2018/3/14 16:39:59來源:互聯網作者:上海新航道
摘要:2018年首場SAT考試已結束,今天,上海新航道SAT小編給大家回顧關于3月10日SAT考試閱讀內容詳情。閱讀部分難度相比2017年5月考試更簡單,各類文章的理解上沒有太大的障礙,但相對而言,由于邏輯和背景知識的影響,自然科學的兩篇文章難度稍高。題型方面,在新SAT考試進行到第三個年頭的時候,整體出題形式已經比較穩定,此次考試也沒有出現意料之外的新題型。
2018年首場SAT考試已結束,今天,上海新航道SAT小編給大家回顧關于3月10日SAT考試閱讀內容詳情。閱讀部分難度相比2017年5月考試更簡單,各類文章的理解上沒有太大的障礙,但相對而言,由于邏輯和背景知識的影響,自然科學的兩篇文章難度稍高。題型方面,在新SAT考試進行到第三個年頭的時候,整體出題形式已經比較穩定,此次考試也沒有出現意料之外的新題型。
第一篇
文章原文:
THIRTY-TWO HOURS AFTER Hattie and her mother and sisters creptthrough the Georgia woods to thetrain station, thirty-two hours on hard seatsin the commotion of the Negro car, Hattie wasstartled from a light sleep by thetrain conductor’s bellow, “Broad StreetStation,Philadelphia!” Hattie clambered from the train,her skirt still hemmed with Georgia mud, thedream of Philadelphia round as amarble in her mouth and the fear of it a needle in her chest.Hattie and Mama,Pearl and Marion climbed the steps from the train platform up into the mainhallof the station. It was dim despite the midday sun. The domed roof arched.Pigeons cooed inthe rafters. Hattie was only fourteen then, slim as a finger.She stood with her mother andsisters at the crowd’sedge, the four of them waiting for a break in the flow of people sothey toomight move toward the double doors at the far end of the station. Hattiestepped intothe multitude. Mama called, “Come back! You’ll be lost in all those people. You’ll belost!” Hattie looked back in panic; she thought her mother was rightbehind her. The crowd wastoo thick for her to turn back, and she was bornealong on the current of people. She gainedthe double doors and was pushed outonto a long sidewalk that ran the length of the station.
The main thoroughfare was congested with more people than Hattiehad ever seen in one place.The sun was high. Automobile exhaust hung in the airalongside the tar smell of asphaltsoftening in the heat and the sickening odorof garbage rotting. Wheels rumbled on the pavingstones, engines revved,paperboys called the headlines. Across the street a man in dirtyclothes stoodon the corner wailing a song, his hands at his sides, palms upturned.Hattieresisted the urge to cover her ears to block the rushing city sounds. Shesmelled the absenceof trees before she saw it. Things were bigger inPhiladelphia—that was true—and therewasmore of everything, too much of everything. But Hattie did not see apromised land in thistumult. It was, she thought, only Atlanta on a largerscale. She could manage it. But even asshe declared herself adequate to thecity, her knees knocked under her skirt and sweat rolleddown her back. Ahundred people had passed her in the few moments she’dbeen standing outside,but none of them were her mother and sisters. Hattie’s eyes hurt with the effort of scanningthe faces of the passersby.
A cart at the end of the sidewalk caught her eye. Hattie had neverseen a flower vendor’scart. A white man sat on a stool with hisshirtsleeves rolled and his hat tipped forwardagainst the sun. Hattie set hersatchel on the sidewalk and wiped her sweaty palms on herskirt. A Negro womanapproached the cart. She indicated a bunch of flowers. The white manstood—he did not hesitate, his body didn’t contortinto a posture of menace—and took theflowers from abucket. Before wrapping them in paper, he shook the water gently from thestems.The Negro woman handed him the money. Had their hands brushed?
