Unit5Bird-WatchersPERIOD4:VOCABULARYTeachingObjectives●Togettoknowprefixes●Touseadjectivesinthecontextoftalkingaboutnaturereservesandwildbirdsbyapplyingprefixestoindicatenegativemeaning●ToshowthestudentsaneffectivewaytoenlargetheirvocabularybyaddingprefixestoadjectivesTeachingProceduresSTEP1UsingsomepicturestoelicitsomeadjectivesHelpful,unhelpfulgrateful,ungratefulkind,unkindGetthestudentstoreadthewordsandthendirecttheirattentiontotheprefix‘un-’.Pointoutthattheprefix‘un-’changeapositiveadjectiveintoanegativeone.STEP2AddingprefixestowordsGetthestudentstoaddprefixestothefollowingwords.Atthesametime,makeasummaryoftheadjectivesthatneedtheprefix‘un-’toformnegativeadjectives.usualunusualkindunkindgratefulungratefulhelpfulunhelpfulhappyunhappyfriendlyunfriendlyluckyunluckylovelyunlovelySTEP3Gettingthestudentstocompletethefollowingexercises1.Sheisa__girl,butshewas__whensheheardthebadnewsyesterday.(happy)2.Davidisa_____boy.Buthisdogis_______,noonelikesit.(friendly)3.Don’tbeso___!Oryouwillhavenofriends.Youshouldbe___toothers.(kind)4.Tomwas__before.Butnowheis__andalwayshelpshisclassmates.(helpful)5.Insomeforeigncountries,somepeoplethinkthenumber13is______.Thatistosay,theydon’tthink6.13isa_____number.(lucky)6.Iloveanimalsbecausetheyareveryprettyand_____.Butmosquitoesaredangerousand_______.(lovely)STEP4MatchingthewordsontheleftwiththeiroppositesontherightTellthestudentsthat‘un-’isnottheonlyprefix.Therearemoreprefixeslikesthis.Invitethestudentstoopentheybookandaskthemtomatchthewordsontheleftwiththeiroppositesontheright.Helpthestudentstocategorizethewordsusingthefollowingtable.un-unfriendly,unusual,untidyunpopular,unhealthy,unsafedis-dishonestim-impolite,impatient,impossible(usuallybefore‘m’or‘p’)in-Infamous,inexpensive(neverbefore‘l’,‘m’,‘p’or‘r’)ir-irregular(usuallybefore‘r’)il-illegal(usuallybefore‘l’)Helpthestudenttoworkoutsomeoftherules.STEP5CompletingthesentencesinPartBGetthestudentscompletethesentencesinPartB,Page80.First,getthestudentstochecktheanswersinpairs.Thengothroughthesentencesinclass.Drawthestudents’attentiontothethingstheyshouldorshouldn’tdowhilegoingbirdwatching.Helpthestudentstolocatesomephraseshere,e.g.‘beinterestedin’,‘leavelitter’and‘inthefuture’.STEP6CompletingthefollowingsentencesGetthestudentstotalkaboutmorethingstheyshouldpayattentiontobycompletingthefollowingsentences.1.Itis__________(necessary)toweartoomanyclotheswhenyougobirdwatchinginZhalonginsummer.2.Itis___________(comfortable)towearleathershoeswhenyougobirdwatchinginZhalong.3.Thebirdswillfeel__________(happy)ifyouthrowstonesatthem.4.Ifyouleavelitterwhenyoudobirdcounting,youwillbe__________(welcome).5.Itis__________(correct)tohuntorfishinZhalong.6.Thered-crownedcranesarerare.Theyare_________(common).7.Ifyouplaytricksonbirds,theywillthinkyouare__________(friendly).8.Itis__________(possible)togotoZhalongbytrainwithintwohoursfromNanjing.STEP7DoingmoreconsolidationexercisesA.根据汉语提示写出句中所缺的单词1.It’s__________(必要)totakeanumbrellawithyouinLondon.Butit’s____________(没有必要)todothisinBeijing.2.It’snotgoodtobea__________(不诚实)boy.3.Nothingis_____________(不可能)ifweputourmindsintoit.4.It’s____________(不礼貌的)tolookatforeigntouristswitheyeswideopen.5.ThisnewT-shirtmakeshimfeel_______________(不舒服).6.Hethinksitis________________(不必要)tocleantheteethtwiceaday.B.根据句意及字母提示填空1.Hedidn’tpasstheexam.Helooksu__________.2.Thepastformof“go”isani_________change.3.Hebrokehisleginanaccidentyesterday.Heisu__________totakepartinthesportsmeeting.4.‘Gardon’isani__________spelling.Itmustbe‘garden’.5.Anh__________childnevertelllies.6.Doyourhomeworkascarefullyasp__________.7.Ithinkit’si_________foryoutodosomuchworkinanhour.STEP8Homeworka.ReadthesentencesinPartB.b.Trytofindmorewordswiththeprefixes.c.FinishofftheexercisesintheEvaluationHandbookandLearningEnglish.
