小学英语笔记汇总.doc

小学英语语法汇总一、/…usually第三人称单数的变化情况:1.     一般情况在词尾直接加-s2.      以ch,sh,s,x或o结尾的词加-es(wishes),将y改成i再加-es(flies):-,去掉e再加-ing(skating),双写最后一个字母加-ing(swimming):--d(lived),将y改成i再加-ed(flied),双写最后一个字母加-ed(stopped)一般将来时表示将要发生的事情tomorrowthedayaftertomorrow/thenextday/Monday…attheweekend/tonighttomorrownight/morning/afternoon主要构成begoingto/will+动词原形            be+形容词凡是在must,mustn’t,can,can’t,let’s,don’t,may,will后的一定要用动词的原形二、名词的复数。 名词按其数,可分两种:可数名词和不可数名词.  可数名词的复数变化规则:,直接在词尾加-s,如:girl-girls,book-books,pen-,x,sh,ch结尾的词,在词后加-es,如:class-classes,box-boxes,match-matches,+y结尾的,变y为i再加-es,如:city-cities,family-families,country-,变f或fe为v再加-es,如:knife-knives,wife-wives,life-lives,-es或-s,如:radio-radios,tomato-tomatoes,potato-potatoes,zoo-zoos,photo-photos,-men,woman-women,foot-feet,child-children,三、形容词的比较级、最高级。   形容词有比较级与最高级之分,单音节词的变化规则:,直接在词尾加-er或-est,如:small-smaller-smallest,short-shorter-,加-er或-est,如:large-larger-largest,nice-nicer-+y结尾的,变y为i再加-er或-est,如:busy-busier-busiest,heavy-heavier-,一个辅音字母结尾的,双写该字母,再加-er或-est,如:big-bigger-biggest,thin-thinner-,前加more,most,如:beautiful-morebeautiful--better-best四、be动词,助动词。现阶段be动词形式有:am,is,are,were,was,isn’t,aren’t,weren’t,wasn’t助动词形式有:do,does,did,don’t,doesn’t,didn’t※   ,有be动词的就在be动词上变化,变“过去”,“否定”;        否定                                  过去    否定am-------amnot(第一人称“I”)     am,is---wasn’tis-------isn’t (第三人称)              are -----weren’tare------aren’t (you和其它人称) ;                    否定         过去    过去否定do               -----don’t  ------did---------didn’tdoes(第三人称单数)-