Complement1.动词elect,call,name,make,find,leave等后面常接名词用作主语补足语。例如:①ThedogiscalledKarl.②Coalissometimescalledstored-upsunlight.③Hewasfoundtherightmanforthejob.2.动词keep,make,paint,cut,burn,beat,wash,find,consider,wipe等后面常接形容词用作主语补足语。例如:①Thedoorwaspaintedwhite.②Theoldmanwasfoundweak.③Theclassroomisalwayskeptcleaneveryday.3.动词see,watch,hear,feel,listento,lookat,imagine等后面接分词用作补足语。例如:①HeisoftenheardreadingEnglish.②Theprofessorwasseenmakinganexperimentinthechemistrylab.③Theglasswasfoundbroken.④Theclassroomwasfoundcrowdedwithpeople.4.感官动词see,watch,hear,notice,feel,make等后面接带to的不定式用作主语补足语。例如:①Hewasseentocomeupstairs.②Iceisknowntobeinasolidstate.③Thespywasorderedtobehanged.5.介词短语用作主语补足语。例如:①Thebooksinthestudymustbekeptingoodorder.②Hewasfoundingoodhealth.③Englishisconsideredofgreatimportanceforus.6.as后面接名词、形容词、分词等用作主语补足语。例如:①Englishistakenasausefulmeansforresearchwork.②Thenewsisconsideredastrue.③Thestoolisusuallythoughtashavingfourlegs④Thevaseisthoughtasbroken.7.由what引导的名词性从句用作主语补足语。例如:Theboyhasbeenmadewhatheis.