词根词缀记忆大全----SLEP版本

英语词根词缀记忆大全
第一部分通过词缀认识单词（常用前缀一）
1、a-
①加在单词或词根前面，表示"不，无，非"
acentric 无中心的（a+centric中心的）
asocial 不好社交的（a+social好社交的）
amoral 非道德性的（a+moral道德的；注意：immoral不道德的）
apolitical. 不关政治的（a+political政治的）
②加在单词前，表示"在…，…的"
asleep 睡着的（a+sleep睡觉）
aside 在边上（a+side旁边）
ahead 在前地（a+head头）
alive 活的（a+live活）
awash .泛滥的（a+wash冲洗）
2、ab-,abs-加在词根前，表示"相反，变坏，离去"等
abnormal 反常的（ab+normal正常的）
abuse 滥用（ab+use用→用坏→滥用）
absorb 吸收（ab+sorb吸收→吸收掉）
absent 缺席的（ab+sent出现→没有出现→缺席的）
3、ab-,ac-,ad-,af-,ag-,an-,ap-,ar-,as-,at-等加在同辅音字母的词根前，表示"一再"等加强意accomplish强制（ac+cent唱歌→一再唱出→强调）
accumulate积累（ac+cumul堆积+ate→堆积起来→积累）
afford买得起（af+ford拿出→一再拿出{钱}→买得起）
affirm肯定（af+firm坚定→肯定）
aggression侵略，进攻（ag+gress走+ion→一再往前走→进攻）
aggrandize扩大（ag+grand大→一再大→扩大[权力]等）
aggravate恶化（ag+grav重+ate病加重）
announce通告（an+nounce通知→通告）
appreciate欣赏（ap+reci价值+ate→一再给价→欣赏）
appoint指定，任命（ap+point指→指定）
arrange安排（ar+range排列→安排）
arrest逮捕，阻止（ar+rest休息→不让动→逮捕）
attend（at+tend关心→关心到了→出度）
attract吸引（拉→拉过来→吸引）
attest证实（at+test试验→一再试验→证实）
4、anti-表示"反对，相反"
antiwar反战的（anti+war战争）
antipathy反感（anti+pathy感情）
antithesis对立；反论（anti+thesis论文；观点）
5、人民―（1）popul
population[popul人民→居民，-ation名词字尾]全体居民，人口
populous [popul人民→居民，-ous…的]人口稠密的
人民－（２）dem(o)
democracy[demo人民，cracy统治；"人民统治"→人民做主→]民主；民主政治，民主政体；民主主义
democrat[见上，crat主张…统治的人]民主主义者
democratism[见上，-ism主义]民主主义
6、be-
①构成动词，表示"使…成为"
beguile欺骗（be+guile欺骗）
belie掩盖（be+lie说慌）
befriend友好对待（be+friend朋友）
befool欺骗（be+fool笨蛋→使人成笨蛋→欺骗别人）
befall降临；发生（be+fall掉下→掉下来→发生）
belittle小看(be+little小→小看人)
bewilder使…迷惑（be+wilder迷惑）
②构成一些介词
before在前面（be+fore前面）
beneath在下面（be+neath下面）
7、bene- 表示"善，好"
benewolent好意的（bene+vol意愿+ent→好意的）benefaction好事；恩惠（bene+fact做+ion→好事）
8、bi-表示"两个，两"
biweekly双周刊（bi+week星期+ly→两星期）
bilingual双语种的（bi+lingu语言+al→双语的）
9、by-表示"在旁边，副的"
byproduct副产品（by+product产品）
byroad辅路（by+road路）
byway小道（by+way小路）
bygone过时的（by+gone过去的）
bypass旁路；忽略（by+pass通过→从旁边通过→忽略）
by work副业（by+work工作）
10、circum-表示"环绕，周围"
circumcise环割（circum+cise切→环切）
circumnavigate环航世界（circum+navigate航行）circumspect小心谨慎的（circum+stance站→站在周围→环境）
11、co-表示"共同"，通常放在元音词根前
Cooperation合作(co+operation操作→共同操作→合作)
Coexist共存(co+exist存在)
Cohere附着；粘着(co+here粘→粘在一起)
Coincide一致，符合，巧合(co+in进+cide掉下→共同掉进来→巧合)
Coordinate协调：同等的(co+ordin顺序+ate→顺序一样→同等的引申为平等；协调) 12、col-,cor在同辅音词根前，表示"共同"
collocate并置，排列(col+loc地方+ate→放在同一地方→排列)
collapse倒塌(col+lapse滑倒→全部滑倒→倒塌)
collate校对(col+late放→放到一起→校对)
corroborate证实(cor+robor力量+ate→用力量→证实)
13、com-,con-表示"共同"
compassion同情(com+passion爱国者→同胞)
compatriot同胞(com+patriot动→大家一起动→动乱)
commemorate纪念(com+memor记住+ate→大家一起记住→纪念)
compress压缩(com+press压→一起压→压缩)
conclude结束；总结(con+clude关闭→全部关闭→结束)
confirm坚定；证实(con+firm坚定)
consolidate巩固，加强(con+solid坚固+ate→成为大家的财产→没收)
Conflict冲突（con+flict打→一起打斗→冲突）
14.contra-表示"反对，相反"
contrary相反的（contra+ary→相反的）
contradict反驳；矛盾（contra+dict说→反着说→反驳）
15.counter-表示"反对，相反"
