Today I thought I’d blog about a question     1     has been asked many times—how do you stay safe online and avoid bad     2     (experience) on the Internet? I’m not an expert, but many years as a     3     (blog) have taught me a thing or two.

First     4     all, there’s the golden rule of the Internet: If you see or read something     5     makes you feel uncomfortable, leave the site     6     (immediate). Don’t post     7     (comment) or click     8     anything. Second, protect your privacy. Don’t give     9     your address or phone number. Someone might use the information     10     (steal) your identity. Identity theft is a common and serious problem. Third, be polite.     11     (be) online is no excuse for     12     (be) rude, and you don’t want to become     13     target for a troll or cyberbully. A troll is a person     14     posts comments or questions in order to stir     15     trouble online. Trolls often use several false names so that they can stay on a site. A cyberbully uses the Internet to be mean     16     others. Like a troll, a cyberbully will also write something mean but it is usually directed     17     particular people. He or she may also post     18     (embarrass) photos and information about those people. However, the more polite you are, the less likely     19     is you will be attacked.

Have you had any bad     20     (experience) online, or do you have some good advice for     21     (stay) safe? Post your comments below!

Boy 579: Last year, we were having     22     (problem) in our chat room. Mean     23     (comment) were being posted by someone we didn’t know. I think he or she was only trying     24     (make) trouble.

Amy: A girl at my school had a very bad experience online. A photo of her had been posted online and she was being made fun     25    . It seemed like a joke at first,     26     the girl was very upset.

2 . The Internet plays a big part in human life. We use it for work and pleasure. We use it to learn a new language. We find advice on it. We use it to connect with our family and friends. We use it to stay in touch with events we care about. The list gods on and on.

As far as the Internet being a part of our lives — well, that train has left the station — there is no possibility of going back to an Internet-free life. But can using the Internet too much be bad for our health? It might be, say researchers. A new study finds that heavy Internet use may be connected with high blood pressure (血压)in a young group: teenagers.

The study results show that tens who spend at least 14 hours a week only online may cause high blood pressure, which makes your heart and blood vessels(血管) work too hard. Over time, this extra pressure increased your risk of a heart attack. High blood pressure can also cause other diseases.

The Henry Ford Hospital in Detroit, Michigan did the study. 335 young people, from 14 to 17 years old, took part in it. 134 of the teens are described as “heavy Internet users” And researchers find that out of these 134 tens, 26 have high blood pressure. The rescarchers say the study is the first to connect heavy web use with high blood pressure.

The lead researcher is Andrea Cassidy-Bushrow. She says, “Using the Internet is part of our daily life, but it shouldn't ruin us.” Ms Cassidy-Bushrow adds that it is important for teens to stop to have a rest regularly from their computers or smartphones and do some kinds of physical activities. She also suggests that parents shouldn't let their children use the Internet for more than two hours a day, five days a week.

Nowadays, one of the common     1     (phenomenon) is to see ordinary people listening to music with headphones,     2     (absorb) themselves in their own world. Moreover, people often share     3     (satisfy) records with their friends. In     4     (add), we can gain relief from pressure in the deepest part of our being.

    5     is proved that music can be used as a cure     6     diseases. Listening to positive and peaceful music will have     7     positive impact on people, which enables many patients     8     (reduce) pain. Classical music has reached a stage     9     it is often used in cancer treatment     10     the aim of relieving aches and side effects.

5 . China has set new rules limiting the amount of time children can play online games. The rules limit children to just three hours of online game playing a week. That is one hour between 8 p. m. and 9 p. m. on Friday, Saturday and Sunday most weeks.

Li Zhanguo has two children aged 4 and 8. Even though they do not have smartphones, they enjoy playing online games. Like many other parents. Li is happy with new government rules. But experts say it is unclear if such policies can help prevent addiction to online games. Children might just get addicted to social media instead. In the end, experts say, parents should be the ones to set limits and support good practice.

There has been a growing concern in China about gaming addiction among children. Government reports in 2018 found that about one in ten Chinese children were addicted to the Internet. The new rules are part of an effort to prevent young people from spending too much time on unhealthy entertainment. That includes what officials call the “irrational fan culture”

Under the new rules, the responsibility for making sure children play only three hours a day as largely on Chinese gaming companies like Net Ease and Ten cent. Companies have set up real-name registration systems to prevent young users from going past game time limits. They have used facial recognition technology to check their identities. And they have also set up a program that permits people to report what is against the law. It is unclear what punishments gaming companies may face if they do not carry out the policies. And even if such policies are performed, it is also unclear whether they can prevent online addiction.

A specialist treating Internet addiction expects about 20 percent of children will find ways to break the rules by borrowing accounts of their older relatives and find a way around facial recognition. In his opinion, short-video alps such as Douyin and Kuaishou are also very popular in China. They are not under the same restrictions as games.

When you are surfing the Internet, you can be anyone or anything. Avatars are a key part while people use the Internet to communicate. and express themselves. The first simple 2D avatars     1    (appear)in role-playing computer games in     2    1980s. Nowadays, avatars are everywhere and people can choose an avatar from a selection of images     3    (make) by others or create their own ones. You can also use avatars that move around and talk while     4    (type) in your message. The avatar that you choose says a lot about your personality. Most people create avatars that have similar features to their personalities and that look more or less like them. People     5    (obvious) make a few improvements to their avatars to make them look nice. Avatars not only let you express yourself but also give you much room for creativity. But the use of avatars has also caused a few     6    (concern). Some users worry that they are spending so much time in virtual worlds     7     they are becoming afraid of meeting people in the real world. Others worry that some people can use avatars     8    (cheat) online. However, there are some people     9    (view) avatars in a more positive light. They look forward to a time     10     their avatar will act like a real person.

IS EXPLORING SPACE

A WASTE OF TIME AND MONEY?

NASA satellite image of Typhoon Goni

Countries around the globe are spending billions of dollars and lots of time on various space missions, whether to Mars or other planets much further away. Some people argue that we should stop wasting time and money exploring space. Instead, we should feed the world’s poor and find immediate solutions to other problems, such as pollution and fatal diseases. However, others feel this is a shallow view which fails to realise how exploring space helps us.

Firstly, exploring space has already made a difference in the fight against world hunger. It has directly resulted in the many satellites that now orbit Earth. A number of the satellites record data on land and weather patterns. Then the data is transmitted to scientists on Earth. After careful analysis, the scientists can provide useful recommendations and advice for farmers. As a result, space-based science has helped farming in its efforts to grow enough food to feed Earth’s increasing population.

Secondly, space exploration has already promoted technological improvements that benefit us all. High-end products around the world are made to a higher standard now because of advanced technology which was first created to meet the requirements for space exploration. For example, space technologies have helped the research and development of different types of new material. They have also helped companies make better heart monitors and other machines that doctors regularly use. Today, space technologies are widely used in all kinds of industries, and everyday products such as GPS, memory foam pillows, and smartphone cameras are changing our lives.

Finally, sending astronauts into space has helped people to think about the world’s problems and even to find ways to solve them. Seeing pictures of our planet as an island in a black sea made people realise that our planet’s resources are limited. In order to provide for such a rapidly increasing population, scientists are trying to find other planets that could one day be our new home. The greatest attention at present is on Mars because it is closer to Earth. In the future, humans may live on both planets.

In closing, exploring space provides the world with many different benefits. Therefore, it should continue so as to provide new and better solutions to people’s short-term and long-term problems.