Question

    Organic food, grown without artificial chemicals, is increasingly popular nowadays. Consumers have been willing to pay up to twice as much for goods with organic labels. However, if you think paying a little more for organic food gets you a more nutritious and safer product, then you'd better save your money. A study led by researchers at Stanford University says that organic products aren't necessarily more nutritious, and they're no less likely to suffer from disease-causing bacteria, either.

For their new study, Smith-Spangler and her colleagues conducted a review of two categories of research,  including 17 studies that compared health outcomes between consumers of organic against traditional food products, and 223 studies that analyzed the nutritional content of the foods, including key vitamins, minerals and fats.

While the researchers found little difference in nutritional content, they did find that organic fruit and vegetables were 20% less likely to have chemicals remaining on the surfaces. Neither organic nor traditional foods showed levels of chemicals high enough to go beyond food safety standards. And both organic and traditional meats, such as chicken and pork, were equally likely to be harmed by bacteria at very low rates. The researchers did find that organic milk and chicken contained higher levels of omega-3 fatty acids, a healthy fat also found in fish that can reduce the risk of heart disease. However, these nutritional differences were too small, and the researchers were unwilling to make much of them until further studies confirm the trends.

Organic food is produced with fewer chemicals and more natural-growing practices, but that doesn't always translate into a more nutritious or healthier product. The U. S. Department of Agriculture(USDA) states that “whether you buy organic or not, finding the freshest foods available may have the biggest effect on taste.” Fresh food is at least as good as anything marketed as organic.

1.What does the underlined sentence in the first paragraph mean? ______

A.Organic food helps you save money. B.Organic food contains much more nutrients.

C.Organic food is worth the high price. D.Organic food is not always nutritious.

2.Smith-Spangler and her colleagues found that ______ ．

A.organic food could reduce the risk of heart disease

B.traditional food was grown with more natural methods

C.both organic and traditional food they examined were safe

D.there was not a presence of any forms of bacteria in organic food

3.Which of the following is relatively healthier according to the passage?

A.Organic chicken and pork B.Organic milk and chicken

C.Traditional chicken and pork D.Traditional fruit and vegetables

4.What is the author's attitude toward organic food？ ______

A.Doubtful B.Unconcerned C.Positive D.Supportive

Answer

1.D

2.C

3.B

4.A

【解析】

本文为说明文。作者由人们花很多钱去购买有机食品入题，提出有机食品并不是真的比传统食品更好。并引用专家的调查结果证实有机食品并未比传统食品有更好的营养成分。

1.

句意猜测题。根据上文Organic food, grown without artificial chemicals, is increasingly popular nowadays. Consumers have been willing to pay up to twice as much for goods with organic labels.可知如今，不使用人工化学物质的有机食品越来越受欢迎。消费者愿意花两倍的钱购买带有有机标签的商品。However表示转折，可知下文的内容与之相反，由此可知，划线部分表达的意思就是这种有机产品并不一定就是更有营养，值得花两倍的钱。故D项“有机食品并不总是有营养的”符合题意，故选D。

2.

细节理解题。根据第三段中While the researchers found little difference in nutritional content, they did find that organic fruit and vegetables were 20% less likely to have chemicals remaining on the surfaces. Neither organic nor traditional foods showed levels of chemicals high enough to go beyond food safety standards.可知虽然研究人员发现有机水果和蔬菜的营养成分几乎没有差别，但他们确实发现有机水果和蔬菜表面残留化学物质的可能性降低了20%。有机食品和传统食品的化学成分含量都没有高到超出食品安全标准。由此可知，Smith-Spangler和她的同事发现他们检测的有机和传统食品都是安全的。故选C。

3.

细节理解题。根据第三段中The researchers did find that organic milk and chicken contained higher levels of omega-3 fatty acids, a healthy fat also found in fish that can reduce the risk of heart disease.可知研究人员确实发现，有机牛奶和鸡肉中omega-3脂肪酸的含量较高。omega-3脂肪酸是一种健康脂肪，也存在于鱼类中，可以降低患心脏病的风险。由此可知，有机牛奶和鸡肉相对更健康。故选B。

4.

推理判断题。根据第一段中However, if you think paying a little more for organic food gets you a more nutritious and safer product, then you'd better save your money.可知然而，如果你认为花更多的钱买有机食品可以让你得到更有营养和更安全的产品，那么你最好节约你的钱。以及最后一段中The U. S. Department of Agriculture(USDA) states that “whether you buy organic or not, finding the freshest foods available may have the biggest effect on taste.” Fresh food is at least as good as anything marketed as organic.可知美国农业部(USDA)表示，“无论你买不买有机食品，找到最新鲜的食物可能对味道影响最大。”新鲜食品至少和任何被标榜为有机食品的东西一样好。由此可推知，作者在第一段提出人们不值得花过多的钱去买有机食品，作者认为有机食品并不总是转化为更有营养或更健康的产品。并用美国农业部的观点来证明：新鲜的食品至少与有机食品一样好。可知作者是质疑的态度。故选A。