北京新航道为托福考生提供托福考试指导和建议。在托福考试中，若说词汇是基础，那么语法就是脉络，支撑着所有的题型。对同学来说，语法是令人头疼的，从开始接触，到学已数载，可能还是没弄明白。其实，语法并不是那么难懂，只要用心去揣摩，多做练习，就会潜移默化的懂了。在这里，我们针对托福考试中的语法进行分类解析，帮助考生复习，重拾语法信心。

　　词性同化误用一向是TOEEL考题中最主要的命题形式。它与“根基句子结构”(本书要点之1)和“平行结构”(本书要点之4)组成TOEEL命题的三大焦点。有关词性同化的试题首要集中在written Expression (16-40题)中，命题规模搜罗(1)并列结构中词性一致、(2)形容词与副词同化、(3)形容词与名词同化、(4)名词与动词同化。此鱿脯形容词用错的题型占此类命题的比例。

　　词性同化常考题型及解题要点

　　1. 并列连词and but or结构要求词性统一

　　全真例题剖析

　　(1) Bigness. Boastful. And strong. Frontiersman Mike Fink was the subject of many folk tales. (93.3)

　　[谜底] A 并列连词and毗连三个形容词，故(A)Bigness应改为Big。

　　(2) The success of a naval ship is determined by its seaworthiness, speedy ,and maneuverability. (92.10)

　　[谜底] D 并列连词and毗连三个名词，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. (92.5)

　　[谜底] D 并列连词and毗连三个形容词性质的词，配合润色后面的中心词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. (92.5)

　　[谜底] 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 形容词用来润色声名名词或名词性成分的，而副词则可润色除名词以外的所有词性及句子成分。

　　全真例题剖析

　　(1) Animal life on Prince Edward island is confined large to ducks. Pheasants. And rabbits (93.5)

　　[谜底]C 润色限制介词短语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.

　　[谜底] D 润色声名数词(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. (93.8)

　　[谜底] 润色形容词短语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. (92.8)

　　[谜底] C 润色整个句耶Ellis ls land reopened its great hall as a museum of immigration 应用副词recently，暗示时刻。

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

　　[谜底] C 润色动increase 应用副词greatly。

　　3. 以副词后缀-ly组成的副词错用为形容词

　　解题要点 A、B、C、D四个选择谜底中如不美观有以-ly形式组成的副词，应首先考虑它的词性是否正确，是否错用为形容词。

　　全真例题剖析

　　(1) Parrots have heavily bodies and exceedingly strong legs. (93.8)

　　[谜底] A 润色名词应用形从词。Heavily 应改为heavy。

　　(2) The katydid a type of grasshopper is actively at night and rests motionless amid foliage during the day. (93.8)

　　[谜底] B 改为形容词active，作表语。

　　(3) Although the unified states experienced rapidly growth in the first half of the nineteenth century ,it was still predominately concerned with agriculture and forestry (93.10)

　　[谜底] A 润色名词应用形容词rapid growth。

　　(4) Although they are in different countries, Windsor. Ontario and Detroit, Michigan are close neighbors and cooperate on numerous matters of mutually interest. (91.5)

　　[谜底] D 改为mutual interest。

　　4. 以名词后缀- tion ,- sion 组成的名词错用为动词

　　解题要点 A、B、C、D四个选择谜底中呈现以-tion, -sion形式组成的名词，应首先考虑它的词性是否正确，是否错用为动词。

　　全真例题剖析

　　(1) The work *saga* is often application to any narration of events of the past, whether mythical or historical in character. (92.10)

　　[谜底] A application应改为applied，作谓语动辞书被动语态。

　　(2) Administrative assistants are often expected to make decisions, supervision staff, delegate responsibility, and work harmoniously with managers and fellow cmployces. (92.100

　　[谜底] B supervision 改为动词真相supervise与后面名词组成动宾结构。

　　(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)

　　[谜底] A Fascination 改为Fascinated, 与后面的by 组成曩昔分词短语作状语。

　　(4) From 1872 to, Alice Elvira Freeman was Dean of Women at the newly foundation University of Chicago. (93.8)

　　[谜底] D foundation 改为founded 曩昔分词作定语，润色University of Chicago

　　5. 由暗示词性的后缀- fur ,-tie -enc., -ent,-tive都很可能是此题的考试焦点

　　全真例题剖析

　　(1) Few theories are originality enough to be called unique. (92.10)

　　[谜底] C 名词originality应改为形容词original 作表语。

　　(2) Height, powerful and speed are attributes that coaches often look for in basketball players. (93.8)

　　[谜底] A 形容词powerful应改为名词power，与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)

　　[谜底] D 名词dependence 应改为形容词dependent, 用来润色后面的名词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)

　　[谜底]A 形容词deficient改为名词deficiency。作趾笫览ヒ幔

　　(5) In nature, the distributive of plants is obviously related to climate. (90.8)

　　[谜底] B 形容词distributive 改为名词distribution ，用趾笫览ヒ幔

　　(6) A foreign exchange rate is a price that reflects the relative supply and demand of difference currencies. (93.5)

　　[谜底] D 名词difference改为形容词different，润色后面的名词。

　　上面就是关于词性变化的解析。考生们切记要搞懂，理顺了脉络，做起题来才会得心应手。掌握好语法是关键。另外，生们要记住一点，万变不离其宗，不要换个样子就不会了，活学活用贯穿始终。祝考生考出理想成绩。

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