The computer is a very wonderful machine, and it is so popular today that it seems we cannot live or work without it. Computers are used in many places—in offices, in factories, in big shops, at schools and even at home. With the computer, people are living a better life.
The computer was one of the greatest inventions in the 20th century. The first computer was built in America, and it was not only very large, but also quite heavy. It was as big as two rooms!
But the computer is developing very fast. Today they are becoming smaller and lighter. And they work faster and faster. There are various kinds of computers in the market and you can easily choose one that you like best.
As the computer can do a lot of things for people, it helps us learn about the real world. With the computer, you can send an email just in a few seconds to your friend or receive your message.
Now you can see the computer really gives us a very nice picture about the world of tomorrow. So as students in the 21st century, we have to work hard and learn how to use the computer very well. Don’t you think so?
1. What does the writer think of the computer today?| A．People can’t live without it. | B．It helps people to live a better life. |
| C．It makes people become lazier. | D．It is the most useful invention in the 21st century. |
| A．Small and light. | B．Small and heavy. | C．Large and heavy. | D．Large and light. |
| A．Different. | B．Dry. | C．Tiny. | D．Big. |
| A．Learn how to use the computer well. | B．Learn to develop the computer. |
| C．Learn when to use the computer. | D．Learn to use the computer quickly. |
| A．How to choose a right computer | B．Different kinds of computers |
| C．The history of the computers | D．A wonderful machine—the computer |
相似题推荐
【推荐1】Chinese scientists say they have developed robotic fish that can remove (去除) microplastic particles (微塑料颗粒) from water environments.
Researchers working on the project say the robots could help to clean up plastic pollution in oceans around the world. The robot swimmers are about 1.3 cm long.They are made of a soft chemical material.The robots are built to remove microplastic particles which are smaller than 5 mm while moving through the water. Studies have found that microplastic pollution has been discovered in many natural environments. The material comes from the breakdown (分解) of plastic products and industrial waste.
The project was started by a team at Sichuan University in southwestern China. The researchers say the robots have already worked well in sallow (浅的) waters and they plan to carry out more tests in deeper waters. The team says the robots can be controlled by light. They can swim up to 2.76 body lengths per second. This is faster than most similar soft robots.
Wang Yuyan is a member of the research team. According to her, the small, lightweight robot is now being used to collect microplastics for research purposes. She also says that the team plans to increase that use, so the robot fish can remove plenty of microplastic waste from deep ocean areas.
According to the team, the fish can take in different kinds of microplastics and even repair itself when damaged. And if a robot fish is accidentally eaten by a real fish, it could safely digest (消化) the material.
Wang says similar robots could be developed to be placed inside the human body to remove unwanted materials or diseases.
1. What can we learn about the robotic fish?| A．They are 5 mm long. |
| B．They are made of soft plastic materials. |
| C．They have been widely used around the world. |
| D．They could help to clean up plastic pollution. |
| A．The robotic fish can be controlled by light. |
| B．The robotic fish can work well in shallow waters. |
| C．The robotic fish have been tested in deep waters. |
| D．The robotic fish can swim faster. |
| A．get no harm at all | B．repair itself quickly |
| C．keep the robot forever | D．grow well in deeper waters |
| A．The robotic fish uses light to collect microplastics. |
| B．The project was started by a team at Sichuan University. |
| C．The robotic fish is bigger than the microplastic particles. |
| D．Similar robots could be developed to be placed inside the human body. |
There are some types of robots that already use a form of artificial intelligence called “swarm intelligence”. As an example of how this works, scientists have created underwater robots that will be used to repair coral reefs that have been damaged. What these robots do is work together to rebuild damaged reefs. As they communicate, each one knows what has been done in one area of a reef and can help build other areas or build onto something that another robot has done. Working together, the robots create a new reef that can then be left to grow and thrive on its own.
Amazon, the major electronic commerce company, has recently come out with an ingenious idea. Instead of having a package delivered to a customer via delivery truck, Amazon will send out flying drones（无人驾驶飞机）that will bring a package to a person’s house for delivery almost immediately. Just think about how amazing it would be when you order a small item from Amazon, choose immediate delivery, and within an hour a drone lands in your front yard and leaves your package for you. These types of robots could turn out to be a dream come true for customers who like to get their orders superfast!
