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9.Organic(有机的)foods are foods produced according to strict guidelines set forth by the government.These guidelines state that organic foods must be produced without modern man-made processes and materials,such as man-made pesticides (杀虫剂) and chemical fertilizers.
For most history,almost all food was organic.However,during the 20th century,the principles of the Industrial Revolution were applied to agriculture.This led to the development of many man-made processes and products that were believed to improve farming techniques.In other words,sm all farms grew larger as the ideas that were used by factories and big businesses were put into action to grow more food faster.
Over time,the organic movement started to get back to the old,traditional methods of farming.Those in favor of organic food believe that the man-made chemicals and pesticides used in modern farming can be harmful to your health.They also believe that organic foods are naturally more nutritious.
If you go to the grocery store,you will notice that organic foods may be more expensive than non-organic foods.This is partly because of that fact that the government requires organic food producers to obtain special certification(鉴定) for their products.
Is organic food worth the extra co st?Some people believe it is.Despite the lack of scientific findi ngs to support their claims(说法),many people still prefer organic foods.Some people believe they taste better,while others prefer to eat food that has not been grown,made or processed using man-made chemicals.
If you wonder whether you should choose an organic food instead of a non-organic one,the best thing you can do is try for yourself and see which you prefer.Although organic foods were once only available in health food stores,you can find them t oday at most grocery stores.

31.The writer writes the first paragraph in order toB.
A.advise people to live a healthy life
B.tell us the meaning of organic foods
C.explain the government's guidelines
D.show man-made pesticides are harmful
32.What may be the idea that were used to produce more food during the 20th century?D
A.More farmers began to take up farming.
B.Lots of small farms disappeared one by one.
C.Pesticides and fertilizers were used widely.
D.Modern machines were used in farming.
33.Many people would like to eat organic foods probably because organic foodsC.
A.are cheaper than others         B.are sold by the government
C.does good to people's health   D.are easy to buy in every store
34.According to this passage,we'd betterD.
A.choose to buy organic foods    
B.try to eat non-organic foods
C.eat both organic and non-organic foods
D.make a choice depending on our preference
35.Where can we probably find this passage?D
A.In a website on health diet.
B.In a guidebook on shopping.
C.In a textbook on medicine.
D.In a magazine on fashion.

分析 整个文章讲述什么是有机食品,以及不同人的不同态度,最后建议我们在挑选时根据自己的爱好.

解答 BDCDD
31.B 主旨大意题.根据第一段Organic(有机的)foods are foods produced according to strict guidelines set forth by the government可知,主要介绍了有机食品的概念,故答案为B.
32.D 细节题.在第二段这句话during the 20th century,the principles of the Industrial Revolution were applied to agriculture告诉我们在20世纪,工业革命的理念被运营到农业中,即使用现代的机器,故答案为D.
33.C 判断推理题.在第三段They also believe that organic foods are naturally more nutritious.得知,很多人认为有机食品天然有营养,故答案为C.
34.D 细节推理题.最后一段告诉我们the best thing you can do is try for yourself and see which you prefer在选择时要根据自己的喜好来挑选,故答案为D.
35.D 判断推理题.整个文章讲述什么是有机食品,以及不同人的不同态度,最后建议我们在挑选时根据自己的爱好,推出文章节选自时尚健康杂志,故答案为D.

点评 本文考察学生的理解推断能力以及细心程度,只要抓住文章的关键词,采用寻读的方法查找细节,就能找到正确答案

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