高中一轮复习英语北师大版课件语法专项专题十一词类转换

专题十一词类转换语法要点讲练悟通变化形式例词直接加­lyslow→slowly缓慢地改y为­ilyhappy→happily高兴地去e加­ly

true→truly真地后缀例词­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；自主wise→wisdom明智；智慧­cedifferent→difference差异silent→silence沉默后缀例词­nessweak→weakness虚弱；弱点kind→kindness仁慈；好意careless→carelessness粗心大意dark→darkness黑暗­thstrong→strength力气；强项warm→warmth温暖；热情true→truth真相；真理wide→width宽度­y­ty­itydifficult→difficulty困难cruel→cruelty残酷；残暴safe→safety安全disable→disability无能；残疾responsible→responsibility责任后缀例词­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­albenefit→beneficial有益的music→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form→formal正式的nation→national全国的后缀例词­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care→careful细心的use→useful有用的success→successful成功的help→helpful有帮助的­edscare→scared感到恐惧的confuse→confused感到困惑的puzzle→puzzled迷惑的worry→worried担心的bore→bored感到厌倦的excite→excited激动的；兴奋的balance→balanced均衡的后缀例词­ingsurprise→surprising令人惊讶的convince→convincing令人信服的satisfy→satisfying令人满意的worry→worrying令人担心的bore→boring令人厌烦的­ibleaccess→accessible容易达到的；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instruct→instructive有教育意义的expense→expensive昂贵的后缀例词­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dirt→dirty有灰尘的；脏的rain→rainy有雨的sun→sunny阳光明媚的cloud→cloudy阴天的后缀例词­erneast→eastern东方的；向东的west→western西方的；向西的­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想象中的后缀例词­ion/­sion/­ationcorrect→correction改正attract→attraction吸引conclude→conclusion结论；结束decide→decision决定admit→admission接纳；准许入学invite→invitation邀请explain→explanation解释expect→expectation期望­er/­orteach→teacher老师announce→announcer播音员conduct→conductor指挥；售票员后缀例词­mentpunish→punishment惩罚achieve→achievement功绩；成就argue→argument辩论；论据equip→equipment装备；设备­ance/­enceappear→appearance出现；外貌perform→performance表演；节目exist→existence存在；生存prefer→preference偏爱­inghear→hearing听力；听觉begin→beginning开始后缀例词­ure/­turefail→failure失败press→pressure压力mix→mixture混合；混合物depart→departure离开；出发­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；趋势前/后缀例词前缀en­able→enable使能够large→enlarge扩大rich→enrich使充实；使丰富danger→endanger危及courage→encourage鼓励前/后缀例词后缀­enbroad→broaden使变宽ripe→ripen使成熟sharp→sharpen使尖锐wide→widen加宽short→shorten变短deep→deepen加深dark→darken使变暗hard→harden使变硬­ifyclass→classify把……分类just→justify证明……正确simple→simplify简化beauty→beautify美化­izeapology→apologize道歉emphasis→emphasize强调memory→memorize记住real→realize认识到；实现前/后缀例词前缀dis­agree→disagree不同意advantage→disadvantage缺点appear→disappear消失comfort→discomfort使不舒服honest→dishonest不诚实的il­legal→illegal不合法的logical→illogical不合逻辑的im­polite→impolite无礼的patient→impatient不耐烦的moral→immoral不道德的前/后缀例词前缀in­formal→informal非正式的convenient→inconvenient不方便的direct→indirect不直接的ir­regular→irregular不规则的responsible→irresponsible不负责任的mis­lead→mislead误导understand→misunderstand误解un­usual→unusual不寻常的willing→unwilling不愿意的happy→unhappy不高兴的known→unknown不出名的前/后缀例词后缀­lesshope→hopeless无望的end→endless