The sun provides sunshine for plants, animals, and people here on Earth. Energy from the sun is called solar energy. It comes in the form of light or heat. Solar energy makes you feel hot. People have used solar energy for thousands of years. Houses were built with windows so that sunlight can get inside and provide heat. The sun’s energy can also be used to heat water and even food.
We can also turn the sun’s light into electricity. This is done with solar panels(太阳能电池板). Solar panels are made up of silicon(硅). When the sunlight reaches the solar panel, the electron(电子) in the silicon, moves and flows through wires in the solar panel.
Using this technology, we can run even cars. But what happens when clouds block the solar panels? The electrons in the silicon will stop moving. But this doesn’t mean that solar energy can only be used on bright sunny days. Solar panels can have batteries to store(储存) electricity for a rainy day. When the sun is shining, the electricity flows from the solar panel into the batteries. This stored electricity can be used at night or on cloudy days.
Solar energy is not as expensive as before. The sun produces more energy in one second than people have used since the beginning of time. Just imagine what we could do if we used the sun’s energy to power our Earth.
1. Which of the following is NOT true about solar energy?| A．It comes in the form of light or heat. | B．It can make people feel cool. |
| C．It can be used to heat water and food. | D．If has been used for thousands of years. |
| A．How electricity is used to run cars. | B．How sunlight is turned into electricity. |
| C．How electricity is stored. | D．How people can use electricity from sunlight. |
| A．Take. | B．Find. | C．Help. | D．Stop. |
| A．Solar panels. | B．Electrons. | C．Batteries. | D．Wires |
| A．Solar energy: the power of the sun. | B．Solar panels. |
| C．Energy we use today. | D．Bright sunny days. |
相似题推荐
【推荐1】How do you feel when you have to give a talk in front of the class? What about when you go to a party? Do you get really shy?
Shyness means feeling nervous or frightened when you’re around other people. Experts (专家) have found that more than 80 percent of middle school students feel afraid to be the center of attention. Some kids are born shy. Some become shy later because of their life experiences.
It’s OK if it takes you a few minutes to feel yourself again, when you go to a new place or meet new people. In fact, everybody gets a little shy sometimes. The question is how shy you are. Some people have red faces and talk on broken sentences when they get shy. But some are so shy that they won’t go to a restaurant because they are too nervous to order and pay for their food. Some are afraid of meeting new people, so they seldom go outside. This kind of shyness can be bad for a person.
If shyness doesn’t stop you from doing something you want to do, being shy isn’t a very big problem. Some experts say shy people are cleverer because they think more and talk less. Shy people are also good at working with others because they think more for other people. Some great people in history were shy, too.
You see, being shy isn’t all bad. But remember not to let good chance pass by just because of it! If you have to sing a song at a birthday party or practise your spoken English in front of others, just do it! There’s nothing to be afraid of.
根据语篇内容，选择最佳选项。1. How does the writer start the passage?
| A．By telling stories. |
| B．By giving examples. |
| C．By asking questions. |
①talking on broken sentences
②being nervous to order food
③being afraid of meeting new people
| A．②③ | B．①③ | C．①② |
| A．Kids are all born shy. |
| B．You can’t change yourself. |
| C．Shy people can also be successful. |
| A．Being happy. |
| B．Being nervous. |
| C．Being shyness. |
| A．To tell us the reasons why people become shy. |
| B．To tell us not to lose chances because of shyness. |
| C．To find out how shy people become successful. |
You will find many strange animals in the sea. Some are as large as a school bus. Many sea animals give out light in the dark and some have sharp teeth.
During the day, there is enough light. Here, under the sea, everything is blue and green.
When fish swim nearby, you can catch them with your hands. When you have bottles of air on your back, you can stay in deep water for a long time. However, you can't dive too deep. And you must be very careful when you dive in deep water.
The deep sea is not an easy place to live in. It's cold, and it's dark, too. The deeper it is, the less sunlight there is. At about 3,000 feet, there is no light at all. It is very dark in the sea. Many fishes have no eyes. Some have big eyes. A few have eyes on one side.
