Teenagers are advised to get eight to ten hours of sleep each night. However, most of them fail to get enough sleep because of heavy schoolwork. And plenty of young people are experiencing a sleep problem, which increases their risk of mental ill-health (精神健康状况不佳) . Have you ever thought the mobile phone can help teenagers manage their mental health by supporting a good night’s sleep?
Sleep Ninja is a free app created by the Black Dog Institute, a mental health research organization. It is the only app that is specially designed to improve teenagers’ sleep. So far, the results have been encouraging. The app helps teenagers get more sleep and reduce anxiety.
According to a study, 90% of the app users showed some improvements in insomnia (失眠) and 60% reported improvements in sleep quality. At the same time, the rate of depression (抑郁症) dropped from 77% at the start of the study to 44% after using the app.
Sleep Ninja is not only helpful but also easy to use. Those who use the app only need to set a time when they need to get up in the morning. Then the app will work backwards (向后) , deciding when they should be in bed.
It will also give them a warning to start a pre-bed habit. Seeing the warning, they’d better take a hot shower, brush teeth and get ready for sleep.
Besides, the app offers other useful ways to teenagers to help them get into a sleep habit. For example, it shows them how to set their things up in the bedroom, how to reduce terrible thoughts at night and what to do during the day to improve their sleep.
1. The underlined word “anxiety” means “the state of feeling ________”.| A．angry | B．nervous | C．excited | D．satisfied |
| A．What is Sleep Ninja? | B．What does the study show? |
| C．Why is Sleep Ninja helpful? | D．How does Sleep Ninja work? |
| A．Listen to loud music at night. | B．Take a cold shower before bed. |
| C．Clean the bedroom before bed. | D．Try to avoid terrible thoughts at night. |
| A．The study on different sleep apps. | B．The importance of having a good sleep. |
| C．An app that helps with teenagers’ sleep. | D．The ways to improve teenagers’ sleep. |
相似题推荐
【推荐1】Umbrellas are certainly one of life’s necessary helpers. But as anyone ever caught in a heavy rain will tell you, they’re far from perfect. So, many creative designers made efforts to challenge. Here are three unusual umbrellas that can solve the rainy day problems:
Senz
Problem: Common umbrellas love to invert(翻转) when it’s windy.
The Senz umbrella changes the found shape into the one that is long in the back and short in the front. The design is much stronger against even strong against even strong winds, and according to their tests, it won 't invert in a windy storm
Kazbrella
Problem: Once closed, umbrellas drip(滴水)all over everything and they need a lot of room to open up.
The Kazbrella tries to solve this problem. It opens in a special way. When closed, it looks like the common umbrella upside down, but when it opens, it is similar to the common one. The design allows the wet side of the umbrella to be inside once you fold it. As a result, getting in and out of your car is not a problem. You can close Kazbrella into the smallest space of a car door, remaining dry.
Rain shield
Problem: Rain can hit you from all directions.
In the face of a heavy rainstorm, a little more surface area would be a big help. So the Rain Shield has been given an extension(延伸)to one side, giving the protection from the side way rain and lowering the risk of being invert. And its bendy (弯曲)design means it is easy to take.
Don't you think that these umbrellas are fascinating? The good news is that you can buy Sen and Kazbrellas in London now.
1. According to the first paragraph, we know that the common umbrellas__________| A．are useful but not perfect enough |
| B．can only be used in a heavy rain |
| C．can protect us very well in a heavy rain |
| D．are challenges for creative designers |
| A．sign | B．weight | C．shape | D．color |
A． | B． |
C． | D． |
| A．it will not drip all over everything |
| B．it can protect you from sideway rain |
| C．it's easier to get in and out of the car |
| D．it's not convenient enough to take |
Two breakfasts are better than none. Scientists followed 600 middle school students as they progressed from fifth to seventh grades. They found that children who didn't eat breakfast were fatter than two-breakfasters. | A company from Singapore develops a new app called HEY! Shake. It allows viewers (观众) to interact (交流) with TV and video screens. It helps viewers buy things in the program simply by shaking their phones. |
Let's wear real plants as necklaces (项链) and bracelets (手链)! The plants can keep growing for weeks without water or soil (土壤). They can be worn for two or four weeks before growing off their metal base. You can then move them into flowerpots (花盆). | Many parents want their children to give a public performance. But most children do not like to show their talents in front of others. Educators say parents need to be very careful about using the words like "don't be shy" and "useless" when they are talking to their children. |
