(2)形容词的比较等级
单音节词和少数双音节词,在词尾加(e)r,(e)st来构成比较级和最高级。其他双音节词和多音节词,在前面加more,most来构成比较级和最高级。如:
popularmorepopularmostpopular
importantmoreimportantmostimportant
(3)副词的比较等级
单音节副词和个别双音节副词通过加-er,-est来构成比较级和最高级。绝大多数副词借助more,most来构成比较级和最高级。
(4)少数形容词和副词比较级/最高级的不规则变化:
原级比较级最高级
wellbetterbest
badlyworseworst
muchmoremost
littlelessleast
farfartherfarthest
farthestfurthest
latelaterlatest
(5)副词的最高级前面可以不加定冠词the。
6.介词
(1)表示时间的介词及介词短语
in,at,on,before,after,till,since,for,fromto,until,by,inthemiddleof,atthebeginningof,attheendof,athalfpastfive,atnight,inaweek,inthemorning,inclass,atsunrise,inspring/summer/autumn/winter,onSunday,onSaturdayafternoon,onawinterevening,foralongtime,fortwomonths,afterschool,sinceliberation,beforelunch,atthetimeof,attheageof
(2)表示地点的介词及介词短语
in,at,into,to,on,beside,before,behind,above,under,outside,inside,up,from,far,from,near,across,off,down,among,past,between,outof,around,inthefrontof,inthemiddleof,atthebackof,atthefootof,athome,atthegate,atthetable,inthesky,ontheground,inatree,inthesouth,inthesun,inthebed,ononeswayhome,bythesideof
二.八种基本时态
1.一般现在时
概念:表示经常发生的动作或经常存在的状态。
常和always,often,usually,sometimes,everyday等表时间的状语连用。
如:1)Igotoschooleveryday.我每天都去学校。(表经常)
2)Heisalwayslikethat.他总是那样。(表状态)
构成:1)主语+be(am/are/is)+
2)主语+实义动词/三单动词+