Besides (除了) the cold and the darkness, deep-sea animals face a third danger―other animals.
Animals eat! They must find food to eat. Many animals eat plants. However, some animals eat meat. This means these sea animals have two big jobs. They need to find animals as food, and they have to try not to become other animals' meal.
1. Why do people want to dive in the sea? Because ________.
| A．they want to catch fish | B．they want to find the secrets of the undersea world |
| C．the sea is deep | D．there are all kinds of plants in the sea |
| A．stay in deep water for a long time |
| B．dive very, very deep |
| C．live in deep water easily |
| D．dive freely without any dangers |
| A．One animal finds something to eat, and it may be eaten by others. |
| B．At the depth of 3, 000 feet under the sea, many animals can find their way by hearing and feeling. |
| C．The deeper the sea is, the darker and colder it is. |
| D．At the depth of 3, 000 feet under the sea, all animals can find their way by seeing. |
【推荐3】Every morning you get up, wash your face, brush your teeth, eat breakfast and get ready for your day. The daily actions are so common that you don’t think about them much. But what if you were in space? There is no gravity (重力) there, so weights are not as heavy as they are on the earth. When you drop something, it doesn’t fall to the floor. It floats slowly away in the air. This means that astronauts can’t just put down a tool. They need to tie it down. And how do astronauts drink? In space, water just breaks into small drops and hangs in the air.
Well, astronauts eat and drink differently in space. They have special plates so that their food doesn’t float away. They use special bags for drinks so that the drink stays inside.
Sleep is also different in space. Astronauts tie themselves to the wall so that they don’t float around when they are sleeping. Since they have to work hard, they need to get plenty of rest. The sun rises and sets so often that it can be confusing. The astronauts have alarms and sometimes music to wake them up.
Exercise is important for astronauts as well. Since there is no gravity and astronauts float instead of walking or running, their muscles become weak very quickly. They have to exercise on special machines every day so that this doesn’t happen. No one wants to become ill in space and exercise helps them stay healthy.
However, it is not all hard work in space. When they are not doing science experiments, writing reports or exercising, there is a little time for fun. They watch movies, read the news and play the musical instruments. The astronauts on the International Space Station can even connect to the Internet.
1. Why do astronauts use alarms and music to wake them up? Because _________.| A．there is no gravity there |
| B．they need to get plenty of rest |
| C．the sun rises and sets so often that it can be confusing |
| D．they will float around while sleeping |
| A．Watch movies. | B．Read the news. |
| C．Play the musical instruments. | D．All the above. |
| A．it’s really a mess on the space station |
| B．it’s difficult to eat or drink in space |
| C．astronauts can’t walk in space as they do on the earth |
| D．you can never break a glass in space |
| A．How to eat and drink in space. | B．How to do science experiments in space. |
| C．How to relax in space. | D．How to exercise in space. |
| A．Astronauts work hard in space. | B．Astronauts often become ill in space. |
| C．Astronauts can drink water with a glass. | D．Astronauts can’t sleep well every night. |
【推荐1】China’s first virtual (虚拟的) student—Hua Zhibing, appeared first in Beijing on Tuesday, June 1st, 2021. Two days later, she met fans on Sina Weibo and won close to 2, 000 followers on Weibo in about nine hours.
In her first Weibo post, Hua Zhibing wrote that she would start studying in the computer laboratory in Tsinghua University. There is also a video introducing her in the first post. In the video, she says, “I’ve been interested in literature (文学) and art since I was born. The scientists not only gave me my look and my voice but also taught me to sing and make music.”
“The face and voice of the girl in the video were virtually synthesized (合成的) by AI,” said Tang Jie, one of the main developers of Hua Zhibing. “We hope she can keep learning and develop the ability of communicating with others in the future.”
The appearance of Hua Zhibing soon became a hot topic online. Some were shocked by how China has developed in the field of AI. Some people said they wondered if scientists would make a humanlike robot named Hua Zhibing, rather than a virtual face and voice. Some joked that if more robots like Hua Zhibing, which can learn and work, are made in the future, population decline (下降) would not be a problem in the world.
