to Yantai in Shandong Province, As a fan of the country’s high-speed trains, he chose the high-speed train.
“I had no choice before but to take a taxi or take the subway to the Beijing Capital International Airport,” he said. “It’s a different experience to take the train to the new airport, both of them are among the world’s best. The e-ticket service made the trip very easy, comfortable and time saving,” he said.
The whole intercity railway line will open in 2020. It will be an important connection between the urban areas of Beijing. Beijing Daxing International Airport and Xiong’an New Area.
1. What was put into operation on Thursday?| A．A section of the intercity railway. | B．Beijing Daxing International Airport. |
| C．The Beijing West Railway Station. | D．China State Railway Group. |
| A．Twenty minutes. | B．Thirty minutes. | C．Forty minutes. | D．Fifty minutes. |
| A．30 yuan. | B．48 yuan. | C．60 yuan. | D．90 yuan. |
| A．Because it was easy and comfortable. |
| B．Because it was cheap and comfortable. |
| C．Because it was fast, but it was a little expensive. |
| D．Because it was cheap, but the e-ticket service made the trip very difficult. |
| A．By admiring(羡慕) the importance of the new airport. |
| B．By telling about the speed of the high-speed train. |
| C．By telling about the prices of the high-speed train. |
| D．By showing the future of the intercity railway line. |
7 . It's reported that a Chinese company has created a new facial recognition system that can identify (识别) people even if they are wearing masks. Developers began working on the new system in January 2020 when the novel coronavirus appeared in China. The fast spread of the virus has led most people to wear masks in public to protect themselves and people around.
China is regarded as a world leader in the development of artificial intelligence (AI). According to engineers at the Beijing-based Hanwang Technology Ltd, this system is the first to be created to identify people wearing face masks. A team of 20 engineers completed it in about a month, adding a collection of about 6 million unmasked faces and a smaller collection of masked faces," the company said.
Hanwang is now selling two main kinds of products using the new technology. One performs single channel recognition (单通道识别), which will be used at the entrances to buildings. The other product is a multi-channel (多通道识别) recognition system that uses groups of cameras. It's said that the multi-channel system can identify a person in a crowd of up to 30 people within a second.
When people wear a mask, the recognition rate can reach about 95 percent," said Huang Lei, Hanwang's vice president. The system's success rate for people without wearing a mask is about 99. 5 percent."
Nowadays the new system is trying to identify people with both sunglasses and a mask. In such cases, all of the key facial information is lost, making recognition hard," Huang said.
1. What does Paragraph 1 mainly want to tell us?| A．The truth that people should wear masks in public. |
| B．The reason why a new facial recognition system was created. |
| C．The time when the novel coronavirus appeared in China. |
| A．After many unmasked and masked faces are stored in it. |
| B．After just a large collection of masked faces are added to it. |
| C．After 20 engineers work hard for a month. |
| A．It can identify people with sunglasses and masks. |
| B．It can be found at the entrances to buildings. |
| C．Many cameras are used at the same time. |
| A．The hair. | B．The ears. | C．The eyes. |
| A．show the rapid development of China |
| B．explain the popularity of AI |
| C．introduce a new recognition system |
| FUTURE VIEW | ||||
 It will be great if there is some kind of fuel(燃料）we can use in cars that won’t produce any pollution. I guess there are scientists right now trying to do that, and I hope they’ll succeed because the world would be a much cleaner place, wouldn’t it? Charlie | ||||
| I think it will be great if they invent something so that we only have to sleep for one or two hours every day. Then we’d all have much more time to do things and to enjoy ourselves. Life would be better, I think, and everyone would do a lot more with their lives. Miguel | ||||
| If I could choose anything, I’d go for a time machine so that I could go back and do some things differently. Of course, It will be great if there that’s impossible— but wouldn't it be great if it was possible? I wish I could go back in time to when I was a kid and say some of the things in a different way! Hannah | ||||
| Well, of course, the best thing is medicine for rally bad diseases（疾病）.A lot of scientists are working very hard to stop diseases like Ebola, a terrible disease that has killed many thousand people in Africa. So if they found a special treatment for Ebola, or a way of completely preventing it, life would be easier in so many places. Isabella | ||||
| I wish there was a machine that did homework! Wouldn’t that be fantastic? But I guess teachers wouldn’t be very happy. Georgina | ||||
1. Why does Hannah want to go back in time?
| A．To be young again. | B．To live a better life. |
| C．To do something for Africans. | D．To say some words differently. |
| A．Miguel. | B．Isabella. | C．Charlie. | D．Georgina. |
| A．Health. | B．Science. | C．Travel. | D．Education. |
9 . Everyone knows by now that plastic pollution is a huge problem for the environment. Beijing, for example, has dealt with this by banning (禁止) thin plastic bags, plastic tableware (餐具) and other plastic items in supermarkets, restaurants and hotels since May 1, according to CGTN.
