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In today’s busy world, staying healthy can be tough. With work, school, and family duties, finding time for exercise, good food, and taking care of yourself is hard. But making small daily changes can help you feel better.

Eat a balanced diet. A balanced diet is important for good health. It should include fruits, vegetables, whole grains, lean proteins (瘦肉蛋白质), and healthy fats. Try to eat less junk food, sweet drinks, and saturated fats (饱和脂肪). A balanced diet gives your body the nutrients it needs.

Exercise regularly. Regular exercise has many advantages. It helps cut down on the risk of chronic (慢性的) diseases like heart disease, diabetes, and obesity. Aim for at least 30 minutes of exercise most days of the week. You can also try strength training exercises, like lifting weights or doing bodyweight exercises, to help improve health.

Get enough sleep. Sleep is important for good health. Not getting enough sleep can lead to obesity, heart disease, and depression. Aim for 7-8 hours of sleep each night and try to keep a regular sleep schedule to help your body get into a routine.

1.1.What does the underlined word “tough” mean?

A Bored.

B Difficult.

C Easy.

D Necessary.

解析：选B。B 词义猜测题。根据划线单词后一句“With work, school, and family duties, finding time for exercise, good food, and taking care of yourself is hard.”由于工作、学习和家庭责任，找时间锻炼、吃好和照顾好自己是很困难的。由此可推知，tough的意思和hard相近。故选B。

2.2.Which of the following is unhealthy food?

A Fruits.

B Sweet drinks.

C Vegetables.

D Whole grains.

解析：选B。B 推理判断题。根据第二段中的“It should include fruits, vegetables, whole grains, lean proteins, and healthy fats. Try to eat less junk food, sweet drinks, and saturated fats.”可推知，水果、蔬菜、全麦、瘦肉蛋白质和健康脂肪属于健康食品；垃圾零食、甜味饮料和饱和脂肪类属于不健康食品。故选B。

3.3.What’s the advantage of regular exercise?

A It brings people heart disease.

B It makes people fatter.

C It has no effect on health.

D It makes people stronger.

解析：选D。D 细节理解题。根据第三段内容可知，定期锻炼有利于健康，使人们更强壮。故选D。

4.4.How many hours of sleep does the writer recommend each night?

A Five to six hours.

B Six to seven hours.

C Seven to eight hours.

D Eight to nine hours.

解析：选C。C 细节理解题。根据最后一段中的“Aim for 7-8 hours of sleep each night”可知，作者建议每晚睡七到八个小时。故选C。

5.5.Which of the following can be the best title of the passage?

A Ways to Improve Your Sleep Quality

B How to Stay Healthy in a Busy World

C The Advantages of Regular Exercise

D A Balanced Diet for Good Health

解析：选B。B 主旨大意题。根据全文内容可知，文章主要介绍了几个帮助我们保持健康的方法。故选B。