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Teens are putting on weight. Today most teenagers are at least one size larger than teens were 20 years ago. Did you know that a small today used to be a medium 20 years ago?

Recent research shows 97% of teens need more exercise. It's bad news because too little exercise means you are missing a lot of good things in life. Students who are healthy can listen and understand better in class.

First, exercise helps your body. Physical activity can make your body strong. It can also keep you at a healthy weight. Doctors say that people who stay at a healthy weight have fewer health problems.

Second, exercise can help your mind. People who get plenty of physical activity might worry less and sleep better at night.

You can change your life and be more active at any point. Step away from the screen. You should have no more than two hours of screen time a day. You will enjoy life more if you live it instead of watching it!

Start slowly. An hour a day can seem like a long time. Start with 10 minutes of new activities every day.

Make fitness fun. Find a sport you like. It doesn't need to be the traditional sports of basketball, soccer, or baseball. Those are all great sports and if you like them, play them. However, you can also try hiking, skateboarding, or even rope jumping. If you enjoy the sport, you will do it.

A. It's never too late.

B. Exercise helps in two ways.

C. Add more as you get stronger.

D. We can exercise in many ways.

E. Even clothing sizes have changed.

F. You may even learn better in school.

As soon as winter begins, a team of builders come to Jukkasjarvi and they make the hotel for that year. As one part is completed, it opens to visitors, while the other parts are still being built. The first part is completed in December and each weck after that a new part opens. The hotel isn't usually completed until January 7th. The ICEHOTEL is built under the open sky, using the natural materials of the winter season. So the finishing date depends on________ and there are sometimes changes to the plan. In spring, as the weather gets warmer, the hotel melts (融化).

No matter how cold it may be outside, the temperature inside the hotel is never colder than -5℃ to -8℃. Winter outer clothes are included in the cost of visitors' stay at the hotel. If you are planning to come to the hotel, you can buy warm sweaters, socks and much more on the ICEHOTEL website. They will be sent to your room when you check in.

Black Friday is the day after Thanksgiving in the United States. For me, Thanksgiving is the best US holiday. It's the holiday that does not need us to buy anything special. Yes, we buy turkey, but we also invite friends and family to share. Usually, each person cooks a different dish and brings it to the meal. It's a day to be thankful—not for turkey, but for the people we care about.

Starting around 4 a.m., thousands of people crowd outside of stores and malls. When the doors open, they rush to the shelves (货架). What are they doing? On Black Friday, stores offer deep discounts (折扣), but they have a limited (有限的) number of items. As a result, it's "normal" for people to fight each other for cheap TVs and laptops (笔记本电脑)—even toilet paper! In less than 24 hours, many people forget the lesson of Thanksgiving. Instead, they become mindless consumers (消费者).

During 11/11, I opened Taobao to find a discount on winter clothes. Two hours later, I found myself a mindless consumer too. Although I didn't fight in the crowded stores, I got lost among all kinds of goods and kept buying things I didn't really need. Maybe my co-worker was right—in some ways 11/11 is like Black Friday.

As I got older, we didn't play the game as much. If I had a problem, I would go to my father to ask for his3. He would try to4 with me and say "keep your eye on the ball". We would both laugh because usually that suggestion had5 to do with the problem, but he would try to make me smile.

My father became ill in 1995 when I was 23. As he suffered from a stroke (中风), he could not6. There weren't any more conversations. He could only mouth words, which were sometimes hard to7. After a while, I seemed to be pretty good at8 his lips, even better than the nurses who were caring for him.

During our last communication, I was telling him about a(n)9 I was having with my work. Once again, I could read his lips: "Keep your eye on the ball." We both smiled.

That was the last time I saw my father before he passed away. Since then, "keep your eye on the ball" has become a way for me to10 stress.

Paper cutting is an ancient art form and it has been around for over 1,500 years.1, it is disappearing now. Voyo Woo, a paper cutting artist, works hard and hopes to bring the2 back to life. Voyo Woo began to study paper cutting when she was 14 years old. And she developed a special love for paper cutting. Voyo Woo came to the US after she finished college. When in the US, she was often invited to3 paper cutting at all kinds of events. Soon after, she decided to spread Chinese paper cutting to the rest of the world.

