高三英语一轮复习派生词课件

GoodAfternoon!MessageboardWhatisyourbiggestdifficultyinlearningEnglish?WhatisyourbiggestdifficultyinlearningEnglish?VocabularyHowtorememberwordmoreefficiently?AftersomanyyearsoflearningEnglish,haveyoufoundsomeeasywaysto

doubleyourvocabulary?UseprefixesandsuffixesOryoucancloneitWordFormation——Derivation构词法—派生词Derivation

(派生词)root词根prefix前缀suffix后缀++unhappinessthebeginningofawordtheendofawordPrefix

(前缀)

Readthefollowingsentencesandtrytounderstandthewords'meanings

inbold.

Tip:Guessthemeaningsofthelettersinred.Task1

NegativeprefixesPrefixMeaningExampleil-in-im-dis-un-不incorrectillegalimpossibledislikeuncertain不喜欢不正确的不合法的不可能的不确定的correctlegalpossiblelikecertainmis-misunderstand误解understandFacingalotofaffairs,youneedtomakeaplantoprearrangethem.Thisbridgeisbrokensoweneedtorebuildit.

Readthefollowingsentencesandtrytounderstandthewords'meanings

inbold.

Task2

Tip:Guessthemeaningsofthelettersinred.OtherprefixesPrefixMeaningExamplepre-re-在...之前再previewreview预习复习viewviewsuffix

(后缀)RuleSuffixExampleadj.＋suffix→n.

v.＋suffix→n.

Nounsuffixesteach→difficult→weak→perform→improve→pollute→teacherdifficultyweaknessperformanceimprovementpollution老师困难虚弱表演改进污染-ness-y/-ty/-ity-er/-or-ance/-ence-ment-tion/-sionRuleSuffixExamplev.＋suffix→adj.n.＋suffix→adj.

Adjectivesuffixesdiffer→music→create→use→use→different

musicalcreativeuselessuseful舒适的不同的音乐的创造性的无用的有用的danger→dangerous危险的-able/-ible-ant/-ent-ic/-al/-ical-ive-ous-ful-lessSuffixRuleExampleadj.＋ly→adv.

Adverbsuffixeshappy

→slow→careful→busy

→possible

→

simple→happilyslowlycarefullybusilypossiblysimply开心地缓慢地仔细地忙碌地可能地简单地一般情况直接加-ly“辅音字母＋y”结尾，改“y”为“i”，再加-ly以“-le”结尾，去“e”，再加“y”independenceindependenceprefix(前缀)root(词根)suffix(后缀)Prefix:agroupoflettersthatisaddedtothebeginningofawordtochangeitsmeaning.Suffix:aletteroragroupoflettersaddedtotheendofawordtomakeadifferentword.agreedisment

prefixsuffixchangethemeaningofawordchangethepartofspeechofawordV.n.perfectimperfectionperfectionimperfectwordprefixsuffix['prifɪks]['sʌfɪks]前缀后缀Prefixesmaychangethemeaningsofwords.Suffixesmaychangethepartsofspeech(词性)ofwords1.ChineseNewYearisa_________(celebrate)markingtheendofthewinterseasonandthebeginningofspring.（2020年全国卷II）2.Filledwith_______(curious),theartistpackedhisbagsandleft.（2020年全国卷III）3.Then,handlethemostimportanttasksfirstsoyou’llfeelarealsenseof__________(achieve).（2016年全国卷II）celebrationcuriosityachievement5.The_________(beauty)longbranchescoveredwithpink-coloredbuds(蓓蕾)makefantasticdecorations.（2020年全国卷II）6.Schooluniformsare__________(tradition)inBritain,butsomeschoolsarestartingtogetridofthem.（2019年浙江卷）7.Theobviousoneismoney;eatingoutonceortwiceaweekmaybe__________(afford)butdoingthismostdaysaddsup.（2018年浙江卷）beautifultraditionalaffordable7.Landingonthemoon’sfarsideis________(extreme)challenging.（2020年全国卷I）8.Asthesmallboatmoved______(gentle)alongtheriverhewasleftspeechlessbythemountainsbeingsilentlyreflectedinthewater.(2020年全国卷Ⅲ)9.________(certain)duringtheholidayperiod,thisplantisamust.（2020年全国卷II）extremelygentlyCertainly不同词性在句中的不同用法：作主语、及物动词或者介词的宾语，一般用____。作谓语、动词不定式中，一般用____。作定语、表语或补语，一般用______。修饰动词、形容词或整个句子等作状语，一般用____。名词动词形容词副词nationalvisitorsachievements