Caffeine myth or caffeine fact? It's not always easy to know. Chances are you have some misunderstanding about caffeine. Read on. Here are some of the most common myths about caffeine and some facts have been gathered to shed light on them.

Myth one: Caffeine is addictive

    Caffeine is a stimulant(起刺激作用的食物) to the central nervous system, and regular use of caffeine does cause mild physical dependence. But caffeine doesn't threaten your physical, social, or economic health the way addictive drugs do. If you stop taking caffeine abruptly, you may have symptoms for a day or more, especially when you have been used to consuming two or more cups of coffee a day. However, caffeine does no cause the severity of withdrawal or harmful drug-seeking behaviors as drugs or alcohol. For this reason, most experts don't consider caffeine dependence a serious addiction.

Myth two: Caffeine probably causes insomnia(失眠症)

    Processed mainly through the liver, caffeine has a relatively short half-life. This means you can get rid of half of it within about five to seven hours on average. After eight to ten hours, 75% of the caffeine is gone. For most people, a cup of coffee or two in the morning won't prevent them from sleeping at night. Consuming caffeine later in the day, however, can interfere with sleep. Your sleep won't be affected if you don't consume caffeine at least six hours before going to bed.

Myth three: Caffeine harms children

    As of 2004, children aged 6 to 9 consumed about milligrams of caffeine per day. This is well within the recommended limit. However, energy drinks that contain a lot of caffeine are becoming increasingly popular, so this number may go up. Some kids are sensitive to caffeine, developing temporary anxiety or irritability, with a “crash” afterwards. Also, most caffeine that kids drink is in sodas, energy drinks, or sweetened teas, all of which have high sugar content. These empty calories put kids at higher risk for obesity. Even if the caffeine itself isn't harmful, caffeinated drinks are generally not good for kids.

Myth four: Caffeine has no health benefits

    Caffeine has few proven health benefits. But the list of caffeine's potential benefits is interesting. Any regular coffee drinkers may tell you that caffeine improves alertness, concentration, energy and clear-headedness. Scientific studies support these subjective finding. One French study even showed a slower decline in cognitive ability among women who consumed caffeine. Other possible benefits include helping certain types of headaches. These research findings are interesting, but still need to be proven.

    Maybe you are an average student. You probably think you will never be a top student. However, anyone can become a better student if he or she wants to. Here is how

    {#blank#}1{#/blank#} When you plan your week, you should make a list of things that you have to do. After making this list, you should make a schedule of your time. Choose a good, regular time for studying. Of course, studying shouldn't take all your time. Don't forget to set aside enough time for entertainment.

    Find a good place to study. Look around the house for a good study area. Keep this space free of everything but studying materials. No games, radios, or television.

    Make good use of your time in class. {#blank#}2{#/blank#} Listening carefully in class means less work later. Taking notes will help you remember what the teacher says.

    Study regularly. When you get home from school, go over your notes. Prepare lessons before class and try to know what your teacher is going to discuss the next day. Do read that material. {#blank#}3{#/blank#}

    {#blank#}4{#/blank#} The purpose of a test is to show what your have learned about a subject. The world won't end if you don't pass a test, so don't be over-worried.

    {#blank#}5{#/blank#} You will probably find many others after you have tried these.

A.   There are other methods that might help you with your studying.

B.    Develop a good attitude to tests.

C.   Make full use of class time to listen to everything the teachers say.

D.   No one can become a top student unless he or she works hard.

E.    Plan your time carefully.

F.    A weekly schedule may not solve all your problems

G.   This will help you understand the next class.

Overcome Culture Shock in the Classroom

    Culture shock occurs in a classroom when students are exposed to a new situation.{#blank#}1{#/blank#}. However, it can also happen to students moving from a small town to a large city, to home-schooled students starting formal school education or to students progressing from one level of education to another. There are several strategies that teachers can use to help students overcome culture shock.

    Make group rules

    Brainstorm(集体讨论) group rules with the class as a whole to create a safe space and good learning environment.{#blank#}2{#/blank#}. Rules could include respecting differences, listening when someone is speaking and not teasing, for example.

    Provide a partner

    Find a partner for the new student in the adjustment period.{#blank#}3{#/blank#}. A good partner is someone who is friendly, outgoing and patient. The partner should show the new student around the school, spend time with him or her after class and eat lunch with him or her.

    Know the source of a problem

    Identify problems early and work with the student and his or her family to deal with them. {#blank#}4{#/blank#}. It can also be caused by overseas or home school environment. Students and parents need to be aware of all the rules and customs that apply.

    {#blank#}5{#/blank#}

    Create lessons that include information about different countries and traditions. These could include story reading, geography, cultural studies and history. Encourage the student to share some information about himself or herself.

A. Create special lessons

B. Respect other cultures

C. They have lost their own language and culture

D. Explain the rules and require everyone to follow them

E. A partner can help him or her quickly adapt to the new environment

F. Classroom culture shock is often caused by the very different environment of a classroom

G. Typically, this happens when a new immigrant(移民) arrives in a classroom for the first time

    While many students raise their hands in class to ask or answer questions, some people outside school raise their hands to get others' attention. Recently, the project "Raise Your Hands for Luca" has made people realize they can also do something amazing by raising their hands to help a brave boy named Luca Williams.

    Luca comes from England. When he was three, he lost his legs because of a terrible illness. Luca's parents started the Raise Your Hands for Luca Project. They hoped to raise 1.5 million pounds to buy Luca prosthetic legs (假肢) and to pay for the care he needs.

    Since then, many people have joined up by writing "For Luca" on their hands and putting the picture of it onto the website. The project has also caught many big stars' eyes such as the world famous football star Maradona. Mickey Mouse also joined the project to help Luca. By now, the project has raised about 225, 000 pounds for the little boy.