World Sleep Day，organized by the Would Sleep Day Committee of the Would Association of Sleep Medicine since 2008，is held on March 21 every year.
The aim of World Sleep Day is to celebrate the benefits of good and healthy sleep. Events involving discussions，presentations of educational materials and exhibitions take place around the world and online.
Sleep quality plays a key role in people’s health. Researchers say that there are a lot of advantages if we always get enough sleep. We can be smarter，thinner，healthier and more cheerful. Also we’re to have better skin，better memories and longer lives. When you lose even one hour of sleep for any reason，it will influence your performance the next day.
In general，adults are thought to need at least eight hours of sleep a night，but a recent survey found that，on workdays，only 21% of them really get a full eight hours of sleep，and another 21% get less than six. For teenagers，a healthy amount is about eight to nine hours per night. However，about 80% of high school students don’t get enough sleep because of their schoolwork or some bad habits.
27% of people throughout the world have sleep problems. Now there are over 80 kinds of sleep disorders，and most people know little about their danger. So，for our good life and work，it’s necessary for us to realize the importance of sleep and try to have a good sleep.
【小题1】 How long has World Sleep Day been celebrated so far？
 
【小题2】What is the purpose of World Sleep Day？
 
【小题3】 What will happen if we sleep one hour less than we should？
 
【小题4】Why don’t most high school students have enough sleep？
 
【小题5】 What suggestion will you make about our better sleep？（请自拟一句话作答）
 

Have you ever wanted to stop eating something sweet but you just couldn’t ?Is the first thing you do wehn you get home from schol to look in the biscuit tin ?Can you eat a huge bar of chocolate all by yourself ?Can you say “no”to sweets at parties ?If you can’t ,thenn there is a reason ...perhapos you are a sugar addict !Does that sound funny ?Well ,doctors say that people who eat sweets regularly can easily becoame addicted to sugar .What’s more ,most sugar addicts don’t even realize that they are addicted !Sugar addiction is serious becauase it can really damage your health .doctors say that we should eat food which is healthy such as fresh fruits and vegetables,and that we shouldn’t eat a lot of sugar ,fat or fast food .But sugar addicts can’t follow this advice .They know they must stop eating sweet food,bu htey can’t .
So what can you do if you think you are ddced o he taste of sugar?Well here is some advice :
Eat some fresh fruits when you really want something sweet to eat .
Cut down  son sweet foo lowly .Don’t try to stp eating it at once
You have to tell  your parents ,If they know ,they will help you.
【小题1】What does the nderlined word “damage”mean ?

Have you ever wanted to stop eating something sweet but you just couldn’t ? Is the first thing you do when you get home from school to look in the biscuit tin ? Can you eat a huge bar of chocolate all by yourself ? Can you say “no” to sweets at parties ? If you can’t ,  then there is a reason…perhaps you’re sugar addict (有瘾的人)! Does that sound funny ? Well, doctors say that people who eat sweets regularly can easily become addicted (成瘾的) to sugar .What’s more, most sugar addicts don’t even realize that they’re addicted! Sugar addiction is serious because it can really damage your health .Doctors say that we should eat food which is healthy such as fresh fruits and vegetables, and that we shouldn’t eat a lot of sugar ,fat or fast food .But sugar addicts can’t follow this advice.They know they must stop eating sweet food, but they can’t .So what can you do if you think you’re addicted to the taste of sugar ?Well, here is some advice:
Eat some fresh fruits when you really want something sweet to eat .
Cut down on sweet food slowly. Don’t try to stop eating it all at once.
You have to tell your parents, If they know, they will help you.
【小题1】Who can become addicted to sugar easily?