counteract对抗；抵消（counter+act行为→反着行动→对抗）
counterbalance平衡（counter+balance平衡→两边一样→达到平衡）countermand撤消（counter+mand命令→反命令→撤消〔命令〕）
16.de-
①表示"去掉，变坏，离开，变慢，向下"等
desalt除去盐分（de+salt盐→去掉盐分）
deforest砍伐森林（de+forest森林→去掉森林）
17.dis-
①表示"不，消失掉"
dislike不喜欢（dis+like喜爱→不喜爱）
disorder无秩序（dis+order顺序→没有顺序）
dishonest不诚实的（dis+honest诚实的）
disappear消失（dis+appear出现→不出现→消失）
disproof反证，反驳（dis+proof证实→不证实→反证）
discourage使失去勇气（dis+courage勇气）
disarm解除武装（dis+arm武装→去掉武装）
②表示"分开，分离"
distract分心（dis+tract拉→把〔心〕拉开→分心）
distend膨胀（dis+tend拉→分开拉→膨胀）
dismiss解散；开除（dis+miss送→送出→解散）
discard丢弃，抛弃（dis+card扔→扔出去）
18.ex-
①表示"出，出去"
exclude排外（ex+clude关闭→关出去→排外）
expel赶出，逐出（ex+pel推→推出去→逐出）
expose暴露（ex+plse放→放出去→暴露）
exalt使升高（ex+alt高→高出来→升高）
extract抽出，拔出（ex+tract拉→拉出→拔出）
excise切除(ex+cise切→切出→切除)
exceed超过，超出（ex+ceed走→走出→超出）
②表示"前面的，前任的"
ex-wife前妻（ex前+wife妻子）
19.extra-表示"以外的，超过的"
extracurriculum课外的(extra+curriculum课程表) extraordinary格外的（extra+ordinary变通的→超出普通）extraviolet紫外线的（extra+violet紫色的）
20.fore-表示"前面，预先"
forestall阻止（fore+stall阻止）
forebode预兆；凶兆（fore+bode兆头→预兆）
forefather前人，祖先（fore+father父亲；祖先）
forearm前人，祖先（fore+amr胳膊）
forecast预料（fore+cast扔→预先扔下→预料）
21.un-
①表示“不，无，非，没有”
unreal不真实（un+real真实的）
unequal不平等的（un+equal平等的）
unfortunate不幸的（un+fortunate幸运的）
unabashed不害臊的（un＋abashed难为情的）unscrupulous肆无忌惮的（un+scrupulosu小心的）untoward不幸的；逆境的（un+toward顺利的→不顺的）unconditional无条件的(un+conditional有条件的)
unconscionable无节制的（un+conscionabe明智的）
unfailing无尽的，无穷的（un+failing有尽头；失败的→没有尽头的）unofficial非官方的（un+official官方的）
unjust非正义的（un+just公正的）
unworldly非尘世的（un+worldly世俗的）
uneducated未受教育的（un+educated有教养的）
uncivilized未开化的（un+civilized文明的）
undecided未决定的（un+decided决定的）
unalloyed未掺杂的（un+alloy合金，混合＋ed→没混合的）uncharted图上没标明的（un+chared图上标明的）
②表示“打开，解开，弄出”
unlock开锁（un+lock锁）
unbind解开（un+bind捆住）
unbutton解开钮扣（un+botton钮扣）
uncover揭开盖子（un+cover盖子）
undress脱衣服（un+dress衣服）
untomb掘墓（un+tomb墓）
unearth从地下挖出（un+earth土地）
unbosom吐露）（un+bosom胸→打开心胸→吐露）
unravel解开；拆散（un+ravel纠缠）
22.under-
①表示“在…下”
underground地下的（under+ground地）
underwrite在…下面写（under+write写）
underline划线于…下（under+line线，在字底下划线，引申为强调）undersea在海底（under+sea海）
undermine破坏，损坏（under+mine挖→挖墙角）
underling下属（under+ling小人物→下属）
underclothing内衣裤（under+clothing衣服）
underwear内衣（under+wear穿衣服）
②表示“不足，不够”
underestimate估计不足（under+estimate估计）
underplay对…轻描淡写（under+play玩→没玩够→说得不够的）
underpopulated人口稀少的（under+populated有人住的）
underdeveloped不发达的（under+developed发展→发展不够）
undersized不够大的（under+sized大的→不够大的）
③表示“副手”
underagent副代理人（under+agent代理人）
underofficer下级官员（under+officer官员）
1．What would you like (tell) us about your hometown?
2．Your brother (speak) English very well? Yes, he .
3．The clothes are those (shop).
4．What do you buy so many vegetables for? (make)dumplings.
5．I remember (buy)a shirt like this, but I can’t remember where I put it.
6．Please take another way. This road (mend).
