Question

【题目】We use teeth to eat and we need teeth to talk. But do you really know them? Let’s meet the “cool tools” in your mouth and learn how to protect them.

【1】, unlike your brain or heart. The first tooth usually comes out when a baby is 6 to 12 months old. Then more and more teeth begin to grow. 【2】. We call them baby teeth, and there are 20 of them. Baby teeth cannot stay with us forever. Baby teeth will start to fall one by one, when you are 6 years old. 【3】. You have to suffer the pain of growing adult teeth 12-13years old. An adult usually has 28-32teeth. Why pain?

A tooth with a hole is a decayed tooth(蛀牙). 【4】, you’ll get one. Then germs(细菌)will build up and eat away your teeth. So, try to clean your teeth after you eat candy or just eat less.

In America, there is a lovely story for children. It is said that there are fairies (精灵）for everyone’s baby teeth. 【5】, he can put it under his pillow before sleeping. Then when he wakes up in the morning, he always finds money or a small present from the tooth fairy instead of his tooth in its place.

A.They have to make room for your second set of teeth—adult teeth

B.Your teeth are not ready to work when you are born

C.If you don’t clean your teeth regularly

D.Most kids have their first set of teeth at 3 years old

E.Each time a child’s baby tooth falls out

F.He saw a fairy singing.

A.They have to make room for your second set of teeth—adult teeth

B.Your teeth are not ready to work when you are born

C.If you don’t clean your teeth regularly

D.Most kids have their first set of teeth at 3 years old

E.Each time a child’s baby tooth falls out

F.He saw a fairy singing.

Answer 1

【答案】

【1】 B

【2】 D

【3】 A

【4】 C

【5】 E

【解析】

这篇文章主要讲了当宝宝6到12个月大时，第一颗牙长出来，成人的牙齿比孩子多，如果你不经常清洁你的牙齿，你会有牙洞。

【1】根据下文Your brain or heart. The first tooth usually comes out when a baby is 6 to 12 months old.可知，上文是Your teeth are not ready to work when you are born

当你出生的时候，你的牙齿还没有准备好工作。故选B。

【2】根据下文We call them baby teeth, and there are 20 of them. Baby teeth cannot stay with us forever.可知上文是Most kids have their first set of teeth at 3 years old大多数孩子在3岁时就有了第一副牙齿。故选D。

【3】根据上文Baby teeth will start to fall one by one, when you are 6 years old.可知下文是They have to make room for your second set of teeth—adult teeth他们必须为你的第二组牙齿让位，故选A。

【4】根据下文you’ll get one. Then germs(细菌)will build up and eat away your teeth可知上文是If you don’t clean your teeth regularly如果你不定期清洁牙齿。

故选C。

【5】根据下文he can put it under his pillow before sleeping.可知上文是Each time a child’s baby tooth falls out每次孩子的乳牙掉下来，故选E。