1、代词及be动词
主格 I we you you she/he/it they
宾格 me us you you her/him/it them
代词所有格 my our your your her/his/its their
名词性代词 mine ours yours yours hers/his/its theirs
be动词现在时 Am are are are is are
be动词过去时 was were were were was were
2、名词的复数
规则变化的名词复数形式
规则1 一般情况+s e.g. shell→shells toy→toys
规则2 以s, x, ch, sh结尾+es e.g. fox→foxes church→churches
规则3 以o结尾+s或+es e.g. radio→radios potato→potatoes
规则4 以f, fe结尾的,变f, fe为ves e.g. life→lives half→halves
规则5 以辅音字母+y结尾, 变y为i+es e.g. sky→skies study→studies
动词(verb)是表示动作或状态的词,例如:sign(签字),support(支持),have(有),exist(存在)等。
动词根据起意义和作用可分为实义动词、系动词、情态动词和助动词。
实义动词有完全的词义,并能独立作谓语,例如:explain(解释),stay(停留),have(有)等。系动词作谓语时,后面需接表语。常见英语系动词有:be(是),seem(似乎),look(看起来),become(变成),appear(显得),get(变得),feel(感到),turn(变成),remain(仍然是)等。
情态动词表示能力、义务、必要、猜测等说话人的语气和情感。情态动词只能和原行动词一起构成谓语动词。英语情态动词主要有can(能够),may(可以,也许),must(必须)及其过去形式could, might等。
助动词常和主要动词一起构成各种时态、语态、语气等动词形式,以及用于否定和疑问等结构中。英语助动词主要有shall, will, have, be, should, would, do等。
实义动词还可根据是否需要宾语分为及物动词和不及物动词。
及物动词(transitive verb)后面要跟宾语,意义才完整。例如:
You muxt consider the matter carefully.
你一定要仔细考虑这件事。(the matter是及物动词consider的宾语)
Have you received the letter?
你受到了那封信吗?(the letter是及物动词receive的宾语)