1 . Twelve-year-old Catherine has a lot of friends—632, actually, if you count up her online friends. And she spends a lot of time with them.
But is it possible that Catherine’s online friendships could be making her lonely? That’s what some experts believe. Connecting online is a great way to stay in touch, they say. However, some experts worry that many kids are so busy connecting online that they might be missing out on true friendships.
Could this be true? During your parents’ childhoods, connecting with friends usually meant spending time with them in the flesh. Kids played Scrabble around a table, not words with friends on their phones. When friends missed each other, they picked up the telephone. Friends might even write letters to each other.
Today, most communication takes place online. A typical teen sends 2,000 texts a month and spends more than 44 hours per week in front of a screen. Much of this time is spent on social media platform.
In fact, in many ways, online communication can make friendships stronger. “There’s definitely a positive influence. Kids can stay in constant contact, which means they can share more of their feelings with each other,” says Katie Davis, co-author of The App Generation.
Other experts, however, warn that too much online communication can get in the way of forming deep friendships. “If we are constantly checking in with our virtual world, we will have little time for our real-world friendships,” says Larry Rosen, a professor at California State University. Rosen also worries that today’s kids might mistake the “friends” on the social media for true friends in life. However, in tough times, you don’t need anyone to like your picture or share your blogs. You need someone who will keep your secrets and hold your hand. You would like to talk face to face.
1. What is the purpose of the first paragraph?A.To tell about true friends. | B.To start a discussion. |
C.To encourage online friendships. | D.To summarize(总结) the text. |
A.In any case. | B.In public. | C.In person. | D.In advance. |
A.Unconcerned. | B.Positive. | C.Worried. | D.Confused. |
A.Teenagers need to focus on real-world friendships. | B.It’s easier to develop friendships in real life. |
C.It’s wise to turn to friends online. | D.Social media help people stay closely connected. |
2 . Are you happy with your appearance?
“Almost all the girls with single-fold eyelids (单眼皮) in our class have had double eyelid operations,” Zeng, a Senior 2 student from Chengdu, told Xinhua. Zeng had the same surgery done this summer.
From popular photo-editing apps to plastic surgery (整形手术), it seems that large eyes, pale skin and a skinny body are the only standard for beauty these days. But can following this standard really make us feel good about ourselves?
“Many teenagers are upset about their appearance because they believe in unrealistic standards of beauty,” experts say.
However, trying to live up to strict standards can make us feel anxious. What troubles us is not just our “imperfect” looks, but the fact that we criticize ourselves too much.
A.Beauty comes in all shapes and sizes. |
B.Body image anxiety is common among teenagers. |
C.Guys care just as much as girls do about their body image. |
D.Some teenagers might feel negative about their appearance. |
E.It’s common for teenagers to feel confident about their appearance. |
F.She and many of her classmates believe bigger eyes look more beautiful. |
G.Perfect faces and bodies are everywhere in advertising, TV shows and social media. |
3 . Blind people have long desired for brightness, but scientists don’t have the technology. To bring that one step closer to reality, Zhiyong Fan, a materials scientist of the Hong Kong University of Science and Technology, developed a new artificial eye recently. The device, which is about as sensitive to light and has sharper vision and a faster reaction time than a real eyeball, may outperform human eyes.
The human eye owes its wide field of view and clear eyesight to the retina (视网膜) — an area at the back of the eyeball covered in light-detecting cells. The design for a new artificial eye is based on the structure of the human eye and uses a friendly light-sensitive material. At the back of the eyeball, an artificial retina is lined with Nan scale light sensors (纳米级光感器). Those sensors measure light that passes through the lens (晶状体) at the front of the eye. Wires attached to the back of the retina send signals from those sensors to the processor, similar to the way nerve networks connect the eyeball to the brain.
“In the future, we can use this to replace damaged human eyes,” says the lead designer. In theory, this artificial eye could see more clearly than the human eye, because the artificial retina contains about 460 million light sensors per square centimeter while a real retina has about 10 million light-detecting cells per square centimeter. Besides, the artificial eyeball records changes in lighting faster than human eyes can — within about 30 to 40 milliseconds, rather than 40 to 150 milliseconds. Although its 100-degree field of view isn’t as broad as the150 degrees a human eye can take in, the device can see as well as the human eye in poor light.
Hongrui Jiang, an electrical engineer at the University of Wisconsin, though, thinks engineers need a much more practical and efficient way to produce vast series of tiny wires on the back of the artificial eyeball to give it superhuman sight, which is super hard to achieve.
1. Why does Zhiyong Fan develop the artificial eye?A.To replace people’s real eyeballs. | B.To gain a sharper vision. |
C.To help the blind regain their eyesight. | D.To help normal eyes perform better. |
A.The design of the artificial eye. | B.The structure of the human eye. |
C.The advantages of the artificial eye. | D.The material used for the artificial eye. |
A.They have the same structure. |
B.The artificial eye may see more clearly. |
C.The human eye sees better in weak light. |
D.The artificial eye takes in a broader view. |
A.Doubtful. | B.Favorable. | C.Unconcerned. | D.Satisfied. |
4 . The Power of Insensitivity
Highly sensitive(敏感的)person, or HSP, is a term invented by psychologist Elaine Aron. HSPs can come with many challenges. They may find it hard to adapt to new surroundings, and easily become uncomfortable in response to certain feelings or others’ opinions.