Ms. Woo said, "I saw so many people coming to ask me about paper cutting. I was4. I think it's time to promote (推广) paper cutting to American people or anyone who takes a(n)5 in it. Perhaps it will also make more people become interested in it."

The days of staring at a map or the screen of your smartphone when you're lost will soon be over—— thanks to new shoes that tell you which way to turn.

The shoes use a Bluetooth link to communicate with your mobile's mapping system. The mobile works out which route you should follow and the shoes then emit a vibration (震动) in either foot telling you when and where to change direction.①The shoes will also count the number of steps you've taken and the calories you've burned.

"They are as easy to use as a tap on the shoulder," said Krispian Lawrence, who developed the shoes with partner Anirud h Sharma in Hyderabad, India.

"You can even communicate with them using hand gestures and finger snaps because the shoes have sensors that can pick up movement and sound." The Lechal shoes go on sale worldwide in June but Lawrence and Sharma's company, Ducere Technologies, has already taken more than 3,000pre-orders.

Lawrence believes the shoes will also improve road safety. "If I'm on my bike or motorbike, I don't want to stare at my phone—— it's dangerous," he says. "I'd rather be guided by my footwear."

He believes his invention will prove②    ▲    for the visually impaired (视觉障碍者) and has promised that every pair sold by Ducere will subsidise (补助) a cheaper pair for a visually impaired person.

The shoes don't impress explorer Sir Ranulph Fiennes, however. "What's wrong with a good old-fashioned map?" said the 70-year-old when told of the shoes. "If you rely too heavily on technology, you're heading for trouble. Too many people have forgotten the basics: how to read a map and a compass."

Many people are embracing (拥抱) artificial intelligence (AI). Tools such as ChatGPT use AI to produce text quickly. Some people find that helpful for school or work. Other AI tools create images or chatbots. But AI isn't always accurate or reliable. And it comes with risks, especially if used irresponsibly. We asked some students if they think AI is good for society. They made strong points on both sides of the issue. Here are three of their answers. Where do you stand?

Rime Lee, 10, Winnipeg, Manitoba, Canada

I believe AI can help in many areas. These include healthcare, education, robotics, and more.Some people might think students could use AI to get answers without putting in any effort. But AI doesn't just give students the answers. It can help them solve problems step by step. That's a great way to learn.

Maren Altrup, 10, Springfield, Missouri

AI can be good for society in some ways, but it could also go wrong. With AI, it can be hard to know what is real and what is made-up. And students could cheat on their homework. This would not be good, because teachers would not know if students were struggling. Students could stop thinking for themselves and depend too much on AI.

Thomas McGibbon,9, Pelham, New York

Artificial intelligence is good for society. Without it, some helpful websites wouldn't exist. It's also good because you might have a question and your parents don't know the answer. Then you can ask AI. I know students can use artificial intelligence to cheat on tests or on their homework. But a lot of schools are able to block (屏蔽) those websites so that students can't cheat.

Now smartphones and computers are getting thinner than before. 1 , in the future, you might not take them everywhere with you. You may just need to 2 a pair of glasses.The glasses will act like a computer 3 and show you information from the Internet. When you' re visiting an art museum, you' ll be able to see information about the famous 4 in front of you.Wearing the glasses you' ll be able to get a review(评论) of the restaurant menu before you 5 .The glasses will also have a camera to take photos.All in all, smart glasses make your life much 6 .

In the future mirrors will be able to do much more for you. When you 7 your teeth in the morning, you' ll be able to watch the news on your mirror.

If your hair is short and you wonder what you' ll 8 with long hair, you can just talk to your mirror. Then you' ll see yourself with 9 features(特征). Your mirror will also show your 10 condition and it' ll be able to tell you when you need to visit the doctor's office.

At night, these tall buildings      the sky in every direction.

Many companies will   how to sell their products to other countries.