既可作介词也可作副词的词

ineg.heis'tin.(副词)Heisintheclassroom.(介词)oneg.putyourcoaton.(副词)ItisonMonday.(介词)offeg.thetownisfivemilesoff.(副词)takeabookofftheshelter.(介词)aboveeg.myroomisabove.(副词)Thesunroseabovethehorrizon.(介词)overeg.Ihavetenyuanover.(副词)runoverthegrass.(介词)许多词既可作介词又可作副：Hegotoffthebusatthecorner．（介词）他在拐角处下了公共汽车。Hegetoffatthecorner．（副词）他在拐角处下车。考试大论坛这些既可作介词又可作副词的词中最重要的有above，about，across，along，before，behind，below，besides，by，down，in，near，off，on，over，past，round，since，through，under，up：Theywereherebeforesix．（介词）他们6点之前在这里。Hehasdonethissortofworkbefore．（副词）(Examda)他以前干过这种工作。Peterisbehindus．（介词）彼得在我们的后面He′salongwaybehind．（副词）他远远地落在后面。Sheclimbedoverthewall．（介词）她爬过墙头。Whenthemeetingwasoverthedelegateswenthome．（副词）会议结束后代表们各自回家了。（这里over=finished结束）Theshopisjustroundthecorner．（介词）商店拐过街口就是。Comeround（tomyhouse）anyevening．（副词）晚上有空来我家串门。Heranupthestairs．（介词）他跑上楼梯。Hewentupinthelift．（副词）他乘电梯上去了。这些词中许多可以用来构成短语动词Theplanetookoff．（副词）飞机起飞了。（离开了地面）