最新10月SAT考情分析貼重磅來襲

今天Special A 的學生抵達考場并且順利完成了考試。

經(jīng)過Special A的學員回憶這次考試表示： 閱讀整體難度不高， 語法難度也一般， 數(shù)學有些同學反應不算簡單。 總得來說，這是一次中規(guī)中矩的考試，其難度符合我們在考試之前幾個月所作出的預判。

下面就讓我們來看看考情分析吧~

閱讀部分

本次新SAT亞洲卷閱讀部分整體難度中等偏低，與2017年5月亞洲卷，2017年1月及2016年10月北美卷相比較而言，無論歷史還是科學類的文章，話題都較好理解，觀點也比較清晰，閱讀部分不會造成太大障礙，題型總體正常，均在College Board官方公布的出題范圍內(nèi)，沒有超綱題型或異常難題。

【小說】 小說摘自于Barbara的Flight Behaviors。 媽媽帶著兒子一起去森林看蝴蝶，讓孩子去探索自然，其中也談到了關于母子之前關系的話題，總體上比較簡單。

【社會科學】 這次是經(jīng)濟方面的文章，凱恩斯經(jīng)濟學和布雷頓森林體系(Bretton Woods system)。講了創(chuàng)始人提出理論的目的，功能，缺陷（在通貨膨脹的時候就出現(xiàn)了問題）。

【科學】 一篇是關于植物通過根吸收金子，通過脈絡輸送到植物的莖和葉子上；人們根據(jù)植物中金子含量多少，就可以去附近尋找金子。

【歷史雙篇】 對林肯的歷史功績做評價。第一篇是道格拉斯批評林肯，認為他政治生涯的早期比較偏心，偏袒了白人（解放黑奴也還是為了白人好）；第二篇是完全贊美林肯的，認為林肯對黑人特別好，是救世主。雙篇關系相反。

【科學】 第二篇冰川對地球的影響，冰川時期，海水會變少，這樣海水海床的壓力會變小，導致巖漿會出來，使得地殼變厚，產(chǎn)生一些地貌。

語法部

本次語法部分的考試難度屬于正常水平，依然考到了大家非常熟悉的標點題，主謂一致題，時態(tài)題，句子刪減題，文章排序題，圖表題等。相信在過去的一段備考時間中付出辛苦努力的同學們一定可以在這場考試中發(fā)揮地游刃有余。

【The Net Effect of Online Journalism】 在當代社會，因為時代的進步，媒體人需要進行多方面的發(fā)展，需要掌握多種技能(multiskilled)。不僅僅要會寫文章，還要有編輯，整理素材，以及對于讀者的feedback提供回復的能力。在工作中，還需要親自出去采訪，以豐富自己的文章以及閱歷。為了適應社會快速發(fā)展的年代和互聯(lián)網(wǎng)如此普及的年代，媒體人需要提高自己的各種能力。

【W(wǎng)orking Hard Notto Play TooHard】 有一種哺乳動物canids性格兇猛，但在幼時需要參加社交活動。為了區(qū)別社交需求和有攻擊性的行為，canids會發(fā)出特定的gesture和signal。在和比他們?nèi)跣〉膭游镞M行社交時，為了保護弱小動物，canids會進行以下的行為:rolereversive和self-handicapping。當youngcanids尋找社交時，他們會做出特殊的動作“bow”。這些都是canids為了正常社交生活所做出的行為，這是他們成長中必備的。

【The Powerlessness of Persuasion】 在美國總統(tǒng)選舉期間，民主黨和共和黨會有多場debate(辯論)。但是根據(jù)調(diào)查結果表明，大多數(shù)選民都不根據(jù)debate來投票了。主要原因為兩點，第一是debate的時間在大選的后半程，多數(shù)選民已經(jīng)有了自己的選擇，這個時候再看debate的作用不大。第二是因為看debate的群眾是對政治非常感興趣的，因此會有自己所支持的黨派。但是，研究表明，debate還是對美國人民在選舉期間有著informative的意義，是大選中必不可少的一部分。

