主動表示被動：某些感官動詞和系動詞加形容詞可以表示被動意義，如look,smell,taste,feel,prove,wear,sound等Theflowersmellssweet.Thedishtastesdelicious.Theclothfeelsverysoft.Thestoneshavewornsmooth.2.某些及物動詞后加副詞（有些可不加副詞）也可以表示被動意義，如wash,write,sell,read,open,cut,lock,peel,pack,play,shut,spot,split,strike,record,act,clean,draw,iron,keep,photograph等Thistypeofrecordersellswell.Thatkindofshirtwashesverywell.Ripeapplespeeleasily.Theplayswon’tact.Nylondriesquickly.6)Thenovelreadswell.7)Thedooropenswithdifficulty.8)Thewoodwon’tburn.9)Waterheatsrapidly.10)Thiskindofshirtcleanseasily.11)Hercoatcaughtinthedoor/onthenail.比較：1.Theboxdoesn’tlock.

這個箱子鎖不上。（箱子本身的性質）2.Theboxwasnotlocked.

這個箱子沒有上鎖。（箱子當時的狀態(tài)）3.Thetheoryprovedtobecorrect.

那個理論證明是正確的。（含有自身證明的特征）4.Thetheorywasprovedtobecorrect.

那個理論被證明是正確的。（被人證明）3.want,deserve,need,require,repay,stand,take,won’tbear和worth等詞的后面可以用動名詞的主動形式表示被動意義。Thebookisworthreading.Thispointdeservesmentioning.Thecoatrequiresmending.Thechildrenneedslookingafter.Thetablewantscleaning.Therulewilltakesomelearning.Thatwon’tbearthinkingof.那是不堪想象的。這規(guī)則需要下點功夫才能學會。某些作表語(expensive,cheap,difficult,fit,hard,light,heavy,easy,的形容詞后，用不定式形式表示被動意義。Theboxistooheavytolift.Sheiseasytoapproach.Thefishisnotfittoeat.Heishardtoplease.Thepassageisdifficulttoread.Thejewelistooexpensivetobuy.Therearealotofworktodo/tobedone.Therearealotofworkforus

todo.I