1. (2019六上·龙岗期中) 阅读理解

    Everyone wants to have healthy teeth. Here are some ways to keep your teeth strong and healthy.

★Brush your teeth at least (至少) twice a day, Spend three minutes each time brushing them. ★Give proper (适当的) time to brush your teeth well, after getting up and before bedtime. ★Brush all of your teeth, not just (仅仅) the front ones. Spend some time on the teeth along the sides and in the back. ★Use a soft toothbrush (牙刷). It does not harm (伤害) your teeth. ★It is important to check up (检查) your teeth. ★Change your toothbrushes every three months. ★If you cannot brush your teeth, rinse (漱洗) your mouth with water.

    These are some ways you can use very easily. They are very helpful in keeping your teeth healthy. Another important thing is eating healthy food such as fruit and vegetables, milk, eggs and meat.

1. （1） When is the proper time to brush your teeth?

   A . Before breakfast and before dinner. B . Before breakfast and after dinner. C . After breakfast and before dinner.
3. （2） How often should you change your toothbrushes?

   A . Every three months. B . Every two months. C . Every five months.
5. （3） What should you NOT do for your teeth?

   A . Brush your teeth for three minutes each time. B . Rinse your teeth if you have no time to brush your teeth. C . Just brush the front teeth.
7. （4） The passage is about ________________.

   A . how to take care of the teeth B . how to buy the toothbrushes C . how to check up the teeth
9. （5） What may the writer be?

   A . A teacher. B . A dentist. C . A farmer.