《词根词缀》PPT课件.ppt

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1、词素分析与练习,第一单元数字前缀,Ped=foot,Pedal 踏板Pedestrian 行人，徒步的Expedition(ex向外+pedi+tion)远征Impede(in+pede缠住脚)妨碍Biped(bi+ped)二足动物Quadruped(quadru四+ped)四足动物Centipede(centi一百+pede)蜈蚣Pedometer(pedo+meter计量器)计程器,Sect,seg=cut,divide 切，割,Section 切开，部门Insect 昆虫Segment 部分，切片Bisect 二分Dissect 解泡；细查Intersect 横切，交叉Transect

2、横断,Graph,gram写，图,Graph 图表，以图表示Autograph 亲笔签名，手稿(auto 自己+graph 自己写的字 亲笔字)Biography 传记(bio 生命+graph+y 谢生命 传记)Calligraphy 书法(calli+graph 字写得漂亮 书法)monograph专题论文（mono 一个+graph 讨论一个问题的论文 专题论文)photograph相片 photo 光+graph 用光写 照片Telegraph 电报(tele远+graph 从远处写来 电报)Diagram 图解，图表(dia 交叉+gram 交叉画图),Ann,annu,enn=ye

3、ar 年，一年,Annals 编年史Annual 一年一度的Anniversary 周年纪念(annu+vers+ary)Millennium 一千年(mill+enn+ium)Biannual 一年两次的(bi+annual)Biennial 两年一次的(bi+ennial)Perennial 终年的，长期的(per+ennial),Chron=time 时间,Chronic 慢性的，长期的，慢性病患者Chronology 年代学，年表Chronological 按年代顺序记载的Chronicle 编年史，记事Chronograph 计时器Chronometer 精密计时器；航海用的经纬仪S

4、ynchronize 同时发生，时间一致 Synchronic 共时的Diachronic 历时的,Exercises,I.根据词素，析词得义1 annual 每年的 quinquennial _ semiannual _ sexennial _ biennial _ septennial _ triennial _ octennial _ quadrennial _ decennial _2.monoplane:单翼飞机 biplane:quadriplane:3.monophase:单相 biphase:triphase:quadriphase:,每五年一次的，半年一次的，每六年一次的，每

5、两年一次的，每七年一次的，每三年一次的，每八年一次的，每四年一次的，每十年一次的。,双翼飞机，四翼飞机，两相，三相，四相。,4.Monovalent:单价的 bivalent:Trivalent:quadravalent:Pentavalent:sexivalent:Heptavalent:octavalent:5.Biset:二等分 trisect:quinquesect:6.diode:triode:quadrode:pentode:hexode:heptode:octode:electrode:,二 写出下列单词：,1 五聚物：pentamer 六聚物：七聚物：八聚物：2 单边的：uni

6、lateral 双边的：三边的：四边的：七边的：八边的：3 五角形：pentagon 六角形：七角形：八角形：九角形：十角形：4 双脚架：bipod 三脚架：六角架：十角架：,Hexamer,heptamer,octamerBilateral,trilateral,quadrilateral,septilateral,octolateralHexagon,heptagon,octagon,enneagon,decagonTripod,hexapod,decapod,5 独轮脚踏车：monocycle 三轮车：两轮车，自行车：四轮车：6 一次：once 二次：从今以后：从那时起：7 单面体：mo

7、nohedron 三面体：四面体：五面体：六面体：七面体：八面体：九面体：,Tricycle,bicycle,quadricycleTwice,hence,thenceTrihedron,tetrahedron,pentahedron,hexahedron,heptahedron,octahedron,enneahedron,三 查阅词典，区分下列各组词：,1 semiweekly biweekly:2 semiannual:biennial:biannual:3 uniped:soliped:4 decilitre decalitre:5 telegram:telegraph:6 decim

8、eter:decameter:,每周两次的，两周一次的，一年两次的，两年一次的，一年两次的。独角的，单蹄的，分升，十升。电报，电报机。分米，十米。,四 试用词素知识识辨单词：,Pentadecagon heptahedronSexadecimal:octodecimo:Heptadecane:hexadecane:Hexadecimal:pentamirror:Decimosexto:amphichromatic:Chromatogram:bichrome:Chronometer:septendecimal:,十五边形，七面体，十六进制，十八开本，十七烷，十六烷，十六进制的，五面镜，十六开本，

9、显示出两种颜色的，色谱，两色的，计时计，十七进制的,五 写出下列单词的形容词形式,Nation continent:Bride:commerce:Part:adverb:Event:act:Nature:grade:,六 选词填空,1 A tetragram is such a word as consists of _ letters.A five B six C three D four2 His ambiguous directions misled us,so we did not know which road to take.The underlined word means:A

10、unclear B magnificent C clear D attractive,3 A heptagon has _ angles.A six B eight C seven D many4 A hexapod has _ feet.A six B two C four D many5 he is a bilingual.He knows _ languages.A four B two C three D none,6“Are”is 100 square meters,so“deciare”means _ square meters.A 100 B 1000 C 10 D 17 A m

11、onorail is a railway with _ rail.A a single B a thick C a straight D a plastic,8 the meaning of ennead is a set of _ discourses or books or pictures.A eight B nine C five D one9 A paper produced by folding a sheet of paper 3 times so as to give _ sheets is called an octavo.A ten B four C three D eig

12、ht,10 the age of Heptarchy refers to the Kingdom of Angles and Saxons in Europe early in middle Ages.A six B seven C two D five11 A hexapod is a kind of animal which has _ feet.A one B two C six D five12 he spent a quinqueennium in the university to learn foreign languages.He came to the university

13、at 20,How old was he when he finish his study in the university?A 25 B 30 C 24 D 26,13 A tetragon is a kind of Geometric fingure which has _ sides.A three B four C nine D five14 A tripartite division has _ regiments.A seven B nine C three D two,15 Biennial shows were held in the city in 1970,and the

14、 next time was _.A 1968 B 1971 C 1969 D 197216 A chronnometer is a kind of exact instrument for measuring _.A time B colour C length D temperature,17 A coloured TV set has a _.A chromtron B electrode C lamp screen D fast screen18 if you want to divide something into three parts,you can say“I _ it.”A want to bisect B want to trisectC want to quinquesect D want to abandon,19 A cube is a _.A heptahedron B trihedronC hexahedron D octahedron20 An octode is a vacuum tube with _ electrodes.A ten B eight C seven D sixKey:1-5 DACAB 6-10 CABDB11-15 CABCD 16-20 AABCB,