GPS, which means Global Positioning System, is a small radio receiver. It looks like a mobile phone. You can hold it in your hand, or put in your pocket. It is sometimes put into a watch or a telephone. We also find GPS devices in cars, planes, or boats. Some of these devices have electronic maps, so you know where you are. For example, in a city they can tell you the name of the street.
There are three parts to the Global Positioning System. The first part is the receiver. You can hold it in your hand, or have it fixed into your car, plane, etc. The second part is a group of satellites orbiting the Earth. The receiver contacts at least four of the satellites and calculates(计算) its position. The third part of the system is a network of ground stations.
Some people think that in the future the GPS will be as common as the mobile. They are becoming cheaper and more and more accurate(精确的). There are also new uses for the GPS. Perhaps they will become like watches. Everyone will have one and you will never be lost again.
1. According to the passage, with the help of the GPS, people ________.
| A．can’t be lost in a new city |
| B．can’t find their way in different countries |
| C．can learn about the culture of an unknown place |
| D．can spend the least time getting to another place |
| A．there are three parts to the GPS |
| B．a GPS can’t be put into a watch |
| C．a GPS can help you start your car |
| D．the GPS are becoming more and more expensive |
| A．Receivers | B．GPS devices |
| C．Satellites | D．Ground stations |
| A．the history of the GPS | B．the introduction of the GPS |
| C．the shape of the GPS | D．the three parts of the GPS |
| A．All GPS devices have electronic maps. |
| B．People in many countries will use the GPS for free. |
| C．The receiver of the GPS contacts at least five of the satellites. |
| D．The GPS will become more and more common in everyday life. |
相似题推荐
【推荐1】In 1826, a Frenchman named Niepce needed pictures for his business. But he was not a good artist. So he invented a very simple camera. He put it in a window of his house and took a picture of his yard. That was the first photograph.
The next important date in the history of photography was 1837. That year, Daguerre, another Frenchman, took a picture of his studio. He used a new kind of camera and a different process. In his pictures, you could see everything very clearly, even the smallest details. This kind of photograph was called a daguerreotype.
Soon, other people began to use Daguerre's process. Travelers brought back daguerreotypes from all around the world. People photographed famous buildings, cities and mountains.
In about 1840, the process was improved. Then photographers could take pictures of people and moving things. The process was not simple. The photographer had to carry a lot of films and other machines. But this did not stop the photographers, especially in the United States. After the 1840s, daguerreotype artists were popular in most cities.
Mathew Brady was a well-known American photographer. He took many pictures of famous people. The pictures were unusual because they were very life-like and full of personality.
Brady was also the first person to take pictures of war. His 1862Civil War pictures showed dead soldiers and ruined cities. They made the war seem more real and more terrible.
In the 1880s, new inventions began to change photography. Photographers could buy films readymade in rolls. So they did not have to make the film themselves. Also, they did not have to process the film immediately. They could bring it back to their studios and develop it later meaning that they did not have to carry lots of equipment. And finally, the invention of the small handheld camera made photography less expensive.
With the small camera, anyone could be a photographer. People began to use cameras just for fun. They took pictures of their families, friends and favorite places. They called these pictures" snapshot".
Photographs became very popular in newspapers in the 1890s. Soon magazines and books also used documentary photographs. These pictures showed true events and people. They were much more real than drawing.
Photography also turned into a form of art by the end of the 20th century. Some photographs were not just copies of the real world. They showed ideas and feelings, like other art forms.
1. If a photographer wanted to take pictures of moving things in the year of 1840, he had to ________.| A．watch lots of films | B．buy an expensive camera |
| C．stop in most cities | D．take many films and something else with him |
| A．the invention of cameras | B．how to develop films |
| C．the development of photography | D．the important dates in the history of photography |
| A．a French photographer in the 1840s | B．an American photographer in the 1860s |
| C．a German reporter in the 1880s | D．a French artist in the 1890s |
| A．take anything they like | B．keep a record of real life |
| C．take photos of the famous | D．show ideas and feeling in pictures |
a. Photographs became popular in newspapers.
b. Photographers carried processing equipment while taking pictures.
c. The invention of small handheld cameras made photography easier.
d. Daguerre invented a kind of photograph called daguerreotype.
e. Brady took pictures of famous people.
| A．e, a, d, b, c | B．d, b, e, c, a | C．b, e, c, a, d | D．d, c, e, a, b. |
【推荐2】ChatGPT, a smart AI chatbot (聊天机器人) tool, has swept the education world in the past months. According to a US survey of more than 1,000 students, over 89 percent of them have used ChatGPT to help with their homework.
