Question

order用于虚拟语气时后面的should可省略吗？

Answer 1

　　1.在表示建议,要求,命令,想法的动词后的从句里,用should + 动词原形,should 可以省略.如
advise,agree,command,decide,demand,determine,grant,indicate,insist,order,prefer,propose,request,require,stipulate,suggest,urge,vote.
常考到的是:suggest,advise,demand,require,propose,insist,order,request.

　　His doctor suggested that he (should) take short leave of absence.

　　The author proposed that TV (should) be turned off at least one hour every
day.

　　2. 在表示建议,要求,命令,想法的名词后的从句里,用should + 动词原形,should可以省略.如
advice,decision,agreement,command,decree,demand,determination,indication,insistence,order,preference,proposal,request,requirement,stipulation
etc.

　　It was Bill’s suggestion that everyone (should) have a map.

　　His suggestion was that everyone (should) have a map.

　　He gave us a suggestion that everyone (should) have a map.

　　3. 在It is/was +形容词后的that 从句中用should的结构,should
可以省略.这类形容词常见的有:advisable,anxious,compulsory,crucial,desirable,eager,essential,fitting,imperative(绝对必要),impossible,improper,important,natural,necessary,obligatory,possible,preferable,probable,recommended,urgent,vital
etc.

　　It‘s natural that she (should) do so.

　　It is essential that we (should) tell her the news.

　　4.在 lest 和 for fear that(以免),in case(以防)从句中用should,should 可以省略.

　　She walked quietly lest she (should) wake up her roommates.

　　Have your gun ready in case we should need it.