托福常考词汇词根总结.doc

托福考试常考词汇词根总结
ag,act,做,驱动,agent代理人,active活动的,积极的,
agr,农田,agriculture农业,agrarian田地的,
am,爱,亲爱,amicable友善的,amiable和蔼可亲的,
anim,心灵,精神,生命,animal动物,animate有生命的,
ann,enn,年,annual一年的,centennial一世纪的,
astro,星,astronomy天文学,astronaut宇宙航行员,
audi,听,audience听众,audible听得见的,
bell,战争,rebellion反叛,反抗,bellicose好战的,
bio,生命,生物,biology生物学,antibiotic抗生的,抗生素,
brev,短,brevity,简短,abbreviate缩短,节略,
cede,走,precedent先行的,在前的,precede先行,
cent,百,centimeter厘米,centigrade百分度的,
center,centr,中心,concentrate集中,centrifugal离心力的,
cide,cis,杀,切,suicide***,bactericide杀菌剂,
claim,clam,叫喊,exclaim惊叫,proclaim宣布,宣告,
clar,清楚,明白,declare表明,声明,clarify讲清楚,
clud,clos,关闭,close关闭,exclude排斥,
cogn,知道,recognize承认,cognitive认识的, 
cord,心,cordial衷心的,core核心,
cosm,宇宙,世界,osmic宇宙的,cosmos宇宙,
cred,相信,credibility可信,credit信任,
cur,cours,urrence出现,发生,current流通的,
cycl,圆,环,bicycle自行车,cyclone旋风,
di,日,diary日记,diarist记日记者,
dict,说,predict预言,indicate表示,
duc,duct,引导,conduct指导,induce引诱,
ed,吃,edible可吃的,edacity贪吃,
fact,做,制,factory工厂,manufacture制造,加工,
fer,带,拿,transfer转移,ferry渡船,
flu,流,fluent流利的,influenza流行性感冒,
form,形式,外形,transform改变,formula公式,
fract,frag破,折,fraction碎片,fragile易碎的,
fus,倾,注,溶化,fusion熔解,effuse泻出,
gen,起源,generate使产生,ic遗传的,
geo,地球,土地,geography地理,geology地质学,
grad,步,走,级,gradual逐步的,graduate毕业,
gram,写,记录,diagram图表,program节目单,方案,
graph,写,画,记录,photograph照像,autograph亲笔,手稿,
gress,行走,progress进