I'm sure you all know how important recycling is. Recycling is when you take old things and turn them into new things. It sounds like magic. But it's actually very scientific.

    China has recently published its first artificial intelligence(AI,人工智能) textbook for high school students in Shanghai to start AI lessons. Forty high schools around the country have become experimental bases for exploring AI education.

    The book, Fundamentals of Artificial Intelligence, includes the history of AI and how the technology can be used in areas such as facial recognition, public security and auto driving.

    Peng Yu is a teacher at the High School Affiliated(附属)to Shanghai Jiao Tong University. He took part in editing the textbook and said it would give guide to students. He said," The book has a good introduction to the area so that students can decide if they want to further study AI at college Students can also find out what they need to learn if they are interested in studying AI. For example, they have to learn Maths because it is the fundamental basis of AI."

    Peng said AI has improved the interest of many high school students already, but he still feels that they can learn much more by taking part in project—based learning programs. Peng is sure that everyone should learn some basic knowledge about AI because it will be part of our everyday lives. It is reported that China needs 5 million AI teachers to keep up with development in the future.

Marvel is one of the most popular companies in the world. As early as 1939, a  {#blank#}1{#/blank#}called Motion Pictures Funnies Weekly was on and Namor the Sub-Mariner was the first superhero in Marvel. So far, these have been many famous superheroes. Among them, I like Iron man best. In Iron Man I . he is a  {#blank#}2{#/blank#} person with lots of money. Because he has experienced dangerous situation, he  {#blank#}3{#/blank#}to protect himself and other people with his wisdom(智慧). After he makes this important decision, he spends most of his free time  {#blank#}4{#/blank#}battle suits with high-tech. From then on, he starts to do good thing around the world  {#blank#}5{#/blank#} . In the end of the movie, he reveals his identity to the whole world in an interview.

Hello, I'm a Chinese girl. My name is Dong Lingling. My English name is Mary. Look! These are schoolbags. The first one is mine. It is blue and blue is my favorite color. A yellow pencil box, a white cup, and books are in my schoolbag. Look! A map is in it, too. It's a map of China. The next one is my friend Bill Green's. Our mothers are good friends, too. Bill's schoolbag is brown. It is very big. His mother Betty buys it for him. The letters"B" and"G" are on it. Two pens, two books, a baseball and two dictionaries are in it. Bill can't find his blue notebook in his schoolbag. The notebook is very important to him. He writes many things on it. He wants to find it now.

①PUA stands for "Pick-up Artist." It started as a term for people who use clever ways to influence their interactions (交流) with others, especially between lovers. This idea has grown, and now it also means people use tricks to control others in the workplace and online. It's very helpful to know about PUA because it can deeply influence how you feel about your development. Here are some common behaviors to be careful.

②Sometimes people who use PUA tricks criticize a lot. They might tell you that you're always doing things wrong. It is just a way to make you feel sorry about yourself rather than helping you improve. They may also try to keep you away from your friends and family. This makes you depend on them, and gives them more control over you. Another trick is called gaslighting (煤气灯效应). For example, you remember something clearly, but they keep saying it didn't happen. They want you to doubt (怀疑) what you know is true.

③To avoid PUA behaviors, there are several steps you can take. First, learn to tell what healthy friendships and relationships look like. Being confident is also important because it will be not so easy for others to trick you. Besides, you should be brave to say no when something feels wrong. What's more, talking to someone you trust like a teacher can be very useful.

④Knowing these signs and how to deal with them can help you have better relationships. It's like building a strong foundation (基础) for happy and healthy relationships as you get older.

My Dream Holiday

Winter holiday is coming. My parents are going to take me to travel for the Spring Festival. Compared Harbin with Sanya, I decided to make the trip to

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