Would you tell others your QQ password (密码)? Of course not. But if your passwords are too easy, hackers(黑客) can guess them.

These days we have too many passwords to remember. To make life easy, some people use simple passwords, like123456, “888888”or “abc123”. Many also use personal information (个人信息), such as a birthday, as passwords.

But these easy passwords are not safe online. Here are some tips for a safer password.

Upper-casing (大写) your password is a good start. Put numbers and symbols (符号) in your password. Don’t use words you can find in a dictionary (词典). Make your passwords long.

For example, make a password of nine letters, with numbers and symbols in it. Then it will take hackers hundreds of years to work out!

Never use personal information as a password, Use different passwords for different things. Change your passwords every 90 days.

Do you like mice (老鼠)? I think most people will say NO. People think mice are dirty and make people ill. Is that true? Today, let’s talk about this kind of animal.

Many people think mice are nasty and that’s not true. In fact (事实上), mice wash their bodies a few times a day. Most mice like to live near people because they can get food and a good home easily. Mice are small animals. They can only live for one to three years and they can’t see things well.

Mice are good at climbing. They can climb trees quickly. Mice are also good at swimming. They can swim fast in the water. Mice are clever animals and they can learn things quickly. If you put them in a maze (迷宫), they can quickly find their way out.

Mice are very useful to scientists. Scientists usually use them to do some experiments (试验). We can also see mice in some films. Many children like Disney’s Mickey Mouse.

A．Mice don’t wash their bodies every day.	B．Most mice live far from people.
C．Mice can live a very long life.	D．Mice can’t see things well.

We all know that getting the flu is not fun. There are headaches, coughs, fevers, and other terrible feelings. To help us get better, we take some medicine and get much rest. We also drink lots of water and eat healthy food to make us feel better.

However, some people don’t want to get sick at all. So, they get a flu shot before the flu season starts. The flu shot is in fact, a vaccine (疫苗), not usual cold medicine. It will protect them from the flu.

The vaccine introduces some of the flu into the body. But don’t worry. The flu is dead and won’t make you sick. It will teach your body to know it and fight it off in the future, though.

Vaccines not only protect you but also protect others. That’s because they help stop diseases (疾病) from spreading (扩散) from person to person. When fewer people have the diseases, the chances of getting them go down. Sometimes, the diseases completely go away.

Even though vaccines are quite safe, some adults are afraid of them. Their worry is that the vaccines will cause serious side effects (副作用). Vaccines might cause side effects, but they are usually not as terrible as people imagine. For most people, vaccines are ▲ and make them better.

So, they are believable and people want them in their bodies. These days, people are in line for the COVID-19 vaccines and hope they can protect them well!