前后一致Agreement
主谓一致 1
特殊名词的单复数 1
主谓很近 1
主语，插入语，谓语 1
主语of/for/with n 谓语, 从前不从后 2
主语 谓语1 and谓语2， 两个谓语单复一致，都是跟随主语 2
代词指代一致 2
It第一次出现却没有指代对象---错选的特征 2
代词指代不明确（指代对象有多个）难点 3
指代单复数 4
指代用词不准确 5
主谓一致
特殊名词的单复数
OG12-77 The only way for growers to salvage frozen citrus is to have it quickly procesd into juice concentrate before warmer weather returns and rots the fruit
OG12-80 A report by the American Academy for the Advancement of Science has concluded that many of the currently uncontrolled dioxins to which North Americans are expod come from the incineration of wastes.
OG12-5 Diabetes, together with its rious complications, ranks as the nation’s third leading cau of death, surpasd only by heart dia and cancer.
主谓很近
OG12-2 Although a surge in retail sales has raid hopes that a recovery is finally under way, many economists say that without a large amount of spending the recovery might not last.
OG12-13 A surge in new home sales and a drop in weekly unemployment claims suggest that the economy might not be as weak as some analysts previously thought.
OG12-55 Many hou builders offer rent-to-buy programs that enable a family with insufficient savings for a conventional down payment to move into new housing and to apply part of the rent to a purcha later.
刚强的近义词
OG12-129 Cajuns speak a dialect brought to southern Louisiana by the 4,000 Acadians who migrated there in 1755; their language is basically venteenth-century French to which English, Spanish, and Italian words have been added主语四种语言，谓语用复数
主语，插入语，谓语
OG12-12 Rising inventories, if not accompanied by corresponding increas in sales,
can lead to production cutbacks that would hamper economic growth.
OG12-68 The fi rst trenches cut into a 500-acre site at Tell Hamoukar, Syria, have yielded strong evidence that centrally administered complex societies in northern regions of the Middle East aro simultaneously with but independently of the more celebrated city-states of southern Mesopotamia, in what is now southern Iraq.（社会）和那些著名的美索不达米亚南部的城邦同时但独立地兴起，也就是在现在伊拉克南部。
OG12-95 The peaks of a mountain range, acting like rocks in a streambed, produce ripples in the air flowing over them; the resulting flow pattern, with crests and troughs that remain stationary although the air that forms them is moving rapidly, is known as “standing waves.”
主语莫名其妙的反义词of/for/with n 谓语, 从前不从后
OG12-33 Becau an oversupply of computer chips has nt prices plunging, the manufacturer has announced that it will cut production by closing its factories for two days a month.
错选：becau of plunging prices for computer chips, which is due to an oversupply,这里which修饰prices会友，里面要用are
OG12-60 While all states face similar industrial waste problems, the predominant industries and the regulatory environment of each state obviously determine the types and amounts of waste produced, as well as the cost of disposal.
OG12-78 Fossils of the arm of a sloth, found in Puerto Rico in 1991, have been dated at 34 million years old, making the sloth the earliest known mammal on the Greater Antilles Islands
OG12-27 Paleontologists believe that fragments of a primate jawbone （unearthed in Burma and estimated to be 40 to 44 million years old） provide evidence of a crucial step along the volutionary path that led to human beings.
OG12-133 Last week local shrimpers held a news conference to take some credit for the resurgence of the rare Kemp’s ridley turtle, saying that their compliance with 作文修改符号laws requiring turtle-excluder devices on shrimp nets is protecting 面部紧致提拉adult a turtles.
主语 谓语军事大学1 and谓语2， 两个谓语单复一致，都是跟随主语
OG12-66 The 32 species that make up the dolphin family are cloly related to whales and in fact include the animal known as the killer whale, which can grow to be 30 feet long and is famous for its aggressive hunting pods.
OG12-126 The u of lie detectors is bad on the 二年级儿童画assumption that lying produces emotional reactions in an individual 天蝎男的性格that, in turn, create unconscious physiological respons.
OG12-140 Rock samples [taken from the remains of an asteroid about twice the size of the 6-mile-wide asteroid (that eradicated the dinosaurs)] have been dated at 3.47 billion years old and thus are evidence of the earliest known asteroid impact on Earth.
