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题库 / Prep2007E1-SC-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.
and producing energy on a commercial scale, enough for efficient generation of electricity and heating
and producing enough energy on a commercial scale for electricity to be generated efficiently and to heat
for energy production on a commercial scale, enough for generating electricity efficiently and to heat
to produce energy on a commercial scale, enough for generating electricity efficiently and for heating
to produce enough energy on a commercial scale for efficient generation of electricity and heat
E选项：to produce enough energy（ on a commercial scale） for efficient generation of electricity and heat
这里heat前先不管for补不补，平不平行，这里的heat一定是n词性，这样才能跟generation平行，但是这样的话，跟后面的名词就就不上了，heat（n）factories，无意义。
所以一定要是v，d选项中正确
mine heat的目的是为了produce energy，两个动词不应该是and连接平行的关系
这题比较难在于，考对意思的把握，mining和producing从语义上讲，不是平行的。
此题翻回来看，也没看明白，到底咋回事
e里for heat也不对，heat这里是动词
应该将D选项看完的，B项有问题在于，不是电力供暖，而是整个能源系统。
E, electricity 和 heat factoried and homes 不平行
for the first time to do
错误的逻辑思路：
①我把producing和mining视为平行的两个部分→这是第二次栽进这个坑了，当有前面后两个动词时，and后面的并列如果没有其他介词做指示，应该与第一动词平行，例如：A.have succeed for the first time in mining and produce;或者B.have succeed for the first time in mining and in producing·····
②我把enough视为modify electricity，然后不足够挨近electricity而排除答案→这不是主要考点，不考虑
正确的逻辑思路
③又由于to do比for更好，由此排除A/B/C
④考虑第二个and的平行，D正确，E，heat不应与produce并列，逻辑错误（这个点其实要求对句意的理解）
mining heat和produce有关系，to produce做目的状语
mining 开采
B succeeded in mining and producing for electricity, 目的是electricity，语义不对。应该是for 发电
A generation 与heating不平行
E efficient generation与heat不平行
而且B选项的“electricity to be generated efficiently”中的被动语态也没有逻辑主语，可以认为是XX generate electricity,相比之下，D更好一点
the first time to
enough for doing 做energy 的插入语，可以独立存在。
DE 比较，可能D 能容易看出那些内容是平行的。
我在开始做题的时候，想的却是一个句子没有逗号，一个句子有逗号。觉得有逗号容易错
in mining/to produce 平行？ WTF.....
a选项后面 generation of electricity and heating factories and homes， electricity和heating factories and homes不平行，同时mining heat 和producing energy不应该是平行关系，应该是具有一定的因果关系，所以排除
b同理
c后面enough for generating electricity efficiently and to heat不平行，同时前面用for不是特别好，因为第一次挖出来热能会影响到后面的有效采集，用不定式控制力应该更强
d，不定式用的正确， enough for generating electricity efficiently and for heating平行，完美答案
e，前面不定式没问题，后面for efficient generation of electricity and heat不平行，排除
错选E
应该平行的对象是generating electricity and heating homes/factories
(e) is incorrect.
because
(a) the logical parallelism is between generating electricity and heating homes/factories. therefore, any construction that creates parallelism between elements other than these is incorrect.
or
(b) the parallelism in the original choice, which makes sense and therefore must be followed, is between those two things. therefore, any answer choice putting other elements in parallel constitutes an unacceptable change in meaning.