(二)行为、过程作主语(operation or process)
Careful comparison of both will show you the differ-ence.仔细对照你就会发现它俩的区别。His unexpected arrival alarmed all of us.他不期而至,我们都很惊讶。Understanding howHIV changes itself could lead to avaccine against it.了解HIV如何改变自己,人们就能发明出一种对付它的疫苗。The discovery of new species will lead to new drugs.发现新的物种后就可以研制新药。Reading the magazines putmany newthoughts intomyhead.阅读那些杂志使我了解了许多新观点。
(三)思想、感情作主语(feeling or thought)
dreary depression seized him ，英语论文，英语论文 | 
