常用虚拟的词语一些形容词后的that从句中用should+动词原形,should可以省略的虚拟语气,用于这种结构的形容词有:advisable,anxious,appropriate,better,compulsory,concerned,crucial,critical,desirable,eager,essential,fitting,imperative,important,impossible,improper,natural,necessary,obligatory,onlyfair,onlyjust,onlyright,preferable,proper,reasonable,urgent,vital,willing,etc.某些名词后的that从句中,这些名词有:advice,agreement,command,decision,decree,demand,desire,determination,insistence,motion,necessity,order,plan,preference,etc.某些表示建议,命令,请求,要求等动词后的THAT从句中,这些动词有:表示愿望的:desire,prefer,表示建议的:advise,move(提议),propose,suggest,recommend表示请求、要求的:ask,beg,insist,maintain,oblige,request,urge,表示命令的:command,decree,dictate,direct,order,stipulate表示决定的:decide,determine,resolve其他:arrange,deserve,intend,motion,promise