问题
选择题
In order to improve English, ________________.
A．Jenny’s father bought her a lot of tapes
B．Jenny bought a lot of tapes for herself
C．a lot of tapes were bought by Jenny
D．a lot of tapes were bought by Jenny’s father
答案
答案：B
主要测试主谓一致。错因分析考生很有可能误选A项或D项。其实，in order to improve English可以看成是to improve English的变形，根据语法知识可知，主句的主语为人，选项C和D可以首先被排除。再由句意可知，选项B为正确答案。动词不定式的逻辑主语为执行不定式to do这个动作的人或物。动词不定式的逻辑主语可以是句子的主语、宾语，有时还可以是介词for或of的宾语。如：Jack is late again. It is typical of him to keep others waiting.
