What is the strongest part of your body? Your head? Bones? It’s your teeth! There is a special thing called enamel (牙釉质) in teeth. It is the hardest thing in the human body and keeps bacteria (细菌) away. However, teeth are vulnerable (易受伤害的) to problems and disease. September 20 is National Teeth-loving Day in China. Let’s pay attention to the health of our teeth.
Tooth     (1)   are    (1)   around the world. Most children and young adults have tooth decay (龋齿). A study published on China Health Monthly magazine this year showed that 40.74 percent of a sample (抽样) of 1,306 Chinese students under age 15 had decayed teeth.
(2)Food that is rich in sugar increases the risk of tooth decay. After you eat, bacteria go crazy over the sugar on your teeth, like ants at a picnic. The bacteria turn sugar into acids (酸) that eat away at tooth enamel.This cause holes in your teeth.
Another common problem is crooked teeth (龅牙). When your new teeth begin to grow and the old teeth haven’t fallen out, there isn’t enough space for the new ones. This causes crooked teeth.
Don’t worry. Here are some ways to keep your teeth healthy.
Brush at least twice a day – in the morning and before bedtime.
Learn to use dental floss (牙线). The floss gets rid of food that’s hidden where your toothbrush can’t get it.
Visit a dentist. He or she can check if you have any dental problems and help you clean your teeth.
Pay attention to what you eat. It is better to eat lots of fruits and vegetables instead of fries and drink water instead of soda.
Wear braces (牙套) to make your teeth straight and beautiful.

【小题1】在（1）处的空白处分别填入一个适当的词使句意完整、上下文通顺。
【小题2】将（2）句译成中文。
【小题3】 回答问题：How many ways to keep your teeth healthy are mentioned in the passage?
【小题4】在文中找出与 Most kids and young people have decayed teeth.意思相同或相近的句子，并将它写在答题卡上。
【小题5】 在文中找出最能表达该短文主题的句子，并将它写在答题卡上。

根据句意、汉语或首字母提示写出单词。

1．What a sunny day! There isn't a cloud in the _________（天空）．

2．--Who are you _________（等待）for?

--Andy．He is expected to come here at 3 o'clock．But he hasn't come yet．

3．_________（幸好），I caught the early bus and got to the railway station Just in time．

4．There are several ways to solve this problem．Let's have a _________（讨论）now．

5．Of the two coats，I'll choose the _________（便宜）one to save some money for a book．

6．We can _________（容易地）forgive a child who is afraid of the dark，but we can’t forgive an adult who is afraid of the light．

7．I fully _________（赞同）with you that it is not too late to act now．

8．Yuan Longping is called “Father” of Hybrid rice，and his achievements go _________（超过）China．

9．--It's a good h_________ to keep a diary every day．

--That's right．I believe it can help us improve our writing．

10．Yancheng Science and Technology Museum，opened in May，is a wonderful place for children．It is well w_________ visiting．

11．The living conditions are improving．Now more and more people can a________ to buy ears．

12．Our English teacher treats everyone equally．He is a f_________ person．

13．--Look! The boy is running so fast!

--It's hard to i_________ that his right leg was once broken．

14．You won't pass the driving test u_________ you practise more．

15．New China was founded in 1940 and this year will be her s_________ birthday．