名词 形容词 动词 副词
构词法：
1.名词：
一、词缀： A. v→n
V+ment eg:management V+ation eg:infomation V+tion eg:production V+sion eg:decision V+ion eg:education 练习：
Commit,appoint,civilize,confuse,consider,acquire,attract,impress,compose Congratulate,explain,depress
B. N+er
Eg: singer, teacher,cooker, silencer N+or: Eg:
练习：Observe,visit,report,visit,ski,learn,drink.
V+al:refuasl V+ing:building V+age:wastage
练习：Shop,store,feel,cook,end;gather,arrive,write,begin,remove,pass,marry N/adj→n:
N+hood:childhood Adj+hood:falsehood Friend+ship:friendship adj+ship:hardship N+dom:kinddom Adj+dom:freedom
练习：Relation,leader,boy,brother,adult,wise,citizen,member,lively,author,neighor,owner
adj→n: Greatness Coldness
练习:Weak,kind,happy,sad,strage,ill,ease.tired,dark,lazy,nervous,careless N+y:
Cloudy,sandy,snowy,sleepy
L练习:Dirty,suny,curly,salty,healthy,anger,rain,ease,silk,ice,wealth,wind,luck,noise,taste
2.形容词：
1. V→adj:有可能导致意思发生改变 V+ale:=V+ed
练习： Desirable,favorable,considerable, acceptable, drinkale, advisale, remakale,preferale
2. N+ous
Mountainous,joyous n+al
Cultural,traditional
练习：Tropic,globe,danger,center,environment,occasion,music,nature N+ful: useful,delight,hope,help
N+less: doubtless,careless,speechless
（2）前缀： 否定前缀：
In+adj:incomplete Ir+adj:irresponsible
练习：Legal,polite,regular,patient,capable,consistent,appopriate,correct,definite
Un+adj
Unwise.unforgettable：Noticeable,reasonable,grateful,limited,certain,cover,recongnizable,fashionable,do,tidy,fold,load,
Re+v:rewrite,repay Dis+v:disloya,dislike
练习：appear,close,continue,honest,chage,like,please, courege Mis+v:understand,lead,use,spell,report,print,plase
3.副词：
Adj+ly: happily,stragely N+ward:homeward,outward N+ary:elementary Adj+ive:active
4.动词：
Adj+en:
Sharpen,heigten
Hard.weak,broad,light,dark,red
N+ize:modernize,apology
Real,private,character,namal,critic,national,economy,
形容词可以修饰名词 beatiuful gil
名词可以修饰名词：man doctor
副词修饰动词：
不定冠词/定冠词+n：写作文的时候一定要注意