关注我们

As spring arrives, farmers around the world are making decisions about what crops to plant and how t

英语试题 03-10
As spring arrives, farmers around the world are making decisions about what crops to plant and how to manage them. In the U. S., farmers typically have big data to help make these decisions. These data have a clear upside. They make farms more productive. In the U.S., the past five years have seen a series of good harvests for both com and soybean. A big part is generated by effectively using data to produce more food from the same amount of land, seed and fertilizer.
In the poorer parts of the world, however, the picture is much different. Many farmers are guided only by their history with the land and their community's traditions. Their skills and knowledge are impressive, but they suffer from a poverty of data. They rely on technical advisors for advice from governments and academic centers who often have very little knowledge of the local area. For seeds and fertilizers and other materials used in the field, they rely on companies that lack data on how their products will perform in the local conditions.
About 10 years ago, East African officials and their development partners started to explore why so few smallholder dairy farmers made profits from growing demand from urban consumers. Surveys of farmers in the region suggested poor access to veterinary(禽畜的) care and breeding assistance. An effort to provide these services has helped farmers get more milk.
Data would matter little if farming was easy and the paths to productivity were obvious. But in reality, agriculture is a complex mix of many factors, including climate, biology, chemistry, physics, economics and culture—all of which vary from region to region. In this situation, good data is necessary.
12. How has big data benefited American's farmers?
A. By informing the farmers to plant crops earlier. B. By helping make farms more productive.
C. By increasing the amount of land for farming. D. By producing more seeds and fertilizer.
13. What do farmers in poor countries need to improve their farming?
A. Farming skills. B. Technical guidance.
C. Big data. D. Farming materials
14. Why does the writer mention the case of East Africa?
A. To show that East Africa relies heavily on diary farming.
B. To illustrate cooperation between countries was a great success.
C. To serve as an example of how data helps farmers in poor areas.
D. To prove that city people in East Africa didn't like drinking milk.
15. What can we learn from the passage?
A. Many changeable factors have influence on farming.
B. East African dairy farmers were experienced in raising cows.
C. The American farmers can't decide what they will plant.
D. The technical advisors in poor areas know the local areas well.
【答案】
喜欢发布评论
留言与评论(共有 0 条评论)
   
验证码: