1 . Citywalk is a type of experience of exploring a city in an immersive (沉浸式的) and slow way. Instead of quickly going to crowded tourist spots, people are choosing to explore busy markets, old streets and interesting alleys (小巷) slowly.
Citywalk is very popular with young people. They are often too busy with their work to explore local areas. Citywalk lets them do this in a fun and relaxing way. This shows that people are starting to want a slower way of life. They want to enjoy things more and don’t want to be in a rush all the time.
Beijing is working hard to fix up old parts of the city. People there are also using new and creative ideas to make the city keep up with the time. In the last few years, Beijing has made many changes to the area around the Liangma River. People have fixed the river banks, planted more trees and flowers, added lights and cleaned water. They want to make the area nicer and better for the environment. As a result. they built an 800,000-square-meter riverside park next to the Liangma River. It helps turn the Liangma River into a “people-friendly river”, being a nice place to visit for people in Beijing.
Citywalk is becoming more and more welcome, and more and more people are walking on the streets to experience the beauty of the cities. We can do this now because many people are working silently to keep our cities clean, safe and lively.
1. How does the writer lead to the topic in the first paragraph?| A．By asking questions. | B．By explaining what citywalk is. |
| C．By listing numbers. | D．By telling stories. |
| A．A slower way of life | B．Exploring local areas. |
| C．The change of people. | D．Young people’s daily work. |
| A．Because people want to become healthier. |
| B．Because people are becoming richer and richer. |
| C．Because people don’t want to be in a rush all the time. |
| D．Because many people are working silently to make our cities suitable for a citywalk. |
| A．To introduce a new life experience Citywalk |
| B．To show the rapid development of our country. |
| C．To tell people there’s no need to work hard. |
| D．To ask people to fix up old cities. |
| A．Are you happy now? | B．Can you become quiet? |
| C．Do you explore the city? | D．Do you know Citywalk? |
2 . Death Valley is famous for its moving rocks. Since the early 1900s, visitors to Racetrack Playa, a dry lake bed in California, have wondered how the rocks can move on their own.
These rocks leave long tracks (轨迹) behind them. The long tracks show that the rocks have moved along the ground. Those rocks move only at night and only move once every year or two. And they don’t move at the same time or in the same direction. But how do they move? How can a 350-kilogram rock move? Now scientists have known the key to the question!
Here’s how it happens.
Death Valley is one of the hottest places in the world, but it is cold at night. When it rains, the hard ground becomes soft and wet. When it gets cold enough, the water on the ground will change into very thin ice. Then the strong wind can move flat rocks along the flat ground. In the morning, the sun comes up and dries the ground.
Moving rocks can be found at other places in the world as well, but Death Valley is the most famous.
根据材料内容选择最佳答案。1. What interests visitors most in Death Valley?
| A．The mountains around Death Valley. | B．The scenery of Death Valley. |
| C．The reason why the lake is dry. | D．The secret of the moving rocks. |
| A．The dry lake bed. | B．The long tracks behind them. |
| C．The weight of the rocks. | D．The shapes of the rocks. |
| A．Hot in the day and humid at night. |
| B．Cool in the day and dry at night. |
| C．Hot in the day and cold at night. |
| D．Cold in the day and windy at night. |
| A．Culture. | B．Health. | C．Nature. | D．Animals. |
| A．A Dry Lake Bed | B．Moving Rocks in Death Valley |
| C．Tracks of Rocks | D．Soft and Wet Ground |
3 . We usually think that plants are quiet in the natural world. Grass doesn’t cry when you cut it; flowers don’t scream when they’re picked. But our human view of the world misses quite a lot. Plants talk to each other all the time.
Over the years, scientists have reported that different types of plants, from trees to tomatoes, release compounds (复合物) into the air to help neighboring plants.
“Recently, a team led by Junji Takabayashi of Japan’s Kyoto University has offered some explanations,” reported Time magazine.
To start out, they grew potato plants in two plastic boxes connected by a tube (管子). One plant had been bitten by insects,
They found that when insects bite leaves, the plant doesn’t sit quietly. It releases a chemical called BOVC into the air. These chemicals carry a smell that neighboring plants can sense.
