内容正文:
微阶段刷题过关卷(九)
(时间:65分钟 分值:70分)
UNIT 5 WORKING THE LAND
Reading and Thinking, Learning About Language & Using Language (1)
第Ⅰ卷(满分32.5分)
Ⅰ. 阅读理解(共8小题;每小题2.5分,满分20分)
A
Organic food is no healthier than ordinary food, a large independent review has concluded. More than 50 studies were included in the review. There is little difference in nutritional value and no evidence of any extra health benefits from eating organic produce, UK researchers found.
The Food Standards Agency(FSA)who commissioned (委托) the report said the findings would help people make an “informed choice”. But the Soil Association criticised the study and called for better research.
Researchers from the London School of Hygiene and Tropical Medicine looked at all the evidence on nutrition and health benefits from the past 50 years. Among the 55 of 162 studies that were included in the final analysis, there were a small number of differences in nutrition between organic and ordinarily produced food but not large enough to be of any public health relevance, said the study leader Dr Alan Dangour.
Overall the report found no differences in most nutrients in organically or ordinarily grown crops, including in vitamin C, calcium and iron. The same was true for studies looking at meat, dairy and eggs. Differences that were discovered, for example in levels of nitrogen (氮) and phosphorus (磷), were most likely to be due to differences in fertilizer use and ripeness at harvest and were unlikely to provide any health benefit, the report concluded.
Gill Fine, a FSA director, said, “This study does not mean that people should not eat organic food. What it shows is that there is little, if any, nutritional difference between organic and ordinary food and that there is no evidence of additional health benefits from eating organic food.” She added that the FSA was neither pro nor anti organic food and recognised there were many reasons why people chose to eat organic, including animal welfare or environmental concerns.