请认真阅读下面的短文,根据所给单词或语境完成短文。
A healthy lifestyle is very important for students. It helps them study well and stay happy every day.
Eating right is the (1)
first
(one) step. Many students like sweet food, such as candies and cakes. They think that these foods taste good and give them energy. But too much sugar makes such food (2)
unhealthy
(health). It is bad for their daily life and can hurt their (3)
teeth
(tooth). So, students should eat more fruit and vegetables instead of too many sweets.
Exercising often is also important. Doing sports like swimming and running (4)
is
(be) a great choice. You needn't do it every day—even once a week can make you much (5)
stronger
(strong). Running, playing basketball and dancing are good too. They help you stay active and energetic.
However, some students have bad habits. For example, Tom, a 13-year-old boy, often stays up late to play computer games, (6)
so
he gets up late and skips breakfast. He eats hamburgers for lunch every day and never eats vegetables. Now he is fat and feels tired (7)
in
class. He can't run fast or play basketball with friends. So he plans (8)
to change
(change) his lifestyle.
Parents and teachers should help children learn (9)
about
healthy habits. Let's tell (10)
them
(they): eat well, exercise often and sleep early. A healthy life isn't hard to have—just start with small steps today.
