高頻詞、詞組系列前兩期（文末有連結）受到很多朋友的肯定和支持，我們今天推出第三期：材料與方法部分的高頻詞和詞組總結。
SCI論文的材料與方法部分，是SCI寫作者最容易模仿和改寫的部分，也可以說是全文寫作過程中寫作難度最低的部分。不過為了避免大段的摘抄而造成重複率過高，我們平時可以多積累相關的詞彙然後按照前人的文章進行改寫就行了。一般來說，只要滿足連續七個詞彙不重樣，查重的總體重複率不超過20%，與單篇文章的重複率不超過5%，都可以過查重這一關。接下來小編為大家總結了SCI論文材料與方法部分的高頻詞和詞組，希望對大家有所幫助。
常用動詞
實驗中常用動詞：
extracted, dissected, homogenized, separated, transfer, purchased, dissolved, chronically exposed, sacrificed, housed, deprived of, handled, placed, recorded, divided into, adopted, determine, performed, loaded, downloaded, diluted, performed, obtained, amplified, fused with, cloned into, employed, construct, described, allows, governs, implemented, split into, carried out, harboring, generate, incorporate,
兩物之間關係：compare to/with，depend on, based on, relies on, (strongly) associated with/to, related to,
「認為，說明」 的N種描述方式：assume, states, indicated, suggested, demonstrated, considered as
分配描述：respectively, randomly assigned, simultaneously, predominantly, mutually exclusive patterns.
動物處置：anesthetized, decapitated
實驗過程連接詞
介紹實驗過程的時候，肯定免不了對實驗順序的介紹。實驗有先後，關於順序的連接詞：
Initially, additionally, in addition, moreover, furthermore, hereafter, therefore, consistently, In practice, to this end, subsequently, briefly, then, finally, accordingly, recently, nevertheless, however, indeed,
有時候，在實驗方法的過程中，作者還會用實驗目的來進行段落之間的連接。讓實驗過程更有層次性。有關目的連接的表達方法：
To address the genetic burdens, to better understand the association, to test for the presence of sample or data, testing and verification of the presence, to overcome this limitation.
數據處理相關
材料與方法中，經常對實驗對象（病人、動物等）的實驗數據進行評估，非常高頻。「評估」 的常見表示方法有：
obtained, estimated, evaluated, assessed, measured, examined, investigate, explore, test the sensitivity and specificity of variables, identify, quantify, is characterized by。
實驗中常常涉及到對數據處理的部分。那文章中的數據可以有哪些被「處理」的方法呢：
deposited, classified, downloaded, revised, included, removed, normalized, combined, subdivided into, calculated, cross-check, summarized, originated from, described, available, detectable, define, scored, determined, generated with, using, applied with, categorize ... into ..., model, imputed, presented, determined, filtered, processed, background-corrected, normalized to internal controls, quality control, Images were captured, Freshly sorted XX cells, carried out.
數據描述：
High confidence, remarkably high, freely available，
樣本描述：
In all examined samples
實驗層次描述，生物學中常常分為四個層次：
in vivo是指的活體內，也就是動物模型。
in vitro是指的離體、體外的意思
ex vivo, 指的是活體取材，一部分動物實驗完成後取器官，或者指的是體外培養細胞體內的回輸實驗。
in silico，指的是生物分析實驗，用晶片、高通量測序等方法進行生信分析等實驗。
實驗倫理相關
患者知情同意書：participants provided informed consent，Written informed consent
納入患者：patient recruitment
倫理委員會：ethics committee/institutional review board (IRB)，Ethics board approval，Institute Animal Ethics Committee.
相關法律法規：relevant guidelines and regulations，
根據前人研究方法總結
為了簡化對實驗方法的描述，精煉文章文字。根據之前文獻描述的描述方法/研究：as previously described, in accordance with, complied with, from previously published studies, deciphered using the framework developed by previously, using previously described expression profiles, for some of the previously published samples, Previously published data in peer-review journals, Following previous work.
統計方法描述
在材料與方法的最後一部分，往往是對統計方法的描述。常見統計方法 (statistical tests)的描述：
t-test, χ2 tests, cox regression, Kaplan-Meier method, the receiver operating characteristic (ROC) curves, one-way ANOVAs, Bonferroni's multiple comparisons test, Mann-Whitney U tests, linear regression tests, Cox regression, variance (ANOVA) for quantitative features, Wilcoxon’s rank-sum test