9、根据上下文和括号里的汉语提示，在下面的空白处写出正确的单词和短语，使短文意思完整。
When you
laugh， you will (1)______(张开) your
mouth and your teeth. The healthier those teeth are， the happier you look. Why is that？
It‘s (2)______(因为) your teeth are important in
many ways. If you take care of them， they’ll help to
take care of you. Strong， healthy teeth help you eat the right food to help you grow. They
also help you speak clearly.
You can
take care of your teeth by doing like these：
Brush your
teeth (3)______(一日两次) after breakfast and before
bedtime. If you can， brush (4)______(午饭后) or after eating sweet cakes.
Brush all
of your teeth， not just the
front ones. Spend some time on the teeth along the sides and in the back.
Take your
time while brushing. Spend (5)______(至少) 3 minutes each time you brush.
Be sure
your toothbrush is soft(柔软的)。 Ask your parent to help you get a new toothbrush (6)______(每三个月)。
Learn how
to floss(用牙线清理) your
teeth， which is a
very important way to keep them healthy. It feels strange when you do it at
first， but soon you‘ll (7)______(习惯于) doing it. The floss gets rid
of food that’s hidden
between your teeth.
Brushing
and flossing (8)______(保持) your teeth healthy. You also
need to care about what you eat and drink. Eat (9)______(许多) fruits and vegetables and drink
water (10)______ (代替) drinks.
「答案与解析」