“It is surprising that plants don’t release a chemical until they get a warning message from their infested neighbours,” scientists said, “These findings may help farmers with the control of insects which do harm to their plants.”
根据材料内容，从下面五个选项中选出能填入文中空缺处的最佳选项，使短文意思通顺、内容完整。| A．Their language in chemical. |
| B．while the other plan t wasn’t bitten. |
| C．This way, the neighboring plants understand the danger. |
| D．Later, the same scientists place insects on the plants that hadn’t been bitten. |
| E．But how plants receive and set on many of these signals is still unknown. |
4 . When we think of communication, we usually think of speech. This is because language itself happens mainly over sound. Since sound travels more than four times faster in water than in air, it’s no surprise that a number of animals in the ocean also use sound as a way of communication. Many species (物种) of fish use sound for communication.
The ocean is full of animals using sound for communication, but this may be changing. Because of human-made noise, the ocean sounds very different than it did before. In our searching for both understanding and having communication with occan species, we have become our own worst enemy. Ship noise and wind farms—all these activities are creating unpleasant sound in the ocean. Too much noise makes it difficult for fish to avoid enemies so they must compete with the noise of shipping traffic.
Jason Bruck and other researchers have paid their attention to the dolphin communication and the problem of ocean noise. They are looking at how even minimal (极小的) amounts of background (背景) noise might make it difficult for dolphins not only to communicate with each other but also to pay enough attention to learning new skills.
Paige Stevens is studying how noise influences dolphins’learning abilities. Just as we see in humans, background noise may make it difficult for dolphins to concentrate on the task at hand. Steven’s research could show that it’s getting so loud in the ocean that dolphins might be losing their abilities to live a normal life.
Humans are interested in communicating with ocean animals. Unless we find a way to turn down the volume (音量), we won’t ever hear what they might want to tell us.
根据材料内容选择最佳答案。1. What can we know about sound?
| A．Sound travels faster in air than in water. |
| B．There is little loud sound in the deep ocean. |
| C．Some ocean animals use sound to communicate. |
| D．Human-made noise is good for some ocean animals. |
| A．animals like using language to communicate |
| B．people make noise to study ocean animals |
| C．people should stop communicating with ocean species |
| D．the background noise can keep dolphins from living normally |
| A．pay attention to | B．put off | C．turn down | D．prepare for |
| A．To tell us some ways to talk to animals. |
| B．To call on people to reduce noise in the ocean. |
| C．To introduce communication ways between humans and ocean animals. |
| D．To encourage people to do more research on animal communication. |
| A．Living in the Ocean | B．From the Ocean to the Land |
| C．Animal Communication | D．Communication in the Ocean |
5 . Each of us has an ID card (身份证). Did you know that a seed can have one? The “card” shows that the seed is at China’s Seed Bank in Beijing.
A seed’s journey to the seed bank starts with a census (普查). China’s latest census of agricultural (农业的) seeds started in 2021 and ended in January this year. Workers collected more than 139,000 new seeds from all over the country. They then arrived at the seed bank.
When seeds first come in, they each get a number for their “physical examination” For example, workers put all kinds of rice from different farms together. Then they put them into groups according to the seeds’ look or taste.
Next, workers check the seeds to make sure they’re healthy and all the unhealthy ones are given up. A worker at the seed bank showed CCTV News a seed that had a large insect inside it.
“A seed like this should not be saved,” he said.
With the bad seeds gone, researchers then test the good ones to see how likely they are to grow. The seed bank has a quick, smart way of doing this: Workers test the seeds and use the information they get to know about their growth. Workers dry and weigh the best seeds after several tests. Then, they’re stored in a super cold fridge at -18 C.
China’s seed bank keeps all the seed information safe and helps people learn about them. This can help develop new plants that can grow better and deal well with hard environments, ensuring the food security (安全) of the country.
根据材料内容选择最佳答案。1. What is a census of seeds?
| A．Counting the number of seeds in an area. |
| B．Examining the safety of the country’s seeds. |
| C．Recording all of the seeds at the seed bank. |
| D．Collecting as many different seeds as possible. |
| A．birthplace | B．weight | C．look or taste | D．growth |
| A．collecting | B．saving | C．checking | D．tasting |
| A．To pick healthy seeds. | B．To know about seeds’ growth. |
| C．To test their temperature. | D．To pick unhealthy seeds. |
| A．To protect our country’s food safety. |
| B．To deal with problems caused by climate change. |
| C．To know about future seed production. |
| D．To learn the development of agriculture. |
6 . Have you ever seen pandas that aren’t black-and-white? Scientists have found that there are brown-and-white pandas living in a mountain in China.