Developed by US company OpenAI, ChatGPT is a powerful tool. You can ask it to write stories and e-mails, create recipes (食谱), translate languages, and answer all kinds of questions.
Some schools in the US, Australia and France have banned (禁止) the use of ChatGPT. In the US, for example, New York City public schools banned students and teachers from using ChatGPT on the district’s networks and devices (设备).
The move comes out of worries that the tool could make it easier for students to cheat on homework. Some also worry that ChatGPT could be used to spread inaccurate (不准确的) information.
“It does not build critical-thinking (批判性思维) and problem-solving skills, which are necessary for academic (学术的) and lifelong success,” said Jenna Lyle, the deputy press secretary of the New York City Department of Education.
Apart from bans, teachers are making changes to their classes to block the use of ChatGPT. Some college teachers in the US try to include more speaking exams and handwritten papers instead of typed ones.
However, not all educators say “no” to ChatGPT. Some Canadian universities are drafting (起草) policies on its use, for both students and teachers. They have no plans to completely ban the tool so far.
Bhaskar Vira, pro-vice-chancellor (副校长) for education at the University of Cambridge in the UK, said that bans on AI software like ChatGPT are not sensible (明智的). “We have to know that [AI] is a tool people will use,” he told Varsity, the school newspaper of the university. What we need to do is “adapt our learning, teaching and examinations”. That way, we can “have integrity (诚信) while recognizing the use of the tool”.
1. Some schools in the US banned the use of ChatGPT because ________.| A．students may use it to cheat on homework |
| B．it hardly provides correct information |
| C．it takes the place of teachers |
| A．ChatGPT is necessary for academic and lifelong success |
| B．using ChatGPT is not good for developing students’ minds |
| C．ChatGPT is so far the smartest AI chatbot tool |
a. They blocked students’ access to the tool.
b. They learned to recognize papers written by ChatGPT.
c. They changed the forms of assignment.
d. They suggested laws to ban the use of ChatGPT.
| A．ab | B．ac | C．bc |
| A．Using ChatGPT makes students lazy in thinking. |
| B．The complete ban on using ChatGPT is not wise. |
| C．ChatGPT will completely change education. |
【推荐3】
Your friend just sent you the fantastic picture of their new puppy, and you’re in love. You want to reply with a “heart eyes” emoji (表情符号). But that wouldn’t express your strong feelings. This puppy is so cute that it just blows your mind! Now you can express your feelings with one perfect emoji. Welcome to the playful world of a new creation —the Emoji Kitchen.
What makes Emoji Kitchen special is its ability to cook up new forms of digital (数字的) expression. All it takes is typing “emoji kitchen” into the search engine and clicking “Get cooking.” Pick two emojis from the list. Then, mix them into your own creations, and then share them in your messages. Are you inviting your friends to eat at a Mexican restaurant? Sunglasses+taco (玉米薄饼卷) will do the trick.
Why is everyone, talking about the Emoji Kitchen? Emojis bridge the gap between text and expression, offering an interesting way to express feelings. But Emoji Kitchen takes emojis to the next level. By combining emojis together, users can express more different feelings.
The Emoji Kitchen also shows a cultural change toward a less verbal (言语的) communication style. As symbols, emojis have become a new form of digital language. And Emoji Kitchen has added at least 14,000 different possibilities!
Emojis have been among us for a while. But the chance to “cook” with them adds a fresh, creative level to our online communications. The Emoji Kitchen is a playful place where digital communication and creativity come together. So, let’s keep cooking up ways to stay connected in the pleasant kitchen of emojis!
1. What is Emoji Kitchen?| A．It’s a playful tool. | B．It’s a perfect emoji. |
| C．It’s a Mexican restaurant. | D．It’s a fantastic picture. |
| A．To give an example. | B．To offer a suggestion. |
| C．To make a comparison. | D．To introduce the topic. |
| A．The possibility of using Emoji Kitchen. |
| B．The development of verbal communication. |
| C．The advantages of Emoji Kitchen over emojis. |
| D．The introduction of a new form of text language. |
| A．In a news report. | B．In a teen magazine. |
| C．In a history book. | D．In a popular cookbook. |
