G-RON-SC-2
Parallelism - Mechanical Consideration —— 平行式
平行式的特征——特征词
多元素组成的特征词（either…or…）
单元素组成的特征词（逗号，and，or）
解决平行式的方法论
寻找特征词
了解特征词最右方的结构（介宾？动宾？）
按需在左方找到对应结构，便算为一个平行式（完美与不完美之分）
例题
sloth：修饰成分可以不跟主语动作平行，但特征词左右的修饰成分需要平行
hand sign：定语从句要平行，过去分词和现在分词也可以组成不完美平行
argue：要看到平行成分的前置插入，比如 They argue as frequently and about the same topics as the couple living next door to them
dioxins：修饰成分的结尾不能是介词，the restaurant we ate at改成the restaurant at which we ate
Usage of Compared to/with —— 短语”Compared to/with“的用法
首先，这两个没区别；
若有其他表示”比较“的表达，就不要再用compared类短语了，造成冗余；
例题
B when A是指当A为真时，B才为真，在概率上说，无论怎么样都是真的。
数据要跟数据比对，不能compared to 年份 或者 unlike 年份
数据不能够主动比较，所以伴随型“, comparing”是错的
with 20% 是不符合常规语言习惯的
population（迷惑题）：
Providing initial evidence that airports are a larger source of pollution than they were once believed to be, environmentalists in Chicago report that the total amount of pollutant emitted annually by vehicles at O'Hare International Airport is twice as much as that which is being emitted annually by all motor vehicles in the Chicago metropolitan area.
(A) as much as that which is being emitted annually by all
(B) as much annually as is emitted by the
(C) as much compared to what is annually emitted by all
(D) that emitted annually by all
(E) that emitted annually compared to the
A. as that which is being emitted annually by all – that which is redundant and being emitted is inelegant.
B. as much annually as is emitted by the – annually can not be separated from emitted; as much annually as is emitted is wrong word order.
C .as much compared to what is annually emitted by all – wrong idiom; a comparison stared with -as- should be completed with- as [/b]-
D. that emitted annually by all – perfect parallelism and crisp language; amount of pollutant [b]emitted annually by vehicles at O’Hare International Airport is matched by that emitted annually by all motor vehicles – This is the right choice
E. that emitted annually compared to the – wrong; comparing emission with motor vehicles.
