托福语法之动词不定式及动名词要点解析

　　对于托福的语法学习来说，掌握正确的方法显得尤为重要。那么，在托福考试的过程中，我们应该如何准备自己的语法练习呢？动词不定式和动名词在托福考试中不算活跃的考题，但出题频率比较稳定，即不频繁，亦无间断。所以对于其掌握的重要性也是尤显重要，下面就为大家用几道真题来详解，动词不定式及动名词的使用。

　　1. 不定型工to后面接原形动词

　　全真例题分析

　　(1) Astronauts circling the Earth may get to seen sixteen sunrises and sixteen sunsets every day. (93.8)

　　[答案] C 动词不定型式的标志to后面应接动词原形see。

　　(2) Using their bills as needles, tailorbirds sew large leaves together with plant fiber to forming their nests. (90.10)

　　[答案] D to forming应改为to form正确的不定式形式。

　　(3) The poetry of e.e cummings illustrates the way in which some poets bend graminastical rules as they strive to expression their insights. (91.10)

　　[答案] D动词不定式to后面只能接原形动词，不能接名词。

　　(4) The dromedary camel is raised especially to racing.

　　[答案] D这是一个非常简单的动词不定式错误形式的考题。Recing应改为race,与to组成不定式。

　　2. 动词不定式作目的状语

　　解题要点 不定式结构在句中可以作多种成分，目的状语则是TOEEL常考到的形式。动词不定型式作目的状语的命题主要分布在structure (1－15题）中。

　　全真例题分析

　　(1) A fuel is a substance used ------- light, heat .or energy .

　　(A) generating

　　(B) generates

　　(C) to generate

　　(D) it is generating

　　[答案] C 根据句意及结构，此句固选择动词不定式作目的状语。

　　(2) ------ stereophonic phonograph records, two recordings are made of the same musical performance.

　　(A) Creates

　　(B) Created

　　(C) The creating of

　　(D) To create (92.10)

　　[答案] D 这是典型的不定式作目的状语的句子。目的状语放在句首是表示强调。

　　(3) ------- time and labor, cartoonists generally draw the hands of their characters with only three fingers and a thumb.

　　(A) Saved

　　(B) Saves

　　(C) To save

　　(D) The saving (91.5)

　　[答案] C 此句与上面例题结构相同。不定式作目的状语，且放在句首表示强调。

　　3. 动名词的正确用法

　　解题要点有关名词的考题并不很多，但有一个常出现的题型；介词后面的动词一定要用动名词形式，作介词的宾语。

　　全真例题分析

　　(1) Microwave cooking can be accureately described as the first absolutely new method of prepare food since the discovery of fire (94.1)

　　[答案] C 介词of后面应接动名词形式，即of preparing。

　　(2) Most crickets have two pairs of fally developed wings, and mascular hind legs for iump. (94.1)

　　[答案] D 动名原形jamp位于介词for后面，故应改为动句词jamping。

　　(3) Because it is a healthful way to exercise derobic dancing is considered an excellent method for release tension. (93.1)

　　[答案] D 动名词原形release位于介词for后面，故应改为动名词releasing。

　　(4) The Cubist movement in art was reaction against traditional methods of portray reality. (90.5)

　　[答案] C 动词原形portray应改为动名词portraying即作前面介词of的宾语，自身又带宾语reality。