专题10.构词法考点聚焦和精讲(原卷版).docx
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1、构词法考点聚焦和精讲【中考构词法考点聚焦】1、转化法;2、派生法;3、合成法;4、截短法(缩略法);5、混合法(混成法);6、首尾字母缩略法。英语的构词法主要有:转化法、派生法、合成法、截短法(缩略法)、混合法(混成法)和首尾字母缩略法。一 转化法在英语中,有的名词可作动词,有的形容词可作副词或动词,这种把一种词性用作另一种词性而词形不变的方法叫做转化法。1. 动词转化为名词:很多动词可以转化为名词,大多意思没有多大的变化(如下);有时意思有一定变化(如下);有的与一个动词和不定冠词构成短语,表示一个动作(如下)。Lets go out for a . 我们到外面去散步吧。Lets have
2、a . 咱们游泳吧。He is a man of strong . 他是一个体格健壮的汉子。2. 名词转化为动词:很多表示物件(如下),身体部位(如下),某类人(如下)的名词可以用作动词来表示动作,某些抽象名词(如下)也可作动词,Did you a seat on the plane? 你订好飞机座位了吗?Please me the book. 请把那本书递给我。She her husband back to health. 她看护丈夫,使他恢复了健康。We together. 我们在一起吃了午餐。3. 形容词转化为动词:有少数形容词可以转化为动词。1.We will try our best
3、 to our living conditions. 我们要尽力改善我们的生活状况。2.He down at the crossroad. 他在十字路口减速。3.Please up the cold meat. 请把冷肉热一下。4. 副词转化为动词:有少数副词可转化为动词。Murder will . (谚语)恶事终必将败露。5. 形容词转化为名词:表示颜色的形容词常可转化为名词(如下);某些形容词如old, young, poor, rich, wounded, injured等与the连用,表示一类人,做主语时,谓语用复数(如下)。You should be dressed in at th
4、e funeral. 你在葬礼中该穿黑色衣服。 in our village are living a happy life. 我们村的老年人过着幸福的生活。 二 派生法在词根前面加前缀或在词根后面加后缀构成一个与原单词意义相近或截然相反的新词叫做派生法。加在单词前面的词缀叫前缀,加在单词后面的词缀叫后缀。1. 前缀:除少数前缀外,前缀一般改变单词的意义,不改变词性;后缀一般改变词类,而不引起词义的变化。(1)表示否定意义的前缀,在单词的前面加这类前缀常构成与该词意义相反的新词。常用的否定前缀有:前 缀例 词dis- 主要加在名词、形容词,动词之前disappear消失;dislike 不喜欢
5、;dishonest 不诚实的;disorder混乱,骚乱;disadvantage缺点;dishonorable不光彩的;disagree不同意;dissimilar不同的im- 加在字母m, b, p之前impossible不可能的;impolite粗鲁的,无礼的in- 常加在形容词,名词之前incorrect不正确的;informal非正式的;indirect间接的;inability无能力;inaccurate不准确的mis- 加在动词、名词前mistake 错误;misuse 错用misunderstand误解;misjudge误判;misfortune不幸;un- 主要放于名词,形
6、容词,副词前面unhappy不愉快的;unlucky 不幸的;untrue 不真实的;unfair不公平的;unknown未知的,陌生的;unable不会/能的;unfriendly 不友好的;unhealthy不健康的non- 加在形容词、名词前non-existence不存在;non-essential非本质的,不重要的non-smoker 非吸烟者ir- 放在以r开头的英语单词前面irregular不稳固的;irresistable不可抵抗的、irresolvable不能分解的,不能解决的de- 加在名词、形容词前demobilize遣散,使复员;decolor 脱色,漂白anti- 加
7、在名词、形容词前边anti-Japanese抗日战争;antigas防毒气的;antisocial反社会的counter- 加在名词、动词前counterattack反攻,反击;counteract抵抗阻碍;counterrevolution反革命il- 主要加在以1开头的单词的前边illegal非法的;illiterate文盲的 没有文化的;illogical不合逻辑的(2)表示其他意义的前缀常用的有:前 缀例 词a- 多构成表语形容词alone单独的;asleep睡着的;awake醒着的auto- 表示“自动”autochart自动图表;autobiography自传;Autonomous
8、自治的co- 表示“共同”cooperate合作;co-worker同事down- 表示“往下”download下载;downstairs下楼en- 表示“使”enjoy使高兴;endanger(使)遇危险;enlarge变大;enable(使)能够fore- 表示“前的”forehead额头;foresee预见inter- 表示“互相,在之间”internet互联网;international国际的kilo- 表示“千”kilometre千米,公里;kilogram千克,公斤man-表示“人,由人”man-made人造的,人工的,合成的mid- 表示“中间的”midnight 午夜;mid-
9、autumn中秋micro- 表示“微观的,小的”microfilm缩微胶卷;microphone话筒;micro-economy微观经济re- 表示“重新,再;又”reuse再用;retell复述;rewrite重写;rebuild重建sub- 表示“下面的;次;小”subway地铁;subconscious下(潜)意识;submarine潜艇super- 表示“超级的”superman 超人;supermarket超市;supergirl超级女孩tele- 表示“远的,电信的(强调距离)”telephone电话;telegraph;电报;telescope望远镜;television 电视
