—I think you are right. We should talk with our parents or they may feel sad.

    The Internet, social media, and smart phones allow you to learn many things.____However, just like in the real world, not everyone online is your friend. Some may use these tools to send unpleasant messages to you, and some may use your information to do something bad. It's very important to know how to stay safe and have positive experiences online. Here are some tips for you.

    Be careful about friend or follower requests. When you have a friend or follower request, check the person's information first.____Only accept friend or follower requests from people you have met in the real world. Don't chat with people you don't know or trust. This is a good way to keep you safe.

    Review location(定位) services on your phone and other mobile devices.____They may put you in danger because others can find you easily. To make sure of your safety, turn off the "location services" or "locations settings" features on your mobile devices. Also turn off GPS for the camera, chat and other social media apps.

    ____Strong passwords (密码）should have some upper and lower-case letters, numbers and symbols. If you have a strong password, it'll be difficult for others to know it. Also, avoid having the same password for all your social and education accounts (账户). It is really not safe for your accounts.

    ____If someone sends unpleasant messages to you online, find someone you feel safe talking to. For example, you can talk to a parent, a teacher or a trusted adult and ask him to help report and block(屏蔽) the person. Don't try to do the same thing when others do something that hurts your feelings online.

A. Create strong passwords.

B. Try to get help when necessary.

C. Find out if he or she is someone you know.

D. Friend requests can tell a lot of information.

E. Talk to someone you find safe to talk to online.

F. They also allow you to talk with friends online.

G. Location services can tell others where you are.

    Money is the root of all evil (邪恶) and new study claims there may be some truth behind the saying. Scientists at the University of California Berkeley, US, announced on February 27 that rich people are more likely to do immoral things, such as lie or cheat, than poorer people. The scientists did a series of eight experiments. They published their findings online in the Proceedings of the National Academy of Sciences (PNA《美国国家科学院院刊》).

    They carried out the first two experiments from the sidewalk near Berkeley. They noted that drivers of newer and more expensive cars were more likely to cut off other cars and pedestrians at crosswalks. Nearly 45 percent of people driving expensive ears ignored a pedestrian compared with only 30 percent of people driving mow modest cars.

    In another experiment, a group of college students was asked if they would do immoral things in various everyday situations. Examples included taking printer paper from work and not telling a salesperson when he or she gave back more change. Students from higher — class families were more likely to act dishonestly.

    According to the scientists, rich people often think money can get them out of trouble. This makes them less afraid to take risks. It also means they care less about other people's feelings.

    Finally, it just makes them greedier. “Higher wealth status seems to make you want even more, and that increased want leads you to bend the rules or break the rules to serve your self- interest,” said Paul Piff, lead scientist of the study.

    Piff pointed out that the findings don't mean that all rich people are untrustworthy or all poor people honest. He said the experiments were to show how people living in different social situations express their instincts（本能）and values in different ways.