My uncle is a famous scientist. He likes to make     1     of predictions (预测) about the future. He says that in 100 years somethings will be     2     than now. For example, we won’t have to     3     the dishes or sweep the floor because we’ll all have robots in     4     homes. Also, we won’t need to use     5     money. We’ll all use credit cards (信用卡) to buy things. We’ll have more free time, and     6     will be faster and cheaper than it is now. Maybe some people will     7     their vacations in space stations.

However, my uncle says that more things will get worse in the next century (世纪). If more people use cars, there will be more     8    . Also, if there are fewer trees, the air will become dirtier. If pollution gets     9     bad, maybe people will have to live on Mars (火星). My uncle says we’ll be very     10     if pollution becomes worse.

Have you heard of Ant Forest? It is     11     online game on Alipay. Players collect “energy” by doing something environmentally friendly. They can grow and water     12     own “trees” with the “energy”. When the “trees”     13     big enough, Alipay with some other companies will plant real trees in the desert area of China. Every year, millions of trees are planted in this way.

This is part     14     China’s tree-planting project. It is aimed at stopping the desert from becoming larger.       15     1978, China has planted about 66 billion trees in the north. It is known as “the Great Green Wall”. For example, Saihanba National Forest Park in Hebei Province was once a dessert, but now it has become the biggest man-made forest in China.

Today it was a fine day and     26     sun was bright. My classmates and I went to the old people’s home     27     volunteers.

At the old people’s home, we did something helpful for them. First, we read newspapers and books to them and they told us stories about the past and how things used to be. Next, we cleaned up their rooms and played chess     28     them. Finally, we had a performance for them. We sang and danced happily. They all felt very happy.

I think that     29     necessary for us to do this activity because it is meaningful and wonderful. Many old people are very lonely and need us to look     30     them. I hope I can often go there and help more people.

My hometown is at the foot of Mountain Yi. In my childhood, there were clear rivers and blue     31    . And people could take in (吸入)     32     air and hear birds sing beautifully everywhere. At that time, my hometown wasn’t rich, though the people there were     33    . There were     34     than two or three children in each family. Some of the young kids were not able to go to school, because they had to help their parents work. As a young kid, I     35     the people in my hometown to live a better life. Now my dream has come true.

With the help of the local government, my hometown is becoming much     36     than before. People live in tall and new buildings     37    . Almost every family has a computer. Most young people get     38     or go shopping from the Internet. The local government has built a rural community (农村社区) in our village. There is a school, a hospital and a supermarket in it. People can see the doctor and buy things     39    . Children can get good education     40     to their homes.

Do you have any online classes? It is possible to take classes at home     46     yourself. All you need is a computer and a headset.

However, most students don’t seem to like online classes. According to a     47     survey, only 33 percent of students would take such classes. Over 1,500 students from 10 cities     48     the survey.

Many students said it was hard to focus on studying     49     taking online classes. This was true for Lian Ruohan, 15, at the Affiliated (附属的) High School of Peking University. “There are no classmates, no real teachers     50     me. I can surf the Internet or do other things if I want to. It’s much     51     to always stay focused,” she said.

Lian prepares a lot     52     taking her classes to make sure she will pay attention. She also pushes     53     to communicate with teachers. Students can come up with or answer questions while taking online classes.

But Wen Jiayi, 14, at Yuying Middle School Attached to Chengdu No. 7 High School, thinks online interaction isn’t enough. “The online teachers don’t     54     get to know me. When I don’t hand in homework, all I get is a short message instead of real concern (关心),” she said.

However, online classes still have other advantages. “It saves time and     55     compared to taking offline classes. Also, if I don’t understand some parts of a lesson, I can watch it over again,” Lian said.

Daniel is a middle school student. He adopted three homeless baby dogs two months ago. He took good     56     of them and the dogs became healthier and fatter. Daniel loved them very much. But now he feels worried. He has some problems. First, he has run out of his money to buy food for dogs, because it is expensive.     57    , the dogs are too big and there is not enough room for them. Third, the dogs have become too noisy. So his mother hates them. She can’t stand them.

Some of Daniel’s friends     58     trying to cheer him up. Some advise Daniel should put up dogs’ photos in the street and look     59     their owners. Some suggest him calling the TV show for help. Do you have     60     good ideas to help him?

