2017托福詞性變化及真題要點解析

　　導語：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”和“平行結構”組成TOEEL命題的三大焦點。下面YJBYS小編解析托福詞性變化的語法及真題，歡迎參考!

　　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。

　　1. 并列連詞and but or結構要求詞性統(tǒng)一

　　全真例題分析

　　(1) Bigness. Boastful. And strong. Frontiersman Mike Fink was the subject of many folk tales. 

　　[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. 

　　[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. 

　　[答案] D 并列連詞and連接三個形容詞性質(zhì)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. 

　　[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

　　[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(shù)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. 

　　[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. 

　　[答案] C 修飾整個句耶Ellis ls land reopened its great hall as a museum of immigration 應用副詞recently，表示時間。

　　(5) Because their properties differ from those of their constituents. Proper alloys can great increase the corrosion resistance of a metal.

　　[答案] C 修飾動increase 應用副詞greatly。

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