24雅思提升大作文topic sentence

Topicsentence定义Thetopicsentenceisageneralstatementthatstatesthemainpointofaparagraph.InEnglishaparagraphisdefinedasalogicalunit,acollectionofsentencescenteringupononeidea.Therefore,therearisesaguidingsentenceindicatingandcontrollingthedevelopmentofthissingleidea.Awell-constructedtopicsentencehelpsthewriterstayfocusedonwhattheyaregoingtowriteabout.Also,aparagraphwithaclearanddirecttopicsentenceiseasierandmorecomfortabletoread.Topicsentence特点1)Thetopicsentencemustbeacompletesentence.2)Thetopicsentenceshouldalwayscontainbothatopicandacontrollingidea.TheTopicSentence=Topic+ControllingIdea3)Thetopicsentenceshouldbeneithertoogeneralnortoospecific.OnesingleIdea•Aneffectivetopicsentencecoversonlyonesingleidea.InEnglishaparagraphissupposedtoelaborateononlyoneaspectofthesubject.Atopicsentencedealingwithtwoormorepointsisweak.•Lookatthefollowingexample:Findingtherightjobisimportantandcanleadtorewardingexperiences.Findingtherightjobcanleadtoanimprovedsenseofself-esteem.OneControllingIdea•Aneffectivetopicsentenceisafocusedonewithacontrollingidea,limitedenoughtobesupportedinoneparagraph.Atoogeneralstatementleadstovaguegeneralities,carryinglittlesubstantialinformation.Atoospecificoneleaveslittleroomforfurtherdevelopment.Lookattheexamples:Throughouthistorypeoplehavetriedtodefineintelligence.AmericanfoodisterriblebecauseAmericansusetoomanyprepackagedfoodsandeverythingisfriedinoilorbutter.OneControllingIdea•Atopicsentenceshouldbeproperlylimitedtoguideanddeveloptheargument,butatthesametimebegeneralenoughtoleaveroomforelaboration,persuasionorargumentinthebodyoftheparagraph.Thefollowingsentenceisagoodexample.ThemostamazingpresentIreceivedforChristmasin2008wasinfactnotapresent,butthefactthatmyfamilywastogetherforthefirsttimeinsevenyears.Examples1)Theimportanceofreadingwidely.Readingwidelyisveryimportantinimprovingone’sreadingcomprehension.2)Fireaccidentsinbigcities.Recentlyyearshavewitnessedamarkedgrowthoffireaccidentsinbigcitiesinourcountry.3)Tomakeallthedecisionsforchildren.ParentsinChinatendtomakeallthedecisionsfortheirchildren.ExamplesThetopictellsthereaderwhattheparagraphisabout.Thecontrollingideaisakeywordorphrasethatexpressesthebasicpointofaparagraph.Note:acontrollingideacommitstheparagraphtoaspecificaspectofthetopic.e.g.1)Conveniencefoodsareeasytoprepare.2)Alcoholicbeveragesshouldbebannedfromcollegecampusesfortworeasons.3)TherearequiteafewunusualsuperstitionsinChinaaboutmarriage.Practice:IdentifythetopicandcontrollingideaPeoplecanavoidburglariesbytakingcertainprecautions.Thereareseveraladvantagestogrowingupinasmalltown.MostUSuniversitiesrequirea550pointTOEFLscoreforanumberofreasons.AirpollutioninMexicoCityistheworstintheworldforanumberofreasons.Fixingaflattireonabicycleiseasyifyoufollowthesesteps.Ridingabicyclegivespleasure.Practice:IdentifythetopicandcontrollingideaThereareseveralenjoyablewaystotravelbetweentheUSandQueretaro.Animalsindangerofbecomingextinctcomefromawiderangeofcountries.Effectiveleadershiprequiresspecificqualitiesthatanyonecandevelop.IndustrialwastepouredintoLakeMichiganhasledtodramaticchangesinitsabilitytosupportmarinelife.InordertofullyexplorethewreckoftheTitanic,scientistsmustaddressseveralproblems.Howtowriteagoodtopicsentence?Atopicsentencemustincludeyourtopicandanopinionoryourcontrollingidea.Generallyspeaking,topicsentencesare:•Short•Simple•Clear•GiveastrongideaOftenusephrasessuchas:常用句型1.Oneofthemainreasonsfor…2.Oneofthemajorfactorsin…is...3.Generallyspeaking,…4.Oneofthestrongestargumentsagainst/infavourof…is…5.Oneofthemainadvantages/disadvantagesof…is…Practice:1……………………………………………………….Unlikeone'smothertonguewhichisheardandpracticedalmostatanytime,aforeignlanguageisonlylearnedandtaughtinclass.Thetimearrangementisusallyabout2to4periodsaweek,whichisobviouslynotenoughforfluencyandproficiency.Ideally,anextratwoormorehoursareneededifyoureallywanttoseeimprovement.Youneedtoreadmore,listenmore,speakmoretomakesomeprogresseveryday.Practice:２TheSecretofSuccessItgoeswithoutsayingthatthereisnoshortcutonone‘swaytosuccess.Theimportantthinginlife．．．．．．．．．．．．．．．．．.Livingwithoutagoalislikesailingwithoutacompass.Thisisespeciallytrueofsomeuniversitystudents.Wheninhighschool,theirgoalwassimpleandclear--topassthecollegeentranceexamandenteranidealuniversity.Now,however,someofthemseemtohavelostthemselvesoncampus.Lackofpurposeisthecauseofmostofourfailures.Practice:3Oneofthestrongestargumentsinfavourof…………………………………………isthat…………………………………Researchshowsthatthereisanincreasingnumberofoverweightchildreninthedevelopedworldandthatthereisalinkbetweentheamountoftimespentinfrontofscreensandbeingoverweight.Ifchildrenwerenotallowedtobeonscreens,theywouldfindotherwaystoentertainthemselves,andthiswouldincludeplayinggamesandsports.Researchalsoshowsthatactivechildrengrowintoactiveadultssorestrictingscreentimeforchildrenwouldhavealifelongimpactonthepeopleconcerned.Howtowriteagoodtopicsentence?2Anothertricktowritingagoodtopicsentenceistousenumbers.ForExample:•Thereareseveral/afewreasonswhy...•Therearemanystepsleadingtosuccess.•Severalfactorsmayc