Scientists studied the genes (基因) of different pandas in the wild and they have found that pandas with brown-and-white coats are the result of changes in the natural environment. To understand what lies behind the special color, the scientists studied Qizai, a brown panda in Hanzhong. He is now the only brown panda in captivity (圈养).
When compared with hair from three black-and-white pandas, Qizai’s brownish coat had fewer and smaller melanosomes (黑素体). What’s more, the melanosomes were more likely to be differently shaped, the study team found. The scientists then collected genetic information about Qizai and pieced together his family tree.
The scientists studied the genetic information from Qizai’s family members and compared it with the genetic information from 12 black-and-white pandas from the Qinling Mountains and 17 black-and-white pandas from other places in China.
While none of Qizai’s family members had brown coats, the scientists were able to show that his parents and son all had one copy of the recessive trait (隐性特质) on a certain gene, while Qizai had two copies. The scientists then studied another 192 black-and-white pandas. The gene change causing the brown coats was only found in two pandas from the Qinling Mountains in Shaanxi, not Sichuan province, where most China’s pandas live.
It’s not clear what caused the genetic change. Scientists said it must be because of the environment of the Qinling Mountains, which is different from that of Sichuan. “For those who care about pandas, this is a great development,” said Wang, who worked in the mountains for 10 years. Wang said he was glad to see the scientists’ efforts in trying to work out this scientific question.
根据材料内容选择最佳答案。1. What is the fact of Qizai?
| A．He lives in Sichuan province. |
| B．He is a black-and-white panda. |
| C．He has a family of twelve members. |
| D．He has two copies of the recessive trait. |
| A．The results of the study. |
| B．The methods of the study. |
| C．The difficulties of the study. |
| D．The advantages of the study. |
| A．Pandas’ family trees. | B．Pandas’ genetic information. |
| C．Pandas’ common coats. | D．Pandas’ living environment. |
| A．Hopeful. | B．Supportive. | C．Doubtful. | D．Uncertain. |
| A．To give advice. | B．To present a problem. |
| C．To offer knowledge. | D．To share an experience. |
7 . Personal information is like the keys to your house. Giving these keys to the wrong people can be like allowing a stranger to get into your house, and you may not even know it. If someone has your personal information, they could pretend (假装) to be you, find out where you live, or even use your personal information to buy things.
| Your personal information may include: full name date of birth address phone number email address usernames and passwords for online accounts or email accounts parent or carer’s bank card which school you go to photos that show where you live or your school uniform | Tips on keeping personal information safe: ▶Avoid using your full name online—choose a screen name that does not include your real first or last name or use a nickname (昵称) instead. ▶Don’t lie about your age — you have to be at least 14 years old to use many social media apps. This is because some of them may not be safe for kids. ▶Only make friends with people you kno —if you receive a friend request (申请) from someone you don’t know, it is best to delete (删除) their request. ▶Don’t fill in all the fields on forms—if you sign up (注册) for something online, like a competition or quiz, only fill out the fields that are marked with “*”, which means that it is a required field. |
1. What does the writer think of personal information?
| A．It is important. | B．It is meaningful. | C．It is interesting. | D．It is useless. |
| A．Dream. | B．Birthday. | C．Nickname. | D．Shoe size. |
| A．lixiaohua | B．huahua | C．haohaoxuex | D．lihua123 |
| A．Because kids might not know how to use apps. |
| B．Because not all of the apps are suitable for kids. |
| C．Because kids may follow people they don’t know. |
| D．Because it is difficult for kids to fill in forms correctly. |
| A．How to buy things online. | B．How to tell the bad people in life. |
| C．How to make full use of the Internet. | D．How to protect personal information. |
8 . 
It is said that people now love keeping flat-faced (扁脸的) dogs like French bulldogs as pets, because they are so cute. Some people call these dogs “lazy” because they get sleepy more easily than other dogs during the day. However, according to a recent study, these cute dogs are having a hard time.
