新年挂饰手工制作
之
2008年12月大学英语六级
真题试题及答案(A卷)
2008年12月大学英语六级真题试题及答案(A卷)
一、阅读理解
无源之水无本之木第1题：
sustainable development is applied to just about eberything from energy to clean water and economic growth,and as a result it has become difficult to question either the basic assumptions behind it or the way the concept is put to u.this is especially true in agriculture,where sustainable development is often taken as the sole measure of progress without a proper appreciation of histrorcal and cultural perspectives.
To start with,it is important to remember that the nature of agriculture has changed markedly throughout history,and will continue to do so .medieval agriculture in northern Europe fed,clothed and shelered a predominantly rural society with a much lower population density than it is today.it had minimal effect on biodiversity,and any pollution it caud was typically localized.in termsof energy u and the nutrients captured in the product it was relatively inefficient.
Contrast this with farming since the start of the petion from overas led farmers to specialize and increa yields.throughout this period food became cheaper,safe and more reliable.however,the changes have alsoled to habitat loss and to diminishing biodiversity.
What’smore,demand for animal products in developing countrics is growing so fast that meeting it will require an extra 300 million tons of grain a year the growth of cities and in dustry is reducing the amount of water available for agriculture in many regions.
李威威
All this means that agriculture in the 21st century will have to be very different from how it was in the 20th.this will require radical thinking.for example,we need to move away from the idea that traditional practices are inevitably more sustainable than new ones.we also need to abandon the notion that agriculture can be “zero impact”. The key will be to abandon the rather simple and static measures of sustainability,which centre on the need to maintain production without increasing damage.instead we need a more dynamic interpretation,one that looks at the pros and cons of all the various way land is ud.there are many different ways to measure agricultural performance besides food yield:energy u, environmental costs,water purity,carbon footprint and biodiversity. It is clear, for example,that the carbon of transporting tomatoes from spain to the UK
Is less than that of producing them in the UK with additional heating and lighting.but we do not know whether lower carbon footprints will always be better for biodiversity.
怎么画国画 What is crucial is recognizing that sustainable agriculture is not just about sustainable food production.
1. How do people ofen measure progress in agriculture?
A) By its productivity C) By its impact on the environmet
顺丰工资待遇
B) By its sustainability D) By its contribution to economic growth
2. Specialisation and the effort to incea yields have esulted in________.
A) Localid pollution C) competition from overas
B) the shrinking of farmland D) the decrea of biodiversity
3.What does the author think of traditional farming practices?
刺五加的功效 A)They have remained the same over the centuries
B)They have not kept pace with population growth
C)They are not necessarily sustainable
D)They are environmentally friendly
醋泡大蒜 4.What will agriculture be like in the 21st century
A) It will go through radical changes
B) It will supply more animal products
C) It will abandon traditional farming practices
D) It will cau zero damage to the environment
5 What is the author’s purpo in writing this passage?
A) To remind people of the need of sustainable development
B) To suggest ways of ensuring sustainable food production
C) To adance new criteria for measuring farming progress
D) To urge people to rethink what sustainable agriculture is
1小题>、【正确答案】：B
进修总结2小题>、【正确答案】：D
3小题>、【正确答案】：C
4小题>、【正确答案】：A
5小题>、【正确答案】：D
【参考解析】：无
第2题：
The percentage of immigrants(including tho unlawfully prent) in the United states has been creeping upward for years. At 12.6 percent, it is now higher than at any point ince the mid1920s
We are not about to go back to the days when Congress openly worried about inferior races polluing America’s bloodstream. But once again we are wondering whether we hav
e too many of the wrong sort fo necomers.Their loudest citecs argue that the new wave of immigrants cannot,and indeed do not want to, fit in as previous generations did.
We now know that the racist views were wrong.In time, Italians, Romanians and members of other so-called inferior races became exemplary Americans and contributed greatly, in ways too numerous to detail , to the building of this magnificent nation. There is no reason why the new immigrants should not have the same success.
Although children of Mexican immigrants do better, in terms of educational and professional attainment, than thir parents UCLA sociologist Edward Telles has found that the gains don’t continme. Indeed, the fouth generation is marginally wor off than the third James Jackson,of the University of Michigan,has foud a simila rend among black Caribbean immigrants,Tells fears that Mexican-Americans may be fated to follow in the footsteps of American blacks-that largeparts of the community may become mired in a emingly state of poverty and Underachievement . Like African-Americans, Mexican-americans are increasingly relegated to (降入)gregated, substandyrd schools, and their dropout rate is the highest for any 儿童会nic group in the country.
