(完整word版)both-either-neither-none区别与练习.doc

both n either either all none 的用法 both ① 指两者“都”，表示肯定，后接 复数名词，作主语时谓语动词用 复数。反 义词是 neither。例句： Both of the sisters are students. ② 构成拾配 both.....and.....表示两者兼有。例句： Both Lucy and Lily are stude nts . either ① 指两者中的“任何一个”，作主语时谓语动词用 单数。例句:Either of the studentsis clever. Either of them likes football. ② 构成拾配either…or…表两者中任意一者。意为”或者 或者 ；不 是……就是……"。表示两者之一。当连接两个主语时，谓语遵循 就近原 贝V。 例:Either you or he is student. Either you or I am student. n either ① 指两者“都不”，表示否定，作主语时谓语用单数。 例句： Neither of the students is clever. Neither of them likes football. ② 构成拾配neither…nor…表示两者都否疋（既不…,也不…），当连接两 个主语时，谓语应遵循 就近原则。例如：Neither I nor she is at home. Neither she nor a m at home. all 指三者（或三者以上）“全部都”，表示 肯定，后接可数名词复数（作主 语时谓语动词用复数）和不可数名词（作主语时谓语动词用单数）。反义 词是 none。例： All of the students are in our class. none 指三者（或三者以上）“都不，没有一个”，表示否定。作主语时谓语动 词用单数或复数 都可以。例：None of the students are/is in our class. 注意：表示两者关系的用 both, either或neither 表示三者或三者以上关系的用 all或none 区分下列句子： He has two sons. Both of themare clever.他有两个儿子，都很聪明。 He has two sons. Either of themis clever.他有两个儿子，哪个都很聪明。 He has two sons. Neither of themis clever.他有两个儿子，两个都不聪明。 He has three sons. All of themare clever.他有三个儿子，都很聪明。 He has three sons. Any of themis clever.他有三个儿子，哪个都很聪明。 He has three sons. None of thenare clever.他有三个儿子，个个都不聪明。 注：以上连词连接主语时，both…and…一般只与复数谓语连用，either or…和neither…nor ••则通常根据就近原则，要求谓语动词与最邻近主语的人 称、数保持一致。女口： Neither I nor she is at home. =Neither she nor I am at home. 我和她都不在家。 Either I or my brothers are coming. =Either my brothers nor I am comi ng不是我父亲就是我兄弟要来。 若要对either...or…句型进行否定时，只需把 either...or..换成 n either... nor..即可。例如： Either you or she is good at draw ing 变为否定句应为： Neither you nor she is good at draw ing 你和她都不擅长绘画。 若将 neither...nor..句型变为肯定句，只需把 neither...nor..改为 both...and... 即可，同时谓语动词必须用复数形式。例如： Neither dad nor mum is at home today. Both dad and mum are at home today今 天父母都在家。 Exercises: 一、用正确的词填空。 1、 He has two uncles . of them are doctors. 2、 Which do you prefer ,the red one or the blue one ? is OK. I don 'care . 3、 of the