欧美人妖在线二区|青青在线视频人视频在线|色资源站欧美在线|精品久久久久久午夜福利

  1. <span id="zkbu1"></span>
      相關(guān)文章 搜索相關(guān)課程
      • 萬物簡史:PART II CH 5敲石頭的人們(3)

        在那個愛好鉆研的時代,化石的由來長期困擾著人們,于是水成論者 和火成論者各執(zhí)己見~~~ ?《萬物簡史

      • 萬物簡史:PART II CH 6勢不兩立的科學(xué)(11)

        面的TIPS訓(xùn)練聽寫。這樣可以提高聽力準(zhǔn)確度,并為訓(xùn)練聽譯打下基礎(chǔ)哦~~~ TIPS聽寫訓(xùn)練點(diǎn):單詞拼寫,時態(tài),單復(fù)數(shù),連讀,長難句(請邊聽邊用符號先記下內(nèi)容,然后自己回頭組織語句,最后校對,不要逐字逐句聽寫) Hints: Hunterian Museum Mantell iguanas Aware that his finding would [-1-] upend what was understood about the past, and urged by his friend the Reverend William Buckland—he of the gowns and experimental appetite—[-2-] caution, Mantell devoted three [-3-] years to seeking evidence to support his conclusions. He sent the tooth to Cuvier in Paris for an opinion, but the great Frenchman dismissed it as being from a hippopotamus. (Cuvier later [-4-] handsomely for this uncharacteristic error.) [---5---] A hasty comparison confirmed the resemblance. And so Mantell's creature became Iguanodon, after a basking [-6-] lizard to which it was not in any manner related. entirely to proceed with painstaking apologized One day while doing research at the Hunterian Museum in London, Mantell fell into conversation with a fellow researcher who told him the tooth looked very like those of animals he had been studying, South American iguanas. tropical 曼特爾意識到,自己的發(fā)現(xiàn)會徹底推翻人們對過去的認(rèn)識。威廉?巴克蘭--那位身穿長袍、愛好試驗(yàn)的學(xué)者--也勸他小心行事。因此,曼特爾花了3年時間,努力尋找支持自己的結(jié)論的證據(jù)。他把牙齒送交巴黎的居維葉,征求他的看法,但那位偉大的法國人輕描淡寫地認(rèn)為,那只不過是河馬的牙齒。(居維葉姿態(tài)很高,后來為這個不常犯的錯誤道了歉。)有一天,曼特爾在倫敦的亨特博物館作研究,跟一位同事攀談起來。那位同事對他說,它看上去很像是他一直在研究的那種動物--南美鬣蜥的牙齒。他們馬上進(jìn)行了比較,確認(rèn)了它們的相似之處。于是,曼特爾手里的動物以熱帶一種愛曬太陽的蜥蜴命名,被叫做禽龍。其實(shí),二者之間沒有任何關(guān)系。 這篇材料你能聽出多少?點(diǎn)擊這里做聽寫,提高外語水平>>

      • 萬物簡史:PART II CH 5敲石頭的人們(12)

        就是人們常常把災(zāi)變論和水成論互相混淆的原因。災(zāi)變論尤其迎合巴克蘭這樣的教士的心理,這樣他們可以把《圣經(jīng)》里諾亞時代的洪水納入嚴(yán)肅的科學(xué)討論。均變論者恰恰相反,認(rèn)為地球上的變化是逐漸形成的,幾乎所

      • 萬物簡史:PART II CH 6勢不兩立的科學(xué)(5)

        出了絕種的理論。他認(rèn)為,地球不時經(jīng)歷全球性的災(zāi)難;在此過程中,一批批的生物徹底死亡。對于宗教人士來說,包括居維葉本人,這種看法具有令人不快的含義,因?yàn)檫@意味著上帝是捉摸不定的,莫名其妙的。上帝創(chuàng)造了物種,然后又消滅這些物種,他究

      • 萬物簡史:PART II CH 4事物的測定(9)

