2016年江西成考专升本英语动词不定式归纳1

　　动词不定式的用法

　　不定式结构作主语

　　1、不定式前置

　　1） Derive [A] mineral resources from [B] sedimentary rock [C] is a [D] major modern industrial activity.

　　2） in the matriculation for postgraduate in a short time is realy a hard nut.

　　[A] To make high scores[B] To make low goal[C] To the high scores[D] Make the low goals

　　2、上述形式一般情况不多见，作为考试的规范英语，如果不定式较长，显得头重脚轻,则可由代词“it”作形式主语（形式主语“it”不能由“that”或“this”等其他代词代替），而将不定式放到后面

　　It is really a hard nut to get high scores in the matriculation for postgraduate in a short time.

　　3） John admitted that it's always difficult.

　　[A] for him being on time[B] being on time for him

　　[C] for him to be on time[D] on time for him

　　4） It is difficult for me [A] to be concentrating [B] while someone [C] is using [D] a vacuum cleaner.

　　3、不定式后置的情况不仅限于动词是系动词，也适用于其他动词

　　It took us a great deal of efforts to finish that task.

　　It made him extremely happy to get contact with his family in Taiwan since they separated more t