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1、教学案科口：英语主备人：备课H期：课题M6Unit4Grammarandusage笫8课时计划上课口期：教学目标1.Havestudentsknowthedifferentkindformsofunrealconditions;2.Havestudentsgrasptheusageofunrealconditions.教学重难点Havestudentsusewhattheyhavelearnedtodoexercisescorrectly.教学流程内容板书关键点拨加工润色Stepl:Greetings.Step2:虚拟语气表示说话人的主观愿望、猜测建议或与事实不符的假设。虚拟语气可分为三种
2、：(1)一般虚拟(2)混合虚拟(3)特殊句式Step3:Theexplanationsoftheusageofunrealconditions一.一般虚拟的构成：(省略if,要将should/were/had提到句首)(1).对现在的虚拟:If+S.+did/weresth.,S.+would/could/should+doIfIhadtime,Iwouldattendthemeeting.IfIwereyou,Iwouldseizethechancetogoabroad・(2)对过去的虚拟：If+S・+had+p.p,S.+wou1d/cou1d/shou1dhave+p.pIfyouhad
3、takenmyadvice,youwouldnothavefailedintheexam.(3)对将来的虚拟：Tf+S.+did/were/shoulddo/weretodo,S+would/should/coulddosth・Ifyoucametomorrow,wewou1dhavethemeeting.Ifitweretoraintomorrow,thesportsmeetingwouldbeputoff・Ifheshouldnotcometomorrow,weshouldputoffthemeetingtillnextday.注意：Hadwemadegoodpreparations,we
4、mighthavesucceeded・Haditnotrained,wewouldhavegoneoutforawalk・WereTyou,Twouldnotdosuchathing.二.混合虚拟：(1)不同时间的虚拟：Ifhehadlistenedtome,hewouldnotbeintroublenow.Ifhehadtoldmeyesterday,Ishouldknowwhattodonow.(2)虚拟与陈述的混合：Hecouldhavepassedtheexam,buthewasn"tcarefulenough.Youshouldhavecomeearlier,thebusleftam
5、omentago.三.特殊句式：(1)・suggest,advise,recommend,propose,order,command,request,require,demand+that-clause(shoulddo/do)Hesuggestedthatwe(should)savemoneyforthefuture-(insist的判断)(2)Itissuggested/advised/ordered/requested/requiredthat-clause(shoulddo/do)(主语从句)(3)Myadvice/suggestion/requcst/requiremcntistha
6、t-clause(shoulddo/do)(表语从句)Hissuggestion/advice/request/requirementthat-clause(shoulddo/do)is…(同位语从句)(4)Ttisnatural/necessary/strangethat-clause(shoulcldo/do)表惊奇、怀疑、惋惜、不满、理应如此等。It，sstrangethatheshouldhavemissedthetrain.(表竟然)Itisimportantthatweshouldlearnfromothers.(表理应如此)Itisapitythatheshouldnotgowi
7、thus.(表惊讶、不满)(5)wish+thatclause(did/were与现在相反)wish+thatclause(wou1d/cou1d/might+do与将来相反)wish+thatclause(haddone与过去相反)IwishIcouldgowiththemtomorrow・TwishThadnevermethim.(6)Itis(high/about)time+clause(d