        牛頓因?yàn)椤对怼芬粫隽嗣?,哈雷卻遇到了麻煩。要不到該書的關(guān)鍵篇章還失去了工作報酬~~ ?《萬物簡史》推出部落節(jié)目版,戳這里訂閱: 書本的朗讀語音很charming的磁性英音~~~大家可以好好學(xué)著模仿哦~~~?。?因?yàn)樵鵀槊绹怂鶎?單詞采用美式拼法,不抄全文,然后聽寫單詞或詞組(用[-No-]表示)以及句子(用[---No---]表示)。請邊聽寫邊理解文意,根據(jù)上下文注意各句標(biāo)號,這樣有助于提高正確率。 Hints: frantic flattery erratic The Royal Society The History of Fishes Principia's production was not without drama. To Halley's horror, just as work was nearing completion Newton and Hooke fell into [-1-]over the priority for the inverse square law and Newton refused to release the crucial third [-2-], without which the first two made little sense. [---3---] Halley's traumas were not yet quite over. [---4---] The year before the society had backed a costly flop called The History of Fishes , and they now [-5-]that the market for a book on mathematical principles would be less than clamorous. Halley, whose means were not great, paid for the book's publication out of his own pocket. Newton, as was his custom, contributed nothing. [-6-], Halley at this time had just accepted a position as the society's clerk, and he was informed that the society could no longer afford to provide him with a promised salary of £50 per annum. [---7---] dispute volume Only with some frantic shuttle diplomacy and the most liberal applications of flattery did Halley manage finally to extract the concluding volume from the erratic professor. The Royal Society had promised to publish the work, but now pulled out, citing financial embarrassment. suspected To make matters worse He was to be paid instead in copies of The History of Fishes. 《原理》的產(chǎn)生不是不帶戲劇性的。令哈雷感到震驚的是,當(dāng)這項工作快要完成的時候,牛頓和胡克為誰先發(fā)明了平方反比定律吵了起來,牛頓拒絕公開關(guān)鍵的第三卷,而沒有這一卷,前面兩卷就意義不大。只是在進(jìn)行了緊張的穿梭外交,說了許多好話以后,哈雷才最后設(shè)法從那位脾氣怪僻的教授那里索得了最后一卷。   哈雷的煩惱并沒有完全結(jié)束。英國皇家學(xué)會本來答應(yīng)出版這部作品,但現(xiàn)在打了退堂鼓,說是財政有困難。前一年,該學(xué)會曾經(jīng)為《魚類史》下了賭注,該書成本很高,結(jié)果賠了老本;他們擔(dān)心一本關(guān)于數(shù)學(xué)原理的書不會有多大銷路。哈雷盡管不很富裕,還是自己掏錢支付了這萬物簡史本書的出版費(fèi)用。和以往一樣,牛頓分文不出。更糟糕的是,哈雷這時候剛剛接受學(xué)會的書記員的職位,他被告知,學(xué)會已經(jīng)無力給他答應(yīng)過的50英鎊年薪,只能用幾本《魚類史》來支付。 這篇材料你能聽出多少?點(diǎn)擊這里做聽寫,提高外語水平>>

      • 萬物簡史:PART II CH 4事物的測定(13)

        圖上幾乎沒有標(biāo)記,遠(yuǎn)離供給來源。但是,布格和孔達(dá)米納是堅忍不拔的人。他們不屈不撓,不怕風(fēng)吹日曬,堅持執(zhí)行任務(wù),度萬物過了漫長的九年半時間。在這個項目快要完成的時候,他們突然得到消息,說另一個法國考察隊在斯堪的納維亞半島北部進(jìn)行測量(面對自己的艱難困苦,從寸步難行的沼澤地,到危機(jī)四伏的浮冰),發(fā)現(xiàn)1度經(jīng)線在兩極附近果真要長,正如牛頓斷言的那樣。地球在赤道地區(qū)的測量結(jié)果,要比環(huán)繞兩極從上到下測量的結(jié)果厚出43公里。 這篇材料你能聽出多少?點(diǎn)擊這里做聽寫,提高外語水平>>

      • 萬物簡史:PART II CH 4事物的測定(10)

        發(fā)了爭議。   這意味著,地球不是滴溜滾圓的。根據(jù)牛頓的學(xué)說,地球自轉(zhuǎn)產(chǎn)生的離心力,造成兩極有點(diǎn)扁平,赤道有點(diǎn)鼓起。因此,這顆行星稍稍呈扁圓形。這意味著,1度經(jīng)線的長度,在意大利和蘇格蘭是不相等的。說得確切一點(diǎn),離兩極越遠(yuǎn),長度越短。這對那些認(rèn)為地球是個滴溜滾圓的球體,并以此來測量這顆行星的人來說不是個好消息。那些人就是大家。   在半個世紀(jì)的時間里,人們想要測算出地球的大小,大多使用很嚴(yán)格的測量方法。最先做這種嘗試的人當(dāng)中有一位英國數(shù)學(xué)家,名叫理查德?諾伍德。諾伍德在年輕時代曾帶著個按照哈雷的式樣制作的潛水鐘去過百慕大,想

      • 萬物簡史:PART II CH 4事物的測定(15)

        斯基林和梅森11年前已經(jīng)成為朋友,他們曾一塊兒承擔(dān)一個測量一起重大天文事件的項目:金星凌日現(xiàn)象。不知疲倦的埃德蒙?哈雷幾年前已經(jīng)建議,要是在地球上