第3讲构词法[全国卷考情分析]题型典题试做命题解读语法填空1.(2019·全国卷Ⅲ)Whentheywerefreefromwork,theyinvitedustolocaleventsandletusknowofaninterestingcompetition(compete)towatch,togetherwiththestorybehindit.2.(2018·全国卷Ⅰ)Toavoidkneepain,youcanrunonsoftsurfaces,doexercisestostrengthen(strength)yourlegmuscles(肌肉),avoidhillsandgetgoodrunningshoes.Runningischeap,easyandit'salwaysenergetic(energy).3.(2018·全国卷Ⅱ)Atasteformeatisactually(actual)behindthechange:Animportantpartofitscornisusedtofeedchickens,pigs,andcattle.1.给出形容词提示词,填写副词或名词;2.给出动词提示词,填写名词或形容词;3.给出名词提示词,填写形容词或动词。合成法和转化法[题组试做]单句语法填空1.(2019·湖北七市联考)FloweringinMay,peonies'largepetalsandstrongcolorsarelinkedtoprosperityand________(rich)intraditionalChineseculture.richness[考查名词。空前and一词决定其前后单词词性相同,and前prosperity(繁荣)是名词,所以空处应该也是名词,形容词rich的名词是richness。]2.(2019·武汉武昌区调研)Infact,itmusthaveahardstruggletogetits________(free)fromthecocoon.freedom[考查名词。空处前面是形容词性物主代词its,形容词性物主代词后面要接名词,所以填名词freedom。]3.(2019·合肥第一次教学质量检测)SeniorexpertsfromUNESCOwereamazedatitsuniquenaturalscenery,nearperfectbiologicalsystem,andcreative________(combine)ofnatureandhumanism.combination[考查名词。由前面的形容词creative和后面的of可知,此处应用combine的名词形式。]4.(2019·江西五校第一次联考)TheUnitedNationsagencyreportedthisweekthe12superbugsareathreattohuman________(healthy).health[考查名词。介词后跟名词、代词或动词ing形式作宾语。humanhealth意为“人类健康”,作介词to的宾语。]5.(2019·河南豫北名校质量评估)Lanzhoubeefnoodlehasahistoryof102yearsandisknownforits_______(taste)beef,soupandnoodles.tasty[考查形容词。分析句子结构可知,空处在句中作定语,修饰名词beef,故应填形容词tasty“美味的,可口的”。][要点解读](一)合成法合成词是由两个或两个以上的词合成一个新词的构词方式(有的合成词中间需加连字符)。合成词的词义可以根据各个组成部分的意思加以推断。构成合成词的几个词可以是词性相同的词也可以是词性不同的词。高中阶段常见的合成形式有:合成名词notebook笔记本;classroom教室;blackboard黑板;teamwork配合;spaceship宇宙飞船;woodcut木刻合成形容词lifelong毕生的;secondhand二手的;manmade人工的;widespread广泛的合成动词underline画底线标出;whitewash粉饰;broadcast广播;download下载(二)转化法不增加任何成分,不改变词形,把一个单词由一种词性转化为另外一种词性的构词法叫转化法。高中阶段常见的转化形式有:名词→动词button纽扣→button扣上纽扣形容词→动词correct正确的→correct改正动词→名词feed喂养→feed一餐,一顿形容词→名词native本地的→native本地人副词→动词up在上面→up提高派生法考点一形容词加ly变为副词的规律[题组试做]单句语法填空1.Theboyranquickly(quick)toschool.2.“What'sthat?”Fathershoutedangrily(angry).3.Thelittlegirlisextremely(extreme)eagertoknowtheresultoftheexam.4.Yourcompositionisbadly(bad)organized.Pleasedoyourwritingexercisemoreattentively(attend)nexttime.[要点解读]1.一般情况加ly。如:real→really;careful→carefully;polite→politely;quick→quickly2.“辅音字母+y”结尾的,将y改为ily。如:angry→angrily;busy→busily;heavy→heavily3.以ble结尾的,将ble改为bly。如:probable→probably;possible→possibly4.个别单词,去掉e再加ly。如:true→truly5.以ic结尾的,加ally。