10、2. 后缀:英语单词不仅可以通过加前缀构成新词,也可加后缀构成新词。后缀通常会改变单词的词性,构成意义相近的其他词性;少数后缀还会改变词义,变为与原来词义相反的新词。(1)构成名词的后缀常用的有后 缀例 词-(a)n 表示“某国人”Australian澳大利亚人;Italian意大利人;Canadian加拿大人;European欧洲人-ance, -ence表示“性质,程度”attendance出勤率;acceptance接受;assistance帮助;dependence依靠-ce表示“性质,程度”difference不同之处;importance重要性;patience耐性;-ese 表示
11、“某国人”Japanese日本人;Chinese中国人;Vietnamese越南人-ess表示“雌性”actress女演员;lioness 母狮子-(e)r表示“从事某事的人”teacher教师;singer歌手;driver司机;writer作家;runner跑步者;winner胜利者-ful 表示某容器的容量handful一把的;mouthful一口之量的;glassful一杯之量的-hood表示关系或抽象意义motherhood母亲身份;childhood童年;girlhood少女时代;neighborhood邻居-ian表示“精通的人”musician音乐家-ing表示“动作的过程,结
12、果”feeling感觉,触觉;感情,情绪;reading阅读,朗读;读物;building建筑;建筑物-ion,-sion,-tion,-ation,-ition,表示“行为的过程,结果,状况”action行动;solution解决方案;conclusion结论;结局; expression表达;correction改正,修正;pronunciation发音;读法;invitation邀请;decision决定;discussion讨论-ist表示“专业人员”pianist 钢琴家;scientist 科学家;artist艺术家;typist打字员;violinist小提琴家-ment表示“性
13、质;状态”agreement协议;movement 运动;development发展;punishment惩罚-ness表示“性质;状态”happiness 幸福;business 事务;illness疾病;sadness悲痛;kindness和蔼;greatness伟大-or表示“从事某事的人”actor 演员;sailor 海员;visitor访问者,参观者;inventor发明家/人;创造者-ship 表示状态、抽象概念friendship友谊;membership会员资格;leadership领导权;relationship关系-thwarmth温暖;truth 真理;length 长
14、度;youth青年;death死亡;growth成长-ty 表示特性或情况difficulty困难;safety安全;beauty美人;ability能力-ure表示“行为,结果”failure失败;故障;pleasure快乐;希望;娱乐;令人高兴的事(2)构成动词的后缀常用的有后 缀例 词-(e)n多用于形容词名词后变动词“使得,变得”widen加宽;sharpen削;变尖;loosen 使松散;strengthen加强;lessen减少-fy表示“使化”beautify美化;purify提纯-ize表示“使成为”realize意识到;organize组织(3)构成形容词的后缀常用的有后 缀
15、例 词-able表示“有能力的”reasonable有道理的;eatable 能吃的;enjoyable 令人愉快的-alnatural自然的;national 民族的,国家的;-an/ian表示“某国(人)的”American美国(人)的;Australian澳大利亚(人)的;Indian印度(人)的-edmoved受感动的-en 多用于表示材料的名词后“由构成的”woolen羊毛的;羊毛制的;golden金的;wooden木制的;frighten恐吓-ent/-antpleasant令人愉快的;dependent依赖的;different不同的-ern表示“方向的”eastern东方的;s
16、outhern南方的;northern北方的western西方的-ese表示“某国人的”Chinese中国人的;Japanese日本人的-fulbeautiful美丽的;careful小心的;powerful强大的;colorful多彩的-ingmoving 感动的;encouraging 鼓舞人心的;exciting令人激动的;interesting有趣的-(ic)alelectric/electrical 电的;historic有历史性的;economical经济的;political政治的;scientific科学的-ishchildish孩子气的;selfish自私的;womanish
17、像女人的;bookish书呆子气的-iveactive积极的,collective集体的;decisive决定性的;native本国的-less 表示“否定”careless粗心的;useless 无用的;hopeless希望渺茫的;countless不可数的;helpless无助的-like表示“像的”girllike像女孩一样的;boylike像男孩一样的;motherlike像母亲一样的-lyfriendly友好的;yearly每年的;monthly每月的,weekly每周的;lovely可爱的;lively活泼的-ousfamous著名的;continuous连续不断的;delicio
18、us可口的-somehandsome英俊的,大方的;gladsome愉快的;tiresome疲惫的;lonesome孤独的-(t)ythirsty口渴的;noisy喧闹的;healthy健康的-y 表示“天气”snowy雪的;rainy下雨的;cloudy多云的;dusty多尘的【注意】后缀词-ing与-ed的区别:加-ing的后缀词形容词主语一般为物,表示“令人的”;加-ed的后缀词形容词,主语一般为人,表示“某人感到”。如:The movie was very interesting. All of us were interested in it. 那部电影很有趣。我们所有的人都对它感兴
