There are many things you can do to improve your memory, such as using different memorizing methods as well as taking special care of your health.

It is important that you regularly stimulate（刺激）your brain to make your memory more efficient. For example, you can do activities that you do not usually do and change your daily habits. Learning a new skill helps your brain develop. When trying to memorize something, you should pay attention to the most important things about it. Do not allow other thoughts to enter your mind because this will lower your chances for remembering things well.

An excellent way to improve memory is to connect information with pictures. Try to see the pictures in your mind. Taking notes, being organized and keeping a diary will also be useful.

Healthy food and plenty of vitamins（维生素）are necessary for your memory to work properly. Drinking a lot of water also helps keep your memory. What’s more, in order to have a good memory, you need to sleep for at least 7-8 hours a day to keep your brain awake. When you are asleep, your brain stores memory. Not enough sleep can, therefore, cause problems with storing information. In addition, being tired will stop you from being able to concentrate（聚精会神）well. Caffeine in tea and coffee is very good at stopping sleepiness and helping concentrate, but some people believe they may cause problems with memory.

Most of the ants(蚂蚁) are workers. They are very busy. They look for food and take care of the young ants. Each family of ants has a queen ant. The queen ant doesn’t work, She is important because she lays eggs. These eggs will become new ants.

There are many kinds of ants in the world. One kind of ants is very strong. People are afraid of them and the other animals are afraid of them. too.

These ants often do somethings in big groups They eat all the animals on their way. They can kill and eat elephants. Sometimes the ants can even kill people and eat them. When the ants come near, people leave their homes. People are sometimes happy after the ants pass by, because they can see no insects or snake.

If someone is choking (窒息), it’s important to know what to do to help. The Heimlich maneuver can save a life in seconds. There are four ways to perform the Heimlich maneuver.