【语法基础】新考托语法之动词不定式

虽然动词不定式和动名词在托福考试中不算是太大部分的考题，但是关于这类语法的出题频率还是比较稳定的。其中命题点主要集中在动词不定式和动名词的基本功能及正确形式，即(1)不定式to后面接原形动词，(2)动名词具有动词和名词两重功能，介词后面的动词必须以动名词形式出现。请看下面动词不定式题型：

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. (91.1)

[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。

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