Computers can injure you. Most other injuries happen suddenly. For example, if you fall off a bike and break your arms, it happens very fast. But computer injuries happen slowly. You probably know how to ride a bike safely.
Your eyes
Never sit too close to a computer screen. Too much light can injure your eyes. Your eyes should be at least 50 centimetres from the screen. After some time, remember to look away from it. This gives your eyes a rest.
Your hands and wrists(手腕)
Hand and wrist injuries can happen because the hands and wrists are moved in the same way hundreds of times.
Your back
Some people sit for many hours in front of a computer. If you sit in the wrong way, you can injure your back or your neck. So you should sit with your back straight.
A.If you use a keyboard for a long time, follow these rules. |
B.When you use a computer, the window should be on your left or your right. |
C.Now learn to use a computer safely. |
D.Enjoy your computer, but use it safely. |
E.The top part of the screen should be in front of your eyes. |
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Tips on how to save money
It’s important for you teenagers to know how to save money. If you think it’s a difficult task and don’t know how to do it, please do as the following.
Make it a habit to write down all that you have spent. And when you find out the total(总的) number that you have paid at the end of the month, you will realize the importance of saving money.
If you have gone to a shop to buy something and get back some changes(零钱), then you can save them in your money jar. And you’ll be surprised at the large number of money after days.
Maybe you enjoy hosting parties. Invite your friends over to your house instead of a restaurant. You can have a barbecue or play games. It’s a great way to have fun, but it is much cheaper.
Do you like drinking cola or coffee very much? Instead of buying cola, coffee or other drinks with a meal, drink water. Water is better for your health, and drinking it saves you money, too.
Do you have the habit of not leaving a store without buying anything? The only way to stop that is carrying less money around with you, which will not even help you buy a drink.
Follow these tips above, make small changes(改变) in your life, and watch your money grow.
A.Eat at home |
B.Go to the bank often |
C.Carry less money |
D.Keep a record(记录) of money |
E.Choose water first |
F.Save your money |
Warnings | △ Take it with a lot of water so that the medicine won’t stay in your throat. △ Take with food so your stomach won’t be upset. △ It may make you sleepy. Do not drive or use dangerous machines. | |
Directions | adults and children 12 years old and over | 2 tablets (药片) every 4 to 6 hours; not more than 12 tablets in 24 hours. |
children 4 years to under 12 years | 1 tablet every 4 to 6 hours; not more than 6 tablets in 24 hours. | |
children under 4 years | Can’t take the medicine. |
1. People can’t take the medicine in ________.
A.July 2023 | B.April 2024 | C.July 2024 | D.June 2024 |
A.drinking more water | B.eating some food |
C.going to bed | D.driving a car |
① Jim, a 3-year-old boy, who has a cough
② Linda, a 15-year-old girl, who has a cold
③ Alice, a 30-year-old woman, who has a sore back
④ Mike, a 6-year-old boy, who has a headache
A.①② | B.②④ | C.③④ | D.②③ |
A.6 | B.8 | C.10 | D.12 |
Do you like to eat fruit? Do you know how to eat fruit in a different way? Today I’ll show you a new dish named “fruit cup”. You can make it for your parents on the weekend.
Steps
◆Ask an adult to help cut an orange in half, take out the orange segments (瓣).
◆Cut a peeled banana and the orange segments into small pieces.
◆Add some pineapple chunks and 5 grapes.
◆Squeeze (挤) some lemon juice over the fruit and mix it together.
◆Serve your fruit salad in the two orange “bowls”.
1. To make a fruit cup, you need ________.A.pears | B.grapes | C.watermelons | D.strawberries |
A.Three. | B.Four. | C.Five. | D.Six. |
A.children | B.teachers | C.parents | D.cooks |
【推荐1】Being a teenager can be challenging, but it can also be exciting. You’re becoming more independent and making decisions for yourself. You are also learning to take risks and solve problems better than you could before. And changes are happening throughout your body, even in your brain.
You can’t see the changes in your brain, but they’re affecting how you develop into an adult. At this time in your life, there is a process going on inside your brain that makes it work faster and more efficiently. Imagine that the structure(结构)of your brain is like a big road map. There are lots of roads leading to different destinations(终点). When you were a child, as you learned new things, your brain created more and more roads leading to different destinations. By the time you become a teenager, the most important places on the map have many different roads leading to them. Now your brain’s job is to make that map more efficient. It removes the roads that you don’t need and works to make the other roads faster.
