牛津版 选修6 Unit 3 Understanding each other Grammar课件（共19张PPT）.ppt

unit3understandingeachotherwordpowerenglishwordsborrowedfromotherlanguages review asstrongasahorse verystrong asbusyasabee veybusy aspoorasachurchmouse ascoolascucumber verycalm tosleeplikealog tosleepverydeeply englishwordsborrowedfromotherlanguages ifihadfivemillion i brainstorming grammarandusageunrealconditionals lead in k n d n l n 条件句 条件语adj 有条件的 假定的 definition 条件句 真实条件句 在真实条件句中 要用陈述语气 非真实条件句 非真实条件句中才用虚拟语气 definition unrealconditionals anunrealconditionalisastatementaboutanunrealorimaginaryconditionorsituation 1 weuseunrealconditionalstostateanimaginarypresentcondition 虚拟条件句来表示对现在情况的假设 icouldreachthebookifiwereabittaller ifihadthechance imightwanttobeabusinessconsultant ifihadmoney i buy acar would could mightbuy definition unrealconditionals 2 wealsouseunrealconditionalstorefertoanimaginarypastaction 虚拟条件句来表示对过去情况的假设 ifyouhadjoinedthechatroomtenminutesago youwouldhaveknownwhatweweretalkingabout ifthemanhadpointedwithhisfirstfingerwhenhewasinbrunei everyonewouldhavethoughtthathewasveryrude ifhehadtakenmyadvice he notmake suchabadmistake mightnothavemade unrealconditionals unrealconditionals 3 weuseunrealconditionalstotalkaboutanimaginaryfutureaction 虚拟条件句来表示对将来情况的假设 ifihadtimetomorrow iwouldcertainlyhelpyou ifit rain tomorrow iwouldnottothere rained if was were did would should could mightdo unrealconditionals if was were did would should could mightdo if hadbeen done would should could mighthavedone 4 weusuallyformunrealconditionalslikethis 1 2 3 4 5 6 7 8 9 10 attended went would mightbe would mightsee would couldbe did hadtravelled wouldhavetotake wouldnothaveneeded travelled exercise unrealconditionals 虚拟条件句的注意事项书面英语或正式场合 if条件句中的was通常用were代替 在日常会话中 was也常用 ifhewas werehere hemightbeabletohelpus 2 对将来情况的假设 if条件句中可以用wereto或者should ifiweretofailmymathstests iwouldhavetotakeitagainattheendoftheterm ifheshouldcometomorrow icouldtalktohimaboutit unrealconditionals unrealconditionals 虚拟条件句的注意事项3 should were had可提到虚拟条件句的句首 if不需要 shouldyoumakeamistake youshouldnotbeembarrassed wereyoutotakethetrain youwouldgettheremuchsooner hadyoutoldmeearlier iwouldnothavegotintotrouble 4 虚拟条件句中 if条件句中可以用 couldhavedone ificouldhavetoldyouaboutculturaldifferencesbetweenitalyandtheuk iwouldhave unrealconditionals mygrandpa sifs1 ifhe rich hewouldhavetravelledalot 2 he intoauniversity hewouldhavestudiedmedicine 3 he achancetogoabroad hewouldhavetakenit 3 he achancetogoabroad hewouldhavetakenit 4 he ashappyasheisnowifhehadhadmoreeducationwhenhewasgrowingup exercise had hadbeen got had had if hadhad would havebeen definition 条件句 真实条件句 在真实条件句中 要用陈述语气 非真实条件句 非真实条件句中才用虚拟语气 有时非真实条件句中 主句谓语动词所表示的动作和条件从句中谓语动词所表示的动作并不同时发生 这时动词的形式并不完全按照上述表格来进行 而需要按照各自的时间来调整 这样的句子就叫错综时间条件句 错综时间条件句 definition ifyouhadfollowedthedoctor sadvice thenyouwouldbeallrightnow ifihadn tfinishedmycompositionbynow iwouldbeworkingonittomorrow ifshehadpreparedwellforherlessonsyesterday shewouldn thavesomanydifficultiesnow 有时一个假设的情况并不用条件从句表示 而用其它方式来表示 这样的句子叫含蓄条件句 用with without butfor等介词短语或用but or otherwise等副词或连词 来代替条件从句 含蓄条件句 definition 1 wemighthavediedifyouhadn thelpedus wemighthavediedwithoutyourhelp 2 ifwehadknownintime wecouldhavestoppedit havingknownintime wecouldhavestoppedit 3 ifithadnotbeenforyourhelp iwouldn thavebeensuccessful butforyourhelp iwouldn thavebeensuccessful should 动词原形 should可以省略 demand suggest advise propose insist order request desire urge deserve recommend intend等词后所跟的宾语从句中 theexperimenthadfailed isuggestyou should