The power of insensitivity can be explained as “slow power”. Usually, people connect “insensitivity” with something bad, but indeed, it stresses the ability to keep doing something difficult without complaining.
There are some ways to practice “insensitivity”: Don’t pay too much attention to the ups and downs of life at the moment.
Everyone can gain the ability to be insensitive.
A.Insensitivity plays a significant role. |
B.Rather, you should be looking forward. |
C.That’s where the need to be insensitive comes from. |
D.Once you slow down the pace, you will feel more comfortable. |
E.Those not easily affected are the people who care less about others. |
F.That is, calmly facing the downtime in life and moving towards one’s own direction. |
G.One reason why insensitivity allows people to better survive is the strong self-awareness. |
5 . How to Protect Against Undue Influence Online
The potential for undue influence has become increasingly significant in this era of digital interconnectivity. Undue influence can affect our perceptions and influence our decisions. It may even end anger our autonomy (自主) and mental health.
Understand what undue influence is
The first step to protecting yourself is understanding what undue influence is. Undue influence refers to a situation in which an individual or group employs unreasonable control over another person’s behavior information, thoughts, and emotions.
Develop media literacy skills
In an age of fake news, it is crucial to develop media literacy skills.
Delete as much data as you can about yourself. Be mindful of what information you share online, and always ensure that your online activities are secured through reliable sources. Review all policies on platforms, especially “free” ones. If you aren’t paying, then you are the product, as in many cases, they are selling your data.
By including these steps into your digital life, you can protect yourself from undue influence in the online world, ensuring that you can think and act independently, free from ill control.
A.Prioritize privacy |
B.Be mindful of free ones |
C.It’s vital to have a health y Internet and real-life balance. |
D.In the digital world, undue influence can take many forms. |
E.Everyone deserves the right to live free from undue influence. |
F.They involve analyzing, evaluating, and creating media in various forms. |
G.Here are some essential strategies for you to protect yourself online from undue influence. |
6 . The Music Educator Award, this year, went to Annie Ray, an orchestra(管弦乐队)director at Annandale High School.She was recognized for her efforts to make music accessible to all students, particularly those with disabilities.Ray got to attend the awards ceremony in Los Angeles and bring home a $10,000 prize.
Ray created the Crescendo Orchestra for students with severe intellectual and developmental disabilities, as well as a parent orchestra that teaches nearly 200 caregivers a year to play the same instrument as their child.Ray also works with a local charity to give damaged instruments a second life in her classroom.
The orchestra is about much more than just making music.The most important is to give students a chance to develop their cooperation skills, make mistakes and learn the art of refining something.Ray pushes her students to be brave, go outside their comfort zone and realize they have to learn how to make bad sounds before learning how to make good sounds.And they teach her a lot in return.” They changed my educational philosophy.I understand what it truly means to meet a student where they’re at and apply that elsewhere,” she said.
The warm reception on the ceremony was meaningful.Actually, not many people understand what exactly music educators do or how much their work matters.While her administration is supportive, that lack of understanding is a problem facing the profession in general.Another is resources.She says her school “desperately” needs new instruments.She will use some of her prize money to buy more.
Ray also plans to put some of the money towards an ongoing scholarship for students who want to pursue music when they graduate.She knows of several, those particularly interested in music, and aims to offer financial support needed to realize their musical dreams” It is hard but truly satisfying,” Ray said.“And there’s nothing else like it for them.”
1. What can we learn about Ray from the first two paragraphs?A.She hosted the award ceremony. | B.She brought music to more people. |
C.She gave away instruments to the poor. | D.She founded a local charity for children. |
A.They acquire in-depth musical knowledge. | B.They make friends with the like-minded. |
C.They gain personal growth from playing music. | D.They improve their connections with educators. |
A.The reception on the ceremony. | B.Importance of music education. |
C.Challenges for music educators. | D.Plans to obtain resources. |
A.Winning a scholarship. | B.Developing interest in music. |
C.Making musical achievements. | D.Transforming dreams into reality. |
7 . A year back I received a full scholarship to attend the University of San Francisco. All of my hard work had paid off. My mom had spent a lot in my attending a private high school, so I made sure to push myself: I volunteered, joined different clubs, and graduated with honors.
I was so excited to start a new life. I had totally packed two weeks and wanted to go to college at once before it was time to leave.
Soon enough, the big day came, but it wasn’t like what I had thought. The first two weeks were the most difficult days of my entire life. Every night I would cry myself to sleep.
I was so homesick (想家) and I didn’t know how to deal with my broken heart. To distract myself, I threw myself into my studies and I applied for a lot of jobs. In any remaining free time, I started forcing myself to the gym. I wanted to keep every part of my day busy so I wouldn’t think how lonely I felt.
