请教987中4道疑惑（过去讨论已查未得结果）

56  Acid rain and snow result from the chemical reactions between industrial emissions of sulfur dioxide and nitrogen oxides with atmospheric water vapor to produce highly corrosive sulfuric and nitric acids.

     (A) with atmospheric water vapor to produce highly corrosive sulfuric and nitric acid 为何就不能理解成 between industrial emissions of sulfur dioxideand nitrogen oxides with atmospheric water vapor

      (B) with atmospheric water vapor producing highly corrosive sulfuric and   nitric acids

(C) and atmospheric water vapor which has produced highly corrosive sulfuric and nitric acids

(D) and atmospheric water vapor which have produced sulfuric and nitric acids which are highly corrosive（E）

        (E) and atmospheric water vapor to produce highly corrosive sulfuric and nitric acids

(C) so speak on this one occasion due to her firmly believing that many minority people, even most, would likely agree

(D) do so on this one occasion because she firmly believed that many minority people, if not most, would agree（D）

(E) do so on this one occasion since she firmly believed many minority people, and even most, would likely agree
     

   大全注释：D is correct.if not most 前后用逗号，是插入语，补充说明minority people 是很多  many，“即使不是大多数”

(B) Martha Graham was acclaimed to be

(C) Martha Graham’s acclaim is as

(D) Martha Graham’s acclaim to be（A）

(E) Martha Graham’s acclaim was in being

这题百思不得其解，为何Martha Graham 得同谓语是An artistic presence ？根本是两类事物，有讨论说presence 可以解释为出席得人，但查了权威词典，未发现这一说法

110.An attempt   to ratify the Equal Rights Amendment, begun almost two decades ago, has been unsuccessful despite efforts by many important groups, including the National Organization for Women
 (A) to ratify the Equal Rights Amendment, begun almost two decades ago,

(B) begun almost two decades ago, for ratifying the Equal Rights Amendment

(C) begun for ratifying the Equal Rights Amendment almost two decades ago

(D) at ratifying the Equal Rights Amendment, begun almost two decades ago,（A）

(E) that has begun almost two decades ago to ratify the Equal     Rights Amendment

大全注释：A) best
 begun和Amendment无逻辑关系，故begun修饰An attempt，begin an attempt.，没明白这种说法，过去分词一般就近修饰，完全可以理解成再20年前被开始实施得修改，如此一来A中的begun分明是修饰的Amendment,而非attempt阿

难得问一次的，哪位好心的天使大哥大姐给指条明路吧

56.为何就不能理解成  between industrial emissions of sulfur dioxideand nitrogen oxides with atmospheric water vapor  不能这样理解，1.因为大气里的水蒸气不是工厂排放出来的，而是一直在那里的。2.工厂排放的只能是毒气（硫化物+氮化物）之类的东东。3.如果毒气和水蒸气都是工厂排放的话，按照化学反应的条件，酸雨在工厂里就合成了。题目的意思是：工厂的毒气+自然界的水汽＝酸雨

88.【many...，if not most】的固定用法，注意一点，使用的时候，many后面一定要有词，或者是many - if not most 

和它类似的还有一个，most，if not all

109 CDE是肯定错的，后面是her，前面的主语一定是人，不可能是所有格

另外C在谓语is后在加as显然是不对的，is已经是动词了，这时as这样一个介词/连词/副词放在当中，显然不通

只能选A/B，A比B简洁，as后+人，更加符合习惯。

至于句子结构，我个人感觉更像是一个带有同谓语结构的独立主格修饰着主语

110

1.begun是过去分词不是过去式，分词修饰主语attempt

2.选B起码是began，另外for+doing，介词+ing的插入语，一定错

应该去掉逗号，使用to do