高频词的认知数量，是通过职称英语考试的基础，通过对教材单词的电脑统计我们在软件中新增了出现率指标(量化了的词频，而非经验选择)及词频等级的5级分类，从而使用户可以根据自身的情况，更科学的安排时 间。 a ability able abnormal about above absorb accept accident account achievement across act action active activity actually adapt add addition adopt adult advance advantage affect African after again against age agency ago agree air alarm alcohol alive all allow almost alone along already also although altitude always America American amount an analysis ancient and animal another answer ant anxiety any anyone anything apparently appear approach arctic area arm around artificial as Asia ask aspirin associate association at atmosphere attack attempt attract available average avoid away baby back bad bank base basic bath be beat because become bed before begin beginning behind being belief believe below benefit best better between beyond big bill billion biological biology bird birth bit black blame blast blind block blood blow blue board body bomb bone book born boss both bottom boundary brain brand break breast breed bridge bring Britain British build building burn business but buy by cable call can Canada cancer capable car carbon care carry case catch cause cell cent central century certain challenge chance change charge charter check chef chemical chemistry chicken child China Chinese chip choice choose chronic cigar cigarette circuit city claim class clear climate clock close cloud coal coffee cold colleague college color come committee common communicate community company compare competition complete complex computer concentration concern condition conduct conference conflict consider consumer contact contain contaminate continue control cook cope core cost could count country couple course cover crash create critical crop cross crystal culture cure current cut daily damage danger dangerous dark data day deal death decade decay decision decline decrease deep defect defend degree department depend deposit depress depression describe design destroy detect determine develop device diagnose diagnosis die diet difference different difficult digit digital direct direction director discover discovery discuss disease disorder distance distribute dive divide do doctor dog dollar dominate donor double down draw dream drill drink drive driver drop drug dry due during each ear early earth earthquake easily east easy eat economic economy education effect effective effort egg egypt either electrical electronic element elephant eliminate else emerge enable encourage end enemy energy engineer engineering England English enough entire environment error especially estimate europe european even event eventually ever every everyone everything evidence evolution examine example exchange exercise exist expect expensive experience experiment expert explain expose exposure extent extra extremely eye face facility fact factor fail fall family famous far fare farm fashion fast fat fear federal feed feel female few field fight figure fill film finally financial find finding finger fire firm first fish fit five fix flee flight float flood floor flow fly focus follow food for force forecast foreign forest form found four free French fresh friend from front fuel full fun function fund fur further future gain game gas gay gene general generally generate generation genetic Germany get give global go goal gold good goods govern government gravity great ground group grow growth habit half hand handle hang happen hard have hay hazard he head health healthy hear hearing heart heat height help her here hide high highly him his history hit hold hole home hope hormone horse hospital hot hour house how however huge human hundred hunt hurricane I ice idea identify if illness image imagine impact importance important impossible improve in include income increase India indicate individual industrial industry infant infect infection influence information injury inner inside instance instead institute institution intelligence intense interest international into involve iron island issue it its itself

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