As the woman with the flowers took her change and moved to put itin her purse, she upset threeof the flower arrangements. Vases and blossomstumbled from the cart and crashed on to thepavement. Hattie stiffened, waitingfor the inevitable explosion. She waited for the otherNegroes to step back andaway from the object of the violence that was surely coming. Shewaited for themoment in which she would have to shield her eyes from the woman andwhateverhorror would ensue. The vendor stooped to pick up the mess. The Negrowoman gestured
apologetically and reached into her purse again, presumably to payfor what she’d damaged. Ina couple of minutes it was allsettled, and the woman walked on down the street with her nosein the paper coneof flowers, as if nothing had happened.
Hattie looked more closely at the crowd on the sidewalk. TheNegroes did not step into thegutters to let the whites pass and they did notstare doggedly at their own feet. Four Negrogirls walked by, teenagers likeHattie, chatting to one another. Just girls in conversation,giggling and easy,the way only white girls walked and talked in the city streets ofGeorgia.Hattie leaned forward to watch them progress down the block. At last,her mother and sistersexited the station and came to stand next to her. “Mama,” Hattie said. “I’llnever go back.Never.”
文章概述:
作者Ayana Mathis,原文出自于The Twelve Tribes of Hattie. This passage is set in 1923。
主人公Hattie和母親及姐姐坐火車到達費城,第一次來到費城這座大城市,Hattie對種族和這座城市的看法有了改觀。
文中第一段重點描寫了Hattie和母親走散,獨自一人面對一個嶄新的大城市,描述了她內心的興奮和不安。
文中第二段寫到了Hattie在火車站外看到的費城的街道景象。她感到費城和亞特蘭大并沒有什么不同,只是大了一些。但是之后的事情,讓她對這座城市的印象發生改變。
第三段和第四段中,Hattie看到一個黑人婦女向一個白人花商買花,但是一不小心打碎了花瓶。Hattie本以為這名黑人婦女會受到責備,卷入到一場沖突之中。但是沒想到黑人婦女表現正常,該買花買花,冷靜地賠了錢。
最后一段中,Hattie看到街上的人們的舉動,發現黑人女孩們的交談行為和白人女孩并沒有什么不同,當她媽媽找到她后,她決心留在這座城市。
題目:
1、主旨題Which choicecan best summarize the passage?
2、目的題,考查文章第一段詞組“roundas a marble in her mouth”和”a needle in her chest”的效果和目的;
3、細節題,Hattie在車站和Mother及Sisters分開,對她造成了什么影響;
4、詞匯題,原文詞匯是gained,選項詞匯有reached, increased;
5、Hattie第一次來到費城,她對費城的生活的態度是什么樣的;
6、上一題詢證;
7、黑人婦女和白人花商之間的沖突在即,Hattie認為many black people對此會是什么反應;
8、上一題詢證;
9、目的題,文章最后一段話第一句Hattielooks more closely at the crowds on the street的作用;
10、文章最后一段,文章將費城街上的四個談笑的black girls和佐治亞街上的white girls做了怎樣的對比。
第二篇
雙篇第一篇文章原文:
It is true, then, that there was too muchfoundation for the representations of those satirists and dramatists who heldup the character of the English Nabob to the derision and hatred of a formergeneration. It is true that some disgraceful intrigues, some unjust and cruelwars, some instances of odious perfidy and avarice, stain the annals of ourEastern Empire. It is true that the duties of government and legislation werelong wholly neglected or carelessly performed. It is true that when theconquerors at length began to apply themselves in earnest to the discharge oftheir high functions, they committed the errors natural to rulers who were butimperfectly acquainted with the language and manners of their subjects. It istrue that some plans, which were dictated by the purest and most benevolentfeelings, have not been attended by the desired success. It is true that Indiasuffers to this day from a heavy burden of taxation and from a defective systemof law. It is true, I fear, that in those states which are connected with us bysubsidiary alliance, all the evils of oriental despotism have too frequentlyshown themselves in their most loathsome and destructive form.
[But nowadays its affairs are much improved, and still improving]
[7a] All this is true. Yet in the historyand in the present state of our Indian Empire I see ample reason for exultationand for a good hope.
