请教PREP-P2-45,49,50题,谢谢G友

45.   (26816-!-item-!-188;#058&003335)

A recent poll indicates that many people in the United States hold a combination of conservative and liberal political views; i.e., they denounce big government, saying government is doing too much and has become too powerful, while at the same time supporting many specific government programs for health care, education, and the environment.

(A) they denounce big government, saying government is doing too much and has become too powerful, while at the same time supporting

(B) they denounce big government--they say that government is doing too much and has become too powerful--but supporting at the same time

(C) they denounce big government, they say that government is doing too much and it has become too powerful, while they support at the same time

(D) while they denounce big government, saying that government is doing too much and has become too powerful, at the same time supporting

(E) while they are denouncing big government--they say that government is doing too much and it has become too powerful-- supporting at the same time

 答案:A ,  B错在哪里呢?是不是因为原句没有强烈语气,在选项中不应该出现呢?

Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture to 1950.

(A) Since 1990 the global economy has grown more than it did during the 10,000 years from the beginning of agriculture

(B) Since 1990 the growth of the global economy has been more than that during 10,000 years, from when agriculture began

(C) The growth of the global economy since 1990 exceeds that which had been for 10,000 years from the beginning of agriculture

(D) The growth of the global economy since 1990 exceeds what it has been for 10,000 years, from when agriculture began

(E) The growth of the global economy since 1990 exceeds what it did for the 10,000 years from the beginning of agriculture

答案:A,我选择的是D,这个不是很明白,还请哪位同学帮我分析下,谢谢

50.   (27142-!-item-!-188;#058&003455)

With no natural predators and expanses of green suburban neighborhoods that allow no hunting, wildlife officials estimate the New Jersey deer population to have grown to exceed 175,000.

(A) With no natural predators and expanses of green suburban neighborhoods that allow no hunting, wildlife officials estimate the New Jersey deer population to have

(B) With no natural predators and with expanses of green suburban neighborhoods that do not allow hunting, wildlife officials' estimate of the deer population in New Jersey has

(C) With no natural predators and with expanses of green suburban neighborhoods where there is no hunting, the deer population in New Jersey, wildlife officials estimate, has

(D) Without natural predators and no hunting allowed in expanses of green suburban neighborhoods, New Jersey has a deer population that wildlife officials estimate to have

(E) Without natural predators and with expanses of green suburban neighborhoods where there is no hunting, wildlife officials in New Jersey estimate a deer population that has

答案:C,这个不是很明白.....请指教下

54.   (27326-!-item-!-188;#058&003502)

Greatly influenced by the Protestant missionary Samuel Kirkland, the Oneida was the only one of the five-nation Iroquois League who sided with the colonists during the American Revolution.

(A) was the only one of the five-nation Iroquois League who sided

(B) was alone of the five-nation Iroquois League when they sided

(C) alone among the five nations of the Iroquois League sided

(D) were the only ones out of the five nations of the Iroquois League in siding

(E) only of the five-nation Iroquois League had sided

答案:C...这里有个问题,原句中有ONLY这样的强语气词,不是应该保持么?C中并没有啊?

58.If current trends continue, by the year 2010 carbon emissions in the United States will soar to a level more than one-third higher than were those in 1990, according to official projections.

(A) will soar to a level more than one-third higher than were those

(B) will soar to a level more than one-third higher than that

(C) would soar to a level more than one-third higher than it was

(D) would soar to a level more than one-third higher than those

(E) would soar to a level more than one-third higher than they were

答案:B  有个疑问,这里的主语是carbon emissions ,为什么要用that来表示呢?