7．The line of people (be)endless.
8．What do you think (make) him (change) his mind yesterday?
9．Why don’t you make yourself (hear)clearly?
10．The doctors are trying their best to save the (die) boy.
11．Doctors say (prevent) is better than cure.
12．The boy did his homework so (care) that the teacher got angry.
13．Mr. Smith will give us a speech Y ou (learn) what you (never
learn).
14．If you answer the questions (correct), you can’t pass the exam (success)
15．We all think good (lead) should be confident and imaginative.
16．He’s (modest) of the three. We all like him.
17．Although he is thin, he is a man of great .(strong)
18．We could see the (happy) on his face after he heard the bad news.
19．Han Mei (prefer) English to Chinese last term.
20．We think it (necessary) to give students tests every day. If so, the students will be very tired. 21．David is (busy). He’s good at (plan) things ahead.
22．Our English teacher uses different (act) to keep us (interest) in class. 23．(much) you eat, the (health) you’ll be, because (eat) too much will make you (health).
24．Could you tell me where the 28th Olympic Games (hold)?
25．It’s raining even (heavy). I really don’t know what to do.
26．You can’t be a film star. You should be (real) from now on.
27．You have to keep (quiet) while you (watch) the film.
28．I saw a film (star) Gongli and (direct) by Zhang Yimou yesterday.
29．We like romantic films because they usually have happy (end).
30．When the doctor arrived, the patient (die) for ten minutas.
31．The old man was the first one (call) the police after the accident.
32．No one except Any Amy and Tom (be) to China before.
33．If you are not (good) by then, I’ll take you to see the doctor.
34．Many thousands of trees should (plant) on the mountains.
35．The train just (leave). You have to wait for the next.
36．A new bridge (build) over the river last year.
37．My father often (tell) us a story in the evening. This evening. He (tell) two stories.
38．Could you speak a little (loud)? I can’t hear you.
39．Five years (pass) since I (meet) him last.
40．When seeing the girl yesterday, I just forgot when (meet ) her before.
41．The problems between the countries should be dealt with (peace).
42．It is my mother’s (four) birthday today.
43．I think this book is well worth (see).
44．There (be) some rice and noodles on the table.
45．Some rice and noodles (be)on the table just now.
46．In front of the house (be) some flowers.
47．Would you please (not smoke) here?
48．Everyone seems to enjoy (they) a lot.
49．It’s half an (hour) from my home to the park on foot.
50．It’s thirty (minute) walk from my home to the park.
51．After (read), the book should (pass) onto the next student.
52．The victim (see) (walk) along the street at that moment.
