breathe. Avoiding these bad behaviors in high school will keep you out of trouble and keep you healthy.

　　Get Enough Sleep. It may be tempting to stay up studying all night for an upcoming test, but failing to get a full eight hours of sleep on a regular basis is bad for your health. Getting a good night's sleep，will drastically improve your performance in school and at work.

　　Drink Water. When choosing what to drink with your lunch or while hanging out with friends on the weekend, you will be likely to reach for a soda or an energy drink first. However, both of these options are filled with sugar, caffeine and empty calories that your body does not need. Choosing to drink water will allow all of your organs to function properly.

　　1．routine n． 日常事务

　　2．concentrate v. 集中

　　3．obesity n. 肥胖

　　4．in shape 处于良好状态

　　5．tempting adj. 吸引人的

　　6．drastically adv. 大大地

　　1．What should we do if we want to live a healthier life as adults?

　　2．Which is a healthy habit，drinking or smoking?

　　【答案】　1.We should develop healthy living habits.

　　2．Neither.

Section Ⅰ　Introduction & Vocabulary and Reading－Preparing