詞性混淆誤用一直是TOEEL考題中最重要的命題形式。它與"基本句子結構"(本書要點之1)和"平行結構"(本書要點之4)組成TOEEL命題的三大焦點。有關詞性混淆的試題主要集中在written Expression (16-40題)中，命題范圍包括(1)并列結構中詞性一致、(2)形容詞與副詞混淆、(3)形容詞與名詞混淆、(4)名詞與動詞混淆。其中，形容詞用錯的題型占此類命題的最大比例。詞性混淆常考題型及解題要點1.并列連詞and but or結構要求詞性統一
全真例題分析
(1) Bigness. Boastful. And strong. Frontiersman Mike Fink was the subject of many folk tales. (93.3)
(答案) A并列連詞and連接三個形容詞，故(A)Bigness應改為Big。
(2) The success of a naval ship is determined by its seaworthiness, speedy ,and maneuverability. (92.10)
(答案) D并列連詞and連接三個名詞，而speed是形容詞，故應改為speed。
(3) Regulation of public utilities in the United States is carried out by locally state and federal governments. (92.5)
(答案) D并列連詞and連接三個形容詞性質的詞，共同修飾后面的中心詞governnenrfs。而locally是副詞，應改為local。
(4) In Middle Ages. Books called bestiaries were prepared in an attempt to describe animals, real or imagine, that exemplified human traits. (92.5)
(答案) B并列連詞or前面是形容詞real。之后亦應是形容詞imaginary。
2.形容詞錯用為副詞
解題要點形容詞用來修飾說明名詞或名詞性成分的，而副詞則可修飾除名詞以外的所有詞性及句子成分。
全真例題分析
(1) Animal life on Prince Edward island is confined large to ducks. Pheasants. And rabbits (93.5)
(答案)C修飾限定介詞短語to ducks pheasants and rabbits應用副詞largely。
(2) The General Sherman tree a giant sequoia in California, has grown to be the world*s largest plant at approximate 272 feet tall.
(答案) D修飾說明數詞(272)應用副詞approximately。
(3) Because its body is supported by water, the blue whale can grow to a size considerable larger than any land mammal alive today. (93.8)
(答案)修飾形容詞短語larger than…應用副詞形式considerably。
(4) Once an important port of entry for immigrants to the United States. Island recent reopened its great hall s a museum of immigration. (92.8)<詞性是否正確，是否錯用為動詞。
全真例題分析
(1) The work *saga* is often application to any narration of events of the past, whether mythical or historical in character. (92.10)
(答案) A application應改為applied，作謂語動詞的被動語態。
(2) Administrative assistants are often expected to make decisions, supervision staff, delegate responsibility, and work harmoniously with managers and fellow cmployces. (92.100
(答案) B supervision改為動詞原形supervise與后面名詞組成動賓
結構。
(3) Fascination by the promise of the internal engine and its application to a self-propelled vehicle, Henly Ford constructed a one-cylinder gasoline motor in 1892. (93.10)
(答案) A Fascination改為Fascinated,與后面的by組成過去分詞短語作狀語。
(4) From 1872 to, Alice Elvira Freeman was Dean of Women at the newly foundation University of Chicago. (93.8)
(答案) D foundation改為founded過去分詞作定語，修飾University of Chicago
5.由表示詞性的后綴- fur ,-tie -enc., -ent,-tive都很可能是此題的考試焦點
全真例題分析
(1) Few theories are originality enough to be called unique. (92.10)
(答案) C名詞originality應改為形容詞original作表語。
(2) Height, powerful and speed are attributes that coaches often look for in basketball players. (93.8)
(答案) A形容詞powerful應改為名詞power，與height和speed并列。
(3) A major purpose of scientific analysts is to idenufy and examine causal connections between independent and dependence variables. (93.1)
(答案) D名詞dependence應改為形容詞dependent,用來修飾后面的名詞variables。
(4) A deficient of folic acid is rarely found in humans because the vitamin is contained in a wide variety of foods. (92.8)
(答案)A形容詞deficient改為名詞deficiency。作主語。
(5) In nature, the distributive of plants is obviously
related to climate. (90.8)
(答案) B形容詞distributive改為名詞distribution，用主語。
(6) A foreign exchange rate is a price that reflects the relative supply and demand of difference currencies. (93.5)
(答案) D名詞difference改為形容詞different，修飾后面的名詞。