Volunteering (志愿) is becoming more and more popular now. It’s a wonderful thing     61     others. You can work with groups to pick up     62     dirty, help to teach kids or feed people without homes. People will thank you for your     63    .

Volunteering doesn’t just help those groups, though. It also helps you in some     64    . When you volunteer, you can make friends,     65     your health and learn something useful. If you volunteer more, you will experience more meaningful things.

Volunteering helps your body and mind. When you volunteer, you’ll become friendlier and more     66    , so that more people would like to be with you. So if you don’t have enough friends now, be a volunteer. You’ll meet people who can share your interests and feelings. Your friendship will last for a long time. It will mean a lot to you. That’s because your work     67     an important role in someone’s life.

    68     you join a group and decide to be a volunteer, someone may give you lessons and teach you how to be a good volunteer. Then you can know how to     69     some problems when you are volunteering. So listen     70     when you are in class. You might do that kind of work as a job someday. You can also teach new volunteer.

The Internet is changing the world. It is becoming     71     important part of our lives.

The Internet makes our lives more interesting. We can get all kinds of information on the Internet and share it     72     others. We can make friends and share our ideas and feelings with each other by sending e-mails or chatting on-line. We can also do shopping, study, listen     73     music and watch movies. This helps make life easier.

However, the Internet is not perfect. We should use     74     safely. Every-one can post information, and not all of it is true. Some people use the Internet to hurt others and try to get money by cheating. Some young people usually spend too much time     75     games and so on.

The Internet can change our lives for the better, but we should use it care-fully.

In recent years, with the     76     of technology, many popular apps have been produced. These days, an app has     77     great attention. It is Douyin, a video sharing app. Douyin first appeared in 2016. Now it is many people’s favorite app,     78     the young.

With Douyin,     79     can record videos, edit them and share them online. It is very easy and interesting. We can share our videos with our friends with just a tap on the mobile phone screen. What’s more, it’s a great way to spend our free time     80     looking through those funny videos.

However, every coin has two     81    . The app also has bad things. On the other hand, some people spend long hours on the app, which is     82     to their health. On the     83     hand, users can also find some bad things on the app. Such thing is unsuitable and meaningless.

In my opinion, Douyin should check the videos     84     they are uploaded in order to keep a healthy environment for its users. Douyin is not good     85     teenagers. We should not use it too often.

Some people think that smoking can help them relax.     86     fact, smoking is really unhealthy. Do you know that there are over 4000 chemicals in cigarettes? These chemicals are bad     87     our bodies. They can cause cancer and other diseases.

The smoke from cigarettes harms     88     only smokers but also other people. It’s called “second-hand smoke” and it can     89     more dangerous and has higher risks. Smokers shouldn’t use smoking to help them relax. They must give     90     smoking as soon as possible.

Do you like reading? In the modern life, reading is     91     more and more important, because it is one of the     92     ways to get success. I live in the     93     part of Shandong Province. My mother always     94     many kinds of books to me.

I     95     reading is magical. If you sit down with a good book to read, you will go into a     96     world. If you like reading something about nature, you can enjoy the     97     of it. If you love reading stories, you will experience different     98    . If you enjoy reading books about     99    , you may learn more about pop and rock. Most importantly, when you are reading, you can not only relax     100     but also learn more things. Certainly, I will keep my reading habit.

    101     you been asked for money by some disabled beggars (乞丐) while you’re enjoying shopping? Do you have any pity on (同情) them who are so poor and lonely or do you just feel afraid of their terrible shapes? As one of     102     most special groups, disabled people’s living conditions (条件)—not only their material (物质的) conditions, but their mental (精神的) world, really need improvement.

The treatment for disabled people should go like this: First, don’t look down upon them. Don’t be afraid     103     looking at the terrible shapes of the disabled. Try to treat them equally. Because they are a part of society (社会), we can’t discard (抛弃) them. The second is to help them     104     much as we could. If you can be a volunteer and do some work for disabled people, that would be very nice. That does help not only to the disabled people but also to     105     because you will feel good after your kind action.

If every one of us gives a little love, the world will become a beautiful wonderland!