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【正文】 search Gibling and Davies cite in their publications.Using funding from the Canadian government, Davies and Gibling reviewed 144 published reports describing river sediment preserved in the rock record, dating from the Cambrian to the Devonian, to build their case. They visited 34 spots themselves in North America and Europe. And they scrutinized experimental results.One laboratory finding that impressed Gibling was achieved at St. Anthony Falls Laboratory at the University of Minnesota. Working in a tank, researchers there described how vegetation—in this case alfalfa sprouts that were allowed to germinate on banks—transformed a channel that flowed between multiple sandbars into one that selforganized into a single thread channel.“The strength of the roots of alfalfa was enough to pletely change the whole pattern. That generated a meandering river with banks that migrate and are erosion resistant,” Gibling says.Dov Corenblit, an associate professor at the University of Paris who describes himself as a biogeomorphologist, says Davies and Gibling have delivered more than just insight into the history of rivers. They have expanded evidence that the biotic and abiotic features of this planet influence one another.Their findings “may be considered significant progress in the prehension of one of the most critical phases in the coupling between physical and biological processes on Earth,” Corenblit says.The Dalhousie University geologists aren’t done. They want to explore whether any of the periodic mass extinctions experienced on Earth might have affected the shapes of rivers as well. They are scouring the literature for changes preserved from the end of the Permian, when a lot of plant life was wiped out.“We’ll look to see if rivers reverted to the older form,” Davies says.13. 黑人女賣化妝品*篇幅兩段文章結(jié)構(gòu)黑人女性Madam . Walke開美容院幫助黑人女性通過化妝提高社會地位和工作機會 富婆賣化妝品給顧客的原因;她的營銷策略 富婆不僅培養(yǎng)顧客也培養(yǎng)她的員工,使得他們經(jīng)濟獨立;社會地位提高;賺足了錢去回報社會,黑人的社會地位就提高了。文章大意:P1 20世紀的時候出了美國第一位African American(非洲裔美國籍)的女百萬富翁叫Madam . Walke。她通過向黑人婦女賣化妝品等美妝品賺得了自己的財富。她專門賣給黑人婦女,因為她覺得這樣可以幫助他們更好的找到工作。這位富婆認為,黑人婦女應(yīng)該在著裝打扮上下下功夫,有助于得到更多的社會尊重,自信和經(jīng)濟獨立,甚至工作機會。她努力讓大家相信這一點:用了她的商品就能讓人覺得是自己是有頭有臉的上層人物。 也講到了這個人還雇傭黑人來店里工作(CULTIVATE(培養(yǎng),發(fā)展)黑人leader),最后說她賣產(chǎn)品給一位位高權(quán)重的人,是因為一般大眾會去模仿這些名人(有題目)。P2 第二段的首句很重要,講到她希望她的代理商(agent)不只是賣產(chǎn)品,而是賣style,富婆做生意的更根本愿望hope 和 belief是為了那些黑人女性的Status提高和economic power加強。Walke認為黑人女性造型好了,money和career都會有所好轉(zhuǎn)(這有題目,說Walke想咋幫她的客戶)。而且Walke不僅幫助她的顧客變美麗,還打造她的員工,提供很多training之累的。她的員工不僅僅賣東西,而且還傳授理念。讓顧客們意識到個人形象的重要性。Walke發(fā)展她的代理商(agents)建立在mission(傭金)的制度上。 在當時做Walke的代理商是使那些想independent女性的一個很好的機會。在員工們 financially獨立后,Walke還鼓勵她們?nèi)閙unity做charity。這樣黑人女性的社會地位就高了(有題目),因此她的公司不但有助于黑人女性在社會中的發(fā)展,還為整個社會做了善事。A successful woman in beauty(美容事業(yè)). Her business is to change the attitude of black women about themselves, to improve their career opportunity through being beautiful. Not only for customers, but also for her own staffs. She trains them to bee selfindependent. And also educate them to use their money for charities.問題:Q1. 