1. Children who don't eat breakfast may become _______.
| A．shorter | B．taller | C．thinner | D．fatter |
| A．get some money | B．buy things on TV |
| C．clean video screens | D．develop health |
| A．will have a sore neck | B．must pay more money |
| C．needn't water them | D．can't take a shower |
| A．push their children | B．encourage children |
| C．be angry with children | D．be careful about words |
| A．The 600 middle school students are fatter than the others. |
| B．Children should give performances when they are in public. |
| C．The plants can be moved into flowerpots after you wear them. |
| D．No matter when you want to buy things, just shake your phone. |
【推荐3】
 | Artemis is the world’s fastest walking humanoid(人形的) robot. It stands at 142 cm and weighs 38 kg. It was the work of researchers from the University of California Los Angeles. The team plans to show off Artemis’s full abilities at an international robotics competition this July. |
 | Meet Pearl My name’s Pearl. Yes, I’m a Chihuahua. I’m a two-year-old girl. They say I’m shorter than a television remote control. Am I? And am I also about the same length as a U.S. dollar bill? Well, anyways, they say I’m now the shortest living dog in the world. Not bad to have my own world record! Woof, Woof! |
 | 3D-Printed Cake, Anyone? A 3D printer could soon become the next must-have household appliance. Scientists have successfully used it to make the world’s first 3D-printed cheesecake. The cake was made of seven edible(可食用的) food “inks”. While 3D food printing is still in its early stages, it will probably change the way we prepare and enjoy food. |
| A．Magic World | B．Science and Technology |
| C．Strange Study | D．Guinness World Records |
| A．Soccer is Artemis’ Favorite. | B．The Newest Walking Humanoid Robot. |
| C．Watch Out, ARTEMIS is Here. | D．Who Can Win the Game, Human or AI? |
| A．Because it’s Pearl’s favorite toy. | B．Because it’s a good comparison. |
| C．Because Pearl wants to buy one. | D．Because Pearl is good at using it. |
| A．Pearl is the same length as a U.S. dollar bill. |
| B．Artemis has showed its full abilities to the world. |
| C．The shortest Chihuahua in the world is less than 38 cm. |
| D．The 3D printer will greatly change the habits people cook. |
| A．Lovely and delicious. | B．Realistic and expensive. |
| C．Amazing and special. | D．Completed and enjoyable. |
David Bennett, a 57-year-old man from the US, received the world’s first pig heart transplant in January, 2022. He died two months later, on March 9.
It may sound like a failure, but it actually is a big step forward for xenotransplantation（异种器官移植）.
Xenotransplantation has been a hot topic in medical research for many years, as doctors and scientists look for ways to solve the big problem of organ transplant waiting lists. In the US alone, over 100,000 patients are on a list waiting for new organs. Many of them will die before getting their chance to receive a heart, lung or kidney. Therefore, medical science has turned to animal organs.
Doctors have experimented with xenotransplantation since the early 20th century. There are few success stories. Usually, patients’ bodies reject（排斥）the animal organs. Bennett lived much longer than other xenotransplant patients. That’s because scientists removed pig genes（基因）that would cause fast rejection. Then they added human genes to help the body accept the organ.
“A lot of new information will come out that will help the field move forward at a faster speed.” Muhammad Mohiuddin, director of the transplant program, told The Guardian.
In another xenotransplant success, in 2021, doctors at New York University joined gene-edited pig kidneys to a human patient’s blood vessels（血管）outside of the body. Also that year, doctors at the University of Alabama put the gene-edited pig kidneys inside a patient’s body.
Though these recent successes were short-lived, they show that there may be a way forward for xenotransplants.
1. What does the underlined “It” in paragraph 2 refer to?| A．Xenotransplantation. | B．The world’s first heart transplant. |
| C．The transplant program. | D．The pig heart transplant Bennett received. |
| A．Because it can make people live longer. |
| B．Because new organs are in short supply. |
| C．Because human bodies reject the animal organs. |
| D．Because many people die after receiving a new organ. |
| A．The transplanted organ was put outside of his body. |
| B．Human genes that would cause fast rejection were removed. |
| C．The transplanted heart was gene-edited to avoid fast rejection. |
| D．The transplanted organ came from a pig instead of other animals. |
| A．The recent xenotransplantation successes were meaningless. |
| B．Over 100,000 patients are waiting for new organs around the world. |
| C．Doctors at New York University put pig kidneys inside a patient’s body. |
| D．Doctors have experimented with xenotransplantation for about 100 years. |
| A．Xenotransplantation is developing step by step. |
| B．Patients receiving xenotransplantation won’t die. |
| C．Xenotransplantation does harm to people’s health. |
| D．Xenotransplantation is sure to solve all the problems. |
【推荐2】Nowadays, it seems that we cannot live without technology. We learn, work and relax by using phones, computers, iPads, AI robots and so on. Now, let’s see what’s going on in Julie’s life.
