题目内容
1．Baby teeth usually fall out because ________.
A．you are too young
B．you are too old
C．their food supply is cut off
2．Your baby teeth begin to fall out ________.
A．before you are six
B．after you are six
C．when you are sixteen
3．A whole new set of teeth is ________.
A．twelve
B．sixteen
C．thirty-two
解析：
1. As a new tooth comes out, it cuts off the food supply to the baby tooth. After a while, the baby teeth fall out. 2. After you are six, your baby teeth begin to fall out. 3. In all, you’ll have 16 teeth in each jaw.
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提示：
When you were six years old, you had 20 teeth in all. These are called baby teeth. After you are six, your baby teeth begin to fall out. They are making way for a new set. As a new tooth comes out, it cuts off the food supply to the baby tooth. After a while, the baby teeth fall out. By the time you are25, you should have a whole new set of teeth. And you’ 11 have 12 extra teeth. In all, you’ll have 16 teeth in each jaw. These teeth will stay in your mouth forever unless they are not well protected.
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There is much more to growing up in a bilingual(双语的) family than learning two languages, and the cultural influences from both cultures are just as important.
In July we had a curious incident that shows the slight differences between cultures. My son has already changed a few of his baby teeth and since we lived in Italy we decided to go with the Italian version(版本) of the Tooth Fairy, which is not a fairy(仙女) but a little mo
use. So last year when he lost his first tooth we had a visit from the little mouse who took the tooth away and left a rather good amount of coins --- when he lost the second tooth a few days later, however, the amount was significantly less! That in itself caused quite a few questions, but the real questions started when in July during a visit to the UK another tooth left my son’s mouth in Tooth Fairy land! The grandparents made a real problem out of it --- it was their first grandson’s tooth they got to say Goodbye to, so it was Tooth Fairy and rather generous, too!
The Qs & As
Son: Mum, how is the little mouse going to smell my tooth all this way? (as the story goes the little mouse smells a milk tooth and comes to collect it)
Me: No dear, it won’t! We are in England now so the Tooth Fairy will come.
Son: Oh, is she stronger than the little mouse? (I knew where this was going)
Me: She is very strong, and she is magic.
Son: What does the Tooth Fairy bring? (straight to the point)
Me: I am not sure. We’ll find out maybe a nice message.
Son: So is the little mouse coming too?
Me: No, it won’t make it all the way from Italy.
Son: But why don’t they have little mice in England?
Me: Because here the Tooth Fairy collects all baby teeth and she’s too fast, so the little mouse would always get there late.
Son: Oh!?
【小题1】Italian kids are supposed to believe ________ will come and collect the milk teeth.
| A．a little mouse |
| B．Tooth Fairy |
| C．their parents |
| D．the grandparents |
| A．Italian parents often give much money for their kids’ lost baby teeth[ |
| B．she knew Tooth Fairy was more generous than the little mouse |
| C．she knew the grandparents would give her son a big gift |
| D．English people are usually more generous than Italians |
| A．the tooth fairy’s health |
| B．the little mouse’s coming |
| C．the amount of coins he could get |
| D．the story his grandparents know |
| A．make kids know the folk stories |
| B．help kids choose one of the cultures |
| C．teach kids two languages |
| D．keep the balance of both cultures |
Bad teeth can be painful -- and worse. They can even be deadly. Infections (感染) of the gums (牙龈) and the teeth can cause bacteria (细菌) to go into the blood system. Those bacteria can increase the chance of a heart attack and worsen the effects of other diseases. And adults are not the only ones at risk.
For example, in 2007, doctors in the Washington area said a boy died when a tooth infection spread to his brain. They said it might have been prevented had he received the dental care (牙齿保健) he needed. He was twelve years old.
Experts at the National Institutes of Health say good dental care starts at birth. Breast milk, they say, is the best food for the healthy development of teeth. Breast milk can help slow the growth of bacteria and acid production in the mouth.
But dentists say a baby's gums and early teeth should be cleaned after each feeding. Use a cloth with a little warm water. Do the same if a baby is fed with a bottle. Experts say if you decide to put your baby to sleep with a bottle, only give the child water.
When baby teeth begin to appear, you can clean them with a wet toothbrush. Dentists say it is important to find soft toothbrushes made especially for babies and to use them very gently.
The use of fluoride (氟化物) to protect teeth is common in many parts of the world. For example, it is often added to drinking water supplies. The fluoride mixes with enamel (珐琅质) , the hard surface on teeth, to help prevent holes from forming.
【小题1】Which of the following can be used as the title of the passage?
| A．Concerns for Healthy Teeth of the Young |
| B．Causes of Teeth Problem |
| C．Importance of Healthy Teeth of All |
| D．Solutions to Teeth Problem |
| A．How to develop babies' teeth. | B．How to keep babies' teeth clean |
| C．Why to protect babies' teeth | D．Why to keep babies' teeth clean |
| A．Enamel is most widely used to protect teeth in the world |
| B．Breast milk can cure babies' bad teeth |
| C．Bad teeth may affect the health of adults and the young |
| D．Babies' teeth should be brushed once per day |
| A．not only adults but the young may suffer from teeth problem |
| B．the doctors should be responsible for the case |
| C．babies with bad teeth can easily die |
| D．the boy was not fed with his breast milk |