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    Many children spend a lot of time watching or playing with electronic media –from televisions to video games, computers and other devices（设备）.

    So, it is natural that parents should wonder about the time children spend looking at a TV or computer screen. Americans say “screen time” when they talk about any time children spend in front of an electronic device.

    Perhaps parents can stop worrying so much about screen time, at least for older boys and girls. In October 2016, the American Academy of Pediatrics (AAP) listed several suggestions for parents and child care workers. Here are some of the suggestions.

●Avoid digital media use in children younger than 18 to 24 months.

●For children aged 18-24 months, avoid letting the child watch media alone. And avoid using media as a way to comfort your child.

●For children two to five years of age, allow one-hour screen time on “high-quality（质量）programming” a day and watch it with your child.

●For children aged 6 and older, don't spend too much time using media. Also, make sure that screen time does not take the place of healthy sleep, exercising, doing homework and other activities.

●Make sure to have media-free time together as a family, such as dinner or driving. Also make some areas of the home media-free. Turn off you child's electronic devices an hour before bedtime.

    Sharks(鲨鱼) are the most frightening animals in the sea. Sometimes we can see sharks swimming in the sea around Hong Kong. People put nets around some beaches to protect swimmers. When there is a "shark's flag", people must stay on the beach. It will be too late if a shark can swim sixty kilometres an hour to you.

    There are 30 kinds of sharks and 25 kinds of them are dangerous. The whale sharks are, very big. They can grow to 18 metres long, but they are not dangerous to people. The jaws(大白鲨) and the tiger sharks are the most dangerous kinds of sharks.

    Do you know all sharks must keep swimming, or they will go down?

All sharks can feel everything that happens around them. We must keep calm and don't make any noise when a shark is swimming near you.

    If a shark loses a tooth, a new one will grow out very quickly. So sharks always have many sharp teeth.

Peking Opera is one of the forms of ancient Chinese culture. In Peking Opera, each character has their own face painted in a 1 way. The audience (观众) can know who the good guy is and who the bad guy is by 2 the face painting. Where did this kind of face painting come from? An old story tells us that it was related to Prince Lanling. This prince was one of the four most 3 men in ancient China. Some soldiers in the prince's army 4 that he was weak because of his good looking face. So, to make himself look 5 , the prince wore a mask with an ugly face painted on it. Another story about face painting has something to do 6 Li Longji, an emperor in the Tang Dynasty.He loved opera very much. One day, the actor who played the clown in Peking Opera fell ill right before a performance (玉) 7 others wouldn't be able to recognize him. Therefore, the 8 on the clown's face became a convention (惯例). Later, the actor who played the clown 9 the jade with white powder (粉末). As time went on, face painting started being used to show the characters of different roles. It has become one of many special 10 of expression of Peking Opera.

要求 :

1. 文章应包含思维导图中的所有信息, 可适当发挥 ;

2. 文章中不能出现真实的个人信息 ;

3. 词数不少于 40。

Many people like to take a trip by plane，but I don't like it because an airport （机场） is usually far from the city. You have to get there early and wait for hours for the plane to take off （起飞） and it's often late. You can't open the windows. You can't choose the food. Planes are fast，but it still takes you hours to go out of the airport and into the city. 

I like traveling by train. I think trains are safe. The stations are usually in cities. When you are late for a train，you can catch another one. You can walk around in the train and open the windows. You can see many interesting things on your way. I know it takes a little more time. 

I also like cars. You can start your trip when you want to，and you don't need to get to a railway station or a bus stop. Also you can carry many things with you in a car. But sometimes there are too many cars on the road. 

Someone says learning new words is the most difficult part in language learning. Maybe everyone has trouble in 1 new words. It is not easy to remember and use them correctly. The following 2 will help you a lot.

It can be a good idea to divide the new words 3 groups according to the meanings. Thinking about the connections between words may help you to remember them. The more you practice, the 4 you will use them. You can also write a list of some new words. Express your ideas with them and discuss the uses of these words as 5 as possible. However, there is one more thing you should 6 attention to. Don't try to learn too many words at one time. Choose several important 7 to you. Repeat their pronunciations, spellings as well as their meanings in your mind. Learn a little every day and you will learn a lot 8 a few months. What's more, be confident. You'll surely meet many difficulties while learning new words. Face them bravely and be9 with yourself. The secret to success is sticking to learning. 

It is the skills that can help you know more words quickly. The skills 10 can make you learn new words easily are helpful.