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5Unit1Don’tcrossthatrope!位于楼上的adv.在楼上/向楼上adv.upstairs/teil/尾，尾巴n.tailagainsttherule违反规则introuble遇上麻烦，处于困境rule规则，法则n./ru:l/exhibition展览，展览会n./eksɪ'bɪʃn//ʌp'steəz/Newwordsandexpressions粗绳，绳索n.rope/daʊn'steəz/往楼下，在楼下adj.downstairsnowonder难怪，不足为奇missing找不到的,失踪的adj.Noentry禁止入内entry进入权，进入许可n./'entrɪ//rəʊp/punish惩罚，惩处v./'pʌnɪʃ/nogood不合适的，不方便的Noparking.Don’tturnleft.Nosmoking.signsWarmupNoentry.Noshouting.Nophotos.Don’ttouch.SignsaroundyouDon’tswim.Don’tdrink.Nofire.Don’tjump.ACHaveamatch:Doyouknow?1.Whichofthefollowingsignsmeans“NoBikes”?AB2.Whichofthefollowingsignsmeans“NoParking”?BC1.Whenyouseethesigninthesubway(地铁）,youmustn’t________.A.eatanddrinkB.drinkC.sleepA2.Whenyouseethissignontheroad,youarenotallowedto_____.A.killadogB.walkadogC.rideadogB1.表示“禁止做某事”的结构2.If从句（条件状语从句）1.Noshouting,please!请勿喧哗！Don’tcrossthatrope!不要越过那条绳子！Nophotos.请勿拍照。课文中的这些语句表达的都是“禁止做某事”的意思。要表达这一意思可以采用以下几种结构：1).No+动名词这是一种比较常用的表达方式。例如：Nojoking!不要开玩笑！Nosmoking.禁止吸烟。2).No+名词这种结构也可以表达“禁止做某事”的意思。例如：Noentry.请勿入内。Nophotos.禁止拍照。3).祈使句祈使句同样可以用来表示“禁止”。例如：Don’tmakeanynoise.不要吵闹。Keepoffthegrass.请勿践踏草坪。Don’ttouch.禁止触摸。Keepclearofthedoor.请勿靠近门。Readandobserve(观察)Turnleft!Turnright!Pleasegoupstairs!Godownstairs!Walkonthezebracrossing!Don’tsmoke!Don’tplayfootball!Don’tparkyourcar!Pleasedon’teat!Don’tpicktheflowers!Drawtheconclusion(得出结论)祈使句的结构如下：(Please)dosth.(Please)Don’tdosth.肯定：否定：祈使句的句型：Bequiet.Pleasehaveaseat.David,payattention.Don’tbeafraid.Pleasedonotmakeanoise.Alan,don’tbelate.1.动词+…2.Please+动词…3.人名+动词…肯定否定在动词前面加don’t否定1.下面哪个标语提醒我们禁止停车？_________A.NoSmokingB.NoLitteringC.NoParking2.Jim,_____meahand.A.givesB.isgivingC.willgiveD.give3.____careful,Jenny!Thereisatreeinfrontofyou.A.AmB./C.BeD.Was4.Let's____ourtime.A.notwasteB.nowastingC.nottowasteD.nowaste5.—____higher,andyouwillseethehouse.—OK.A.StandingB.TostandC.WhenyoustandD.Stand6.Please___doit.A.heB.lethimC.letheD.him7._____letanyoneopenthedoor.A.Don'tB.WillC.NotD.No8.—Don’tbelateagain.—Sorry,______.A.ImayB.ImustC.IwillD.Iwon’t禁止吸烟可以怎样表达呢？2.If引导的条件状语从句：译为“如果，假如”(1)if从句+祈使句(2)if从句+主句（一般将来时）本模块先学习if从句的第一种结构：if从句+祈使句。注：1.If所引导的是一个完整的句子，一定要有主语。2.If从句表示“如果…..，就......”。可以放在主句之前，也可放在主句之后。如果从句在主句之后无逗号隔开；如从句在主句之前则用逗号隔开。If引导的条件状语从句Ifyouwanttoturnontherecorder,pressthebluebutton.Ifyouwanttoplayback,pressthegreenbutton.IfyouthinkyouleftitatEmily’shouse,callher.=CallherifyouthinkyouleftitatEmily'shouse.注意：if从句的谓语动词用一般现在时1.Ifyouwanttogo,pleasetellme.如果你想去的话，请告诉我一声。2.Ifyouwanttoknowmoreaboutit,callnow.如果你想了解更多的内容，现在就打电话吧。