Julie usually wakes up at the ring of a mobile phone. Then, she eats her breakfast to a video on the phone. When she gets to her company, she deals with the business on the computer. And she often downloads (下载) and stores things that she needs on her iPad. When she needs something, she can just turn on the iPad and search for it. She carries the iPad wherever she is on business because it’s light. When she is at home in the evening, she sometimes uses ChatGPT, a smart AI chat robot, to write her projects. She only needs to type in some key words and then she can get some ideas in a second. It can make her use less time to do more things. In the late evening, she always falls asleep at the soft music from Xiaodu.
Julie lives with technology, and so do we. However, technology brings us some problems at the same time. Staring at screens too much is bad for our eyes. Many of us are near-sighted (近视的) or have other eye problems. AI is making some of us unwilling to think and explore on our own. We may copy ideas from AI robots. We may even like chatting in the virtual (虚拟的) world better because of so many chat robots.
So, I think that technology is a double-sided sword (双刃剑). We should use technology correctly and wisely to make our life easy, colorful and convenient.
1. What does Julie probably do?| A．She is a manager. | B．She is a writer. |
| C．She is a student. | D．She is a worker. |
| A．A computer. | B．An iPad. |
| C．An AI robot. | D．An intelligent translator. |
| A．By discussing. | B．By providing reasons. |
| C．By expressing opinions. | D．By giving examples. |
| A．ChatGPT can do housework for us. |
| B．AI robots will take the place of us one day. |
| C．People may communicate less with each other in real life. |
| D．Julie doesn’t like downloading and storing things that she needs on her iPad. |
| A．How does Julie spend her day? |
| B．How does technology help us? |
| C．How does technology influence our life? |
| D．How does technology change our habits of life? |
When visitors to the Palace Museum feel a need to sit down for a cup of tea or find a bathroom without a long line, they soon will be able to turn to their smart phones for the information they need.
This modern solution comes thanks to an agreement signed on Friday by the museum and Huawei Co., the telecommunication giant, to build a “smart network” using 5G technology. Under the agreement, 5G Wi-Fi signals will cover the Palace Museum, China’s royal palace from 1420 to 1911.
“It’s important to always stay close to the latest technology to better serve the public,” said Shan Jixiang, former director of the Palace Museum. Shan said there is still much room for improvement in the handling of a huge number of cultural relics,such as when the priceless painting “Along the River During the Qingming Festival” is exhibited again in the future. When it was last exhibited in 2015, visitors stood in long lines until 3 am to have a look. The museum ended up preparing fast food to serve the hungry visitors. “I don’t want that scenario to happen again,” Shan said. “Our operation can be done in a more scientific way.
The new system will also make use of the closed-cameras that are set up all over the Palace Museum to safeguard the museum’s precious relics. More than 1.86 million of them are housed at the museum, which recorded nearly 20 million visits from the public last year. “How can we make sure no single visitor who might have evil ideas threatens these treasures?” Shan said. “After adopting the internet of things, we can instantly detect any motion involving the relics to prevent such threats.”
The 5G network also will be used to improve remote meeting through webcams, which will discuss with scholars to jointly find the best answers for repair and store issues.
1. What do we know about the Palace Museum?| A．Its visitors won't have to queue up for the bathroom. | B．It has served as China’s royal palace for over 500 years. |
| C．It will cooperate with Huawei to promote its management. | D．It will set up advanced television cameras only for the purpose of safety. |
| A．disaster | B．situation | C．operation | D．exhibition |
| A．It is better than any other museums. | B．It has a rich collection of cultural relics. |
| C．It enjoys great popularity all over the world. | D．It faces a tough challenge of protecting relics. |
| A．exhibit many paintings again | B．make fast food for visitors |
| C．safeguard the relics instantly | D．improve more face to face meetings |
| A．A Feast for safeguard | B．A Revolution in Exhibition |
| C．A Protector of Cultural Relics | D．A Connection Between Old and New |
【推荐1】Plants are rooted (扎根) in one place. They can’t run away from danger or walk over the sunny side of the garden. So they have to develop some special ways to protect themselves and grow in the nature.
Some scientists found that plants can sense their surroundings (环境). You’ve all seen plants grow towards light which is called phototropism. Even if the top of them are cut off, the plants don’t change the direction. They sense the light and tell the rest of the plants how to grow then.
Some plants “talk” with each other by using “airmail (航空信)” to warn each other of danger. Researchers in England cut the leaves of cabbages. The cabbages then produce a tiny number of chemicals (化学物质) that protect themselves from some insects. Strangely, the cabbages which aren’t cut nearby also begin to give off their own different chemicals. That means they seem to receive a warning from their cabbage neighbors.
