is /become 省略

2.     After crude oil, natural gas is the United States second biggest fuel source and supplied almost exclusively from reserves in North America.

(A) After crude oil, natural gas is the United States second biggest fuel source and supplied almost exclusively from reserves in North America.

(B) Natural gas, after crude oil the United States second biggest fuel source, supplied almost exclusively from reserves in North America.

(C) Being supplied almost exclusively from reserves in North America, natural gas, the United States second biggest fuel source after crude oil.

(D) Natural gas, the United States’ second biggest fuel source after crude oil, is supplied almost exclusively from reserves in North America.（D）

(E) Natural gas is supplied almost exclusively from reserves in North America, being the United States’ second biggest fuel source after crude oil.

答案没问题..

A 

(A) After crude oil, natural gas is the United States second biggest fuel source and supplied almost exclusively from reserves in North America.

白用 书上 说 supplied 和is  平行。

             但为什么 不理解 suppiled 前面 省略了 is ..

 不是 作为并列举 的 is/ become 省略么？

（并帮忙解释一下A 的错）

如：

(A) After crude oil, natural gas is the United States second biggest fuel source and supplied almost exclusively from reserves in North America.

白用 书上 说 supplied 和is  平行。

             但为什么 不理解 suppiled 前面 省略了 is ..

 不是 作为并列举 的 is/ become 省略么？

（并帮忙解释一下A 的错）

如：

(A)  the levels of bacteria in seawater at popular beaches to be measured and that the results be

(B)  that seawater at popular beaches should be measured for their levels of bacteria, with the results being

(C)  the measure of levels of bacteria in seawater at popular beaches and the results to be

(D)  seawater measured at popular beaches for levels
        of bacteria, with their results （E）

(E)   that the levels of bacteria in seawater at popular beaches be measured and the results

E 选项：补全为

 Despite protests from some waste-disposal compa­nies, state health officials have ordered  that the levels of bacteria in seawater at popular
       beaches be measured and the results（be）pubilished.

e  ， 的后半句 省略了 is  , 满足 作为并列举 的 is/ become 省略。

宾语从句并列的时候

前句有be/become，则后句的be和become必须省略

218是这情况。

--------------------------------------

A) After crude oil, natural gas is the United States second biggest fuel source and supplied almost exclusively from reserves in North America.

是两个并列句，主语相同虽然可以省略，但谓语动词不能省的

如果省了 is，则supplied的意思变化了，变成主动了，但是主动意思又不对

只能理解成分词，

白勇的书的意思是“is 。。。”和（分词）“supplied  ”不平行

宾语从句并列的时候

前句有be/become，则后句的be和become必须省略

可是 这道题：

     Once the economic and social usefulness of the motor car was demonstrated and with its superiority to the horse being proved, much of the early hostility to it in rural regions disappeared.

(A) and with its superiority to the horse being

(B) and its superiority over the horse had been

(C) and its superiority to the horse

(D) its superiority over the horse（C）

(E) with its superiority to the horse having been

答案 是 c 阿， 省略了 BE 呀。 也 省了亚。

把c 不进去，不是 宾语从句 阿 ！

我觉的这道题的was不好省的

主语都不一样，怎么可以省呢

比如：mary is girl and John boy？这样可以的啊？？？

不对的吧

帅哥pengfei1102

Once the economic and social usefulness of the motor car was demonstrated and with its superiority to the horse being proved, much of the early hostility to it in rural regions disappeared.

(A) and with its superiority to the horse being

(B) and its superiority over the horse had been

(C) and its superiority to the horse

(D) its superiority over the horse（C）

(E) with its superiority to the horse having been

答案 是 c 阿， 省略了 BE 呀。 就是 省了亚。

白勇的书上这道题目是B好伐

我告诉你在第146页，29题

c：and连接once从句和名词短语 its superiority，两者不平行

你的电子板肯定有错误

叫的  我都 有点不好意思了!! 呵呵 ~  白用 是 B呀。 那为什么 我就不能 问 了.!!! 那为什么 我就 不能 说正确答案是 C 了.

不过 真的很谢谢 帅哥: gonghao....  还是 继续看下去吧.. 

可是:

552, sec10-15

A) and前后不平行。
B) 时态错。
C) best. 可认为proved前省was. superiority 应用to
D) 大错。
E) 大错。

In choice C, the best answer, the main predication usefulness…was demonstrated is paralleled by superiority [was] proved, with [was] omitted as understood. In choices A and E, the prepositional phrase beginning with…violates this parallelism; in A, B, and E, the verb forms being, had been, and having been are not consistent with the simple past tense in was demonstrated. The phrase superiority over is unidiomatic in B and D: x is superior to y, not over y. D is also faulty because no function word, such as the conjunction and, grammatically connects its superiority… to the rest of the sentence.

economic and social usefulness of the motor car was demonstrated

its superiority to the horse proved

用and连接

主语不一样，谓语不一样，两个独立的句子，was肯定不能省的

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另外：朗文的关于superiority的解释

[uncountable]
1
the quality of being better, more skilful, more powerful etc than other people or things
ￚopposite inferiority
superiority of
the supposed superiority of the male sex
superiority over
the intellectual superiority of humans over other animals
superiority in
US superiority in air power
2
an attitude that shows you think you are better than other people - used to show disapproval
Janet always spoke with an air of superiority. his sense of superiority

---------------

另外：

superior to
Your computer is far superior to mine.
He loves making fun of women. It makes him feel superior .a vastly superior (=very much better, stronger etc) army

be

1.在宾语从句并列中，省略

2.在比较中，前面有BE得话可以省

3.句子+句子，主语一致，谓语都是be，且没有明显的时态标志，则be可以省

现在：Once the economic and social usefulness of the motor car was demonstrated and with its superiority to the horse being proved, much of the early hostility to it in rural regions disappeared

改成

much of the early hostility to it in rural regions disappear once the economic and social usefulness of the motor car（名次） was demonstrated（句子） and its superiority名词 to the horse proved

proved问题

1.如果是was+proved没什么问题

2.可以是分词，proved修饰superiority名词

3.可以是分词修饰horse

告诉我你认为为什么它就一定是【可能性1】呢？