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，命題範圍包括
(1)並列結構中詞性一致、
(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.題型佔此類命題的最大比例。詞性混淆常考題型及解題要點1.並列連詞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並列連詞and連接三個形容詞，故(A)Bigness應改爲Big。
(2) The success of a naval ship is determined by its seaworthiness, speedy ,and maneuverability. (92.10)
[答案] D並列連詞and連接三個名詞，而speed是形容詞，故應改爲speed。
(3) Regulation of public utilities in the United States is carried out by locally state and federal governments. (92.5)
[答案] D並列連詞and連接三個形容詞性質的詞，共同修飾後面的中心詞governnenrfs。而locally是副詞，應改爲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並列連詞or前面是形容詞real。之後亦應是形容詞imaginary。
2.形容詞錯用爲副詞
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，是否錯用爲動詞。
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應改爲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改爲動詞原形supervise與後面名詞組成動賓
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改爲Fascinated,與後面的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改爲founded過去分詞作定語，修飾University of Chicago
5.由表示詞性的後綴- 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應改爲形容詞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應改爲名詞power，與height和speed並列。
(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應改爲形容詞dependent,用來修飾後面的名詞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改爲名詞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改爲名詞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改爲形容詞different，修飾後面的名詞。