雅思A类小作文范文

雅思A类小作文范文

写作是雅思考中重要的组成部分，平时的练习对写作提高很有帮助，所以今天小编为大带来雅思a类小作文范文一篇，来供各位正在准备雅思考的考生们参阅。

题目：

Eating sweet foods produces acid in the mouth, which can cause tooth decay. (High acid levels are measured by low pH values)

Describe the information below and discuss the implications for dental health.

You should write at least 150 words.

Allow yourself 20 minutes for this task.

model answer:

Anyone who has visited a dentist has been told that eating excessive amounts of sweets risks harming the teeth. This is because sweets lower pH levels in the mouth to dangerous levels.

When the pH level in the mouth is kept above 5.5, acidity is such that teeth are unlikely to be in danger of decay. Sweet foods, however, cause pH in the mouth to drop for a time, and the longer pH levels remain below 5.5, the greater the opportunity for decay to occur.

By comparing fruit sugar, cane sugar and honey, which are all common ingredients of sweet foods, we find that cane sugar lowers pH levels for the longest period, thus producing the greatest risk of the three. Approximately five minutes aftfter consuming cane sugar, pH levels drop to as little as pH 3.5. They then begin to rise slowly, but do not rise above pH 5.5 until at least 30 minutes have elapsed. By contrast, fruit sugar, which causes the mouth's acidity to fall to just above pH 4, poses a danger for a shorter period: tooth decay is unlikely 20 minutes after consumption. Honey appears an even less risky substance. Though acidity falls to about pH 4.75 within five minutes of consumption, it returns to above pH 5.5 in under fifteen minutes.

The implications, then, are that people who insist on eating sweet foods should be aware of the ingredients, and that fruit sugar or honey appear preferable to cane sugar.

以上就是今天小编为大带来的一篇雅思A类小作文的写作范文了，希望能为大提供帮助，建议大在进行小作文的写作的时候一定要先进行题目的审阅，审题正确是写好A类小作文的关键之处，之后要注意对图中的信息进行准确详细的描述，不要出现丢落信息，错误描述信息等基本性的错误，在此提醒考生们，必须要全面正确地理解好题意，才能循题目的思路展开中肯的议论，否则南辕北辙，文不对题，顾左右而言他，必然失分。后，衷心祝愿大的雅思写作取得！