质疑gwd-23-23答案.关于and/but连接并列句子是否补出主语用法

Q23:

After several years of rapid growth, the healthy care company became one of the largest health care providers in the metropolitan area, while it then proved unable to handle the increase in business, falling months behind in its payment to doctors and hospitals.

1. while it then proved unable to handle the increase in business, falling months behind in its payment to

2. while it then proved unable to handle the increase in business and fell months behind in its payment to

3. but then it proved unable to handle the increase in business, falling months behind in its paying

4. but then proving unable to handle the increase in business, falling months behind in paying

5. but then proved unable to handle the increase in business, falling months behind in paying

   Answer: e

mine:c

And引导的并列成分前后主语相同的情况下:And前没有逗号不需补出主语

71. The original building and loan associations were

organized as limited life funds, whose members made monthly payments on their share subscriptions, then taking turns drawing on the funds for home mortgages.

(A)  subscriptions, then taking turns drawing

(B)  subscriptions, and then taking turns drawing

(C)  subscriptions and then took turns drawing

(D)  subscriptions and then took turns, they drew

(E)   subscriptions and then drew, taking turns

The sentence speaks of a sequence of actions in the past:

shareholders made their monthly payments and subsequently took turns drawing on the funds. Choice C, the best answer, uses parallel past-tense verb forms to express this sequence. Choices A and B violate parallelism by using taking where took is required. The wording in D results in a run-on sentence and does not specify what the members took turns doing. Similarly, E does not specify what the members drew, and taking turns produces nonsense when combined with the rest of the sentence.

And引导的并列成分前后主语相同的情况下:And前有逗号需补出主语

97. Iguanas have been an important food source in Latin America since prehistoric times, and it is still prized as a game animal by the campcsinos, who typically cook the meat in a heavily spiced stew.

(A)  it is still prized as a game animal

(B)   it is still prized as game animals

(C)  they are still prized as game animals

(D)  they are still prized as being a game animal

(E)   being still prized as a game animal

All nouns and pronouns grammatically referring back to the plural noun Iguanas must be plural. Choices A, B, D, and E all produce agreement problems by using singular forms (it, animal), leaving C the best choice. In addition, D is awkward and wordy, and E offers a participial phrase (being ...) where the beginning of an independent clause is required.

129. In an effort to reduce their inventories, Italian vint­ners have cut prices; their wines have been priced to sell. and they are.
                

(A)  have been priced to sell, and they are

(B)  are priced to sell, and they have

(C)  are priced to sell, and they do

(D)  are being priced to sell, and have

(E)   had been priced to sell, and they have

In choice C, the best answer, do is correctly used in place of the full verb do sell; in this verb, do is a conjugated[t1]  .

<语法>使(动词)变化, 变化form and sell is in the infinitive form, corresponding to its previous use in the sentence (in the phrase priced to sell). In choice A, the omitted word is selling; in B, D, and E, it is sold. Neither of these forms corresponds properly to to sell earlier in the sentence. Also, in E, the past perfect had been priced signifies that the wines had been priced to sell before the prices were cut. OG 11th explanation:

The first complete verb phrase is have been priced to sell.  The 2nd verb does not need to repeat the word sell because it is understood from the first use.  However, the second verb must be correctly conjugated with the understood sell.  They are sell is not correct, they do sell is correct.

只要不歧义就可省.

OG172: but rather (energy source is) a kind of...

OG264: male moths call..., and (moths) attract

斑竹举的这两题和我说的用法不同,我指的是主语1+谓语1+宾语1,and/but主语1+谓语2+宾语2这种情况;

og172是not...but结构but后面与not后面结构公用一个系动词be.

og264, rather than olfactory ones, 是插入语啊,所以call ..and atrack...之间并没有逗号

172. The energy source on Voyager 2 is not a nuclear reactor, in which atoms are actively broken apart;
                rather a kind of nuclear battery that uses natural radioactive decay to produce power.

(A)  apart; rather

(B)  apart, but rather

(C)  apart, but rather that of

(D)  apart, but that of

(E)   apart; it is that of

Choice
            B, the best answer

264. Scientists believe that unlike the males of most species of moth, the male whistling moths of Nambung, Australia, call female moths to them by the use of acoustical signals, but not olfactory ones, and they attract their mates during the day, rather than at night.

(A)  by the use of acoustical signals, but not olfactory ones, and they attract

(B)  by the use of acoustical signals instead of using olfactory ones, and attracting

(C)  by using acoustical signals, not using olfactory ones, and by attracting

(D)  using acoustical signals, rather than olfactory ones, and attract

(E)   using acoustical signals, but not olfactory ones, and attracting

Choice D, the best answer,

你举的两个例子OG97,OG129谓语动词分别是BE动词和主动词，此时你不能省掉主语，要不你读读多别扭。而Q23中是两个实意动词的并列，省掉不影响句意，而且满足能省就省的简洁原则。

还有补出 IT后，IT会不会有歧意去指代area, 不确定。你可以argue说，it优先指代，或者从逻辑上指代主句主语，不过很难说。代词指代本来就复杂，何必再引进一个带来潜在的风险？

23-23那题C的错是its paying, 因该是its payment.