Do you love cheese? If you do, this new survey will make you happy. According to the survey, cheese is good for teeth and can protect people from getting cavities (蛀牙) . The survey is made by a group of scientists from the Academy of General Dentistry, an organization from the USA. The scientists find that eating cheese can make the mouth’s PH rise. And the higher the mouth’s PH is, the less likely it is that a person gets cavities. That’s why cheese is good for tooth health.
In order to do the survey, the scientists invited 68 children between 12-15 years old to join the test. They tested the mouth’s PH of the children at first. Then they divided the children into three groups. One group of children ate some cheese, another group of children ate sugar-free yoghurt and the last group of children drank a glass of milk. After that, the scientists tested the mouth’s PH of all the children for several times.
The scientists found that the mouth’s PH of the last two groups of children didn’t change, but the mouth’s PH of children from the first group rose greatly. Besides, the scientists also found that cheese could create a protective layer (保護(hù)層) on teeth. The layer could protect the teeth from getting hurt by many bad things.
Information Card
The thing that is good for teeth
小題1:___________________
The people who did the survey
小題2:___________________
The people who joined the test
小題3:__________________
The thing that the scientists test
小題4:___________________
The thing that the protective layer can do
小題5:___________________

小題1:Cheese
小題2:A group of scientists
小題3:children
小題4:The mouth’s PH
小題5:Protecting the teeth from getting hurt

試題分析：這篇短文主要講述健康保健問題，文章介紹，科學(xué)家通過實(shí)驗(yàn)發(fā)現(xiàn)食用奶油可以對(duì)牙齒形成保護(hù)層，從而保護(hù)牙齒、防止蛀牙。
小題1:細(xì)節(jié)理解題。根據(jù)短文According to the survey, cheese is good for teeth and can protect people from getting cavities (蛀牙) 的描述可知，奶油對(duì)牙齒有好處。故填Cheese。
小題2:細(xì)節(jié)理解題。根據(jù)短文The survey is made by a group of scientists from the Academy of General Dentistry, an organization from the USA的描述可知，是美國的科學(xué)家做的這項(xiàng)調(diào)查。故可填A(yù) group of scientists。
小題3:細(xì)節(jié)理解題。根據(jù)短文In order to do the survey, the scientists invited 68 children between 12-15 years old to join the test的描述可知，是一群孩子參加了這項(xiàng)測(cè)試。故可填Children。
小題4:細(xì)節(jié)理解題。根據(jù)短文the scientists tested the mouth’s PH of all the children for several times的描述可知，科學(xué)家測(cè)試的是孩子口腔的PH值。故應(yīng)填The mouth’s PH。
小題5:細(xì)節(jié)理解題。根據(jù)短文the layer could protect the teeth from getting hurt by many bad things的描述可知，保護(hù)層可以防止牙齒受到傷害。故可填Protecting the teeth from getting hurt。
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