2017托福词性变化及真题要点解析

导语：词性混淆误用一直是TOEEL考题中最重要的命题形式。它与“基本句子结构”和“平行结构”组成TOEEL命题的三大焦点。下面YJBYS小编解析托福词性变化的`语法及真题，欢迎参考!

　　有关词性混淆的试题主要集中在written Expression (16-40题)中，命题范围包括：

(1)并列结构中词性一致，

(2)形容词与副词混淆，

(3)形容词与名词混淆，

(4)名词与动词混淆。

其中，形容词用错的题型占此类命题的最大比例。

　　1. 并列连词and but or结构要求词性统一

　　全真例题分析

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

[答案] A 并列连词and连接三个形容词，故(A)Bigness应改为Big。

(2) The success of a naval ship is determined by its seaworthiness, speedy ,and maneuverability.

[答案] D 并列连词and连接三个名词，而speed是形容词，故应改为speed。

(3) Regulation of public utilities in the United States is carried out by locally state and federal governments.

[答案] D 并列连词and连接三个形容词性质的词，共同修饰后面的中心词governnenrfs 。而locally是副词，应改为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 并列连词or前面是形容词real。之后亦应是形容词imaginary。

　　2. 形容词错用为副词

解题要点 形容词用来修饰说明名词或名词性成分的，而副词则可修饰除名词以外的所有词性及句子成分。

　　全真例题分析

(1) Animal life on Prince Edward island is confined large to ducks. Pheasants. And rabbits

[答案]C 修饰限定介词短语to ducks pheasants and rabbits 应用副词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 修饰说明数词(272)应用副词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] 修饰形容词短语larger than…应用副词形式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 修饰整个句耶Ellis ls land reopened its great hall as a museum of immigration 应用副词recently，表示时间。

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

[答案] C 修饰动increase 应用副词greatly。