请教prep 1-44, 46

44.     Scientists at the Los Alamos National Laboratory have succeeded for the first time in
mining heat from the Earth's interior and producing energy on a commercial
scale, enough for efficient generation of electricity and heating factories
and homes.

(A) and producing energy on a commercial scale, enough for efficient generation of
electricity and heating

(B) and producing enough energy on a commercial scale for electricity to be generated
efficiently and to heat

(C) for energy production on a commercial scale, enough for generating electricity efficiently
and to heat

(D) to produce energy on a commercial scale, enough for generating electricity
efficiently and for heating

(E) to produce enough energy on a commercial scale for efficient generation of
electricity and heat

请问这道题为什么不选D？C中enough for...and to...一个动名词一个不定室并不平行啊？谢谢NN指教！

偶对错答案了，这个就是B。

46.     The continental United States receives an average of 30 inches of precipitation a
year; transpiration from soil and from plants returns approximately 21 of
the 30 inches to the atmosphere, while the balance of 9 inches contributes to
the flow of streams and rivers.

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

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

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

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

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

这道题D. E是怎么排除的？是不是因为没有转折所以改变了原文的意思？谢谢NN指教 ~

两道题都是自己把答案看错了，自己来改正吧：D with...to return错；E的as transpiration ....return...中的return该用单数；B\C中最后to the flowing of错；所以最后只有A对。如果不对，NN们指正！

44是选D啊

谢谢，我对错答案拉！～

请问with后面真的不能接不定式吗?

那以下这个怎么解释呢? 我已经忘了我是在哪看到的

很有可能是在CD上某位大牛的总结吧

with复合结构
            －
        GMAT常考点（且独立主格结构仅有考点）
            

它的构成是：“with ＋
        宾语
        ＋
        宾语补足语”。宾语由代词、名词、名词词组充当，宾补由分词、不定式、形容词、副词、介词短语、名词等充当。
            

                        E.g.: He used to sleep, with the door open. 他过去常开着门睡觉。（形容词）
            

                        E.g.: With a boy leading the way，they started towards the village. （现在分词）
            

                        E.g.: With the work done，he went home. （过去分词）
            

                        E.g.: With you to help us，we will finish the task in time. （不定式）
            

                        E.g.: Hong Kong looks more beautiful with thou-sands of lights on at night. （副词）
            

从以上例句可以看出：在with复合结构中，宾语和宾补之间形成逻辑上的主谓关系。当这种主谓关系表现为主动语态时，用现在分词；当这种主谓关系表现为被动语态时，用过去分词；当这种主谓关系表示将来意义时，用不定式；当这种主谓关系表示伴随意义时，用现在分词或副词。
        

另外关于44题B选项,正确答案没问题

Scientists at the Los Alamos National Laboratory have succeeded for the first time in mining heat from the Earth's interior and producing energy on a commercial scale, enough for efficient generation of electricity and heating factories and homes.

 (B) and producing enough energy on a commercial scale for electricity to be generated efficiently and to heat

这里的to heat不能视为与to be generated对称修饰electricity吗?

还有前面的and producing可以跟mining对称吗?但是我认为若真要对称

也应该加上in才不会造成歧义,是这样吗?

快要考试了
            重看PP却越看问题越多

大家帮帮忙啊

顶~

Scientists
            at
            the
            Los
            Alamos National Laboratory have succeeded for
            the
            first
            time
                in
                mining heat from
            the
            Earth's
            interior and producing
                energy on a
            commercial
            scale

这样的平行可以吗? 意思上也是可以接受的吧!

另外,自己回答一下

B的to heat若和to be generated平行则主语变成了electricity

和原句的energy…to heat不同

对吧?

请大家指点一下