A．anxious B．hopeless

C．unclear D．optimistic

解析：观点态度题。根据最后一段的"Organic agriculture is surely better in the long term."可知作者对有机农业的未来充满信心。

27．The writer wrote this passage to tell us __D__

A．the development of agriculture

B．what kind of food is being grown at present

C．why organic farming is so popular around the world

D．what organic farming is and its advantages and disadvantages

解析：主旨大意题。通读全文，可知作者主要告诉了我们什么是有机农业以及其优缺点。

If you want to disturb the car industry，you'd better have a few billion dollars：Mom－and－pop carmakers are unlikely to beat the biggest car companies. But in agriculture，small farmers can get the best of the major players. By connecting directly with customers，and by responding quickly to changes in the markets as well as in the ecosystems (生态系统)，small farmers can keep one step ahead of the big guys. As the co－founder of the National Young Farmers Coalition (NYFC，美国青年农会) and a family farmer myself，I have a front－row seat to the innovations among small farmers that are transforming the industry.

For example，take the Quick Cut Greens Harvester，a tool developed just a couple of years ago by a young farmer，Jonathan Dysinger，in Tennessee，with a small loan from a local Slow Money group. It enables small－scale farmers to harvest 175 pounds of green vegetables per hour-a huge improvement over harvesting just a few dozen pounds by hand-suddenly making it possible for the little guys to compete with large farms of California. Before the tool came out，small farmers couldn't touch the price per pound offered by California farms. But now，with the combination of a better price point and a generally fresher product，they can stay in business.

The sustainable success of small farmers，though，won't happen without fundamental changes to the industry. One crucial factor is secure access to land. Competition from investors，developers，and established large farmers makes owning one's own land unattainable for many new farmers. From 2004 to 2013，agricultural land values doubled，and they continue to rise in many regions.

Another challenge for more than a million of the most qualified farm workers and managers is a non－existent path to citizenship-the greatest barrier to building a farm of their own. With farmers over the age of 65 outnumbering (多于) farmers younger than 35 by six to one，and with two－thirds of the nation's farmland in need of a new farmer，we must clear the path for talented people willing to grow the nation's food.

There are solutions that could light a path toward a more sustainable and fair farm economy，but farmers can't clumsily put them together before us. We at the NYFC need broad support as we urge Congress to increase farmland conservation，as we push for immigration reform，and as we seek policies that will ensure the success of a diverse and ambitious next generation of farmers from all backgrounds. With a new farm bill to be debated in Congress，consumers must take a stand with young farmers.