【求助】OG12-67新问，耽误大家1分钟时间看看~先谢谢了

avernus

67. Affording strategic proximity to the Strait of Gibraltar,
Morocco was also of interest to the French throughout
the first half of the twentieth century because they
assumed that if they did not hold it, their grip on
Algeria was always insecure.

(A) if they did not hold it, their grip on Algeria was always insecure
(B) without it their grip on Algeria would never be secure
(C) their grip on Algeria was not ever secure if they did not hold it
(D) without that, they could never be secure about their grip on Algeria
(E) never would their grip on Algeria be secure if they did not hold it
Rhetorical construction; Verb form
Conditional constructionsrequire specific verb
tenses. For a past condition, the subordinate
clause introduced by if uses the past indicative,
and the main clause uses the conditional if x
happened, theny would happen.

A    Verb was should be the conditional would
be; wordy and imprecise.
B    Correct. This clear, concise sentence

correctly uses theconditional would never be.

C   Verb was should be the conditional would be;
pronoun it is ambiguous and could refer to
either Morocco or Algeria.
D   It, not that, should be used to refer backto
Morocco; could never be secure about their grip
is awkward.
E    Inverted word order isawkward and
confusing; it could refer to either Morocco or
Algeria.

答案B

我知道为什么选B了，但是关于D选项OG的解释说It, not that, should be used to refer back to
Morocco，为什么要用IT而非THAT呢？IT和THAT在这里指代有什么区别么？小弟查了半天没找到，麻烦大家帮帮忙，先谢谢了！

avernus

刚看到某N总结的Mgmat 里好像的确是这样：
1.this, that, these, those 在句子中不能裸奔，必须用作this/that/those/these+n 的结

构才能做代词使用，而这个名词则是能体现先行词性质的词。(this, those, that and
these are never used as a stand-alone pronoun wihout a noun following)
EG：New”nano-papers”incoporate fibers that give these materials strength.
2.that 或those 可以表明一个新的copy 关于先行词的,避免重复。
Eg: The money spent by her parents is more than that spent by her children.
3.tha或those 表明新copy 的时候一定前后完全一致（包括单复数），否则需要重
复先行词。
Eg：Her company is outperforming those of her competitors. 错，those与company不一
致，应将those替换为companies.

fionaz426

XDF说that，this当代词不能裸奔。单独出现不修饰别人也不被别人修饰通常错。

avernus

谢谢，有帮助，我刚查了一下，这好像是出自MGMAT的SC分册里的，但是白勇语法第245页里说that和those可以用来替代前面提到过的事物和人，以避免重复，PREP07里也有说that只能指代名字，不能指代动词
这道题关于THAT与IT区别是不是还有其他原因呢？

powers

是这个原因吧

Finally, on the GMAT, do not use this or these in place of nouns. Also, do not use that or
those in place of nouns (unless you modify that or those). Use it, they, or them instead.
Wrong: Her products are unusual; many consider THESE unique.
Right: Her products are unusual; many consider THEM unique.