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1、虚拟语气从句中should可以省略的情况 1.在建议,要求,命令,想法后的动词后的从句（宾语从句）里,用should+动词原形,should可以省略。如： advise,agree,command,decide,demand,determine,grant,indicate,insist,order,propose,request,require,suggest.如： ⑴Hisdoctorsuggestedthathe(should)takeshortleaveofabsence. ⑵TheauthorproposedthatTV(should)beturnedoffatlea
2、stonehoureveryday. 2.在建议,要求,命令,想法后的名词后的从句（表语从句，同位语从句）里,用should+动词原形,should可以省略。如： advice,agreement,command,decision,demand,determination,indication,insistence,order,proposal,request,requirement,etc.例如： ⑴ItwasBill’ssuggestionthateveryone(should)haveamap. ⑵Hissuggestionwasthateveryone(should)h
3、aveamap. ⑶Hegaveusasuggestionthateveryone(should)haveamap. 3.在Itis/was+形容词（或名词）后的that从句中用should的结构,should可以省略。句型结构如：Itissuggested/important/demanded/necessary/apity/…+that…⑴Itissuggestedthatwe(should)holdameetingnextweek. ⑵Itisnecessarythathe(should)cometoourmeetingtomorrow. 这类形容词常见的有:advisa
4、ble,anxious,compulsory,crucial,desirable,eager,essential,fitting,imperative(绝对必要),impossible,improper,important,natural,necessary,obligatory,possible,preferable,probable,recommended,urgent,vitaletc.例如： ⑴It'snaturalthatshe(should)doso. ⑵Itisessentialthatwe(should)tellherthenews. 4.在lest和forfea
5、rthat(以免),incase(以防)从句中用should,should可以省略。例如： ⑴Shewalkedquietlylestshe(should)wakeupherroommates.⑵Haveyourgunreadyincaseweshouldneedit.1.大家把工作做好是很重要的。2.她现在很勤 奋，生怕英语不及格。3.小王建议放学后打篮球。4.要求两年内建成这座桥。
