GMATPrep破解PText 1 SC （#46，33）可以帮我看看这两道吗？谢谢

cindypalau

46.

The continental United Statesreceives an average of 30 inches of precipitation a year; transpiration fromsoil and from plants returns approximately 21 of the 30 inches to theatmosphere, while the balance of 9 inches contributes to the flow ofstreams and rivers.

(A) transpiration from soil and from plants returnsapproximately 21 of the 30 inches to the atmosphere, while the balance of 9inches contributes to the flow

(B) even though transpiration from soil and fromplants returns approximately 21 of the 30 inches to the atmosphere, theremainder of 9 inches contribute to the flowing

(C) although transpiration from soil and fromplants return approximately 21 of the 30 inches to the atmosphere, the balanceof 9 inches contribute to the flowing

(D) with transpiration from soil and from plantsto return approximately 21 inches to the atmosphere, the rest of the 9 inchescontributes to the flow

(E) as transpiration from soil and from plants returnapproximately 21 of the 30 inches to the atmosphere, the rest of the 9 inchescontribute to the flow

答案是A，我选E。 选A是因为分号后要是完整的句子，而E中的as使得句子前面要补东西。我这里理解对吗？


33.

More than 300 rivers drain intoSiberia's Lake Baikal,which holds 20 percent of the world's fresh water, more than all the NorthAmerican Great Lakes combined.

(A) More than 300 rivers drain into Siberia's Lake Baikal,which holds 20 percent of the world's fresh water, more than all the NorthAmerican Great Lakes combined.

(B) With 20 percent of the world's fresh water, that is morethan all the North American Great Lakes combined, Siberia's Lake Baikal hasmore than 300 rivers that drain into it.

(C) Siberia's Lake Baikal,with more than 300 rivers draining into it, it holds more of the world's freshwater than all that of the North American Great Lakes combined, 20 percent.

(D) While more than 300 rivers drain into it,Siberia's Lake Baikalholds 20 percent of the world's fresh water, which is more than all the NorthAmerican Great Lakes combined.

(E) More than all the North American Great Lakescombined, Siberia's Lake Baikal, with more than 300 rivers draininginto it, holds 20 percent of the world's fresh water.

答案是A，我选B。 B错是因为WITH没有主语吗？

lorrain_cc

33.B中,",that is"限定性定语从句是不可以有逗号的,而且A中的more than all the NorthAmerican Great Lakes combined.是20%的同位语,也就是世界淡水的20%这个量是超过北美五大湖的总量,而不单单是淡水量

lorrain_cc

46.as+n表示作为,as+句子表示一种比较,但这里不是比较吧,而是一个平行的状况,且E的主谓都不一致

cindypalau

谢谢， 解答的很好。