1. Who is Hua Zhibing?| A．A man from Beijing. | B．A virtual student. |
| C．A fan of Sina Weibo. | D．A follower of the movies. |
① Speak. ② Sing. ③ Make music. ④ Communicate.
| A．①②③ | B．②③④ | C．①②④ | D．①③④ |
| A．Scientists won’t invent a humanlike robot. |
| B．More robots will increase the world population. |
| C．China has made great progress in high technology. |
| D．Hua Zhibing has become a symbol of China’s technology. |
| A．Health | B．Education | C．Travel | D．Science |
【推荐2】ChatGPT, a smart AI 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 emails, create a food menu, 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 networks and devices（设备）, CNN reported. Why? ChatGPT makes it easier for students to cheat on their homework. Some also worry that ChatGPT could be used to spread information that is not true.
Apart from bans, teachers are making changes to their classes to cut off the use of ChatGPT. Some college teachers in the US try to include more speaking exams and handwritten papers instead of homework done on computer, The New York Times reported.
However, not all educators say “no” to ChatGPT. Some Canadian universities are making rules on its use, for both students and teachers. They have no plans to completely ban the tool so far.
1. According to the survey, ________ of the students do their homework with ChatGPT.| A．about 11% | B．over 89% | C．nearly two thirds | D．more than 1,000 |
| A．Cook some food. | B．Translate languages. |
| C．Write stories and emails. | D．Answer all kinds of questions. |
| A．帮助 | B．作弊 | C．说明 | D．聊天 |
| A．The USA. | B．Australia. | C．France. | D．Canada. |
| A．ChatGPT’s new abilities. | B．ChatGPT’s use in middle schools. |
| C．ChatGPT’s influence on education. | D．ChatGPT’s development in the future. |
【推荐3】Technology is developing fast these years. Let’s see some of the high-tech helpers during the COVID-19 pandemic.
| The telemedicine (远程医疗) system With a remote video system, doctors can diagnose(诊断) patients without seeing them in person. Also, doctors from different hospitals can have a meeting by using the system at the same time. This saves a lot of time. Both Huoshenshan Hospital and Leishenshan Hospital have this system. |
| Drones(遥控飞机) warn people in groups In some rural(农村的) places, the police use drones to monitor people in groups. When the drone finds big groups of people, the police will warn them through the loudspeaker on the drone. In some places, people also use drones to disinfect(消毒) their communities. |
| The 3D “hospital” A company in Shanghai printed 15 rooms by using 3D technology. They sent the rooms to Hubei for patients to live in. It only took one 3D printer 24 hours to build all these rooms. Each room is about the same size as your bedroom. |
| The AI system checks for fever At the Mudanyuan subway station in Beijing, an AI system can check people in crowds quickly to see if they have fevers. When people pass by, the system scans people’s faces. The system can check about 300 people in one minute. |
| Smart robots In some hospitals, smart robots helped to deliver food to patients to reduce the risk of infection(传染). The robots also helped to hand out medicine and show the way to people. |
1. Doctors can ________ with the help of the telemedicine system.
| A．go to different hospitals | B．work in Huoshenshan Hospital |
| C．disinfect the communities | D．diagnose patients remotely |
| A．drones | B．3D “hospitals” | C．AI system | D．smart robots |
| A．It can only be built by a company in Shanghai. |
| B．Fifty 3D printed rooms were sent to Hubei. |
| C．The printed room is no bigger than the usual bedroom. |
| D．The company paid lots of money to build these 3D rooms. |
| A．24 | B．30 | C．1,800 | D．18,000 |
| A．a science magazine | B．a travel guide | C．a storybook | D．a museum introduction |
【推荐1】Summer is a great time to improve your child's reading! Reading over the summer can help your child keep up his reading gains during the past school year AND also help prepare him for the next year!
How to sign up:
We are inviting you to sign up for free to help your child be an active reader this summer!
Go to www. Readfun. org.
Select “Parent” (NOT “Teacher”).
Click on the blue “Sign Up”.
What we provide:
We provide you with thousands of free, high-quality articles with questions and activities. To make summer reading easy, we have selected interesting and knowledge-filled articles of different levels. You can go to www. Readfun. org / summer-reading to download and print the articles for free.