3.Ifyouwanttoknowwhattosee,lookattheguide.如果你想知道有什么可看的，就读一下指南吧。从例句中可以看出，if引导的条件状语从句不是指已经发生的事件，而是指能够发生或可能发生的事件。Let’spractisePocketmoneyIfyouwanttohaveenoughpocketmoney______________________foryourparentsdohouseworkDomorehouseworkIfyoudon’twanttobelateforschoolPlease______Hurryup!!hurryup.Whatshouldyoudoif…?Ifyouwanthertobehappysaysorrytoher.Let’stalk:Whatshouldyoudoif…?1ooIfyouwanttogetgoodmarks,Studyhard.根据示例完成下列句子Example:Ifasnakebitesyou,takeaphoto.1.Ifyou_______(receive)atextmessage,answerit.2.Ifyou___(do)someworkonyourcomputer,saveit.3.Ifaphotoisn’tgood,____________(notshow)ittoyourfriends.4.Ifyouwantmoreinformation,____(look)onawebsite.5.Ifyou__________(betired),_____(have)arest6._____(print)thephotoifyou______(like)it.7._____(look)atourwebsiteifthecamera_____(notwork)总结：1.if从句的位置2.if从句的时态3.主句的句型主句之前，或主句之后一般现在时动词原形开始的祈使句receivedodon'tshowlookaretiredhavePrintlikeLookdoesn'tworkIf从句（条件状语从句）祈使句+if条件状语从句if条件状语从句，+祈使句（从句后加逗号）if条件状语从句要用一般现在时。句型结构时态If条件状语从句（1）当堂检测Canyouwritethemdown?1.禁止吸烟_______________________2.禁止入内_______________________3.Nophotos._______________________4.Don’ttouch.______________________5.Noshouting._____________________6.Noparking.______________________NosmokingNoentry禁止拍照禁止触摸禁止喧哗禁止停车Completethesentenceswiththecorrectformofthewords.1.Ifyou_______(listen)tothemusic,_____(buy)aCD.2.Ifhe______(be)lateforschool,______(notwait)forhim.3.Ifyou____(buy)anewcamera,____(get)agoodone.4.Ifthelight____________(notcome)on,____(wait)foroneminute.isbuygetdoesn’tcomewaitdon’twaitlistenbuy5.Ifyou______(want)toknowhowitworks,readtheinstruction.6.Ifyouwanttobuyanewcamera,_____(get)agoodone.7.Ifit___________(notwork),waitforaminuteandthentryagain.8.______(turn)offtheradioifyou________(notwant)tolistentomusicwantgetdoesn’tworkTurndon’twantListeningandvocabulary1.Matchthepictureswiththephrases1.Don’ttouch.2.Nosmoking.3.Noshouting4.Nophotos.Nowworkinpairs.Tellyourpartnertherules.1.Youarenotallowedtotouchit.2.Youaren’tallowedtogoin.3.Youaren’tallowedtotakephotos.4.Youaren’tallowedtoshout.2.Listenandanswerthequestions1.WheredidLinglingfindtheguide?__________________________2.HowmanypeoplearegoingtothemuseumonSaturday?______________________________Shegotitfromtheinternet.Threereadandchoosethebestanswer.1.Theycan'tgotothemonkeyexhibitionbecause()A.it'sclosednowB.they'reshoutingC.theyhavetogohome2.Theguarddoesn'tallowthemto()A.crosstheropeB.takephotosC.shoutD.a,bandc3.Daming()therulesinthemuseum.A.likesB.doesn'tlikeC.isagainst4.Theyhavetogodownstairsto()A.takephotosortouchthesculptures.B.lookforLingling'sn