But an even better solution might be on the way. Researchers at a French company called Carbios have discovered a bacterial enzyme (细菌酶) that can break down plastic. The enzyme, which was first found in compost (堆肥) leaves, turns plastic into chemical “building blocks” that can then be used to create new products, according to the Guardian.
The new enzyme was uncovered in research that was published last month in the journal Nature. Researchers studied over 100,000 microorganisms (微生物) to find one that could break down plastic quickly. The leaf compost enzyme was first discovered in 2012. Scientists changed its genes (基因), allowing it to break down 90 percent of one ton of plastic in less than 10 hours.
“It had been completely forgotten, but it turned out to be the best,” said Professor Alain Marty, chief science officer at Carbios.
The enzyme especially breaks down PET, a type of plastic that is most commonly used to produce plastic bottles and food packaging (包装). It is the fifth most common type of plastic that we use.
Carbios said it is working together with companies like Pepsi and Nestle – major consumers of plastic themselves – to develop their research and start using the enzyme on an industrial scale (范围), according to Forbes.
1. What do we know about the enzyme?
| A．It is a type of bacteria. |
| B．It can break down plastic quickly. |
| C．It is the fifth-most common type of bacteria. |
| D．It can break down PVC. |
| A．Where the scientists found the new enzyme. |
| B．How the scientists changed the enzyme’s genes. |
| C．How the scientists found the new enzyme. |
| D．When the scientists found the new enzyme. |
| A．It was too late to find the new enzyme. |
| B．The new enzyme was forgotten by experts. |
| C．They forgot to change the enzyme’s genes. |
| D．Better late than never. |
| A．Carbios will work together with companies that use a lot of plastic. |
| B．Carbios will keep looking for a more efficient enzyme. |
| C．Carbios will turn its focus toward production. |
| D．Carbios will search for more companies like Pepsi to work with. |
| A．How to protect our environment. |
| B．A natural way to recycle plastic. |
| C．Why Beijing has banned plastic items in many public places. |
| D．How Carbios discovered a bacterial enzyme. |
10 . A robot is a machine. But it is not just any machine. It is a special kind of machine. It is a machine that moves. It follows instructions. The instructions come from a computer. Because it is a machine, it does not make mistakes. And it does not get tired. And it never complains. Unless you tell it to!
Robots are all around us. Some robots are used to make things. For example, robots can help make cars. Some robots are used to explore dangerous places. For example, robots can help explore volcanoes. Some robots are used to clean things. These robots can help vacuum your house. Some robots can even recognize words. They can be used to help answer telephone calls.
Some robots look like humans. But most robots do not. Most robots just look like machines. Long ago, people imagined robots. Over 2,000 years ago, a famous poet imagined robots. The poet's name was Homer. His robots were made of gold. They cleaned things and they made things. But they were not real. They were imaginary. Nobody was able to make a real robot. The first real robot was made in 1961. It was called Unimate. It was used to help make cars. It looked like a giant arm.
In the future, we will have even more robots. They will do things that we can't do. Or they will do things that we don't want to do. Or they will do things that are too dangerous for us. Robots will help us fight fires. They will help us fight wars. They will help us fight sickness. They will help us discover things.
They will help make life better.
1. As used in paragraph 1, we can understand that something special is NOT .
| A．normal | B．expensive | C．perfect | D．tired |
| A．To show how easy it is to make a robot. |
| B．To tell what a robot is. |
| C．To describe the things a robot can do. |
| D．To explain the difference between a robot and a machine. |
| A．1961. | B．1900. |
| C．2003. | D．2000 years ago. |
| A．To help make a sandwich. | B．To help tie shoes. |
| C．To help read a book. | D．To help explore Mars. |
| A．Robots are old. | B．Robots are confusing. |
| C．Robots are helpful. | D．Robots are dangerous. |
