- semi半 - bi 两个 vice-president semifinal, 后 缀 后 缀 例 词 例 词northward, modernize, semicircle, 副 -ward(s) forward, -ize realize, semi-automatic backward, downward mechanize, criticize, slowly, quickly, carefully, widen, strengthen, lengthen, loudly, happily, friendly sharpen, widen, shorten, quicken, deepen -fy bicycle, biennial两年一词 -ly 动 -en 次的 词 tri 三个 triangle三角形, tricycle三轮脚踏车, triplets三胞胎 Simplify, beautify, terrify, 三、转化 Conversion: 指一个词不变化词mul- 多，多multiply, 形，而由一种此类转化为另一种词类或几种种 multi-national, 词类。 multi-coloured 1. 名词和动词之间的转化telephone电话—kilo千 - drink喝—饮料, record录音—记录, name, date, hand, study,
2. 形容词转化为动词 perfect完美的——使完善 3.名词转化为形容词(副词) front前面——前面的
4.形容词转化为名词 chief 主要的——首领
训练要旨：构词法是英语学习的一个重点，也是近年来常考的项目。特别是在词语辨析的综合运用中，对词汇掌握的要求越来越高。检测构词法，在阅读理解中，已不把这种词汇看作生词，而是把这类词的理解看作学生通过对构词法知识的学习，应该具备的一种能力。如有的生词，只要其词根是学生们该掌握的或熟悉的,只是加上了前缀或后缀，再者或是合成词等，命题人就认为不必再注出汉语注释。
kilometre, kilogram 打电话, mirror镜子—像镜子一样反映, 1.That man was________enough not to tell the manager that he would not do the job.A.care B. careful C. careless Dcarelessness
2.The soldier died for saving the child，so his________ is heavier than Mount Tai. A. die B. dead C. died D. death
3.The child looked_______ at his brother who was badly wounded. A. sadly B. sadness C. sadly D. sad
4.He is an expert at chemistry. We all call him a ________. A. chemistry B. chemical C. chemis D. physician
5.The three- ________chair isn’t suitable for a young child. He may fall off. A. legging B .legged C. legs D.leged
6.Stephenson became the________railway engineer in the world. A. lead B. leader C. leading D. leadership
7.When the teacher praised him for working out the maths problem，Jack looked_______about at his classmates.
A.proud B.proudly C.pride D. pridely
8.To everyone’s ________, the girl finished the job quite well. A.satisfied B.satisfactory C.satisfying D.satisfaction
9.—What are you doing here? —Oh，my teacher asked me to write a passage about ________in English.
—You can write______ _passage in English? A.600 words；a 600-words B.600-word；a 600-words
C.600 words；a 600-word D.600 words；a
600-words
10.No one should enter the spot without the________of the police. A.permit B.permission C.permitting D.permittence
11You must come with us to the police _______.Our head is waiting for you.A.headquarters B.headline C.headmaster D.headache
12.Letting that animal escape was no accident；you did it ________.A.intend B.intention C.intentionally D.intentional
13.The shop owner welcomed all the guests with a________smile. A.practice B.practise C.practical D.practiced
14.The_______ordered him to pay a $100 fine. A.judger B.judgment C.judge D.judgement
15.My TV is out of order.Can you tell me what is the________news about Iraq War? A.lately B.latest C.later D.latter
16.The Great Wall is more than 6000 li in ________. A.longer B.length C.long D.longing
17.To my ________，I passed the exam easily. A.joy B.joyful C.joyless D.joyness
18.Canada is mainly an________country. A.English-speaking B.speak-English C.spoken-English D.English-spoken
19.How________ he is! He is always acting________.He is really a ________. A.foolish；foolishly；fool B.fool；foolish；fool C.foolish；fool；fool D.foolishly；foolish；fool
20.The necklace that she lost is very expensive.It’s of great ________. A.valuable B.value C.valueless D.unvaluable
21.There were________fish in the river in South America. A.in danger B.danger C.dangerous D.dangerless
22.The letter “b” in the word “doubt” is________. A.sound B.silent C.silence D.sounded
23.The child looked at me________. A.stranger B.strangely C.strange D.strangeless
24.The black people were against slavery and fought for their________bravely. A.free B.freely C.freedom D.frees
25.What you said sounded________ but in fact it was untrue. A.reasonable B.reasonful C.reasonless D.unreason
26.We have to learn________technology from other countries. A.advance B.advancing C.advantage D.advanced
27.The children live in a village ________.They come here almost every day. A.nearby B.near C.nearly D.near by
28.Mr Black is an ________in the army，not an________in the government.You can not easily find him in his________.
A .official；officer；office B.officer；office；official C.official；official；official D.officer；official；office
29.You’d better give up smoking if you want to keep ________.A.health B.healthy C.healthily D.healthier
30.________ speaking，I didn’t do it on purpose. A.Honestly B.Honest C.Honesty D.Dishonest
31.It sounds like a good plan，but there are some________difficulties in carrying it out.
A.practiced B.practical C.practice D.practicing
32.His father possesses a________factory，which does most of the pollution to this river.
A.paper-make B.paper-making C.papers-made D.paper-made
33.Marx left his homeland for some________reasons. A.politically B.politics C.political D.politician
34.It’s________to persuade him to give up smoking.He’s very stubborn.A.possible B.possibly C.impossible D.impossibility
35.Dan caught two________birds in the wood last week and they are still________in the cage.
A.alive；live B.live；live C.live；alive D.alive；alive
36.The doctor said that the old man’s condition was__and that they had tried their best. A.hope B.hoped C.hopeful D.hopeless
37.Ann felt so________that she could hardly open her eyes. A.sleepy B.asleep C.sleep D.sleeping
38.We stood there______at the_____sight.A.frightened；frightful B.frightening frightful C.fright；frightening D.frightful；fright
39.The doctor’s advice________him from drinking and smoking. A.encouraged B.couraged C.encouragement D.discouraged
40I’d like to buy a house,modern,comfortable and above all in a quiet_.A.neighbour B.neighbourhood C.neighbours Dneighbour’s Ⅱ.改错练习(每小题有一个构词法错误，请找出并更正)
1.The Milu deer are living in the wild in a natural park. 2.This blouse is fit for him at all.It’s too long and the color has run.
3.The possibly that the majority of the labor force will work at home is often discussed.
4.We must strength government of the people，by the people and for the people. 5.The sperm whale can dive to a deep of more than 1000 meters in the sea. 6.He is a very famous actress.He has played many important parts in different films. 7.Personal，I’d rather stay at home watching TV. 8.Because of her ill，she can’t go out for the sight-seeing.
9.Thank you for your describe of the conditions here. 10.It’s really dust in this room.It’s a long time since someone last lived in it.
11.We all don’t know how dark happens. 12.He opened the envelope，folded the letter and began to read it.
13.She offered us lots of value information，which played an important part in catching the thief.