4.当不定式短语,动名词短语或从句作主语时,表 示一个抽象的概念,谓语动词用单数。 eg.帮助别人就是帮助自己 Helping others is helping ourselves eg. To give is better than to take 给予比索取好 eg. Whether they will accept our invitation is still unknown 他们是否接受我们的邀请,现在还不知道
4. 当不定式短语，动名词短语或从句作主语时，表 示一个抽象的概念，谓语动词用单数。 eg. 帮助别人就是帮助自己。 Helping others is helping ourselves. eg. To give is better than to take. 给予比索取好。 eg. Whether they will accept our invitation is still unknown. 他们是否接受我们的邀请，现在还不知道
5. something anything everything nothing every either somebody anybody everybody nobody each neither someone anyone everyone no one等不定代词作主 语时谓语动词用单数 eg. Nothing in the world is difficult for one who sets his mind to it 世上无难事,只怕有心人 eg. Either of the shirts fits me perfectly. 两件衬衫中任何一件都很适合我穿。 当none作主语时,在现代汉语中谓语动词多用复数,但有时也用单数。 eg. None of us is/are afraid of difficulties 我们中没有人害怕困难
5. something anything everything nothing every either somebody anybody everybody nobody each neither someone anyone everyone no one 等不定代词作主 语时谓语动词用单数。 eg. Nothing in the world is difficult for one who sets his mind to it. 世上无难事，只怕有心人。 eg. Either of the shirts fits me perfectly. 两件衬衫中任何一件都很适合我穿。 当none作主语时，在现代汉语中谓语动词多用复数，但有时也用单数。 eg. None of us is/are afraid of difficulties. 我们中没有人害怕困难