topic-sentence.ppt
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topic-sentence.ppt
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ParagraphWritingParagraphWritingParagraphWritingWhatisthestructureofaparagraph?
TheTopicSentenceSupportingsentencesTheconcludingsentenceThisisthestructureofaparagraph!
Generallyspeaking,thesethreedifferenttypesofsentencesplaydifferentrolesinaparagraph:
1.Topicsentence;2.Supportingsentences;3.Concludingsentence.asentencetotellthereaderwhattheparagraphismainlyabout.sentencestogivemoredetailedinformationaboutthetopicsentence.asentencetoendaparagraphortosummarize(总结)总结)theideas.(主题句主题句)(扩展句扩展句/阐述句阐述句)(结论句结论句/结尾句结尾句)TheTopicSentenceThecharacteristicsofatopicsentenceThepositionsofatopicsentenceTheCharacteristics1)Thetopicsentencemustbeacompletesentence.2)Thetopicsentenceshouldalwayscontainbothatopicandacontrollingidea.TheTopicSentence=Topic+ControllingIdea3)Thetopicsentenceshouldbeneithertoogeneralnortoospecific.Examples:
1)Theimportanceofreadingwidely.Readingwidelyisveryimportantinimprovingonesreadingcomprehension.2)Fireaccidentsinbigcities.Recentlyyearshavewitnessedamarkedgrowthoffireaccidentsinbigcitiesinourcountry.3)Tomakeallthedecisionsforchildren.ParentsinChinatendtomakeallthedecisionsfortheirchildren.Thetopictellsthereaderwhattheparagraphisabout.Thecontrollingideaisakeywordorphrasethatexpressesthebasicpointofaparagraph.Note:
acontrollingideacommitstheparagraphtoaspecificaspectofthetopic.e.g.1)Conveniencefoodsareeasytoprepare.2)Alcoholicbeveragesshouldbebannedfromcollegecampusesfortworeasons.3)TherearequiteafewunusualsuperstitionsinChinaaboutmarriage.(general)(specific)ReadthefollowingtopicsentencesandthenidentifythetopicandthecontrollingideaineachsentencePeoplecanavoidburglariesbytakingcertainprecautions.Thereareseveraladvantagestogrowingupinasmalltown.MostUSuniversitiesrequirea550pointTOEFLscoreforanumberofreasons.AirpollutioninMexicoCityistheworstintheworldforanumberofreasons.Fixingaflattireonabicycleiseasyifyoufollowthesesteps.Ridingabicyclegivespleasure.ThereareseveralenjoyablewaystotravelbetweentheUSandQueretaro.Animalsindangerofbecomingextinctcomefromawiderangeofcountries.Effectiveleadershiprequiresspecificqualitiesthatanyonecandevelop.IndustrialwastepouredintoLakeMichiganhasledtodramaticchangesinitsabilitytosupportmarinelife.InordertofullyexplorethewreckoftheTitanic,scientistsmustaddressseveralproblems.Discussion:
whichofthefollowingstatementisgeneral,specificorsuitable?
Group11)Americanfoodisterrible.2)AmericanfoodistastelessandgreasybecauseAmericansusetoomanycanned,frozen,andpackagedfoodsandbecauseeverythingisfriedinoilorbutter.3)Americanfoodistastelessandgreasy.(toogeneral)(toospecific)(suitable)Group21)Manyvoterssupportedthecandidate.2)Manyvoterspassivelysupportedthecandidate.Group31)Toplayanykindofmusicalinstrument,oneneedstoknowsomethingabouttheinstrument.2)Toplayanykindofdrumrequiresagoodsenseofrhythm.(toogeneral)(toogeneral)(suitable)(suitable)Herearesomeexamplesofsentencesthatcannotbeusedastopicsentences.Canyoufigureoutwhytheyareinappropriate?
1)MyhometownisfamousbecauseitislocatedbyWheatonRiver,whichisverywide,andbecauseitisbuiltnearanunusuallysteephillcalledWheatonHill.Analysis:
Theproblemwiththissentenceisthatitcontainstoomanydetails.Topicsentencesaregeneral,anddetailsshouldappearlaterintheparagraph.Revised:
Myhometownisfamousforseveralamazinggeographicalfeatures.2)Therearetworeasonswhysomepeopleliketobuycarswithautomatictransmissionandtworeasonswhyotherslikecarswithmanualtransmission.Analysis:
Thissentenceisnotappropriateasatopicsentencebecauseitmentionstwotopics,notjustone.Paragraphsareusuallyaboutonemainthingandsotheirtopicsentencesshouldalsobeaboutonlyonemainthing.Revised:
a)Therearetworeasonswhysomepeopleliketobuycarswithautomatictransmission.OR(inadifferentparagraph):
b)Therearetworeasonswhysomepeoplelikecarswithmanualtransmission.3)Cloudsarewhite.AnalysisTheproblemwiththissentenceisthatitistoogeneral.Itisalsoveryboring!
Wouldyouliketoreadaparagraphwiththistopicsentence?
Mostpeoplewouldnot.RevisedTheshapesofcloudsaredeterminedbyvariousfactors.DifferentPositionsOfaTopicSentencetypeThepositionsofthetopicsentenceAtthebeginningofaparagraphAttheendofaparagraphInthemiddleofaparagraphNocleartopicsentenceWorkingroupsoffourandfindthetopicsentenceofeachparagraph!
1Smokingcigarettesisharmfultoyourhealth.Experimentsshowthatcigarettesmokingcancausecancer.Besidesthemostseriousandterribledisease(illness)-cancer,cigarettesmokingcanalsocauseotherhealthproblems.Forexample,itcangiveonea“smokerscough”.Finally,studieshaveshownitiseasyforcigarettesmokerstocatchcolds.Whetheryougetanunimportantcoldorterriblekiller,cancer,smokingisharmful.Isitworthit?
2Oftennoonelooksmoreguiltythantheinnocent.Ontheotherhand,nobodymaylookmoreinnocentthanaprofessionalcriminal.Andthemanwhoknows“everything”mayreallyonlybetryingtohidehisownweakness.So,itisfoolishtotrytojudgeapersononlybyhisappearance.3Everybridewantsherweddingtobethemostwonderfuldayofherlife
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- 关 键 词:
- topic sentence