53．The police (search) the house for the thief or (check) the scene for fingerprints and other clues when you (see) them?
54．Hello Kitty smiled while we (clap) our hands for him?
55．Great changes (take) place during the past few yesrs.
56．By the end of last month, no new bird flu cases (find) in our city.
57．It’s (frighten) story I ever (hear).
58．Millie often (miss) her family when she was out.
59．They have decided to take no (far) action.
60．Many people used to (write) to friends. Nowadays people are used to （send）to friends.
61．（safe）is the most important thing.
62．We should speak to the old even (polite).
63．I won’t go to the party unless I (invite).
64．He is so careless that his homework (full) with mistakes.
65．She said if she (give) another chance, she (do) it much better.
66．In class, the teacher told us there (be) twelve months in a year.
67．He with his classmates often (spend) as much as he can (help) the poor.
68．The murder (occur) before the police arrived.
69．Three (five) of the students in our class like English best.
70．My mother (cook) when the telephone rang.
71．You should not devote too much time to (solve) the problem72．Why not (visit) our local theatre now?
73．Dried fish always tastes (salt).
74．I think Lucy is (young) of the two.
75．We look forward to (see) you at the party.
76．How much this pair of jeans (cost)?
77．You (help) her with her English next week, aren’t you?
78．This book is (help) to the children.
79．She plays and sings well, She is very (music).
80．He was ill yesterday. He is even (ill) today.
81．Tell your friend (not be) late this afternoon.
82．Listen! The children (chat) in the next room.
83．There (be) a softball match tonight.
84．Do you like the curtain (hang) on the wall?
85．We had a (please) evening at Ann’s house.
86．Between my parents, my father looks (old).
87．What language (speak) in China?
88．The twins (stay) in London for a week last year.
89．you (have) a good rest last night?
90．My cousin (not do) her homework on Sundays.
91．I didn’t know what (happen) to China in a century.
92．He said that the computer (use) the next day.
93．The dog (lie) on the floor when I came in.
94．He’ll telephone us as soon as he (arrive) there.
95．She found a purse (lie) on the floor when she came into the room. 96．Simon made a (decide) not to go on the school trip next week.
97．We must do something to prevent the wooden bridge from (wash) away. 98．We were told that CCTV3 (cover) live the Super Girl the next week. 99．Mary is an (act) girl. She seldom takes part in school (act). 100．Have you received my (invite) letter?
1．To tell 2．Does…speak does 3．Shoppers 4．To make
5．Baying 6．Is being mended 7．Is 8．made…change 9．heard 10．Dying 11．prevention 12．carelessly 13．Will learn , have never learnt 14．In correctly, successfully 15．Leaders 16．The most modest 17．Strength 18．unhappiness 19．preferred 20．Unnecessary 21．Businesslike
22．Activities, interested 23．The more, the unhealthier, eating, unhealthy 24．Was held 25．Mere heavily 26．More realistic
27．quiet, are watching 28．Starring, directed
29．Ending 30．Had been dead 31．To call 32．has been 33．Well 34．Be planted 35．has…left 36．Was built 37．Tells, will tell 38．More loudly/louder
39．Has passed, met 40．To meet 41．peacefully 42．Fortieth 43．Seeing 44．Is 45．Were
46．Are 47．Not smoke 48．Themselves 49．Hour
50．Minutes 51．Being read, be passed
52．Was seen, walking 53．Were, searching, checking
54．Were clapping 55．Have taken
56．Had been found 57．The most frighting, have heard
58．Missed 59．Further 60．Write …, sending
61．Safety 62．More politely 63．Am invited
64．Is filled 65．Was given, would do 66．Are
67．Spends, helping 68．Had occurred 69．fifths
70．Was cooking 71．Solving 72．visit
73．Salty 74．The younger 75．Seeing 76．Does…cost
77．Are going to help 78．Helpful 79．musical
80．Worse 81．Not to be 82．Are chatting 83．Will be 84．Hanging 85．Pleasant 86．Older 87．Is spoken 88．Stayed 89．Did…have 90．Doesn’t do
91．Would happen 92．Wonlel be used 93．Was lying 94．Arrives 95．Lying 96．Decision 97．Being washed 98．Would cover 99．active, activities
100．invitation。