如:basic→basically;energetic→energetically[注意]有的名词+ly→形容词,如:friend→friendly;day→daily考点二动词/名词变形容词的常见后缀[题组试做]单句语法填空1.Heisratherselfish(self)sothatnobodypreferstohaveatalkwithhim.2.Thegoodworkingconditioninthefactoryisattractive(attract).3.Heisreliable(rely)soyoucandependonhim.4.Theyarenervous(nerve)abouttheirfirsttripabroad.5.Theflowerisharmful(harm)toourhealth.[要点解读]后缀例词ableaccept→acceptable可接受的comfort→comfortable舒适的fashion→fashionable时髦的suit→suitable合适的reason→reasonable有道理的almusic→musical音乐的origin→original最初的person→personal个人的;私人的center→central中央的;中心的nature→natural自然的;天生的fuldoubt→doubtful怀疑的forget→forgetful健忘的harm→harmful有害的hope→hopeful有希望的peace→peaceful和平的ibleaccess→accessible容易取得的horror→horrible可怕的;恐怖的terror→terrible可怕的iveact→active积极的;活跃的effect→effective有效的;生效的attract→attractive有吸引力的impress→impressive给人深刻印象的ouscontinue→continuous不断的;持续的anxiety→anxious忧虑的caution→cautious十分小心的;谨慎的curiosity→curious好奇的humor→humorous幽默的sometire→tiresome令人厌倦的trouble→troublesome麻烦的ytaste→tasty美味的;可口的health→healthy健康的wealth→wealthy富裕的;丰富的erneast→eastern东方的;向东的ishchild→childish孩子气的fool→foolish愚蠢的;可笑的self→selfish自私的icscience→scientific科学的economy→economic经济的history→historic历史上著名的aryimagine→imaginary想象中的考点三动词变名词的后缀[题组试做]单句语法填空1.Annanwillberememberedforhisabilityandhiswarmth(warm).2.Withouthesitation(hesitate),Idecidedtofollowthemandwedidhavelotsoffunthatday.[要点解读]后缀例词alapprove→approval赞成;批准arrive→arrival到来;到达survive→survival幸存propose→proposal提议;建议anceenceappear→appearance出现;外貌guide→guidance指引;指导perform→performance表演;节目exist→existence存在;生存prefer→preference偏爱refer→reference参考;查阅iontionationattract→attraction吸引compete→competition比赛;竞争invite→invitation邀请;请柬graduate→graduation毕业expect→expectation期待;期望explain→explanation解释(s)siondiscuss→discussion讨论;辩论decide→decision决定admit→admission接纳;准许入学inghear→hearing听力;听觉begin→beginning开始mentachieve→achievement功绩;成就argue→argument辩论;论据treat→treatment对待;治疗ureturefail→failure失败;故障depart→departure离开;出发press→pressure压力mix→mixture混合;混合物yrecover→recovery恢复;痊愈discover→discovery发现其他choose→choice选择vary→variety多样化;种类tend→tendency趋向;趋势考点四形容词变名词的后缀[题组试做]单句语法填空1.I'mdoingTom'sjobinhisabsence(absent).2.Hehastheability(able)todothejob.[要点解读]后缀例词ageshort→shortage不足;短缺cyefficient→efficiency效率;功效fluent→fluency流利;流畅accurate→accuracy准确性private→privacy隐私;私密domfree→freedom自由;自在wise→wisdom明智;智慧cedifferent→difference差异silent→silence沉默nessweak→weakness虚弱;弱点kind→kindness仁慈;好意careless→carelessness粗心大意thgrow→growth成长;发展strong→strength力气;强项warm→warmth温暖;热情ytyitydifficult→difficulty困难cruel→cr