As a result, your experiences as a teenager actually affect the way that your brain develops. If you spend hours playing video games, what skills to you use? You learn to see something with your eyes and respond(回应)to it with your hands, right? As you develop those skills, your brain is making sure that the roads leading to them are especially fast and efficient. So, your videogame playing could be preparing you for a career such as a fighter pilot, or even a surgeon(外科医生).
This is a great time for you to practice new skills and discover what you’re good at and what you love doing. Go out and try different activities, and stick with them if you think they’re useful. Remember that with everything you do, you’re shaping your brain for the future.
1. When learning new things as a child, your brain creates lots of roads leading to ________.A.Same destinations | B.a specific goal | C.Different activities | D.different destinations |
A.easy | B.special | C.helpful | D.hard |
A.raising animals | B.cooking dinners | C.flying planes | D.giving speeches |
A.Shaping Your Future | B.Protecting Your Brain |
C.Improving Learning Skills | D.Playing Video Games |
We do eye exercises. We wear sunglasses. We do lots of things to protect our eyes.
Ears help us hear the world. But many things, such as loud noises, can cause hearing troubles. So how can we protect our ears? Let’s take a look together.
Keep your ears dry and warm
How to clean your ears
How to use headphones
Don’t listen to loud music on your headphones for a long time. Over-the-ear headphones (头戴式耳机) are better than in-ear ones.
A.They do a better job of stopping outside noise so you can listen at a lower volume. |
B.But we usually forget another important part of our body, the ears. |
C.Dry your ears after swimming or taking a shower. |
D.Usually, our ears clean themselves. |
E.In winter, protect your ears with a hat or a scarf. |
With her eyes feeling increasingly tired and her vision blurry (视力模糊的), 16-year-old Tian Ting went to the hospital with her parents in January. She was shocked when she found out that her eyesight dropped from 5.0 to 4.6 in only a term. “A few of my friends have had the same experience lately,” Tian said.
In fact, poor eyesight among Chinese primary and high school students rose from 59.2 percent to 70.6 percent in the first six months of 2020, according to the Ministry of Education.
To protect students’ eyesight, the Chinese government has worked out new requirements (要求) for school supplies (供应品) and equipments that will take effect (生效) on March 1, 2022. For example, according to the requirements, the size of text in students’ textbooks should be no smaller than nine-point. Teachers should also try not to use projectors (投影仪) or other multimedia equipments (多媒体设备) that are too bright, Beijing Daily reported. There are also requirements for desks and classroom lights. For example, these lights should give off (散发) as little blue light as possible.
Blue light is bad for our eyes, as it can kill the photoreceptor cells (光感器细胞) we need for vision, according to Harvard Medical School. Many of the electronic devices we use every day, like our phones and computer screens, give off blue light.
Chinese government has also taken other steps to protect students’ eyesight in China. In May 2020, the National Health Commission urged schools to make sure that students have at least two hours of outdoor activity a day.
1. In the first half of 2020, there were ________ of students becoming short-sighted.A.0.4 % | B.11.4 % | C.59.2 % | D.70.6 % |
A.schools use textbooks with the smaller size of text |
B.teachers use over-bright multimedia equipments |
C.students are made sure to have fewer than two hours of outdoor activity a day |
D.schools use lights that give off less blue light |
A.How to protect us from illness. | B.How to have outdoor activity. |
C.How to use electronic devices. | D.How to protect students’ eyesight. |
【推荐1】Lightning is one of the most powerful weather forces to hit Earth. These huge electricity that strike (撞击;击打) during storms can cause destruction and death. Lightning can heat the air around it to temperatures five times hotter than the surface of the sun.
Lightning is very common. It is estimated (估计) that every second, about 100 lightning strikes hit the surface of the Earth.
Lightning can be deadly. It is difficult to keep exact records on how many people die from lightning each year throughout the world. Some experts estimate that about 2, 000 people die each year from lightning. Others say the number could be as high as 24, 000.
So how to stay safe during a lightning storm is important. Experts at the weather gov (政府) website, give tips on staying safe if lightning comes your way.
