B. That 引导的主语从句,当连续读到两个谓语动词(e.g. Helps is),而空格在句首,应首先考虑主语从句。这是主语从句典型的句子结构。 动词不定式及动名词要点解析
动词不定式和动名词在TOEEL测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。命题焦占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。不定式和动名词常考题型 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)
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)
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)
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)
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