Soon after, I began to limit food, and then I became worse. Finally, I went to see a doctor. When the doctor weighed me, I was crazy about the number of my weight. So I continued to lower my goal, and convinced that controlling this number was the solution to my homesickness. But when I was told that I had no choice but to spend time on my studies. I quickly started recovery in my mind.
How could I do? I told myself that school was what I was best at. I decided to get rid of my homesickness and took exercise actively. My first term of college had passed by at last and I had gotten straight A’s. That’s why I want to share my story—to help other students feel less lonely.
1. How was the author during the two weeks before she left for the college?A.She was as normal as before. |
B.She couldn’t wait to leave for the college. |
C.She was afraid to leave her home. |
D.She didn’t enjoy her mother’s company. |
A.Her weight. | B.Her diet. |
C.Her homesickness. | D.Her bad study habit. |
A.achieve my dream | B.earn money by myself |
C.improve my studies | D.take my attention away |
A.To look back at her past middle school life. |
B.To help girls to lose weight. |
C.To help lonely college students. |
D.To increase her own confidence. |
8 . Have you ever imagined an insect-inspired robot, which weighs less than a gram, could one day help out in surgery (外科手术)?
Scientists have designed this small, “insect-bot” called mCLARI that can control and even change its body shape as it travels in different environments to fit through gaps. It’s 2 centimeters long, weighs less than 0.97 grams and can travel at a speed of 6 centimeters per second.It’s the smaller, faster replacement to CLARI, which was designed by the same team.
“Because of the robot’s small size and ability to change shape, we expect usage of this technology in four important areas,” the lead author Kaushik Jayaram said. These include disaster (灾害) response , check on high-value objects, environmental monitoring and medical treatment.
“In the long term, we hope such robots will be used more widely in moving through human bodies and performing surgeries that can’t be easily done at present,” Jayaram said. With mCLARI, Jayaram’s team is moving closer to creating robots that can fit in different environments—just like the insects they’re inspired by.
The mCLARI robot has four legs and can move in narrow spaces by changing between running forward and side-to-side and can use different speeds in human bodies. Its legs are joined to its body through joints (关节), which enables mCLARI to change its body shape based on the environment it is in. For example, its legs can be lengthened up to 50% in certain spaces.
As follow-up work, the scientists want to give mCLARI more power and sensing ability while helping the surgeries. “We are also excited about understanding the effect of shape change on improving functions of robots,” Jayaram said. “And this is sure a great one-step forward of the technology. The robot will have entered the market by 2025 and will bring greater benefits to mankind, especially in medical treatment.”
1. What is paragraph 3 mainly about?A.Possible application fields of the robot. | B.Different types of the robot. |
C.Several important features of the robot. | D.Working process of the robot. |
A.Valuable but uncontrollable. | B.Modern but high-cost. |
C.Heavy and time-consuming. | D.Advanced and effective. |
A.Worried. | B.Positive. | C.Doubtful. | D.Uninterested. |
A.Jayaram: A Scientist Studying Robot Intelligence |
B.mCLARI Is Already Widely Available in the Market |
C.CLARI: A Robot Invented by Inspiration from the Insects |
D.A Tiny Shape-changing Robot Will Help Perform Surgeries |
9 . Build your own first aid kit
Emergencies can happen anytime, anywhere, so being prepared for one is important. Having a proper first aid kit in your home is an easy but essential part of good emergency preparation.
Pick a good container. One good option is a large, water resistant, rigid or flexible plastic container. This makes the materials inside visible for easy identification and safe.
A.Make your first aid kit safely accessible |
B.Separate the first aid kit into two sections |
C.The ready-made first aid kits in the store are usually expensive |
D.The kit should be easy to transport as needed to the emergency |
E.The number of each item will depend on the size of your family |
F.Having several first aid kits means you can get one of them anytime |
G.First aid kits on the market often lack what you want or have something useless for you |
10 . Dusting is particularly annoying. Nearly two-thirds of household dust content comes from the outdoors, some of which may contain harmful chemicals. So, keeping your home as dust-free as possible is important to improve overall health.
In general, you should dust your home’s most exposed surfaces on a weekly basis. This means items such as tables, shelves, beds, dressers, counter-tops and windows.
Change your bed sheets weekly, as dust mites (螨) especially love bedding.
Since so much dust comes in from the outdoors, you can cut down on the amount gathering in your home by keeping doors and windows closed as often as possible, and placing carpets on both sides of doors.
Get rid of odds and ends, which can easily attract dust, and be careful how you handle clothes. Since clothes both collects dust and sheds (掉落) fibers, regularly wash any clothes or don’t throw clothing on the ground.
When you’re getting ready to clean a room, always work from the top down.
A.If you dust from the bottom up |
B.How can we keep the home dust-free |
C.Why should we keep the home dust-free |
D.You can remove your shoes when you come home |
E.You can buy some new shoes before you return home |
F.Don’t use feather dusters that simply push the dust around |
G.Items that don’t collect dust easily can go a month without cleaning |