Outdoor lightning storm
If you are outside, you should take cover, which means finding a safe shelter for protection. During a lightning storm, no place outside is safe. If you hear thunder, lightning is close enough to strike you. Most lightning victims (受害者) are in open areas or near a tree.
Nowhere to hide
If you are outside during a lightning storm and there is no safe shelter, these actions may reduce your risk:
●Immediately leave high land areas, such as hills or mountains.
●Never lie flat on the ground.
●Never shelter under a tree sitting in the open.
●Immediately get out of any bodies of water and stay away from those areas.
●Stay away from objects that can conduct electricity, such as wire fences, tall buildings, power lines or windmills.
Indoor lightning storm
Stay off wired phones, computers and other equipment that can put you in direct contact with electricity.
●Avoid any areas with running water.
●Remain indoors but stay away from windows and doors.
●Do not lie on concrete (混凝土) floors or touch concrete walls.
1. What characteristics does lightning have?A.Deadly. | B.Common. | C.Powerful. | D.All of above. |
A.100 | B.6000 | C.600 | D.1000 |
A.庇护处 | B.最高点 | C.最低点 | D.休息间 |
A.we should stay at the mountain | B.a big tree in the open air is a perfect place to stay |
C.we can play computer games as usual | D.we should keep away from the water |
A.How does Lightning Happen. | B.How to Stay Safe During a Lightning Storm. |
C.Bad Influences of Lightning. | D.How to Help the Lightning Victims. |
【推荐2】What to do before, during and after the Earthquake?
Before * Plan with your family. Make sure everyone knows what to do during an earthquake. Talk about where to go and what to do to stay safe if one happens. Knowing what to do will help reduce (减少) fear and panic (恐慌). * Find “safe places”. Pick “safe places” in each room of your home and your school. A safe place could be under a piece of furniture (家具), such as a strong table or desk. Or stay against a wall away from windows, bookcases or tall furniture that could fall on you. The closer you are to your safe place, the better. | During *Indoors Stay away from windows and lights. *Outdoors If you are in a car, stop in a safe place, and stay inside the car until the earthquake stops. If you are in a crowded (拥挤的) place, protect your head with your arms or take cover under seats and tables. |
After *Turn off water, electricity and gas (天然气) *Use the stairs instead of lifts. * Put out any fire. Use flashlights (手电筒), not fire. * If you are in trouble, cover your mouth and nose. Don’t shout. Hit with an object to show your position (位置). * Don’t use the phone unless it’s very necessary. |
A.To protect the house. | B.To take things with us. |
C.To reduce fear and panic. | D.To be ready to run away. |
A.Near the window. | B.Under the strong table. |
C.Behind the tall furniture. | D.Beside the bookcase. |
A.Use the car. | B.Shout loudly. | C.Make a big fire. | D.Hit with an object. |
A.Health. | B.Safety. | C.Travel. | D.Business. |
【推荐3】How do you feel when your parents are not at home with you? Here is what Daniel and Laura say.
Daniel, Well, I’ve had the experience of having to take care of my younger brother by myself. When I’m scared, I always do my favorite thing. But there are a lot of things making being home alone a lot of fun. My favorite thing to do is to watch TV or listen to the radio. It is like having another person to talk to. And if my brother and I argue, we can always make a deal. We play his game first, then he has to play mine, and both of us get what we want. When I get a little scared, I just remember that there is always someone to call on the phone, and I have a lot of friends in the neighborhood, too. |
Laura, When I stay at home alone, I keep the TV or radio on. It seems that there are more people in the house. I also always have the phone numbers of the people next door and my parents. When watching my younger brothers, I will play games with them, and leave more lights on than usual. I will also keep the phone number of the hospital nearby. |
A.getting along with others | B.staying at home without their parents |
C.studying by themselves | D.looking after younger brothers or sisters |
A.Terrible. | B.Great. | C.meaningless. | D.Fun but scary. |
A.He does what he likes to do. | B.He fights with his brother. |
C.He calls his parents. | D.He talks with his friends on the phone. |
A.have the phone numbers of the police | B.stay with a brother or sister |
C.watch TV or listen to the radio | D.make sure that the door is closed |
A.Daniel keeps the TV or radio on when staying at home alone. |
B.Laura thinks watching TV is like having another person to talk to. |
C.When Daniel and his brother argue, they often make a deal. |
D.Daniel leaves more lights on when staying at home alone. |