The Greenbelt, a wide belt of open land around the cities and towns of the San Francisco Bay Area, includes about 3.75 million of the Bay Area’s 4.5 million acres. The Bay Area Greenbelt is one of the largest areas of open land in any U.S. urban area. Open land is land that has few buildings and lots of natural areas. The Greenbelt’s open land includes parks, forests, beaches, and more than 8,500 farms.
What are the advantages of the Greenbelt?
The Greenbelt has many advantages for people in the Bay Area, which include:
l walking and biking areas close to the cities and towns;
l places for wild plants and animals;
l cleaner air and water;
l income from farms.
Is the Greenbelt in danger?
Five hundred seventy thousand acres of the Greenbelt are in danger. There are builders who want to build suburbs on them. If those acres become suburbs, many things will change:
l the urban and suburban area will almost double;
l many farms will disappear;
l traffic will become worse;
l the air will become dirtier.
What is Greenbelt Alliance (联盟)?
Greenbelt Alliance, an organization that saves land in the San Francisco Bay Area, works alone and with other groups to save the Greenbelt in four ways:
1. Try to persuade people to build new buildings on land that is already urban, not on open land.
2. Make sure that the city and town governments are all making plans to save the Greenbelt.
3. Help Bay Area towns and cities to buy pieces of open land to make into natural areas.
4. Teach people in the Bay Area why the Greenbelt is important and what they can do to help save it.
小题1:What can we learn about the Greenbelt from the first paragraph?
A．The Greenbelt is the largest open land in the United States.
B．The Greenbelt covers much more than half of the Bay Area.
C．There are few farms on the open land of the Greenbelt.
D．There are more than 8,500 natural areas on the Greenbelt.小题2:One of the advantages of the Greenbelt for people in the Bay Area is __________.
A．convenience for exercise
B．income from sightseeing
C．cleaner city streets
D．more plants and animals小题3:The Greenbelt is in danger because __________.
A．traffic is getting worse
B．some plans to build suburbs on it
C．the suburban area has doubled
D．pollution is becoming serious小题4:Which of the following is TRUE about Greenbelt Alliance?
A．It builds new buildings on open land.
B．It buys large open land for the Bay Area.
C．It educates people how to save the Greenbelt.
D．It helps the city governments make plans.
小题1:B
小题2:A
小题3:B
小题4:C
题目分析：本文叙述了在美国的旧金山周围有一个非常大的绿化带，文中介绍了它的优点人们可以锻炼身体，呼吸新鲜空气等，但是五千零七万亩的绿地正处于危险中，一些人计划在这里盖楼，当然会带来一些问题，这样绿地联盟就开始做工作来阻止这样的事情发生。
小题1:细节理解题。根据includes about 3.75 million of the Bay Area’s 4.5 million acres故选 B。
小题2:细节理解题。根据walking and biking areas close to the cities and towns;可以去锻炼，故选A。
小题3:细节理解题。根据There are builders who want to build suburbs on them.一些人想把它建成郊区，故选B。
小题4:细节理解题。根据works alone and with other groups to save the Greenbelt 和Teach people in the Bay Area why the Greenbelt is important and what they can do to help save it.教育人们如何保护绿化带，故选C。
点评：细节理解题可以分为集中型细节理解题和分散型细节理解题。集中型：就文章的单个细节提问，答案在原文中出现的位置一般也位于单句话或几句话中。因为具体细节不同，出题形式千变万化，因题而异。分散型：题目涉及到文章某一段或几段，甚至贯穿全文的各个位置，需要考生寻找文章中的多个细节。请注意，分散型细节理解题并不意味着题目的正确答案出现在文章的不同位置，正确答案往往也是关于文章的某一个句子或细节。只是说文章的干扰选项是关于不同的细节，需要我们在定位的时候阅读某一个区域。
