22.What Is Caffeine(咖啡因)? Caffeine is something that you can find in some (1)d
,such as coffee and tea.Caffeine makes you feel more awake.It can also give you a short burst(爆發(fā)) of energy.Your (2)h
beats faster when caffeine is in your body. Why Can Caffeine Be a Problem for You? Like many kids,you probably (3)e
drinking cola very much.If you drink too much cola in a day,your body will get too much caffeine.Then,you might feel nervous or (4)w
,or be in a bad mood (情緒).Or you might get an upset stomach and a headache.You can also have trouble(5)f
asleep at night. Why Should You Stay away from Energy Drinks? Energy drinks (6)u
contain(含有) the most caffeine.Some energy drinks have three times more caffeine than cola does.These drinks have far too much caffeine for kids.So,kids should drink milk,water or fruit juice,(7)b
these drinks don't contain caffeine.What's more,(8)c
shouldn't drink more than one can or glass of cola in a day or drink it too close to bedtime. It is better to get your energy from(9)h
food and drjye.aiks.In this way,you can have lots of energy to study,play and grow(10)w
A guideline on hardworking spirit education came out recently in order to help more students of different ages to get working spirit.________________________________________________________