Most amazingly, plants have a great system (系统) of communication that can connect nearly every plant in a forest by fungi (真菌). It connects the roots of different plants to each other. Scientists call the system the “wood wide web”, similar to the Internet we use. Using the network, plants can communicate and share information and even food with each other.
Whatever the case is, plants are stranger and more wonderful than we can imagine.
根据短文内容选择最佳答案。
1. The underlined word “phototropism” in paragraph 2 means ________.
| A．摄影技术 | B．避光性 | C．向光性 |
| A．protect themselves | B．sense the light | C．change the direction |
① sense ② thinking ③communication ④ hearing
| A．①④ | B．②④ | C．①③ |
| A．making noises | B．connecting the roots | C．using the Internet |
| A．Plants can protect themselves and grow in the nature in some special ways. |
| B．Even if the top of the plants are cut off, they can still change the direction. |
| C．Some plants can communicate with each other and warn each other of danger. |
【推荐2】As middle school students, we have become quite familiar with the “double reduction” policy (双减政策). In July, 2021, the government put the policy into practice to reduce students’ stress caused by too much homework and off-school training. Primary and junior high school students now are allowed to stay at school for two hours after school. Students can also take part in after-school activities and develop their hobbies. And what do people think of this big change in education?
Wang Weiqi, a student at a junior high school in Guangzhou, has less homework now. “The teachers have cut out the repetitive (重复的) exercises in the homework, which I welcome a lot,” he said, “That helps me have more time on basketball game after school. My school even holds a friendly match for us on each Friday.” “We have a reading course after classes end at 4 p. m. We can read poems and talk folk stories. I really enjoy the reading time.” said Yang Zhuoyi, a primary school student in Beijing. “Then we do our homework at school. I don’t have to do homework after going back home.”
When students leave school, they can see their parents, instead of their grandparents, waiting outside to pick them up. Students are happy about it, and so are their parents. “It’s good that I can come to pick up my daughter,” said Mrs Zhang, a mother of a second-grader. “But I have to buy some extra (额外的) books for her. Because I want her to know that learning is still important.”
Most people know and support the policy. They believe it would allow children to enjoy a happier childhood. However, there are some parents who are not quite as supportive of the policy. They are afraid that their children will end up paying less attention to their schoolwork.
1. The “double reduction” policy is to _________.| A．reduce students’ stress | B．reduce teachers’ works |
| C．improve students’ sleeping habits | D．improve parents’ educational skills |
A． | B． | C． | D． |
| A．She has no time to pick up her daughter. |
| B．She is willing to accept the policy. |
| C．She has different opinions with her daughter. |
| D．She does nothing with her daughter’s study. |
| A．Children can have a happy childhood. | B．People have different ideas on the policy. |
| C．Students’ opinions on after school activities. | D．Teachers are easy to agree with the policy. |
| A．By listing numbers. | B．By making up a story. |
| C．By giving examples. | D．By asking questions. |
【推荐3】Mum and Dad—they’re two of the most important people in your life. Here are some ways you can stay close, get along, and build a strong relationship with them.
Spend time together. Don’t play a computer game or watch TV by yourself. Ask your mom and dad to play with you, go outside together, play a game, or read a book out loud. Try to spend more time together.
Share your feelings and ask for help. Many kids say they’d like their parents to help them when they’re unhappy. Tell them if you’re sad or have a problem. They will be happy to help you.
Be kind and caring. Little things will mean a lot to your mum or dad. You can brighten a parent’s day with a hug, a card, or a joke. It is also lovely when a kid cleans up his or her room without being asked. It’s important to show that you care for each other. Kids and parents show their love by respecting each other and being caring, polite and thoughtful.
Do your best at whatever you do. You don’t have to be perfect, but when you do your best, you make your parents proud. It makes them happy to see how you’re turning into such a great kid. Why? Because it lets them know you’re doing a good job.
1. Which is not advised when spending time with parents according to the writer?| A．Read a book out loud. | B．Watch TV with parents. |
| C．Go outside together with parents. | D．Play a computer game by oneself. |
| A．Stay alone. | B．Share their feelings and ask their parents for help. |
| C．Play a game with their parents. | D．Tell their parents they are fine. |
| A．make sb. busy | B．make sb. sad | C．make sb. happy | D．make sb. nervous |
| A．Two ways. | B．Three ways. | C．Four ways. | D．Five ways. |
| A．Spending More Time with Your Parents | B．Talking to Your Parents |
| C．When Your Parents Fight | D．Getting Along with Your Parents |
