5．What is the main idea of the passage?

A．Eating the right food and exercising regularly will make you feel and look better.

B．Healthy eating is the only way to keep fit.

C．It is important to give your body enough water，energy and sleep.

D．Eating the right food，drinking plenty of water，exercising regularly and having enough sleep will make a teenager feel and look better.

答案　D

Ⅱ.课文阅读填空

1.Ways for Teenagers to Look and Feel Better Eating the 2.right food If you 3.skip meals，you don't get enough energy，and then you will feel tired.For a healthy diet，you should eat mostly rice，bread，vegetables and 4.fruit. Drinking enough water A person needs 6 to 8 glasses of water a day because water can keep your system 5.clean，improve your skin and give you healthy hair. 6.Taking regular exercise The advice of experts is that teenagers should spend at least 30 minutes exercising，five times a week，because it makes people look good，feel good and be 7.healthy. Having enough sleep A good amount of sleep every night is also 8.important for your health.Teenagers need 8 to 10 hours of sleep each night because loss of sleep can make you look 9.tired and even cause you to gain 10.weight.

重点词汇

1．Diets are useless in the long term...

从长远的角度来看，节食是没有用的......

(1)useless adj.无用的；无效的

be useless＝be of no use无用的

(2)in/out of use经常/不再用的

come into use开始被使用

bring/put...to use加以使用

It is no use doing.../It is useless doing/to do...做......无用。