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,Will/begoingto,Unit4,Findoutthedifference,;nowtherearearound50millionandthisgrowthisclearlygoingtocontinue.,“itisclearthatwearegoingtoseeahugegrowthinshoppingontheinternet.“PersonallyIthinkvirtualrealitywillbecomeapartofmodernlife,”“wewillworkinvirtualoffices,shopinvirtualsupermarket,andwewillevenstudyinvirtualschool.”,Findoutthedifference,Whichsentence?Talksaboutafutureeventwecanpredictfromapresentsituation?(陈述根据目前状况可以推测出的未来结果)Expressouropinionsaboutthefuture?(陈述我们对未来的看法和观点),summary,Will和begoingto均可表示将来的事情，表示说话者的意图、打算。如：Iamgoingto/willattendameetinginBeijingnextweek.下星期我要去北京开会。,两者的区别：表示意图时：begoingto表示经过事先考虑的意图；will表示说话人临时的决定。如：I_towatchafilmwithmydaughtertonight.Tomjustphonedtotellmehewasinhospital.I_gotoseehim.,amgoingto,will,2.表示预测时：begoingto表示有迹象表明或根据主观判断将来肯定会发生的事情；will表示说话人相信或认为某事将要发生或是客观上将来势必会发生的事情。如：Heisseriouslyill.He_die.(根据已有迹象)He_betwentyyearsoldnextyear.（客观上将来势必会发生的事情）Everythingischanging.You_surelychangeyourmindlater.(说话人相信将来发生的),Isgoingto,will,will,3.表示时间时：Begoingto表示即将、马上，相当快的将来要发生的事；will表示比这更远的将来要发生的事情。如：He_writehisfamilyalettertonight.He_writeabookoneday.,isgoingto,will,4.表示征询对方意见，往往带有请求的意思。此时用于疑问句，只能用will.如：Willyoutakemetohisbirthdayparty?,学以致用,用begoingto和will填空：MaryandKen_getmarriednextweek.Myson_beninethistimenextyear.Ifyoudonthurryup,you_misstheearlybustocity.Lookattheclouds!It_rainsoon.,aregoingto,will,will,isgoingto,翻译：我相信我会找到一份好工作的。2.明天下午会有一场足球赛。,IbelievethatIwillgetagoodjob.,Therewillbe/isgoingtobeafootballmatchtomorrowafternoon.,虚拟语气在if引导的条件句中的用法,Objectives,Bytheendofthislesson,youwillbeableto:discoverthedifferencesbetweenthefirstandthesecondconditionalsandtheirrules.usethesecondconditionaltodescribeyouridealfuturelife.,Groupwork,Readthefirst17linesinthedialogueandfindallthesentenceswith“if”2.Whichtalksabout:UnlikelysituationsinthefuturePossiblesituationsinthefuture,Compare,Ifitrainsheavilythisweekend,well(saidinEnglandwhereitoftenrains)B.IfitrainedheavilyintheSahara(撒哈拉沙漠)，itwould.(thiswouldbemostunusual),Compare,Ifthereisanuclearwar,well(Thespeakerisapessimist.)Iftherewasanuclearwar,wewould(Thespeakerisanoptimist.),Summary,Whatisthedifferencebetweenthethesesentences?,一.语气和时态、语态一样，是动词的一种形式，表明说话者的目的和意图。英语中有四种语气：1.陈述语气：Theweatherisfine.2.疑问语气：Doyouhaveacamera?3.祈使语气：Comeinandhaveaseat.4.虚拟语气：IfIwereyou,IwouldforgiveMary.,二.虚拟语气在if引导的条件句中的用法条件句分为真实条件句和虚拟条件句。真实条件句所表示的假设是有可能实现的，而虚拟条件句所表示的假设不可能或不大可能发生。,用if引导的真实条件句这种条件句实现的可能性非常大(一般表示将来可能发生的事件)条件句用一般现在时，主句用一般将来时。e.g.IfIhavetime,Illcomeovertoseeyou.Ifitisfinetomorrow,wewillprobablygocamping.条件句用一般现在时，主句动词用情态动词。e.g.Ifyouhavetime,wecangoforawalkthisevening.,3)条件句用一般现在时，主句用祈使句，表示提出建议或请求。e.g.Ifyoufeelsleepy,gotobed.Ifshecomes,phoneme.2.用if引导的虚拟条件句虚拟条件句往往指不能实现的或纯假设的情况，可以对过去、现在或将来的进行假想，分别用不同的动词形式表示，主句谓语动词也相应地采取不同的形式。(以下只谈用if引导的虚拟条件句对现在及过去的虚拟。),1)对现在情况的虚拟对现在情况的虚拟，条件句中的谓语动词用一般过去时，主句用“would/should/might/could+动词原形”e.g.IfIwereyou,Iwouldchoosetoworkinasmalltown.(事实是我不是你)Iftheweatherwerefinenow,wewouldhaveapicnic.(事实是现在天气不好)特别提示：如果条件句中的谓语动词为be动词时，不管主语是单数还是复数，书面语一般都用were,2)对过去情况的虚拟对过去情况的虚拟，条件句中的谓语动词用过去完成时“had+过去分词”，主句用“would/should/might/could+have+过去分词”e.g.Ifyouhadcomeyesterday,youwouldhavemetMary.(事实是你昨天没来)Ifyouhadworkedhard,youwouldhavepassedtheexam.(事实是你当时没有努力),练习,翻译：1.我要是你就不会采纳他的建议。ifIwereyou,Iwouldnottakehisadvice.2.我要是看到Mary,我会把这个好消息告诉她。IfIseeMary,Iwilltellherthegoodnews.,
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