在比较的第二个部分中,主语后面常要更一个助动词,来使比较对象更加清楚,但是若是在没有歧义的情况下,也就是说在第一个主语后

在比较的第二个部分中,主语后面常要更一个助动词,来使比较对象更加清楚,但是若是在没有歧义的情况下,也就是说在第一个主语后没有宾语就可以吧后面的第二部分的助动词省了
1.The Amazon River carries more water than any other river in the world.
宾语water 为什么能省呢 应该为any other river does in the world.
2.Few poets combine passion with precise expression as well as Edna St.Vincent Millay’s poetry.
a.Edna St.Vincent Millay’s poetry’s poetry
b.Edna St.Vincent Millay
c.The poetry of Edna St.Vincent Millay
d.In the poems of Edna St.Vincent Millay
e.Edna St.Vincent Millay would do
正解Edna St.Vincent Millay
我选Edna St.Vincent Millay would do; 句中有宾语passion with precise expression 那么同类比较的话这5个选项中最好的就是Edna St.Vincent Millay would do了

第一题是主语比较如果主语相同可以省略 如果主语相同但定语不同,可以用 those 或者 that代替主语,其后补充定语!注意体会主语比较 其他的河carry的也是水吧?不是沙子,也不是淤泥!所以,比较的是主语!
另外,到底什么能省略GMAT应该是ETS最高标准了吧!不是太难,但很正式,会避免你出错!下面解释的不能再详细了!
请大家分析以下比较在ETS看的含义
Rice has protein of higher quality than wheat does.(主语比较,Rice 与wheat比）
意义：米有高质蛋白质,麦没有.
Rice has protein of higher quality than of lower quality(介宾比较,of higher 与 of lower比）
意义：米有高质蛋白质而非低质蛋白质
Rice has protein of higher quality than that in wheat(宾语比较,protein 与protein(that指代)比
Rice has protein of higher quality than sugar.（宾语比较,protein 与sugar比）
意义：米中的蛋白质比麦中蛋白质质量高
意义：米中的高质蛋白质比糖多.
Rice has protein of higher quality than usual/ever before/1000 years ago/people expected(状语比较）
意义：米比通常/经往/多年前/人们预测/的蛋白质质量要高.
下面我们谈比较之庖丁解牛
对主谓宾全的句型
主语比较：A do sth than B do.（AB为对等名词,加do是为了显示这是一个可以发出动作的名词,因而确定是主语,进而确定是主语对比）
介宾比较 A do sth of C1 by D1 than of C2 by D2.（C1C2,D1D2对等名词）
宾语比较 A do C1 than C2.(C1C2为对等名词）
状语比较A do sth than usual/everbefore/people expected(直接加状语）
ETS就这几下子,原则就是清楚地指示什么跟什么比.
按照这个原理,对下一种句型只有主谓,没有宾语的句子,因为没有宾语,只可能有主语比较,因而不需要重复do来确认这是一个可发出动作的主语,所以其比较形式如下：
I eat faster than you.注意与下句区别
I eat apple faster than you do
如果写成 I eat apple faster than you 按ETS的理解,从语法上就变成我吃苹果比吃你快,成了宾语比较.逻辑上显然不通.
AS族的比较大同小异,as 可单独引导比较,也可以复合成as many as,as hard as 等形式,但ETS宗旨不变,如
Sand road costs twice as many to build as to maintain(类似于介宾比较）
Sand road costs twice as many to build as stone road do(主语比较,）
Sand road costs the government twice as many to build as the residents.(宾语比较）
ETS考过AS比较的习惯用法（不受上述限制,如下）
AS poor as they are,they can not afford a car.
They have 800million students,as many as have enrolled in our school.
(注意以上都是用逗号隔开的句子,AS在这里的作用更类似连词,连接一个主句和一个从句）
注意AS有时不表比较的如as you work hard,you will pass the exam.表原因了.
There be 句型等同于一般的主谓宾俱全的句型
OG89
There is one PC for every 32 pupils in American four time as many as there were four years ago(主语比较)
There is one PC for every 32 pupils in American four time as many as DVD player(宾语比较)
There is one PC for every 32 pupils in American four time as many as for school teachers.(介宾比交)
There is one PC for every 32 pupils in American four time as many as in china(介宾比较)
第二题说实话我也有点疑问 ETS在出题上向来严谨,不怕多用单词,如果真选B的话 不想是ETS的风格!估计是其他的练习题吧!因为单纯的解释为省略了does很容易照成意思的扭曲!比如如果是在其他句子中很容易和宾语比较弄混!但是,这道题可能是一个特例吧!这道题唯一的好处在于combine AwithB固定短语,介宾比较,和宾语比较都不存在可能!因为宾语比较肯定是as A WITH B,介宾比较也需要是as WITH A.所以答案好选,但是答案的风格不太像ETS的风格.