1. 含并列连词and but or的平行结构来源：考试大 解题要点 当上述并列连词连接两项或多项对等成分时，这些成分必须同词性、同形式。特别注意出现三项以上（含三项）的并列成分，多是考试焦点。
全真例题分析来源：考试大 (1) Quartz may be transparency, translucent, or opaque, and it may be colorless or colored (91.5) [答案] A 并列连词or连接三项，其中两项为形容词translucent与opaque，故（A）应用形容词transparent与之并列。
(2) At the age of 94. Composer, conductor. Arranger. And acting Eva Jessye led her choral group in the first production of the opera porgy and Bess, written in 1935. (92.1) [答案] A 并列连词and连接四项表示身份职业的名词，故（A）动名词应改为actress。
(3) Atrophy is a decrease in size of a cell, organ, tissues, or other part of the body such as (91.10) [答案] C 并列连词or连接四项名词结构，其中cell 和organ皆为单数形式，故（C）亦应改为单数tissue。
(4) Direct mail advertising serves to acquaint customers with Products, alert them to new opportunities, and paving the way for other sales activities (93.1) [答案] C 并列连词and连接三项动宾结构，前两项均为动词原形，故（C）动名词亦应改为原形动词pave.
(5) A majority of the reports received from people claiming to have seen the lengendaiy Loch Ness monster have proven to be mistakes, misconceptions, or they were being tricked. (93.10) [答案] D 并列连词or连接三项成分。前两项均为名词，故（D）不应出现句子结构，而应改为名词tricks与前面的mistakes和misconceptions平行。
(6) The tongue is capable of many motions and configurations and plays vital rode in chewing, swallowed and speaking. [答案] D 并列连词and连接三个单词。其中两项均为动名词，故（D）亦应改为动名词swallowing。 来源：考试大 2. 比较级句型要求对比双方结构对等，比较范围相当。来源：考试大
全真列题分析来源：考试大 (1) Probably no man had more effcet on the daily lives of most people in the United States ------- Henry Ford. A pioneer in automobile production. (A) as was (B) than was (C) than did (D) as did (92.8) [答案] C 比较句型 more…than 要求比较的双方结构相等。前项是实义动词的过去时形式had，故选（C）than did与之平行。
(2) The state of Maine generally has cooler temperatures than ------- (A) there are most other states (B) most other states which have (C) most other states have (D) having most other states (93.10) [答案] C 这是标准的more…than比较句型。只有（C）的句子结构与相对比的前一项完全一致。
(3) The annual worth of Utah*s manufacturing is greater than------- (A) that of its mining and farming combined来源：考试大 (B) mining and farming combination (C) that mining and farming combined来源：考试大 (D) of its combination mining and farming (91.8) [答案] A 此句比较的是utah的年产值（the annual worth) （A）中that即代替了the annual worth，故前后比较的范围，内容一致。
(4) The activities of the international marketing researcher are frequently much broader than------- (A) the domestic marketer has来源：考试大 (B) the domestic marketer does (C) those of the domestic marketer (D) that which has the domestic marketer (91.5) [答案] C 此句比较的是国际市场研究者与国内市场研究者的活动（the activities) 为避免同词重复，用（C）those来代替前面的名词the activities ,因而对比双方比较的范围是平行相等的。
(5) Fructose is a monosaccharide sugar that is much sweeter ------- (A) than cane sugar does (B) does cane sugar (C) cane sugar (D) than cane sugar (90.5) [答案] D 此比较句型前半部分主系表结构，后半部不可出现助动词does（答案A及B），但可省略系词，如（D）。