How to use:
TIP 1: Articles for summer reading should be accessible, so be sure to choose articles at your child's reading level. Don't be afraid to start with articles of lower grade levels. The important thing is that he reads, reads, reads!
TIP 2: It's also important to help your kid develop good reading habits. Help him keep a good record of his summer reading. Besides, encourage him to discuss what he has read with family members. That way, you will all have a good time.
We wish you and your family a great summer!
1. The first two sentences of the text above are about________.| A．different types of books | B．the importance of summer reading |
| C．the coming school year | D．good places for summer reading |
| A．select “Parent” | B．finish a test | C．choose a tip | D．print an article |
| A．Online teachers. | B．Pen friends' information. |
| C．Articles of different levels | D．Interesting videos |
| A．write | B．discuss | C．compare | D．understand |
| A．introduce a reading programme | B．sell books to school kids |
| C．encourage parents to read more | D．share reading experience |
【推荐2】The first emperor (皇帝) of China, Qin Shihuang, completed a huge number of projects during his rule. Between 221 and 210 B.C., he started the building of the Great Wall. The emperor also ordered the building of a huge army of life-sized terracotta soldiers (兵马俑). These, he hoped, would protect his tomb (坟墓) after his death.
Lost in Time
The soldiers in Xi’an’s terracotta museum are today light brown, but they weren’t always. They began as an army of red, blue, yellow, green, white, and purple. Sadly, most of the colors did not last to the present day. After they were exposed (暴露) to air during digging, the coating under the paint began to fall off. The paint disappeared in less time than it takes to boil an egg, taking away with it important pieces of history.
New Technology
Now new technology is starting to show the army’s true colors. Archeologists (考古学家) have recently discovered an area with more than a hundred soldiers. Many of these still have their painted features (特征), including black hair, pink faces, and black or brown eyes. Chinese and German researchers have developed a chemical liquid (液体) to help save the soldiers’ colors. After they find a soldier or another art piece, archeologists put the liquid on it. They then cover it in plastic(塑料).
Back to Life
Archeologists are also finding colors in the dirt (灰尘) around the soldiers. It’s important not to do anything with the dirt, so the colors won’t be lost. “We are treating the dirt as an art piece,” says Rong Bo, the museum’s leading archeologist. The next challenge (挑战), says Rong Bo, is to find a way to use the colors onto the army again. Once that happens, artists can bring Emperor Qin’s army back to its full, bright colors.
1. What is the passage mainly about?| A．The death of Emperor Qin Shihuang. |
| B．How the terracotta army was colored. |
| C．The true colors of the terracotta soldiers. |
| D．How the soldiers lived during the Qin Dynasty. |
| A．Because they are too old. |
| B．Because they lost their time. |
| C．Because their paint fell off. |
| D．Because they took away the history. |
| A．Archeologists. | B．Artists. |
| C．Researchers. | D．Soldiers. |
| A．The soldiers should stay in their present, brown color. |
| B．People should try to bring back the army’s bright colors. |
| C．Archeologists can only guess at the soldiers’ true colors. |
| D．Artists should be able to paint the soldiers in colors they want. |
| Personal Information of Teachers A.Jane Birch is from America.She speaks 5 languages and has been to 14 counties. She is very popular with students and has many methods of learning foreign languages. B.Jerry Smith is a humorous teacher. He often turns his maths classes into game time. Math is more than numbers and shapes in his class.It can be used to solve real life problems. C.Daisy Chambers,a smart lady ,is good at playing the piano.She has been learning it for ten years. Amazingly,she learns it all by herself.Many students are her fans. D.Rod White is a creative teacher and inventor. He believes that invention is for everyone and everyone can be an inventor. In his class, students find it great fun to do scientific experiments. E.Emily Roy has written many stories. Students love reading her books, She always recommends good books to her students. She plans to write a book to share how reading changes her life. F.Lewis Nichols is an excellent swimmer. He takes part in the winter swimming competition every year. He thinks that swimming in cold water builds up not only his body but also his will. |
