下面GMAT思频道为大家整理了GMAT PREP语法句子改错笔记，供考生们参考，以下是详细内容。
以下各个题目均来自GMAT官方模考软件PREP，通过反复做模考软件后将不重复的题目汇总得来，所有答案均为GMAT官方答案
1. The Anasazi settlements at Chaco Canyon were built on a spectacular scale with more than 75 carefully engineered structures， of up to 600 rooms each， were connected by a complex regional system of roads.
A. with more than 75 carefully engineered structures， of up to 600 rooms each， were
B. with more than 75 carefully engineered structures， of up to 600 rooms each，
C. of more than 75 carefully engineered structures of up to 600 rooms， each that had been
D. of more than 75 carefully engineered structures of up to 600 rooms and with each
E. of more than 75 carefully engineered structures of up to 600 rooms each had been
A: were谓语重复，应该去掉
B: correct，connected分词修饰句子主语settlements
C: 第二个of修饰Structures不对，应该修饰scale;each同位语从句用过去完成时没必要，
D: 第二个of修饰Structures不对，应该修饰scale;and with each没有平行对象，
E: 第二个of修饰Structures不对，应该修饰scale;each后面是完整句子但没有连词
注意：
1、The Anasazi settlements at Chaco Canyon were built on a spectacular scale of up to 600 rooms each， connected by a complex regional system of roads. each指The Anasazi settlements，而不是rooms或者structures!
2、介词的修饰对象、插入语、逗号+过去分词的用途及修饰对象
2. According to one expert， the cause of genetic irregularities in many breeds of dog is not so much that dogs are being bred for looks or to meet other narrow criteria as that the breeds have relatively few founding members.
A. the cause of genetic irregularities in many breeds of dog is not so much that dogs are being bred for looks or to meet other narrow criteria
B. the cause of genetic irregularities in many breeds of dog is not as much their being bred for looks or meeting other narrow criteria as much
C. it is not so much the cause of genetic irregularities in many breeds of dog that they are being bred for looks or meeting other narrow criteria as much
D. it is not so much the cause of genetic irregularities in many breeds of dog is their being bred for looks or meeting other narrow criteria so much
E. it is not so much the cause of genetic irregularities in many breeds of dog to be bred for looks or to meet other narrow criteria
A: correct，for looks or to meet 平行修饰谓语bred
B: not so much their…as much as that 不平行
C: it表语从句用法错，not so as…as much as 不平行
D: 同上，第二个is多余， not so much… so much as用法错
E: 同上，to be bred 和 to meet 逻辑不平行
注意：
1、not so much that… as that表示与其说…不如说，形式平行
2、for looks or to meet是功能平行而不是形式平行，表示be bred的目的
3、从表面上看E的to be done 和 to do形式上最平行，但逻辑上修饰对象是错的，是迷惑选项。
3. Greatly influenced by the Protested missionary Samuel Kirkland， the Oneida was the only one of the five-nation Iroquois League who sided with the colonists during the American Revolution.
A. was the only one of the five-nation Iroquois League who sided
B. was alone of the five-nation Iroquois League when they sided
C. alone among the five-nation Iroquois League sided
D. were the only ones out of the five nations of Iroquois League in siding
E. only of the five-nation Iroquois League had sided