雅思写作中逻辑主语的用法

  　1 不定式to do， in order to do something

　　In order to attract visitors， historic buildings should be maintained.

　　错误的原因：历史建筑是没有生命的，不可能有“in order to”

　　正确的句子：In order to attract visitors， city councils should maintain historic buildings.

　　2 when， while， before， after

　　等连词引导的现在分词例句：When communicating with others， patience is important.

　　错误的原因：communicating

　　这个分词的主语是人，不可能是patient

　　正确的句子：when communicating with others， one should show patience.

　　3 by+doing例句：By setting rules， children can reduce behavioural problems.

　　错误的原因：setting rules的主语不是children正确的句子：By setting rules， schools can reduce behavioural problems.

了解更多英语考试相关信息,请关注南京托福培训学校