阅读理解

　　The weather is getting hotter．You are thirsty after playing basketball or riding home from school．A cold drink may be just the thing．But be careful what you are drinking．Something that looks cool may not be good for your health．

　　There are plenty of “energy drinks” on the market．Most of them have beautiful colors and cool names．The lists on them tell you they are helpful to your health．Sounds great!

　　But after a careful check you may find that most energy drinks have lots of caffeine(咖啡因)in them．These drinks are especially aimed at(针对)young people．Makers sometimes say their drinks make you better at sports and can keep you awake．But be careful not to drink too much．

　　Caffeine makes your heart beat fast．Because of this, the International Olympic Committee has limited(限制)its use．Caffeine in most energy drinks is at least as strong as that in a cup of coffee or tea．Possible health dangers have something to do with energy drinks．Just one box of energy drink can make you nervous, have difficulty sleeping and can even cause heart problems．Scientists say that teenagers should be discouraged from taking drinks with a lot of caffeine in them．

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　　Television has now come into nearly every family．It has 　　1　　 a very important part in 　　2　　 life．School children in the USA watch TV about twenty-five hours a 　　3　　．

　　Some parents feel the television is good 　　4　　 their children because it helps them learn about their country and the world．　　5　　 the help of some programmes(节目)of education(教育)，children do 　　6　　 school．

　　　　7　　 parents do not let their children 　　8　　 TV too much．They say the TV programmes are not good and children may 　　9　　 bad things from them．

　　Men have invented many things which have brought much convenience(方便)．Television is one of them．If it 　　10　　 carefully planned, watching TV can be good for children．

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