A: as a result of several improvements和because coal replaced charcoal as the fuel used in the smelting of iron ore并列。语法上是可以的,因为两者都是原因状语
C: with being replaced and improvements介词短语结构在句首作伴随状语,不是独立主格,没有办法表达出因果的关系。因此相对choice a,b改变了意思;
A 选项,more than all the North American Great Lakes combined. 作为状语,修饰前面动作hold,
D 选项,which引导定语从句which is more than all the North American Great Lakes combined应就近修饰,这里只能修饰20 percent of the world's fresh water,这是不正确的。
Halley 's comet did cause such a worlwide sensation in no other historical sighting as (it did) in its return of 1910-1911
比較用法的兩大兩小原則:
第一大:比較用片語的適當性
-普通比較(more 配 than, as配as...)
-特殊比較(compared to/with , as, like/unlike...)
,
第一小:排除自己原則
-Taipei 101 was once taller than "any other" buildings in the world.
我认为by和with相比,by不是错在毕老师说的点上。by最大的错误在于扭曲了意思,即“通过过度补偿来长出手臂。” 而with正确地表达了长出手臂的同时,有时候会多长。
选项A三个错误点:1. it指代不明,2.用by句意表达不当 3. and前后不平行