pairoftrouserswassoldout.■“分数(百分数)+of+名词”以及“all(most,some,any,half,alot,part,therest)+of+名词”做主语时,谓语动词的数与of后的名词的数一致。如:Three-fourthsofthesurfaceoftheearthiswater.Twentypercentoftheorangesarebad.Allofmyclassmateslikemusic.Allofthewaterisgone.Therestofthestudentshavegonehome.Therestofthemoneywasstolen.■“a(the,this,that)kind/sort/typeof+名词”做主语,谓语用单数形式;但“these(those,all,many,some)kindsof+名词”做主语,谓语则用复数形式。如:Thiskindofbookisusefulforus.Manykindsofshoesareonsaleinthatshop.注:“名词+ofa(the,this,that,these,those,all,some,many等)+kind(s)”做主语,谓语动词的数与前面名词的数一致。如:Bookofthiskindisusefulforus.Applesofthesekindsaresour.■在主谓倒装的句子中,谓语动词的数应与其后的主语一致。如:Onthewallhangtwolargeportraits.Betweenthetworowsoftreesstandstheteachingbuilding.6、复合句易错题Doyouhaveanything______youwanttosayforyourself?Youshouldhandinall______youhave.