The only way that they can preserve their history is to recount it as sagas -- legends handed down from one generation of another.These legends are useful because they can tell us something about migrations of people who lived long ago, but none could wri
他們保存歷史的唯一辦法是將歷史當(dāng)作傳說講述，由講述人一代接一代地將史實(shí)描述為傳奇故事口傳下來。
新概念英語第四冊(cè) Lesson 1 Finding fossil man

?? 句中詞匯解析

從本句中提取的重要詞匯

preserve [pr?'z?v] 詞頻2 詞根: serv
vt. 保護(hù);保持，保存;腌制食物;防腐處理; vi. 保鮮;保持原狀;做蜜餞;禁獵; n. 蜜餞;防護(hù)用品;禁獵地;獨(dú)占的事物（或范圍）;
?? pre預(yù)先+serve保持→預(yù)先保留→保存
"Names of people in the book were changed to preserve anonymity."
為了姓名保密，書中的人用的都是化名。
近義：protect, save, shelter, defend, guard, embalm 反義：quit, stop, leave, desist, cut, finish
history ['h?stri] 詞頻1
n. 歷史，歷史學(xué);發(fā)展史;履歷，經(jīng)歷;（某地的）沿革;
?? histor過去發(fā)生的事 + y 表名詞→ 歷史；個(gè)人經(jīng)歷
"The 2012 Nobel Prize in Literature was awarded to Mo Yan"who with hallucinatory realism merges folk tales, history and the contemporary"."
2012年諾貝爾文學(xué)獎(jiǎng)得主為莫言，他“很好地將魔幻現(xiàn)實(shí)與民間故事、歷史與當(dāng)代結(jié)合在一起”。
近義：archives, papers, past, background, record, records
generation ['d??n?'re??n] 詞頻2 詞根: gen
n. 一代人;代（約30年），時(shí)代;生殖;產(chǎn)生;
?? gener出生，產(chǎn)生 + ation 表示行為狀態(tài)、過程 → n.一代，一代人；產(chǎn)生
"This book was handed down from generation to generation."
這本書世代相傳.
近義：lifetime, period, season, time, chapter, age
useful ['jusfl] 詞頻1 詞根: use
adj. 有用的，有益的，有幫助的;令人滿意的;
?? use用+ful可…的” →有用的
"The memory expansion cards are useful adjuncts to the computer."
內(nèi)存擴(kuò)充卡是計(jì)算機(jī)很有用的附件。
近義：helpful, assistive, available, profitable, purposive, serviceable 反義：idle, inane, ineffective, insignificant, lousy, needless
because [b?'k?z] 詞頻1 詞根: be
conj. 因?yàn)?
?? cause, cuse 表原因,目的;司法程序,訴訟
"He was arrested because of his political affiliation."
他因所屬政黨的關(guān)系而被捕。
近義：since, whereas, for, forasmuchas

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