Scientists watched 92 family dogs of different kinds while they were sleeping. During the study, the dogs spent about three hours with their owners in the sleep lab. With nothing special to do, the dogs soon fell asleep. At that time, the scientists recorded the dogs’ brain activities with an EEG (脑电图).
The study found that the flat-faced dogs slept more than the other kinds. This is because they don’t get enough sleep at night. Scientists explained that, because of their special head structure, these flat-faced dogs usually have sleep apnea (睡眠呼吸暂停症). During their sleep, they can’t get enough air and may find it difficult to breathe, which makes them repeatedly wake up.
Some French bulldogs may sleep while holding a toy ball in their mouths. Owners may think this is funny. But they’re actually doing it to keep their airways (呼吸道) open so they can breathe more easily.
This, however, is only one of the health problems dogs have because of breeding (培育). According to the website Pet Helpful, a lot of pet dogs are bred based on what people like, such as shorter legs, heavier bodies and larger ears. There is no doubt that bulldog is a victim of it.
Lots of pet lovers are calling for people to respect animals as they are. Breeders must take the health of pets seriously instead of just for cuteness. After all, we are not supposed to build our fun on others’ suffering.
根据材料内容选择最佳答案。1. How does the writer start the passage in Paragraph 1?
| A．By listing some facts. | B．By telling a joke. |
| C．By asking a question. | D．By making a survey. |
| A．It studied 92 French bulldogs. | B．Dogs couldn’t fall asleep in the lab. |
| C．Dogs were put into the lab all alone. | D．It recorded dogs’ brain activities with an EEG. |
| A．Because it’s funny to do so. | B．Because the ball tastes delicious. |
| C．Because the ball can help them breathe. | D．Because their owners tell them to do that. |
| A．Someone who looks very cute. |
| B．Someone who works in science. |
| C．Someone who uses their power to hurt others. |
| D．Someone who is hurt because some bad things happen. |
| A．People are choosing pets in a healthy way. |
| B．People should put health first when breeding pets. |
| C．We should stop breeding more cute kinds of dogs. |
| D．Only flat-faced dogs face health problems because of breeding. |
9 . Do you feel sleepy on rainy days? If the answer is yes, you’re not alone. Many people feel the same way. But do you know why?
One of the reasons is that there’s little sunshine on rainy days. Our brain will have less serotonin (血清素) and more melatonin (褪黑素) if there’s not enough sunlight. Serotonin helps us feel good and vigorous, while melatonin makes us feel sleepy. As a result, we may want to go to sleep and even feel a bit sad when it’s rainy.
The humidity (湿度) of a rainy day is another reason. As it rains, the air becomes wetter than usual. It’s more difficult for our sweat (汗水) to dry in weather like this, so our body has to work harder to stay cool. This can make us feel tired.
Moreover, the sound of rain, a type of pink noise, will make us feel sleepy too. Like white noise, pink noise includes all the sound frequencies (频率) humans can hear, but it has fewer high frequencies than white noise. This makes pink noise sound softer. Studies show that people’s brain waves (电波) will become fewer when they hear pink noise, so they’ll fall asleep more easily.
Now you can understand why you’re sleepy on rainy days. Then what can you do if you don’t like that feeling? Well, you can get as much natural light as possible and keep yourself busy. Also, you can use a machine to make your room dry. In this way, you won’t feel sleepy any more.
根据材料内容选择最佳答案。1. How does the writer start the text? ________
| A．By telling a story. |
| B．By asking a question. |
| C．By using a picture. |
| D．By listing numbers. |
| A．Active. | B．Bored. | C．Safe. | D．Afraid. |
| A．White noise includes fewer high frequencies than pink noise. |
| B．People will have more brain waves when they hear pink noise. |
| C．It’s difficult for people to fall asleep when they hear pink noise. |
| D．The softer the noise sounds, the more easily people will feel sleepy. |
| A．Two. | B．Three. | C．Four. | D．Five. |
| A．The reasons why people need enough sleep. |
| B．Some tips on keeping healthy in daily life. |
| C．Some ways to help people sleep better on rainy days. |
| D．The reasons why people are sleepy in rainy weather. |
As
In fact, a yellow room makes most people feel
Why?
