《2024年英语拓展听力与阅读七年级上册译林版》

We all know teeth are important to our life. We celebrate Chinese Teeth Care Day on 20 September. Do you know the life cycle of teeth in your mouth? Children under six years old have twenty baby teeth. From six to thirteen, people lose their baby teeth one by one. Now permanent teeth(恒牙) begin to grow. Between the ages of seventeen and twenty-five, some people grow wisdom teeth (智齿). Of course, wisdom teeth don’t make you any smarter. They look like a symbol(象征) of being grown-ups. Do you know how to keep our teeth strong and healthy? Let’s look at the following tips.
What we can do
- Brush your teeth at least twice a day: in the morning and before bedtime.
- Brush for at least two or three minutes every time.
- Brush up and down on every tooth.
- Use dental floss(牙线) for your teeth to make them cleaner.
- Get a new toothbrush every three months.
What we can’t do
- Don’t eat too much sweet food, and don’t drink too much soda.
- Don’t eat very hard food. That can hurt your teeth.
- Don’t eat snacks before bedtime.
Teeth are important to everyone. Healthy teeth help us eat food to let us grow. They help us speak clearly. And yes, they help us look good.
1. When do we celebrate Chinese Teeth Care Day?______
2. How many baby teeth do children under six years old have?______
3. Why do we need to use dental floss?______
4. How often should we get a new toothbrush?______
5. How do you keep your teeth healthy in your daily life? (请自拟一句话作答)______

答案： On 20 September.
They have twenty baby teeth.
To make the teeth cleaner.
Every three months.
I don't eat snacks before bedtime.(言之有理即可)