It seems that man was making a real effort to understand the seasons 20,000 years earlier than has been supposed.
看來人類早就致力于探索四季變遷了，比人們想像的要早20，000年。
新概念英語第三冊 Lesson 38 The first calender

?? 句中詞匯解析

從本句中提取的重要詞匯

effort ['?f?t] 詞頻1 詞根: fort
n. 努力，嘗試;工作;成就;杰作;
?? ef出+fort強(qiáng)大，力量→出力→努力
"She made a feeble effort to get to school on time."
她努力想按時趕到學(xué)校,但未成功.
近義：intent, pledge, pull, push, spirit, struggle 反義：heartsickness, hopelessness, intimidation, lassitude, tiredness, weariness
understand ['?nd?'st?nd] 詞頻1
vt.& vi. 懂，理解; vt. 了解;默認(rèn);聽說;領(lǐng)會;
?? under(under)+stand→懂；了解；通曉；認(rèn)為
"That's just an approximation, you understand."
你知道那僅僅是近似值。
近義：ideate, imagine, apprehend, interpret, assimilate, penetrate 反義：misapprehend, misconstrue, mishear, misinterpret, misrepresent, misread
making ['mek??]
n. 制造;產(chǎn)生的過程;成功改進(jìn)的手段;原料，材料; v. “make”的現(xiàn)在分詞;
"The old lady engaged herself in making clothes for her children."
這位老太太忙著為孩子們做衣服.
近義：manufacture, preparation, workmanship, confection, construct, construction
real ['ri:?l] 詞頻1 詞根: 統(tǒng)治
adj. 真的;真實(shí)的，現(xiàn)實(shí)的;事實(shí)上的;真誠的; adv. 真正，實(shí)在;確實(shí)地; n. 實(shí)在，現(xiàn)實(shí);實(shí)數(shù);
"I made a real balls-up of my exams."
我考試考得一塌糊涂。
近義：legitimate, authentic, sterling, true, truthful, unfeigned 反義：imaginary, utopical, visional, chimeric, chimerical, dreamlike
supposed [s?'p?uzd] 詞頻2
adj. （按規(guī)定、法律、協(xié)議等）（不）應(yīng)當(dāng);假定的;（只用于否定句）不準(zhǔn);（對某人所說的話表示氣憤或不大理解）那是什么意思; v. 料想( suppose的過去式和過去分詞);意味著;[用于被動語態(tài)]認(rèn)為應(yīng)該;[用于祈使句]讓;
"Am I supposed to finish the homework today?"
我今天是不是應(yīng)該完成這項作業(yè)？
近義：hypothetical, imaginary, assumed, assumptive, notional, phony 反義：legitimate, original, authentic, real, sterling, truthful

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