常见的系动词大致可分为三类.
第一类:表示特征或状态的,有be,look,feel,seem,appear,smell,taste,sound,turn,out(结果是、证明是)等.
You”llbeallrightsoon.
Youdon”tlookverywell.
Ifeelrathercold.
Heseemstobeill.
Itappearsthatheisunhappy.
第二类:表示从一种状态到另一种状态的变化,有become,get,grow,turn,fall,go,come,run等.
Hebecameaworld-famousscientist.
Itisgettingwarmerandwarmer.
Itgrewdark.
Thefoodhasturnedbad.
Yesterdayhesuddenlyfellill.
第三类:表示保持状态的,有keep,remain,continue等.
Keepquiet,children!
Theweathercontinuedfineforalongtime.
Itremainstobeproved.
系动词后的表语可以是名词、代词、数词、形容词、分词、动名词、不定式、副词、介词短语、词组、从句,系动词be可用于上述所有情况.如:
Thepepoplearetherealheroes.(名词)
That”ssomethingwehavealwaystokeepinmind.(代词)