英語(yǔ)派生構(gòu)詞法--詞綴教案

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1、Title:DerivationandWordSpellingClassstyle:NewPeriod:OneTeachingmethod:ExamplesandExplanationTeachingtools:ExercisepaperTeachingGoals:①Letssbefamiliarwithcommonprefixesandsuffixes②TeachssagoodwaytodowordspellingImportantpoints:themeaningsofdifferentprefixesors

2、uffixesDifficultpoints:howtofillinwordspellingwithcorrectformsTeachingprocess:Step1:Leading-inTodaywewillreviewawayofword-formationwehavelearnedbefore----DerivationFirstly,Iwanttoaskaquestion:Whatisderivation（派生）?Lookattheblackboardablydisableunableableabably

3、enableabilityInconclusion,由一個(gè)詞根加上前綴和（或）后綴構(gòu)成一個(gè)新詞。詞綴有兩個(gè)作用，形成新的詞意和詞性。Eg.independentinternationalStep2:Warming-upLet’sdosomeexercisestocheckupyourunderstandingaboutitEX1.Completethefollowingsentencesbyaddingaprefixtothewords.1.Rosesaidthatitwas___fairifDadgavemea

4、dictionarybutgaveheronlyadiary.2.Themother___dressedthebaby,thenputhiminabasinofwarmwater.3.Thoughhedidn’twinanymedalsinthelastsportsmeet,hewasnot___couraged.4.It’s___possibleforanyonetofinishtheworkwithinsuchashorttime.5.Pleasedon’t____understandwhatIhavesai

5、d.6.Thisclothwouldbe___visibletoanyonewhowas___fitfortheofficeheheldFromtheexercises,wecanseemanyprefixes.Thenlet’sdonextexercises.EX2.Addanegativeprefixtoeachgrouptocreatewordswithoppositemeaning.____-appearabilityagreehonest____-usualexpectedexperiencedw

6、illinghappyluckyfortunately____-convenientcorrectcapablevisible____-possiblepolitemature____-stopsmokers____-understandtakefortuneleadStep3:Expanding&ConclusionPrefixeschangethemeaningofthewords.Doyouknowthemeaningofthefollowingprefixes?Canyoulistmorewordswit

7、htheseprefixes?Comeon!EX3.re—retellen--encouragepost--postwarpre—pre-readingunder--undergroundover--overworksub--subwaySino—Sino-AmericanStep4:SuffixNow,let’sreviewsomesuffixes.Suffixeschangethespeechesofthewords.EX4.加后綴時(shí)的拼寫(xiě)規(guī)則：①以不發(fā)音e結(jié)尾的去掉e再加后綴→②以輔音字母+У結(jié)尾的變У為i

8、再加后綴satisfy→satisfied③以重讀輔元輔音節(jié)雙寫(xiě)最后一個(gè)字母再加后綴sun→sunnyadj.--able(加在名詞、動(dòng)詞后)“可----的”“能-----的”knowablevaluableunforget___--ful(加在名詞后)①“充滿時(shí)的量”handfulmouthfulspoonful②“富有----的”“充滿---的”carefulhope