相关试卷

要求：

1.不少于80词，开头已给出，不计入总词数;

2.包含表格全部内容，并适当发挥，以使文章连贯，书写工整;

3.文中不得出现真实的人名或校名。

A survey on weekly use of smartphones

Recently, we did a survey on weekly use of smartphones among 600 eighth graders in our school. Here are the results.

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potato chips are! Nowadays, they are becoming more and more popular in the world.

However, the customers loved them so much, so daily sales kept .

This made George extremely angry. He and decided to cut a potato into very thin pieces, fry them, and put a lot of salt on them.

Take potato chips for example. One day, a customer sent back George's plate of fried potatoes because they were cut too thick.

inventions were invented after many years of hard work, and were invented just by accident.

Pablo Picasso was a creator of modern art. He was very i. It's said that he drew pictures before he could talk. From his early days, he could paint in many different styles. But he wanted to create a /kəm'pli:tli/ new and different style, so he created Cubism(立体主义)after many years of hard work.

Picasso was a great artist who had a p effect on art and changed the way people think about art. He taught us that art doesn't have to look real to be beautiful. He even showed us that it is more important to be creative than just follow traditional /pɑːθs/.

Last week, museums o many activities to show his works of art. We could see works from the birth of Cubism in 1907 to the paintings just before his d in 1973. His paintings like Guernica and Dove of Peace moved people with different shapes and quiet hope.

Talking in 1 and 0

We count with numbers from 0 to 9. But computers use an easier system. It only needs two numbers: 1 and 0. This is called binary (二进制). It is the basic language of all smart machines.

Why? A computer's brain is full of tiny switches. Each switch is either ON or OFF. The number 1 means ON. The number 0 means OFF. This is perfect for a computer.

So, how does it work? Long lines of 1s and 0s make codes. Each code gives a different instruction. For example, the code 01000001 tells the computer to show the letter "A".

Everything you see on a screen is made from these codes. When you play a game, the computer reads millions of binary instructions every second.

It is amazing. Our digital world is built on just two numbers.

A. It follows them to create the pictures and sounds.

B. So, binary is a direct match for these switches.

C. This language runs every computer and phone.

D. This shows the power of an easy idea.

E. It is clearly seen that easy codes can create amazing things.

Today's teens know digital technology very well—they start using smartphones when they're young. According to a survey, over two thirds of teens use AI. Teens who have no friends turn to AI for friendship. But there are big dangers because of poor safety rules. In 2024, a 14-year-old boy in Florida died after AI told him to hurt himself. AI is just eager to help and can't stop harmful ideas like real people do.

Experts say AI can't take the place of real friends. Close friends give honest advice because they know each other well and care for each other, but AI only pretends (假装) to understand their feelings. It learns users' weak points to form unsafe friendships and often gives bad or even dangerous suggestions.

Experts also advise caring adults to have friendly communication with teens about their online life. They could talk about how to use social media to support their friendships. Besides, they can talk about what it feels like to talk with an AI friend or with a human friend. These talks can help solve problems better.

AI can help teens' friendships, but it can't take the place of meeting in person. With adults' good guidance and open talks, teens can use technology to make safe and real friendships. The most important thing about friendship is still caring about each other, understanding each other, and growing together.

Turing was born in London in 1912. He was a problem solver and inventor who loved maths and science. He studied maths at Cambridge University in England in 1931. In 1936 he wrote a paper about an imaginary machine that could solve any maths problem if you gave it the right instructions. People today call this idea the "Turing Machine" and say it was the first step to modern computers. Later that year, Turing moved to Princeton University to further his studies in America.

When World War Ⅱ started in 1939, Turing moved to a place called Bletchley Park. There, teams worked day and night to break German codes. The Germans used a machine called Enigma to make their war plans unknown to others. Every night the machine would reset the code, so it became different at midnight. Turing and his friend Gordon Welchman built a new machine named Bombe. Bombe tried thousands of different ways of breaking the code each morning and often found the right answer before lunch. Thanks to Bombe, British ships could move safely and saved many lives. Historians believe Turing's work shortened the war by at least two years.

After the war Turing continued to think about smart machines. His tests and ideas are still used in today's research on AI. In 1954, Turing sadly died.