Zhou Yan, a 12-year-old student, went to the doctor because he
Zhou got his mobile phone five months ago. He spent too much time
Yang Ling, a doctor, says that if someone uses his mobile phone too much, he might
2 . Most of Marcia’s friends had a cell phone (手机), but Marcia’s mom didn’t want to buy her one. She didn’t want Marcia to play video games on the phone. Also,
Marcia’s dad disagrees with Marcia’s mom. Although he
Mobile phones are more important than ever in the daily lives of students, but how they use them has changed greatly in the past six years.
P
“Communication is still an important f
Much of what we know and believe has been taught to us by others. We often accept information without spending much time
Nowadays, we are presented with lots of
Some people believe whatever they read and then share the story
If we think more about
Can you imagine life without smartphones and Wi-Fi? Most of us probably think it is
Green Bank is home to a large radio telescope (射电望远镜). It is used to study the universe. Radio waves (无线电波) from the ground will
Today, Green Bank has about 180 residents. Many of
Another resident said she was happy to talk to people face-to-face. This gives her the
Years ago, if a teenager had some problems in his life, he might write them in the diary. But now a teenager may go online and write his
One of the biggest differences is that micro blogs attract more attention, while diaries are too
If people are caring about what they write and
September 1st is the perfect day to pick up a pen and paper and write a letter to someone because it’s World Letter Writing Day. The holiday is created to keep the art of letter writing alive in our digital age(数字时代).
For a long time, letter writing was the main way of long-distance c
Even though the new technologies have p
So, how do we celebrate this day? The best way is to write a letter to someone. It could be friend or relative who lives miles away, or someone you have lost touch with over time. Of course, you can a
Years ago, if a teenager had some problems in his life, he might write them in the diary. But at
One of the biggest differences is that micro blogs attract more
If people are caring about what they write and by
![](https://img.xkw.com/dksih/QBM/2022/11/3/3101534319493120/3345380980989952/STEM/7767e9bcf4db43caa9b5c2a413816fdc.png?resizew=111)
Smartphones are important in our daily life. However, to protect
The Ministry of Education made a rule
Zhang Feng is a middle school teacher in Beijing. Every classroom in her school has a big box to store students’ phones
Many parents don’t allow their kids to take mobile phones to school. But Wang Dan, a mother from Shanghai does
Nowadays mobile phones are very popular for all of us. We are
It’s said that the mobile phone was first invented by Dr. Martin Cooper who used to be a manager of Motorola in 1973. At that time, a mobile phone was very big and heavy. It was only used for talking
However, smart phones have more functions