托福考试冠词使用技巧解析
2012-01-04 533出国留学网 rain
托福考试冠词使用技巧解析。有关冠词的考题在TOEFL测试中所占比例较小，但出现频率较高，而且是单一题型反复再现，即不定冠词a和an混淆错用。这类题目全部集中在Written Expression(16-40题)中。其次，定冠词the的用法也是考试范围。
1.不定冠词a与an的区别
解题要点 “a”后面接以辅音开始的字词“an”后面接以元音开始的字词。当A、B、C、D四个选择答案中出现http://ty.533.com有a或an，应首先察看它后面的单词，以判断此不定冠词是否正确。
全真例题分析
（1） The Montreal International Exposition,“Expo. 67”was applauded for displaying an degree of taste superior to that of similar expositions.
(答案) B 改为a degree。
（2） If a atom loses any of its electrons, it becomes positively charged and can combine chemically with other atoms.
(答案) A改为an atom
（3） Since the beginning of this century the United States government has played an role in the supervision and use of the nation’s natural resources.
(答案) A改为a role
（4） A electric current can consist of charges that are positive, negative, or both.
(答案) A 改为An election
