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  3. 共用题干 More Rural Research is NeededAgric

共用题干 More Rural Research is NeededAgric

练习题库2022-08-02  28
问题 共用题干More Rural Research is Needed
Agricultural research funding is vital if the world is to feed itself better than it does now. Dr. Tony Fischer,crop scientist,said demand was growing at 2 .5%per year but with modern tech-nologies and the development of new ones,the world should be able to stay ahead.
“The global decline in investment in international agricultural research must be reversed if significant progress is to be made towards reducing malnutrition（营养不良）and poverty.” he said.
Research is needed to solve food production,land degradation（贫瘠化）and environmental problems. Secure local food supplies led to economic growth which in turn,slowed population growth .Dr. Fischer painted a picture of the world's ability to feed itself in the first 25 years, when the world's population is expected to rise from 5 .8 to 8 billion people.He said that things will probably hold or improve but there'll still be a lot of hungry people.The biggest concentration of poor and hungry people would be in sub-Saharan Africa and southern Asia in 2020,similar to the current pattern. if there is any change,a slight improvement will be seen in southern Asia, but not in sub-Saharan Africa. The major improvement will be in East Asia,South America and South-East Asia.
The developing world was investing about 0 .5%,or$8 billion a year,of its agricultural gross domestic product(GDP)on research and developed world was spending 2 .5%of its GDP. Dr. Fischer said more was needed from all countries.
He said crop research could produce technologies that spread across many countries,such as wheat production research having spin-offs（有用的副产品）for Mexico, China or India.
“Technologies still need to be refined for the local conditions but a lot of the strategic re- search can have global application,so that money can be used very efficiently.”Dr. Fischer said.
Yields of rice, wheat ad maize（玉米）have grown impressively in the past 30 years, espe- cially in developing countries.For example,maize production rose from 2 to 8 tones per hectare between 1950 and 1995.But technologies driving this growth such as high-yield varieties,fertiliz-ers,and irrigation,were becoming exhausted.“If you want to save the land for non-agricultural activities,for forests and wildlife,you're going to have to increase yield.”Dr. Fischer said.A:there is a demand for saving land for non-agricultural activitiesB: crop production is growing faster in developing countriesC: maize production reached its peak in the 1990sD: technologies improving maize production have been well developed
选项 A:there is a demand for saving land for non-agricultural activities
B: crop production is growing faster in developing countries
C: maize production reached its peak in the 1990s
D: technologies improving maize production have been well developed
答案 A
解析 主旨大意题。首段提到如果世界人民想要吃的更好，农业研究基金的投入至关重要。也就是说，农业研究至关重要。接下来几段也都是在讲述农业研究对粮食生产等方面的重要性。因此本文主旨是农业研究的重要性。故本题选C。


根据第二段“The global decline in investment in international agricultural research must be reversed if…”可知，世界农业研究资金的投入都在下降。故选B。


文章第三段“The  major improvement will be in East Asia…”提到，主要改善地区将是东亚等地。也就是说，在第一个25年，东亚的饥俄人口将会减少。故本题选D。


根据文章倒数第二段“Technologies still need to be refined for the local conditions. ”可知，技术仍然需要因地制宜进行改进。故本题选B。


根据最后一段费舍博士的话可以推断，人类需要腾出土地作为非农业用途。选项 B在最后一段已经明确提出，C、D项是无中生有。因此本题选A。
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