題干貌似是 Walke wants to use its brand to …. (Walke想用它的品牌做什么)?A1 我選得是E 幫助他人獲得工作機會(具體選項怎么描述記不清了,反正是help others 開頭的…)提醒by kumo1: LZ不知道這題做沒做對,因為有個迷惑的選項感覺說的是幫助黑人女性把自己的appearance打扮成有status的人。(好像是這樣),但LZ覺得這選項不對,所以選得EA2 我好像最后選了一個跟造福社會有關(guān)的Q2. 問的是Walke鼓勵自己的agents做什么?/ most likely encourage her agents to do ?一個選項是:anonymously donate their mission to worthy charity.【提醒by kumo1覺得不太對…= =】一個選項是通過personal appearance to show a social statusQ3. 主旨選了說明Madame ’s business methods and goals.Q4. 問Walke希望other business owners干嘛? (重點注意)A1 我定位了一下,大概在第一段的最后一句話是說she cultivated the religious(宗教的)…and business owner, knowing...people(就是指她前面cultivated的這一潑人) to use her products, the others follow suit. 大概是這樣,全文就只有這個地方提到了business owner,只要理解了這句話就能做出這道題。 其它選項:C是提供一些改變style和appearance的護膚/發(fā)品(應(yīng)該不是這個) 其它選項:D是provide opportunity to help black women improve social and financial status A2我選了關(guān)注未被關(guān)注的市場【I】感覺這個應(yīng)該是Q5的答案???其它選項:招聘已經(jīng)financially independent的銷售員(應(yīng)該不是這個)Q5. 她是如何經(jīng)營公司的?幾個有印象的選項如下:大媽會建議別的創(chuàng)業(yè)者怎么做 應(yīng)該是看準被忽略的市場segment大媽最可能會讓自己的員工怎樣 通過化妝打扮表現(xiàn)自己的social statusQ6. 她的產(chǎn)品怎么樣賣還是什么……我選了多賣給business leader等成功人士,把自己的品牌和高端聯(lián)系在一起。14. 樹的年輪*文章結(jié)構(gòu)用年輪測樹的年齡在熱帶不適用,因為有的樹看不出來,所以某女提供了新的一種方法.文章大意P1. 樹的年輪不僅可以體現(xiàn)樹的年輪,還可以用來觀察氣候,能追溯1000年的變化情況,但是熱帶樹(tropical trees) 因為difference between wet and dry seasons is too subtle to make noticeable differences,所以不能用這個方法。然后有個方法是用測sediments里的carbon isotope(碳同位素),但是這個方法只能測最近100年的氣候變化,并且近日來發(fā)現(xiàn)其實tropical trees是有隱形的年輪的,所以還有缺點。P2. 一個女科學(xué)家的團隊發(fā)現(xiàn)了一種新的方法,可以通過XRAY檢測calcium level來觀察的(因為這種樹在不同季節(jié)鈣吸收量不同)這種方法一下午就可以搞定原先34個月的工作量,大大節(jié)省了時間,而且隔很遠就能測量。還說了一些優(yōu)點(這里有很多名詞,記不清了,不影響解題,只要知道哪些詞是舊方法哪些是新方法就好了)。P3. 但是文章又raise concern說也許這個方法不普適,因為可能其他tropical trees的calcium level變化不那么明顯。那么怎么證明這個新方法是不是useful呢?就需要從兩個角度來看。一:bla bla,二:bla bla(不記得有考點)。最后一句話說,女科學(xué)家表示會注意這些被質(zhì)疑的方面,回和某某合作來驗證有效性。近似原文:很相似,但不是完全的原文You can tell how old a tree is simply by counting its rings, which reflect the changing seasons. However, things are less straightforward when it es to tropical trees, since there are no summers and winters to mark the passage of time. Now scientists have worked out a simple way to tell the age of trees from the tropics, according to Nature.  Currently, factors such as the width of tree rings in temperate zones are used to provide a detailed record of climate conditions for the past 1 000 years or so. But only a few types of trees in the tropics have visible rings: the variances between wet and dry seasons are too slight to leave a distinguishable mark.  Until now, scientists have depended on measurements of oxygen and carbon isotopes to determine their age, but Pascale Poussart, a geochemist at Princeton University in New Jersey, and her colleagues, have shown that an apparently ring less Miliusa velutina tree(野獨活)from Thailand does have rings... they39。re just invisible.  Using Xray beams focused on wood samples, there searchers looked at calcium, a mineral that trees take up during their main growing season. They revealed annual peaks dating back to the re
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