1. What are people holding out for?
| A．Robots that do laundry. |
| B．Robots that go shopping. |
| C．Robots that can keep a house clean. |
| D．Robots that have artificial intelligence. |
| A．They use something called “swarm intelligence”. |
| B．They look very much like coral reefs. |
| C．They can thrive on their own. |
| D．They need people to guide them. |
| A．A delivery truck. | B．A coral reef. |
| C．A package. | D．An artificial intelligence robot. |
| A．To help clean their house. | B．To guide a delivery truck. |
| C．To deliver a package. | D．To give an ingenious idea. |
| A．Most deliveries in the future will be made by robot drones. |
| B．The people who use robots the most are very lazy. |
| C．Few robots nowadays can do more than one or two tasks. |
| D．Robots in the future might be able to learn. |
【推荐3】YOUNG INVENTOR（发明家）COMPETITION
What you need to do is easy. Come up with an idea for a future invention（发明）that will help people in their everyday lives and draw a picture of it. It could be anything from a robot to a machine.
Think big and get creative! The aim（目标）is to design（设计）something that is fun as well as helpful. Think about what the future might look like and what would make life easier and more enjoyable. Why not give your invention a name, too?
| Who can enter? Anyone aged between 9 and 16 can join in our competition. If you enter as a team, your team should have 3 members at most. |
| How to enter? Send a picture of your invention to prize@noisycrow. com between January 1st and February 1st, 2022. |
| WIN! You could win a book card and a robot friend, a Wonder Workshop Dash Robot! |
| Got a question? CLICK HERE |
| A．Mike, aged 9; Toby, aged 8. |
| B．Linda, aged 15; Susan, aged 17. |
| C．Dave, aged 12; John, aged 13; Lucy, aged 14. |
| D．Jenny, aged 10; Kate, aged 10; Alan, aged 16; Bill, aged 16. |
| A．A picture and a robot. | B．A machine and a picture. |
| C．A book card and a machine. | D．A robot and a book card. |
| A．Your invention must be about robots. |
| B．You’d better give your invention a name. |
| C．You can call them if you have any questions. |
| D．You should send your picture before February 22nd. |
【推荐1】Planet Earth is about 4, 500 million years old. Geology is about the Earth, how it was made, what it is made of and how it has changed over time.
Geologists who work in geology study the history of our planet. They can also give us important information about natural events that happen today, like earthquakes. This can help us prepare for them. Geologists also help us with other important things that we can use every day, like finding how to make electricity from the Earth.
Geologists find information about earthquakes. The earth is made of rocks. These rocks are always moving. The rocks on the outside of the Earth are pushed and pulled in different directions-up, down, left and right-and sometimes they break. When this happens, the ground begins to move very quickly. This is an earthquake.
Geologists can tell us how strong an earthquake is. They give each earthquake a number from 0 to 10. This is called the ‘Richter scale’. An earthquake that is number 2 is ten times stronger than an earthquake that is number 1.
Every year there are 900, 000 small earthquakes. They are not strong enough for most people to feel them. An earthquake that is 7 or more would be serious. In 2015, more than 8, 000 people died in a 7.8 earthquake in Nepal.
At the moment, geologists cannot say when earthquakes will happen, but they can help people to get ready for them. They can also tell people the best way to make buildings that will not fall down when there is an earthquake.
Word Bank geology地质学 Richter scale里氏震级 |
根据材料内容选择最佳答案。
1. Which may not be the study of geologists?
| A．What the Earth is made of. |
| B．Where the Earth comes from. |
| C．How natural events happen. |
| D．How strong an earthquake is. |
| A．To tell us what geology is. |
| B．To tell us why geology is important. |
| C．To tell us what earthquakes are. |
| D．To tell us how the Earth has changed. |
| A．The ground begins to move very quickly. |
| B．The rocks on the outside of the Earth are pushed up, down, left and right. |
| C．The rocks on the surface of the earth are always moving. |
| D．The rocks on the outside of the Earth are pushed and pulled, and they sometimes break. |
| A．Geology is only about the past. |
| B．Geologists can help so that natural events don’t happen. |
| C．People can’t feel most earthquakes. |
| D．Geologists can tell us when earthquakes will happen in the future. |
| A．The change of the planet |
| B．The information about earthquakes |
| C．The study of geology |
| D．Protecting the Earth |
【推荐2】When someone talks about the brands（品牌）of the smart phones in the world, which brand will you think of? Most people will think about Apple, but now in China and even in the world, Huawei is a wonder（奇迹）.
Although it started producing mobile phones not many years ago, it has become one of the most famous phone companies. Now Huawei has got third place at the mobile market, just following Apple and Samsung. After seeing more of its smart phones were sold last year, Huawei appears to be more confident in its bigger goals. “We hope that in three years our market are can be the top two and in five years our market share can be the top one.” Richard Yi, CEO of Huawei’s Consumer Business Group, said in a recent TV interview.
The company sold 140 million smart phones in 2020. Compared（对比）with 2019, the number increased by（增加了）40 percent, though it was much smaller than Apple’s 207 million iPhones and Samsung’s 255 million smart phones. “The number of our smart phones is still growing,” Yu said, “and our company is expecting an increase of 30% in smart phone shipments（出货量）. It’ll be a great success.”
Although Huawei’s smart phones sold well in Western Europe and China, the market in the US is another example. Yu said that the company was “so late” to the US. However, we are trying hard to raise our market share there in the next few years.
1. According to the passage, which are top two biggest smart phone companies now?| A．Samsung and Apple. | B．Samsung and Huawei. |
| C．Apple and Huawei. | D．Apple and Sony. |
| A．Business. | B．Change. | C．Amount. | D．Difference. |
| A．100 million. | B．70 million. | C．56 million. | D．90 million. |
| A．Huawei has become the best at the mobile market. |
| B．Huawei’s market share will be the top one in five years. |
| C．Huawei is trying hard to make its market share rise in the US. |
| D．Huawei doesn’t sell in Europe as well as in China and the US. |
| A．Smart phones are getting popular around the world. |
| B．Huawei’s phone company is getting better and better. |
| C．Huawei is trying hard to make more money. |
| D．Huawei is increasing its influence in the world. |
【推荐3】Hemant Pacha is 13 years old. He hopes to be a doctor in the future. In his free time, he also likes making video games. At school, he joins a coding(编程) club. It is called ACCESS.
ACCESS teaches students to do computer programming(编程). A computer program helps computers do many things. The program is written in code. It uses words, numbers and anything else. The code gives the computer instructions(指令) to follow. That is how people make apps and games. These people are called coders.
Hemant is learning a lot in the club. He learns how to make his own games. He just finished one last week. In the game, a player moves a yellow ball away from black balls. “It is kind of like Pac-Man,” Hemant said excitedly.
In the club, some students know the latest technology. Others do not even have a computer at home because their parents don’t have enough money to buy it. Some coders are just starting to learn. Others already know how to code something. “That’s not a big problem. Everyone learns something new in our club,” their teacher said.
Jey Veerasamy is a great coding teacher. He helps run the coding club program. “There is one important thing about coding something. You cannot be afraid to make mistakes. It is the only way to learn,” he says. Dr. Veerasamy wants students to try new things. If they don’t work, kids can try other new things. The club will teach students some important skills and they will help them follow their dreams. It’s worth trying again and again.
1. Why does the writer mention Hemant Pacha in Paragraph 1?| A．To show a good job. | B．To show a famous person. |
| C．To tell us a new school. | D．To introduce ACCESS. |
| A．A movie. | B．A player. | C．A computer. | D．A video game. |
| A．Students always make mistakes. |
| B．Many students are good at coding something in the club. |
| C．It’s hard for students to learn a skill in the club. |
| D．The coding club is helpful and important to students. |
| A．The mistakes. | B．The skills. | C．The dreams. | D．The students. |
| A．A coding club. | B．A kind teacher. | C．A computer program. | D．An interesting activity. |
