[SC讨论]当从句中的代词（如it）指代主语时，是否可以（还是必须）省略？

死肥仔

各位大神好，

做题时遇到从句中有“he,she,it"等指代主语，经常纠结是否有必要省略这个代词。不省略往往说”wordy"、“指代不清”, 省略了又说该代词不可或缺，甚是烦恼，还请大神们帮忙讲解。

按个人理解，从句中的代词如果是指代主语，一般是予以省略的，例如：
John likes learning English, but he hates playing games. (he一般是省略的吧)
John likes learning English, but hates playing games. (这样更通顺吧)
通常说John does A, and does B.
不会说John does A, and he does B.

案例1：
The hognose snake puts on an impressive bluff, hissing and rearing back, broadens the flesh behind its head the way a cobra does, feigning repeated strikes, but, having no dangerous fangs and no venom, eventually, if its pursuer is not cowed by the performance, will fall over and play dead.

(A) broadens the flesh behind its head the way a cobra does, feigning repeated strikes, but, having no dangerous fangs and no venom,
(B) broadens the flesh behind its head the way a cobra does and feigns repeated strikes, but with no dangerous fangs and no venom,
(C) broadening the flesh behind its head the way a cobra does and feigning repeated strikes, but it has no dangerous fangs and no venom, and
(D) broadening the flesh behind its head the way a cobra does and feigns repeated strikes, but with no dangerous fangs and no venom, and
(E) broadening the flesh behind its head the way a cobra does, feigning repeated strikes, but with no dangerous fangs and no venom, and
OA是C，当时我排除了C，原因是我认为"it"指"hognose snake",应该是"the hognose snake puts on blah..., but has no dangerous fangs, and eventually blah"...


案例2：
In some species of cricket, the number of chirps per minute used by the male for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve as an approximate thermometer.

A. for attracting females rise and fall in accordance with the surrounding temperature, and they can in fact serve.
B. for attracting females rises and falls in accordance with the surrounding temperature, which can in fact serve
C. in attracting females rise and fall in accordance with the surrounding temperature, in fact possibly serving.
D. to attract females rises and falls in accordance with the surrounding temperature, and it can in fact serve.
E. to attract females rises and falls in accordance with the surrounding temperature, in fact possibly serving.

OA是D，当时我排除了D，原因是我认为"it"指"the number"，应该是"the number rises and falls blah..., and can in fact serve.

案例3：Not only did the systematic clearing of forests in the United States create farmland (especially in the Northeast) and gave consumers relatively inexpensive houses and furniture, but it also caused erosion and very quickly deforested whole regions.

(A) Not only did the systematic clearing of forests in the United States create farmland (especially in the Northeast) and gave consumers relatively inexpensive houses and furniture, but it also
(B) Not only did the systematic clearing of forests in the United States create farmland (especially in the Northeast), which gave consumers relatively inexpensive houses and furniture, but also
(C) The systematic clearing of forests in the United States, creating farmland (especially in the Northeast) and giving consumers relatively inexpensive houses and furniture, but also
(D) The systematic clearing of forests in the United States created farmland (especially in the Northeast) and gave consumers relatively inexpensive houses and furniture, but it also
(E) The systematic clearing of forests in the United States not only created farmland (especially in the Northeast), giving consumers relatively inexpensive houses and furniture, but it

OA是D, "the clearing created and gave, but it also caused..."

这三个例子是，主语代词不省略。

案例4:
After several years of rapid growth, the health 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.

A. while it then proved unable to handle the increase in business, falling months behind in its payment to
B. while it then proved unable to handle the increase in business and fell months behind in its payment to
C. but then it proved unable to handle the increase in business, falling months behind in its paying
D. but then proving unable to handle the increase in business, falling months behind in paying
E. but then proved unable to handle the increase in business, falling months behind in paying

OA是E，好家伙这次省略了，"the company became blah..., but (it) then proved unable to blah..."

anyway, 经常被这个代词困扰，请大神支招：

1) 这个代词能否省略
2) 这个代词什么时候省略是对的，什么时候省略是错的

目前还没人指点，只能初步总结为：
1) "I do A, and/but do B" 和 "I do A, and/but I do B" 均可
2) 在没有其它错误的情况下，省略主语代词可避免wordy

欢迎指正，谢谢！

kira0228

第一题的话用平行并列原则解题更快；第二题的话it是句子和句子间的主语呼应；第三题抓住pay这个词的动词表达意思更加；最后一题polio和it都是主语 中间既没有连词也不是同位语修饰. 建议楼主不要死抠代词 代词的用法不唯一 首先抓住原则性语法 再考虑意思 一点小意见

死肥仔

kira0228 发表于 2018-8-16 21:39
第一题的话用平行并列原则解题更快；第二题的话it是句子和句子间的主语呼应；第三题抓住pay这个词的动词表 ...

谢谢帮忙
主要是经常觉得，多了个代词读不通顺，时间又不太够，凭感觉就直接划掉该选项，经常掉坑；有时选项里多了个代词，又说wordy陷入怪圈