How green are you? Do you know how to be green?

    We all need a healthy environment, but we produce waste every day and it does harm to our environment. Though we are young, we can still do something to help. In fact, even the simplest everyday activities can make a real difference to the environment. Here are some ideas for you.

    Reduce

    Reduce means "use less". Don't waste things. This saves money and reduces pollution and waste going into the environment. Before we buy something new, think whether it is really necessary—or maybe the old one will be just as good! When we buy things, choose local products if possible, and try not to buy too many things from abroad.

    Reuse

    Reuse means "use again". Use things for as long as possible. When we buy things, make sure that they last a long time. We should look after them so that they will last, and we should repair them if we can instead of throwing them away and buying new ones. Don't use a paper cup or a paper bag. It's better to use a china (瓷器) cup and a lunch box because you can use them again.

    Recycle

    Recycle means "change things into something else". Though it takes energy to change something into something else, it's better than throwing things away or burning them. Find out what can be recycled in your neighbourhood and take part in recycling programmes. We should also buy products made from recycled materials, such as recycled paper, to help save trees.

    So please remember these three words: reduce, reuse and recycle.

With the development of Chinese and Western cultures, more and more people go to different countries  for  exchanging  and  learning.  So  knowing  more  about the differences becomes so

necessary.

First, Western people express themselves directly, while Chinese act oppositely ( 相 反 地 ). Chinese are implicative (含蓄的) most of the time. When Chinese get angry or unsatisfied (不满的), most of them will say nothing. But if you are unsatisfied with a foreigner, you need to speak it out. Don't hide your feelings because he or she doesn't like it or can't understand your thoughts.

Second, the value about things is different between Chinese and Western people. Chinese seem to be more worried about tomorrow, while Western people like to spend tomorrow's money in advance. Western people believe that they should enjoy themselves at the moment and tomorrow is another day. So they enjoy everything they have now, having no clear plans for the future.

But remember, there is no judgement (评判) about which one is better.When    in    Rome,    do    asthe    Romans    do. We just need to know the differences and learn to understand each other. Every country's culture has its own special meaning. What we need to do is to respect (尊重) each other's

culture and gel along with each other peacefully.

①As missing children get older，they become quite different from the faces in their last﹣known photographs，which makes finding the really difficult. Now AI（人工智能）can make it easier to match any found children to those old photos. 

②Police can use software（软件）to age photos of missing people，but it seems to work best in adults

③Unlike adults ，the faces of children change greatly as time goes by，and matching photos of found children to old images（画像）（数据库）of missing children is difficult. "Even with a recent face image of a child，it is quite hard for a human to recognize（辨认），who the child is from a large data set of child face images，" says Debayan Deb at Michigan State University. 

④Now Deb and his teammates have created an algorithm（算法）to work out the problem. They created a face﹣recognition algorithm on data sets，which have images of nearly 1

⑤AI learned to match recent photographs of children with images taken 2. 5 years earlier. The correct matching rate can be 80 percent. With one year between the two photographs，it was 90 percent correct at recognizing faces. This dropped to 73 percent after three years. The new AI might help to improve accuracy （准确性）of this kind of software

⑥Deb's next goal（目标 ）is to make the age gap wider. His team also hopes to develop an app to fight against the sale of children. 

Dear Yoko,

Let me tell you about my family. I live with my mom, my dad and my older sister. We live in New York. 

My mom's name is Carmen. She's Mexiean and she speaks(讲）English and Spanish. She's a Spanish teacher. She's short and slim（苗条的）。She has long brown hair and brown eyes. My dad's name is David. He's American. He's tall and a little fat! He has short brown hair and blue eyes, He works in a bank which is far from our house. My sister Shania is 14 years old and she loves listening to music. She listens to music all the time! She has long brown hair and green eyes, like me. I have long hair, too. We have a pet dog, Brandy. He's black and white and very friendly.

Write back to me soon please and tell me about your family. 

 Yours

 Kelly

Zhou Chuna，a normal 15-year-old girl，shared her experience of cosmetic surgery（整容手术），more and more young people in China are having cosmetic surgery. It was reported that 19 percent of Chinese medical beauty customers in 2020 were aged 18 or under. 

Many beauty clinics（诊所） say that being more beautiful gives people an advantage in society，but the truth is that failed examples of cosmetic surgery are common to see. Once a teenage girl named Zhang had double eyelid surgery are common to see. Once a teenage girl named Zhang had double eyelid surgery.

Moreover，a large number of beauty care centers actually open against the law. It is said that China has about 13，000 beauty clinics.

More worrying，there is heated competition among the medical beauty clinics to win more teenage customers. Some businesses use catchphrases like "Only by becoming prettier can you be more loved" to spread" appearance stress". And many beauty clinics advertise directly to teenagers，encouraging them to" make some changes and let your classmates be amazed by your beauty in the new term". Some beauty clinics mislead their teenage patients by advertising low costs. One Internet user said she saw an advertisement for a 15﹣yuan treatment for pimples but the staff at the beauty clinic gave her a year's surgery plan which cost 8，000. 

Many experts have said it's dangerous for teenagers to have cosmetic surgery. Teenagers are more at risk to advertisement and social pressure，not to mention their level of physical maturity（成熟）. That's why they are calling for stricter rules on the beauty clinics when it comes to the treatment of teenagers. 

This term, Xiao Yang has a new subject— geography, but he doesn't like it. "It's not useful at all, " he thinks. So he always plays games in class. 

 Mr. Wang is his geography teacher. . He is nice to the students in his class. One day, he finds Xiao Yang isn't interested in his class. He comes to Xiao Yang's desk and asks, "Hi, Xiao Yang. Where are you from?"

"I'm from Sichuan, Mr. Wang. "

"Oh, that's a nice place! Can I ask you some questions?"

"Sure. "

"Why are there many mountains in Sichuan? Where does Jialing River start? And why is it so hot in Chengdu from July to September?"

"I'm sorry, Mr. Wang. I don't know, "Xiao Yang says. 

"Do you want to know?" Mr. Wang asks. 

"Yes, Mr. Wang. But how?"

"Well, you see, your games can't help you, but geography can. So now let's start the lesson, OK?"

"OK. "