Question

Every person has two sets (副）of teeth. The first set of twenty begins to grow when you are over six months old. The second set of thirty-two grows from the age of six until you are about twenty-one years old.

To help your teeth grow strong, you must drink plenty of milk and eat green vegetables. Then your body will have the right chemicals(化学物质)that build teeth.

You should brush your teeth after each meal. Then few bits of food will be left on or between them to cause decay(腐烂). Make sure that you turn the brush and go up and down as well as(和)brushing sideways(向侧面地）. Use dental floss(清牙齿用的牙线)to make sure all food is removed(移走)from in between each tooth. If you can not brush your teeth after eating, rinse(冲洗)them with water, or eat an apple or a carrot.

Try to visit a dentist(牙医）every six months. If there is a hole in a tooth, he or she will fill it. If you do not have it filled, then the hole will grow larger. When a hole grows too big, the tooth may have to be taken out. It is better to keep all your second set of teeth for as long as possible. Filling a gap(豁口)where a tooth has come out with a kind of bridge and using a false(假的)tooth cost a lot of money.

阅读短文，并根据短文内容将句子补充完整：

1.Your first twenty teeth begin to grow about______.

2.Two kinds of food that are good for your teeth; they are______.

3.As well as brushing teeth, you should use______.

4.You should visit a dentist every______.

5.How many sets of teeth does every person have?______

 

Answer 1

答案：
解析：

1.six months old；The first set of twenty begins to grow when you are over six months old. 根据这句回答。 2.milk and vegetables；To help your teeth grow strong, you must drink plenty of milk and eat green vegetables.根据这句回答。 3.some dental floss；Use dental floss(清牙齿用的牙线)to make sure all food is removed(移走)from in between each tooth.根据这句回答。 4.six months；Try to visit a dentist(牙医)every six months.根据这句回答。 5.Two sets；Every person has two sets(副)of teeth.根据这句回答。

提示：

1.six months old 2.milk and vegetables 3.some dental floss 4.six months 5.Two sets