一、冠词的应用

大致规律：

1.复数前面一般不加定冠词，除非后面跟定语从句(或其缩略式)进行限定 (you accept that overweight and obesity are forms of malnutrition as well; it's that it might be easier to make the changes required to fix the problems created by industrial agriculture than those created by inequality);

2. 明确特指对象一般要加定冠词(debunking the idea that we need to grow more food on a large scale so we can \nine billion”- the anticipated global population by 2050);

3. \” 前的单数名词一般要加定冠词，固定词组除外(Since the start of the recession, the number of Americans who have moved each year has fallen sharply for a host of reasons);

4.同位语进行解释说明时一般要加不定冠词 (by Redfin, a national real estate brokerage firm);

5.单数名词前有形容词，一般需要添加不定冠词(The country's fastest-growing cities are now those where housing is more affordable

than average, a decisive reversal from the early years of the millennium);

6.定语从句(包括“doing和done\的从句缩略形式)的先行词前一般都要添加定冠词(There is also the virtually unregulated food system that is geared toward making money rather than feeding people);

7.如果实在搞不清楚，不妨将其翻译为中文，看看丁灭工、加什么更符合汉语习惯，也不失为一种实际应用技巧。

练习(以下空白处有些需要填写冠词a或者the,有些则不需要冠词)

When young college graduates decide where to move, they are not just looking at 1 usual suspects, like New York, Washington and San Francisco. Other cities are increasing their share of these valuable residents at 2 even higher rate and have reached 3 high overall percentage, led by Denver, San Diego, Nashville, Salt Lake City and Portland, Ore., according to 4 report published Monday by City Observatory, 5 new think tank. And as young people continue to spurn 6 suburbs for urban living, more of them are moving to 7 very heart of cities — even in 8 economically troubled places like Buffalo and Cleveland. The number of college-educated people age 25 to 34 living within three miles of city centers has surged, up 37 percent since 2000, even as the total population of these neighborhoods has slightly shrunk. Some cities are attracting young talent while their overall population falls, like Pittsburgh and New Orleans. And in 9 reversal, others that used to be magnets, like Atlanta and Charlotte, are struggling to attract them at the same rate. Even as Americans over all have become less likely to move, 10 young, college-educated people continue to move at 11 high clip — about a million cross 12 state lines each year, and these so-called young and the restless don?t tend to settle down until their mid-30s. Where they end up provides 13 map of 14 cities that have 15 chance to be 16 economic powerhouses of the future. “There is 17 very strong track record of places that attract talent becoming 18 places of long-term success,” said Edward Glaeser, 19 economist at Harvard and 20 author of “Triumph of the City.” “The most successful economic development policy is to attract and retain smart people and then get out of their way.” About 25 percent more young college graduates live in major metropolitan areas today than in 2000, which is double 21 percentage increase in cities? total population. All 22 51 biggest metros except Detroit