Question

What is the strongest part of your body? Your head? Bones? It’s your teeth! There is a special thing called enamel (牙釉質) in teeth. It is the hardest thing in the human body and keeps bacteria (細菌) away. However, teeth are vulnerable (易受傷害的) to problems and disease. September 20 is National Teeth-loving Day in China. Let’s pay attention to the health of our teeth.

Teeth problems are common around the world. Most children and young adults have tooth decay (齲齒). A study published on China Health Monthly magazine this year showed that 40.74 percent of a sample (抽樣) of 1,306 Chinese students under age 15 had decayed teeth.

(1)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 ______ ______(2) is crooked teeth (齙牙). 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 (牙線). 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): it can make your teeth straight and beautiful.

1.將（1）句譯成中文。

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2.在（2）處的空白處分別填入一個適當的詞使句意完整、上下文通順。

______________ _____________

3.回答問題：How many ways to keep your teeth healthy are mentioned in the passage?

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4.在文中找出與 Most kids and young people have decayed teeth.意思相同或相近的句子。

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5.在文中找出最能表達該短文主題的句子。

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Answer 1

1.含大量（豐富）糖分的食物增加了患齲齒的機會。

2.common, problem

3.5

4.Most children and young adults have tooth decay,

5.Let’s pay attention to the health of our teeth.

【解析】

試題分析：這篇短文講述的是牙齒出現的問題以及形成原因等，并提出了5種保持牙齒健康的方法：一天至少刷兩次牙；用牙線；看牙醫；注意尺度東西；帶牙套等。

1.含大量（豐富）糖分的食物增加了患齲齒的機會。

2.common, problem

3.句意：短文里提到了多少種保持牙齒健康的方法？5種。據Brush at least twice a day一天至少刷兩次牙... Wear braces (牙套)帶牙套，可知答案。

4.Most children and young adults have tooth decay,

5.Let’s pay attention to the health of our teeth.

考點：任務型閱讀。