19、趣。(interesting指的是电影有兴趣,而interested指的是人对电影感兴趣)(4)构成副词的常用后缀有后 缀例 词-ly主要用于形容词之后表示方式或程度angrily生气地;slowly慢慢地,beautifully美丽地;terribly可怕地-ward(s) 主要用于表示方位的词之后表示方向towards朝,向;eastward向东方地;backwards向后退地;upwards向上地;westward向西地;homeward向家去地-wiseotherwise否则;likewise同样地;clockwise顺时针方向地;(5)构成数词的后缀有后 缀例 词-teen (十几)
20、thirteen三十;fourteen十四;fifteen十五;sixteen十六;eighteen十八;nineteen十九-ty (几十)twenty二十;thirty三十;forty四十;fifty五十;sixty六十;eighty八十nineninety九十-th (构成序数词)fifth第五; sixth第六;sixteenth第十六;fortieth第四十;twenty-first第二十一三 合成法1合成名词名词名词:weekend ; 名词动词:daybreak ; 动名词名词:reading-room ; 代词名词:she-wolf ;动词名词:typewriter ; 名词及
21、物动词er/or:pain-killer ;形容词名词:gentleman ; 介词名词:afternoon ;现在分词名词:flying-fish ; 副词动词:outbreak ;名词动名词:handwriting ; 名词介词名词:editor-in-chief ;2合成形容词名词形容词 snow-white 名词现在分词 English-speaking 名词to名词 face-to-face 名词过去分词 man-made 数词名词 one-way 数词名词形容词 two-year-old 数词名词ed five-storeyed 动词副词 see-through 形容词名词 hig
22、h-class 形容词名词ed noble-minded 形容词形容词 light-blue 形容词现在分词 good-looking 副词形容词 ever-green 副词现在分词 hard-working 副词过去分词 well-known 副词名词 fast-food 介词名词 downhill 3合成动词: 名词动词sleep-walk 形容词动词white-wash 副词动词overthrow 4合成副词: 形容词名词hotfoot 形容词副词everywhere 副词副词however 介词名词beforehand 介词副词forever 5合成代词 代词宾格self hersel
23、f 物主代词self myself 形容词名词anything 6合成介词 副词名词inside 介词副词within 副词介词into 考点四 截短法(缩略法)截短法,即将单词缩写,词义和词性保持不变,主要有截头、去尾、截头去尾等形式。1截头:telephonephone; aeroplaneplane; omnibusbus 2去尾:mathematicsmaths; co-operateco-op; examinationexam; kilogramkilo; laboratorylab; taxicabtaxi; MondayMon.; JanuaryJan.3截头去尾:influen
24、zaflu; refrigeratorfridge; prescriptionscript 考点五 混合法(混成法)混合法是将两个词混合或各取一部分紧缩而成一个新词。后半部分表示主体;前半部分表示属性。如:news broadcastnewscast新闻广播;television broadcasttelecast电视播送;smoke and fogsmog烟雾;helicopter airportheliport直升飞机场。考点六 首尾字母缩略法首尾字母缩略法,即用单词首尾字母组成一个新词。读音主要有两种形式,即各字母分别读音;作为一个单词读音。如:very important person
25、 VIP (读字母音)要人;大人物;television TV (读字母音)电视;Testing of English as a Foreign Language TOEFL托福;North Atlantic Treaty Organization Nato北大西洋公约组织;save our ship SOS 国际呼救信号; World Trade Organization WTO世界贸易组织一词形变换1It is _(polite) to point at others when eating things.2I accepted an _(invite) to the meeting fr
26、om my boss.3Qian Xuesen became _(interest) in science when he was a young boy.4(2021盐城)Choose _(wise) how you spend your spare time and with whom you spend it.5You must be _(patience) with your students. 6Our geography teacher helps us know more about the _(nature) world.7It is _(danger) for a girl
27、to go out alone at night.8I wonder if I should tell her the _ (true)9. Take the medicine _ a day before meals, the you will be better. (two)10. Do you know the _ between the twins in front of you? (different)11. Everyone in our school hope Zhong Nanshan works less and lives_. (health)12. Of all the
