假定你是李华，目前食品安全问题引起了人们的广泛关注。一些生产厂家为了降低成本、追求利润，减少了必要的安全措施，致使一些劣质食品流入市场，对人们的健康产生了极大的危害。请你就此事给一家英文报社写封信，谈谈个人看法并呼吁整个社会关注此事。
注意：
1.词数100左右；
2.可以适当增加细节，以使行文连贯。

【考点】主题式．

【答案】Dear Sir，
I' m writing to talk about the problems of food safety nowadays. In order to reduce the cost and make more profits， some food companies don't take necessary safety measures to guarantee the food quality. As a result， more and more low-quality food flows into the market， doing a lot of harm to consumers' health.
In my opinion， food is essential to human beings. We can not live without proper food. If no notice were taken of food safety， the health of the whole nation would suffer. So I call on the whole society to take action and put an end to the low-quality food. Only in this way can we live a healthier life.
Yours truly，
Li Hua