As a result of the continuing decline in the birth rate, fewer people will enter the labor force in the 1980’s than did in the 1960’s and 1970’s, a twenty-year period during which people born after the war swelled the ranks of workers.
A study commissioned by the Department of Agriculture showed that if calves exercise and associate with other calves, they require less medication and gain weight more quickly than those raised in confinement.
若raised in confinement换为时间状语，则可以没有those,原则和前面一样，即，总结：
******In addition to having more protein than wheat does（与******句比较，does到底放哪，有没有倒装）, rice has protein of higher quality than that in wheat, with more of the amino acids essential to the human diet.
Domestic automobile manufacturers have invested millions of dollars in research to develop cars even more gasoline-efficient than those at present on the road.
In his eagerness to find a city worthy of Priam, the German archaeologist Schliemann cut through Troy and uncovered a civilization a thousand years more ancient than the city known to Homer’s heroes.
The man was always aware, sometimes proudly and sometimes resentfully, that he was a small-town Midwesterner thrust into a world dominated by wealthier, better-educated, and more polished people than he.
Bihar is India’s state, with an annual per capita income of $111 lower than that of the most impoverished countries of the world.
Florida will gain another quarter-million jobs this year alone, many of them in such high-paying fields as electronics and banking, making the state’s economy far more diversified than it was ten years ago.
例如：The economy of Florida is more diversified than it was ten years ago
那么？？
The gyrfalcon, an Arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than（it was） when the use of DDT was sharply restricted in the early 1970's.
大全10 A large rise in the number of housing starts in the coming year should boost new construction dollarsby several billion dollars, making the construction industry’s economic health much more robust than five years ago.
(A) making the construction industry’s economic health much more robust than five years ago
(C) making the construction industry’s economic health much more robust than it was five years ago
答案是c
og251. The gyrfalcon, an Arctic bird of prey, has survived a close brush with extinction; its numbers are now five times greater than when the use of DDT was sharply restricted in the early 1970's. .
(A) extinction; its numbers are now five times greater than
(B) extinction; its numbers are now five times more than
(C) extinction, their numbers now fivefold what they were
答案是a
Florida will gain another quarter-million jobs this year alone, many of them in such high-paying fields as electronics and banking,making the state’s economy far more diversified than it was ten years ago.
Although Napoleon’s army entered Russia with far more supplies than （those因为没有限定成分，于是可以省略，是宾语，这里不是主谓比较，于是不需要补助动词）for any previous campaign, it had provisions for only twenty-four days.
Once positioned in space, the Hubble Space Telescope will capture light from source twenty times fainter than those（由于有限定成分于是不能省略those，这里是宾语含义补充上的比较，于是不需要补助词） that can be detected by ground-based instruments.
Even though Bela Bartok’s music has proved less popular than Igor Stravinsky’s and less influential than Arnold Schonberg’s, it is no less important.
Several studies have found that the coronary patients who exercise most actively are at least fifty percent less likely than those who are sedentary to die of a heart attack.
In 1982 the median income for married-couple families with a wage-earning wife was $9,000 more than that for families in which only the husband was employed.
即总结：主+比较级+adj，一定有that/those或主语,不需要助动词.
Aging is a property of all animals that reach a fixed size at maturity, and the variations in life spans among different species are far greater than those among individuals of the same species: a fruit fly is ancient at 40 days, a mouse at 3 years, a horse at 30, a man at 100, and some tortoises at 150.
可以看出，介词也是一种对主语进行限定的成分，所以必须有that/those。
Nowhere in Prakta is the influence of modern European architecture more apparent than in its government buildings.（倒装句，此句需查）
这个less likely并没有把less likely to do结构发挥出来，所以就当一般的n+adj用了
Several studies have found that the coronary patients who exercise most actively are at least fifty percent less likely than those who are sedentary to die of a heart attack.
The human growth hormone, made by the pituitary gland, is secreted in higher concentrations during sleep than（is secreted in concentration） during waking hours.
此句不是”n+比较级+adj”而是“n+adj+延伸，延伸含比较级”
St. John’s , Newfoundland, lies on the same latitude as Paris, France, but in spring St. John’s residents are less likely to be sitting at outdoor cafes than to be bracing themselves against arctic chills, shoveling snow, or seeking shelter from a raging northeast storm.
The investor who is uncertain about the future is more likely to put money into blue-chip stocks or treasury bills than (to put money) into gold.
According to a recent study, the elderly in the United States are four times more likely to give regular finacial aid to their children than to receive it from them.
下面两句在n+adj的形式里已经出现过
The investor who is uncertain about the future is more likely to put money into blue-chip stocks or treasury bills than (“to put money”被省略了) into gold.
（二） 整句比较
In Japan elderly people are treated with far greater respect than they are（treated） in most Western countries.
我感觉这个句子问题出在语序上面，即像楼上说的In Japan 在句首，则做整句的状语，与我们通常见到的比较不同，这里的比较不满足平行的基本要求。
出于这个原因，如果单单把句子写成
In Japan elderly people are treated with far greater respect than in most Western countries.
那么按照OG的说法，则是这个句子than前后不平行
所以一定要把主谓完整的写出来。
For many travelers, charter vacations often turn out to cost considerably more than they originally seemed.
Holland spends a larger percentage of its gross national product on defending its coasts from rising seas than the United States does on military defense.句子比较
Two new studies indicate that many people become obese more because their bodies burn calories too slowly than because they eat too much.
Dr. Hakuta’s research among Hispanic children in the United States indicates that the more the children use both Spanish and English, the greater their intellectual advantage in skills underlying reading ability and nonverbal logic. (B-p106-7)
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发表于 2009-2-11 04:48:00
