In the past, my old grandmother didn’t enjoy talking on the phone. Actually, she hated it so she always refused（拒绝）     1     it. She told us that she preferred speaking to people in person. It always     2     her sad that she couldn’t see the person she was talking to. The other day, we chatted with my grandmother,     3     mentioned video calling over the Internet. It was     4     for people to see each other while talking online. Then we     5     up with an idea. We bought her a laptop（笔记本电脑）. One of my cousins went over to her house and taught her     6     to use it.     7    , she was a quick learner.

Now she enjoys     8     when talking with us every day. She is happy and you can tell from the expression on her face. She says it’s also very     9    . She can put it anywhere in the house because it is small and doesn’t take     10     much room. Sometimes she even talks to us while she’s in the kitchen cooking!

Smart phones have clearly changed our life. Now many things can be done on the phone. For many smart phone users,     1     young people, scanning QR Codes （⼆维码）has become a new and convenient life     2     these days. In fact, the QR Code was created in Japan in 1994, but until 11 years later, it was first used in China. It soon became popular around the country. The QR Code is much-loved because it     3     a way to get to website more quickly. By scanning QR Codes, people can do lots of things, such as adding new friends, getting information, downloading Apps, shopping and so on. As for the shopping websites, there are usually more     4     , including coupons （优惠券）for the phone users. The QR code is so common that people can scan them everywhere.

Nowadays, you can see many people are busy on their smartphones (智能手机) if you     1    . Smartphones make our lives easier. But have you ever     2     what they mean to your eyes?

Staring (盯) at smartphones     3     gives you dry eyes and even causes diseases (疾病).

While you’re probably (可能) not going to stop using your smartphone, there are a few things you can do to protect (保护) your eyes. Hold your phone     4     30 cm away from your eyes when using it. Take a break every hour. These will reduce (减少) the discomfort in your eyes.

Do you know what your friends watched on TV last night? Do your friends know what you had for breakfast today? Do you think you are using social media (社交媒体) too much?

Social media is now a part of many people’s everyday lives.It is reported that around 2, 800 million people often use social media. That’s almost 40 percent of the world’s population. Research shows that, worldwide, the average (普通的) person spends two hours and 19 minutes on social media each day. Research also shows that women use social media more than men.

It seems that we spend more time looking at other people’s pages than adding to our own. According to one survey the most common social media activities are visiting friends’ pages, reading their news, and commenting(评论)on their posts.

The most popular social media site is Facebook. It has over 2000 million users. On Facebook, people post their news and photos. In second place, however, is the Chinese site Qzone. In 2017, Qzone was China’s most popular social media site, with around 600 million users worldwide. That’s more than Twitter and Instagram.

Social media continues to grow. And with the popularity of the Internet, this growth won’t stop anytime soon.

In the United States, 73 percent of teens have their own smartphones. Some of them use phones in class. 90 percent of teens use phones to chat, play games, listen to music and watch short videos. It costs them too much time and it’s really not a good thing for     1     health and     2    . Unfortunately, kicking the habit of using phones and other mobile devices(设备) for teenagers can be hard.

Smartphones and other devices can be very     3     in class and daily lives. A quick Internet search can turn up more facts. As the saying goes, there’s an app for that. Smartphones make it easy to get information for teens. Some apps can even replace heavy, paper textbooks. And that’s not all. Teachers can send out the test by phone and then it can clearly to show the test results. In general, teachers think these devices could improve learning, but they are also     4     about their students becoming distracted(分心). That is a really serious problem. Students use smartphones too     5    . After school, they want to use their phones to check the answers     6     they do their homework, which leads them not to think dependently. Some students are crazy to games and lost interests in learning. Some students are too fond of playing with mobile phones, and they don’t want to go out to     7     with friends and relatives face to face, and they are not     8     in outdoor sports.

In order to pay more     9     in class or even outside of school, trying to stop your habits. Turn off your phone, or give it to your parents. Move your head     10     from the phone screen, and you will open a colorful and exciting world.