新概念英语第二册教案Lesson_16

Lesson16ApoliterequestpolicemangetaticketnoparkingareaAskandanswerthequestionsinpairs.Whathappensifyouparkyourcarinthewrongplace?Heusuallygivesyouaparkingticket,doesn’the?Areyouluckyifheletsyougowithoutone?Dothetrafficpolicealwaysgiveparkingtickets?Trafficpolicearesometimesverypolite,aren’tthey?Wherewereyouspendingaholiday?Whatdidyoufindonyourcar?Diditwelcomeyoutothecity?Wereyouina“NoParking”area?Whatdidthenoteaskyoutopayattentionto?Retellthestory:1.Park---wrong---policeman---find2.Lucky---letsyougo---ticket3.However---doesn’talways4.Holiday---Sweden---note---mycar5.“Sir---welcome---city”6.“NoParking”area7.Enjoy---payattention---signs8.Note---areminder9.Arequestlikethis---cannotfail---obeyitApoliterequestIfyouparkyourcarinthewrongplace,atrafficpolicemanwillsoonfindit.Youwillbeveryluckyifheletsyougowithoutaticket.However,thisdoesnotalwayshappen.Trafficpolicearesometimesverypolite.DuringaholidayinSweden,Ifoundthisnoteonmycar:‘sir,wewelcomeyoutooutcity.Thisisa“NoParking”area.Youwillenjoyyourstayhereifyoupayattentiontoourstreetsigns.Thisnoteisonlyareminder.’Ifyoureceivearequestlikethis,youcannotfailtoobeyit!SummarywritingTrafficpoliceusuallygiveyouaticketifyouparkyoucarinthewrongplace.ThewriterfoundapolicenoteonhiscarduringaholidayinSweden.Thetrafficpolicewantedhimtopayattentiontotheirstreetsigns.Noonecanfailtoobeyapoliterequest.(50words)allow&letallowsb.todosth.(较为正式）sb.isallowedtodosth.letsb.dosth.（通常不用于被动语态）1.我们不允许大家在教室里吸烟。2.我会让你用我的字典的。Wedon’tallowpeopletosmokeintheclassroom.Iwillletyouusemydictionary.Compare:1)Pleaseallowmetobuyyouadrink.请让我给你买一杯酒。(听起来显得客气，庄重）1)Letmebuyyouadrink.让我来给你买一杯酒。（听起来更亲切，随便）However&butHowever是副词，既可放在句子的开头，又可放在句中。But是连词，用来连接一个句子，它只能位于句首，而且强调对比。a)Hehadaninvitation;________,hedidnotgo.b)Hehadaninvitation,_______hedidnotgo.howeverbut票很贵，但我们还是决定去。a)Theticketsareexpensive;however,westilldecidedtogo.b)Theticketsareexpensive;butwestilldecidedtogo.Failtodosth.Failtodo(=donotdo,cannotdo)表示“不，不能，没有”1)他始终每星期给母亲写信。2)他没有还清债。Heneverfailstowrite(=alwayswrites)tohismothereveryweek.Hefailedtopayhisdebts.Compare:Hefailedtopasstheexam.Hedidnotfailtopasstheexam.他没有通过考试。他通过了考试。Remind:表示使…想起，或“记起，提醒”remindsb.todo.Remindsb.ofsth.我提醒他寄信。这张照片使我想起了他的父亲。Iremindedhimtoposttheletter.Thisphotoremindsmeofhisfather.1.我没有忘记寄你的信。2.替我向你的母亲问好。Irememberedtopostyourletter.Remembermetoyourmother.Compare:条件句（ConditionalSentences）类型1---真实条件句（SentencesofRealCondition)条件句是表示在某种条件或要求下，预期会产生某种结果的表达方法。在“真实条件句”中,IF-从句中假设的情况是有可能实现或发生的.1.IF-从句中的动词用一般现在时态,主句中的动词用一般将来时态.主句和从句的位置可以互换:Ifheisout,I’llcalltomorrow.Ifhehastime,hewillcome.You’llmissthetrainifyoudon’thurry.He’llgetthereintimeifheruns.2.如果要用从句表达将来的意思,也只能用一般现在时态的形式来表达,而绝不能用将来时的形式:Ifitrainstomorrow,Iwillstayathome.We’llgooutforapicnicifitisfinenextSunday.Ifhehasenoughmoneynextyear,he’llgotoEurope.3.主句的变化形式:a).IF-从句中的动词是现在时,主句中的shall/will可以用其它情态动词代替:Ifitrains,wecan/must/maystayathome.Ifitstopsrainingwecan/maygoout.Ifyouwanttoloseweight,youmusteatlessbread.b).IF-从句中的动词用现在时,主句还可以是“命令,恳求或劝告”Ifyouwanttoloseweight,youhadbettereatlessbread.Ifyouwanttoloseweight,eatlessbread.IfyouseeTomtomorrow,couldyouaskhimtoringme?4.IF-从句的变化:a)从句中可以用现在进行时,表示现在的行为或将来的安排:Ifyouareleavingtomorrow,I’llsendyouacarIfyouarelookingforPeter,you’llfindhiminthelibrary.b).IF-从句中还可用情态动词:Hewillcometomorrowifhecan.Iftheycanhelpyou,theywill.