[7b] I see that we have established orderwhere we found confusion. I see that the petty dynasties which were generatedby the corruption of the great Mahometan Empire, and which, a century ago, keptall India in constant agitation, have been quelled by one overwhelming power. Isee that the predatory tribes, which, in the middle of the last century, passedannually over the harvests of India with the destructive rapidity of ahurricane, have quailed before the valour of a braver and sterner race, havebeen vanquished, scattered, hunted to their strongholds, and either extirpatedby the English sword, or compelled to exchange the pursuits of rapine for thoseof industry.
[7c] I look back for many years; and I seescarcely a trace of the vices which blemished the splendid fame of the firstconquerors of Bengal. I see peace studiously preserved. I see faith inviolablymaintained towards feeble and dependent states. I see confidence graduallyinfused into the minds of suspicious neighbours. I see the horrors of warmitigated by the chivalrous and Christian spirit of Europe. I see examples ofmoderation and clemency, such as I should seek in vain in the annals of anyother victorious and dominant nation. I see captive tyrants, whose treacheryand cruelty might have excused a severe retribution, living in security,comfort, and dignity, under the protection of the government which theylaboured to destroy.
[7d] I see a large body of civil andmilitary functionaries resembling in nothing but capacity and valour thoseadventurers who, seventy years ago, came hither, laden with wealth and infamy,to parade before our fathers the plundered treasures of Bengal and Tanjore. Ireflect with pride that to the doubtful splendour which surrounds the memory ofHastings and of Clive, we can oppose the spotless glory of Elphinstone andMunro. I contemplate with reverence and delight the honourable poverty which isthe evidence of rectitude firmly maintained amidst strong temptations. Irejoice to see my countrymen, after ruling millions of subjects, aftercommanding victorious armies, after dictating terms of peace at the gates ofhostile capitals, after administering the revenues of great provinces, afterjudging the causes of wealthy Zemindars, after residing at the courts oftributary Kings, return to their native land with no more than a decentcompetence.
文章概述:
為歷史的雙篇文章。討論的是英國對于印度的統治,第一篇感情色彩偏正面,第二篇感情色彩負面。
第一篇文章,作者一開始談到政府統治中的一些缺陷和局限性,比如印度人民身上的稅收壓力,政府目標美好,但是很難實現等等。在最后兩段,作者的態度發生轉折,開始討論印度未來的希望,和政府工作中的積極影響和重要性。
第二篇文章,作者從頭到尾發起批判。認為英國的統治,表明上的聲明很美好,但其實不過是為了英國的一己私利,通過欺騙印度的人們,得到自己的好處。作者接著呼吁人民擺脫政府的統治,爭取自由。
本次歷史文章難度不大,只是第一篇文章的態度較難把握,閱讀基礎不足的學生容易讀錯作者的主旨和感情色彩。
題目:
1、問的是p1文章的main focus 是如何轉移的。需要通讀全文才能解題,但是題目難度不大:只要抓住段落大意和文章的邏輯詞,就能解題:文章先抑后揚,先說印度政治狀況混亂,后提到政府其實取得了較好成果;
2、問原文何處支撐了“British unified India” 難度不大,只要將四個選項帶入。就會發現原文有一句:(i see…dependent states);
3、詞匯題:attend 和哪個詞意思接近:frequented / maintain/replaced/accompanied;
4、詞匯題:charge 和哪個詞意思接近:care/invasion/accusation/expense/;
5、問第二篇的段落大意:文章主旨體現非常清晰鮮明:the British ruined our country;
6、問印度人民對英國統治最初的態度:原文第二篇第3-5句話直接提現:supried ,即一開始認為英國是for their good,為他們著想;
7、問英國是用何種方式來鞏固它們在印度的統治?答案在文章第二段:通過愚民手段:fooled ignorance,blindness;
8、詞匯題:business 和以下哪個詞意思接近:objectives/likehood/movement;
9、問p2作者會如何看待p1作者所說的英國幫助實現印度國內的穩定性:p2作者立場鮮明,反對p1作者,認為只有權利在本國人手中才能實現穩定;
10、問p2作者如何看p1作者所說的“some plan” 難度不大:作者立場很容易看出,reject 作者在第二段認為英國是利用華麗的外衣來實現一國私欲;
11、上題循證題。
第三篇
文章原文:
In the spring of 1879, Hermann Lau shot two white-winged choughs,Corcorax melanorhamphos, off their nest in Queensland, Australia. He watched asadditional choughs continued to attend the nest, proving that a cooperativegroup shared parental care ( 1). Since then, cooperatively breeding birds havehad a starring role in efforts to explain the evolution of complex animalsocieties. We now know that “helpersat-the-nest” who forgo reproduction areoften relatives of the breeding pair. Genetic payoff is, thus, one of severaladvantages that helpers can gain from their super? cially altruistic behavior (2). On page 1506 of this issue, Feeney et al. ( 3) show that collective defenseagainst brood parasites (see the ? gure) can enhance such bene? ts ofcooperation. Why do some bird species cooperate and others do not? Globalanalyses have shown that cooperative breeding (now known from 9% of species) isassociated with a slow pace of life (characterized by high survival rates andlow turnover of breeding territories) ( 4), monogamy (which facilitates kinselection within families) ( 5), and unpredictable environments (such as aridzones) that might favor cooperation as a bet-hedging strategy ( 6). But thesefactors often fail to predict the incidence of cooperation among relatedspecies or within geographical regions ( 7). Feeney et al.’s study is built onthe premise that brood parasitism—reproductive cheating by species such ascuckoos and cowbirds, which exploit other birds to raise their young—is asevere selection pressure on their hosts’ breeding strategies. Parasitizedparents typically not only lose their current offspring but also waste a wholebreeding season raising a demanding impostor. The best way to avoid parasitismis to repel adult parasites from the nest. Feeney et al. show that socialitycan be pivotal to this process. The authors begin by unfolding a new map. Usingdata compiled by BirdLife International, they show that the global distributionof cooperatively breeding birds overlaps strikingly with that of broodparasites. This overlap need not re? ect a causal relationship:
The same unpredictable environments thatfavor cooperation could also favor alternative breeding strategies such asparasitism. However, the authors go on to show that even within geographicalregions rich in both parasites and cooperators—Australia and southern Africa—cooperativebreeders are much more likely than noncooperative species to be targeted bybrood parasites. To determine the reasons for this correlation, Feeney et al.studied cooperative breeding in superb fairy-wrens (Malurus cyaneus) inAustralia. Horsfield’s bronze-cuckoos (Chalcites basalis) should bene? t fromtargeting larger groups of fairy-wrens because more helpers mean faster chickgrowth. Yet, data from a 6-year field study show that in practice, cuckoosrarely experience this advantage, because larger groups of fairywrens much moreeffectively detect and repel egg-laying intrusions by cuckoo females,mobilizing group defenses with a cuckoospeci? c alarm call. Thus, cooperationand parasitism could reciprocally in? uence one another: Cooperators might bemore attractive targets because they make better foster parents, but once
exploited by parasites, they are alsobetter able to ? ght back, helping cooperation to persist ( 8). Feeney et al. ?nd that superior anticuckoo defenses in larger groups account for 0.2 moreyoung ? edged per season on average than smaller groups—a substantial boostgiven the fairy-wrens’ low annual fecundity. These results show convincinglythat defense against brood parasites augments the bene? ts of helping, promotingthe persistence of cooperation. But as the authors note, they cannot revealwhat caused cooperation to evolve initially. Brood parasitism alone cannotresolve the question of why some birds breed cooperatively. For example,cooperative king? shers and bee-eaters are heavily parasitized in Africa butnot in Australasia, showing that other advantages of helping behavior are suf?cient for cooperation to persist. But we should take parasitism seriously as animportant force in a cooperative life. Indeed, it may provide a mechanismcontributing to the previously discovered global correlates of cooperation (4–6). Some insight into the likely order of evolution might come from furthercomparative predictions. For instance, if cooperation arose fi rst as a defenseagainst parasitism, cooperators may be most prevalent among hosts that relyheavily on repelling adult parasites, rather than on antiparasite strategies atlater reproductive stages, such as egg or chick discrimination ( 9). Incontrast, if parasites target existing cooperators because they providesuperior care, this should be especially true of parasites whose chicks havethe most pressing needs—for instance, those in parasitic families with largebody size relative to their hosts or those whose chicks do not kill host youngand therefore must share their foster parents’ care. Could there be a similarassociation between cooperation and parasitism among other highly socialanimals? Cooperation in mammals clearly persists irrespective of parasitism, giventhat there are no known brood-parasitic mammals (perhaps because it would bediffi cult for a mammal to insert live young into another’s care). Butrepelling parasitic egg-laying intrusions is crucial to many hosts of sociallyparasitic insects and has shaped sophisticated adaptations and counterdefensesfor and against brute force and secrecy ( 10). It will be fascinating toexplore how selection for antiparasitic defense has interacted with monogamyand defensible resources as forces favoring kin-selected cooperation ininvertebrates, touching on an active debate in evolutionary biology. Answers tosuch comparative questions will ultimately be limited by our knowledge ofnatural history. The work by Feeney et al. is testament to the evolutionaryinsights enabled by careful long-term fi eld studies, together with thecumulative legacy of those naturalists who made the unglamorous effort torecord and publish observations of real animals in real places.
文章概述:
為附帶表格的自然科學文章。本篇文章的主旨是紅嘴山鴉之間的合作對于它們遭到寄生蟲入侵的影響。文章中談到,紅嘴山鴉之間的合作和寄生蟲的入侵是相互作用的。合作容易讓它們變成寄生蟲的目標,與此同時,它們之間的合作也讓它們更容易對抗寄生蟲。
在文中,作者也闡明了群體大小對于感染寄生蟲幾率的影響。越小的群體,感染幾率越大,越大的群體,感染幾率越小。在文章的最后一段,作者表明研究的結果雖然能夠說明合作對于寄生物入侵的影響,但是暫時還不能揭開紅嘴山鴉最初是如何進化出合作的特性的。
題目:
1、主旨題,問作者這篇研究的目的是什么;
2、作者文章中收集的data有什么樣的作用?
3、詞匯題:reflect在文中的意思;
4、詞匯題:favor在文中的意思;
5、獨立取證題:問那句話是文中作者提到的,群體數量對寄生物影響的證據;
6、細節題:紅嘴山鴉在繁殖中的特點;
7、目的題:最后一段的作用;
8、圖表題,問從第一個圖表能得出什么關于群體大小和寄生的關系;
9、圖表題,問從圖表中能得出什么樣的比對信息;
10、圖表題,問從第二個圖表中能得出什么。
第四篇
文章原文:
IF YOU wantsomething done, the saying goes, give it to a busy person. It is an odd way toguarantee hitting deadlines. But a paper recentlypublished in the Journal of Consumer Research suggestsit may, in fact, be true—as long as the busy person conceptualises the deadlinein the right way.
Yanping Tu ofthe University of Chicago and Dilip Soman of the University of Toronto examinedhow individuals go about both thinking about and completing tasks. Previousstudies have shown that such activity progresses through four distinct phases:pre-decision, post-decision (but pre-action), action and review. It is thoughtthat what motivates the shift from the decision-making stages to thedoing-something stage is a change in mindset.
Human beings area deliberative sort, weighing the pros and cons of future actions and remainingopen to other ideas and influences. However, once a decision is taken, the mindbecomes more "implemental" and focuses on the task at hand. “Themindset towards ‘where can I get a sandwich’,” explains Ms Tu, “is moreimplemental than the mindset towards ‘should I get a sandwich or not?’"
Ms Tu and DrSoman advise in their paper that "the key step in getting things done isto get started." But what drives that? They believe the key that unlocksthe implemental mode lies in how people categorise time. They suggest thattasks are more likely to be viewed with an implemental mindset if an imposed deadlineis cognitively linked to "now"—a so-called like-the-presentscenario. That might be a future date within the same month or calendar year,or pegged to an event with a familiar spot in the mind's timeline (being givena task at Christmas, say, with a deadline of Easter). Conversely, they suggest,a deadline placed outside such mental constructs (being"unlike-the-present") exists merely as a circle on a calendar, and assuch is more likely to be considered deliberatively and then ignored until thelast minute.
To flesh outthis idea, the pair carried out five sets of tests, with volunteers rangingfrom farmers in India to undergraduate students in Toronto. In one test,the farmers were offered a financial incentive to open a bank account and makea deposit within six months. The researchers predicted those approached in Junewould consider a deadline before December 31st as like-the-present. Thoseapproached in July, by contrast, received a deadline into the next year, andwere expected to think of their deadline as unlike-the-present. The distinctionworked. Those with a deadline in the same year were nearly four times morelikely to open the account immediately as those for whom the deadline lay inthe following year. Arbitrary though calendars may be in dividing uptime's continuous flow, they influence the way humans think about time.
The effect canmanifest itself in even subtler ways. In another set of experiments,undergraduate students were given a calendar on a Wednesday and were asked tosuggest an appropriate day to carry out certain tasks before the followingSunday. The trick was that some were given a calendar with all of the weekdayscoloured purple, with weekends in beige (making a visual distinction between aWednesday and the following Sunday). Others were given a calendar in whichevery other week, Monday to Sunday, was a solid colour (meaning that aWednesday and the following Sunday were thus in the same week, and in the samecolour). Even this minor visual cue affected how like- or unlike-the-presentthe respondents tended to view task priorities.
These and otherbits of framing and trickery in the research support the same thesis: thatmaking people link a future event to today triggers an implemental response,regardless of how far in the future the deadline actually lies. If the journeyof 1,000 miles starts with a single step, the authors might suggest that youtake that step before this time next week.
文章概述:
為附帶表格的社會科學文章。本篇文章的主旨是人們對于截止日期的認知,會影響他們的行動力。作者將人們對于截止日期的理解分為兩類,一類是和當下相關的截止日期,一類是非當下類截止日期。作者通過實驗表明,當人們對截止日期的感覺是和當下相關時,更容易觸發他們的行動。本篇文章難度不大,表格也相對簡單。
題目:
1、文章主旨題;
2、信息題,問在開始工作前人們最關注concern什么;
3.循證題,對應前一題;
4、詞匯題,問drive的意思;
5、信息題,問任務也很有可能被和當下聯系起來即便在遙遠的將來;
6、循證題,對應前一題;
7、推斷題,作者提及日期的arbitrary是為了暗示什么;
8、目的題,最后一段的作用是什么;
9、圖表題,問哪一個值接近人們對于deadline的平均速率;
10、圖表題,問圖表與文章第一個存款實驗的區別。
第五篇
文章原文:
Ancient magma plumbing found buried below moon'slargest dark spot
By Eric Hand Oct. 1, 2014 ,1:00 PM
Scientists have found a nearly squarepeg underneath a round hole—on the moon. Several kilometers below OceanusProcellarum, the largest dark spot on the moon’s near side, scientists havediscovered a giant rectangle thought to be the remnants of a geologicalplumbing system that spilled lava across the moon about 3.5 billion years ago.The features are similar to rift valleys on Earth—regions where the crust iscooling, contracting, and ripping apart. Their existence shows that the moon,early in its history, experienced tectonic and volcanic activity normallyassociated with much bigger planets.
“We’re realizingthat the early moon was a much more dynamic place than we thought,” saysJeffrey Andrews-Hanna, a planetary scientist at the Colorado School of Mines inGolden and lead author of a new study of the Procellarum’s geology. Thediscovery also casts doubt on the decades-old theory that the circularProcellarum region is a basin, or giant crater, created when a large asteroidslammed into the moon. “We don’t expect a basin rim to have corners,”Andrews-Hanna says.
The work isbased on data gathered by GRAIL (Gravity Recovery and Interior Laboratory), apair of NASA spacecraft that orbited the moon in 2012. Sensitive to tinyvariations in the gravitational tug of the moon, GRAIL mapped densityvariations below the surface (because regions of higher density produceslightly higher gravitational forces). Below known impact basins, GRAIL foundthe expected ringlike patterns, but underneath the Procellarum region, themysterious rectangle emerged. “It was a striking pattern that demanded anexplanation,” Andrews-Hanna says.
Scientistsalready know that the Procellarum region is rich in radioactive elements thatbillions of years ago would have produced excess heat. The study team theorizesthat as this region cooled, the rock would have cracked in geometricalpatterns, like honeycomb patterns seen on Earth in basalt formations, but on amuch larger scale. In a study published today in Nature, the researcherspropose that these cracks eventually grew into rift valleys, wheremagma from the moon’s mantle welled up and pushed apart blocks of crust. Lava spilledout and paved over the Oceanus Procellarum, creating the dark spot that is seentoday. The extra weight of this dense material would have caused the wholeregion to sink slightly and form the topographic low that has made theProcellarum seem like a basin.
With thediscovery, the moon joins Earth, Mars, and Venus as solar system bodies withmapped examples of rifting. There are also similar features near the south poleof Enceladus, the moon of Saturn that is spewing water into space from cracksin an ice shell.
Andrews-Hannaand colleagues have made a good case, says Herbert Frey, a planetary scientistat NASA’s Goddard Space Flight Center in Greenbelt, Maryland, even though thenewly described features are surprising. The moon is not big enough to have thesame strong convective cooling process that Earth has in its interior, heexplains, and ordinarily convection is one of the main mechanisms thought tolead to large-scale rifting. So just what caused the rifting remains unclear.“It just means the moon continues to surprise us,” he says. Frey adds that aremaining mystery is why the rectangular features were found only beneathOceanus Procellarum. Even if the rifting is explained by the excess radioactiveelements, there is still no definitive explanation for why only the near sideof the moon ended up enriched.
The discoverycould also be a death knell for the impact theory for Oceanus Procellarum, anidea first put forth in the early 1970s. A basin there would have been thelargest on the moon—larger than the South Pole–Aitken Basin—and second in thesolar system only to the Borealis Basin on Mars, which covers the planet’sentire northern hemisphere.
RyosukeNakamura, a researcher at the National Institute of Advanced Industrial Scienceand Technology in Tsukuba, Japan, is still not convinced that an impact can beruled out. In 2012, he and his colleagues published a paper in NatureGeosciencethat found compositional evidence for an impactwithin Procellarum—a type of pyroxene mineral that is found in other, knownimpact basins such as South Pole–Aitken and is associated with the melting orexcavation of mantle rock from an asteroid impact.
In response tothe current study, Nakamura says that the features in the southwestern cornerof the Procellarum region look to be circular rather than rectangular, andstill consistent with an impact. But Frey, who has long been skeptical of theimpact theory, says that the features are as clear as day, and not what you’dexpect underneath a basin. “That looks like a rectangle to me.”
文章概述:
本篇為不帶表格的自然科學文章,文章內容相對抽象,難度比前兩篇科學文章大一些。文章中表明,月球最大的圓形暗點oceanus procellarum下面找到了長方形的地貌,科學家們開始分析其構成的原因。在下一段中,作者介紹了GRAIL對于地貌和密度的變化。作者之后分析,暗點的形成,和輻射有關。在最后一段中,也表達了一些保留的態度,說實際的原因還不得而知。
題目:
1、全文的主要目的是什么?選擇月球上新的發現質疑之前的假設理論;
2、為什么作者說發現新的長方形地貌的時候還要提及 geologic plumbing sysyem?是為了進一步說明該地域的地址形態;
3、Hannah是如何評價之前的隕石撞擊導致盆地理論的;
4、NASA飛船GRAIL給Hannah團隊提供了什么樣的幫助;
5、GRAIL提供的信息和什么有關;
6、Hannah對于信息后的分析如何評價;
7、尋證題;
8、結合以上內容,Dark Spot到底應該是如何形成的;
9、為什么一開始認定OP是隕石沖擊形成的;
10、尋證題;
11、作者為什么給出宇宙中一些其他天體的例子,比如土星的衛星。
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