28、languages, which do you think is _. (difficult)13. When people have difficulty_(solve) the problems, most of them often keep in silence.14. Tim is a good boy boy. He is always _(friend) to his classmates.15. At the _ of the class, Mr Tang told us that Yuan Longping passed away yesterday. (begin)16.
29、You should brush your _ twice a day to keep them healthy. (tooth)17. Its very _for a dog to cross a busy street. (danger)18. Janes mother looked tired and _. What happened to her? (worry)19. I dont believe it is the_. Something must be hidden.(true)20. My deskmate looked _, for he failed in the Engl
30、ish test. (happy)21. The young lady looked _ at me because I used her pen just now . (angry)22. Everyone is trying his best to solve the_problems.(environment)23. Its really _ for him to get there on time because he couldnt catch up with the last train. (possible)24. The old man likes to live alone.
31、Every day he reads newspaper_ in the garden. (quiet)25. He is a great scientist from _. (German)26. The girl is the most _ member in the school dancing group. (act)27. I am not used to the weather in Guangxi. It is _. (change)28. _, I have just got enough money to buy the new books. (lucky)29. Stayi
32、ng up at night is _ to our health.(harm)30. They will find some suitable ways to help those _ (home) people31. The children often get _(noise) in the classroom after class.32. Sometimes he spends his weekend _(fish), so his wife is always angry with him.33. Several _(foreign) came to visit our schoo
33、l last week, so I had a chance to talk with them.34. I think the red skirt looks as _(good)as the green one.35. John just got his _(driver) license. However, no one dares to get on his car.36. Look! Mrs Green is there. Lets go and say hello to_(she)?37. My dadr often _(enjoy) the TV plays in the eve
34、ning.38. Talking loudly in a library is very_(polite).39. After two hours discussion, they _ (final) reached an agreement.40. Usually news are _ (record) first and sent out later.41. John looks at his watch from time to time. Why is he so _ (patient)?42. How lucky the _ (win) of the game show is! A
35、seven-day trip abroad for free!43. The party yesterday was a big _(succeed). Everyone had a good time.二根据句子意思,用括号中所给英语单词的适当形式填空。(一)1. Even a child knows September is the _ month of a year.(nine)2. Our notebook computer _ 5 pounds and costs about $2,000.(weigh)3. Yesterday I _ a new dress at the Macy
36、s for my mum.(buy)4. I didnt want to be treated _ from anyone else.(different)5. She was _ in the kitchen when the light went out.(serve)(二)1. He _ (be) a volunteer in Ya-an, Sichuan since the earthquake happened. 2. Mr. Jiang is a learned person, and he has lots of _ (know). 3. The little girl is v
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