【Ruede Fleuvus】 GertrudeStein購買了兩幅畫，與當時流行的realism風格畫作完全不同，引起大家熱議，同時也開始了modernart時代，推動了當時的藝術發(fā)展。之后他在家里開了一個gallery，讓大家普遍熟知了這種風格，但是也有一些人不懂這種風格，需要解釋風格的藝術價值。

數(shù)學部分

【代數(shù)/函數(shù)】

與以往一樣，一元二次方程，二元一次方程組的求解依舊占據(jù)了運算部分的較大比例，倍數(shù)和比例(Multiplesandproportion)的知識點在section4部分壓軸出現(xiàn)。本次考試未涉及因數(shù)定理(TheFactorTheorem)，余數(shù)定理(TheRemainderTheory)。

5月考試沒有涉及的復數(shù)(complexnumber)概念在本次考試中出現(xiàn)，學生只需掌握復數(shù)i累乘的規(guī)律即可作答。

【幾何】

在坐標幾何/解析幾何方面，有一題考察圓弧長;關于直線方程的考察則較簡單，只需掌握基本的斜率概念和計算方法即可。

平面和立體幾何方面，本次考試考察了(銳角為30和60度的)直角三角形的邊長計算以及相似三角形的邊長計算，尤其是相似三角形一題，掌握congruent一詞的含義是關鍵。

本次考試依舊沒有考查三角函數(shù)(trigonometricfunction)，也未涉及立體幾何(solidgeometry)部分。

【概率與統(tǒng)計】

本次概率問題依舊考察了一題，關于列聯(lián)表(frequencychart)中的條件概率，看清抽取的范圍即可。

統(tǒng)計學方面的題目比例本次考試有所增加(6題左右)，涉及基本統(tǒng)計量(mean平均數(shù)，median中位數(shù)，range極差)的計算，同時考察科學抽樣(sampling)的問題，需要考生對抽樣的概念有所理解。

本次考試依舊沒有考察方差(variance)和標準差(standarddeviation)。

寫作部

下面我們?yōu)榇蠹規(guī)韺懽鞑糠值哪繕碎喿x文章原文：

Lighten up, Sir David. Our wildlife is safe

By Matt Ridley Sep. 12, 2013, The Times

1. Publicising his imminent new series about the evolution of animals, Sir David Attenborough said in an interview this week that he thought a reduction in human population during this century is impossible and “we’re lucky to be living when we are, because things are going to get worse”. People will look back in another 100 years “at a world that was less crowded, full of natural wonders, and healthier”. His is a common view and one I used to share. He longs for people to enjoy the open spaces and abundant herds of game that he has been fortunate enough to see. To that end he thinks it vital that there should be fewer of us.

2. Ever so politely, I would now passionately disagree with the two premises of his argument. It’s actually quite likely, rather than impossible, that population will be falling by the end of this century and it is also quite likely that the people alive then will have lots more wilderness to explore and wildlife to admire than today.

3. The rate at which world population grows has roughly halved from more than 2 per cent a year in the 1960s to roughly 1 per cent a year now. Even the total number of people added to the annual population has been dropping for nearly 30 years. If those declines continue, they will hit zero in about 2070 — not much more than 50 years from now. In recent decades the birth rate has fallen in every part of the world. Fertility in Bangladesh has fallen from nearly 7 children per woman in the 1960s to just over 2 today; Kenya from 8 to 4.5; Brazil 5.7 to 1.8; Iran 6.8 to 1.9; Ireland 3.9 to 2…

4. Europe, Asia and Latin America have already gone through this transition and most countries are producing babies at or below replacement rate of 2.2 per woman, at which population stabilises (without immigration). Africa, for so long written off as a special (basket) case, is following suit almost exactly. For this reason alone, I suspect the world population will stop growing and begin to shrink even earlier than 2070 and almost certainly within this century. But even if it does not, there is good reason to reassure Sir David that our great grandchildren will have more wildlife to look at than he has had.

5. An ingenious study by scientists at Rockefeller University in New York has recently calculated that even with population continuing to grow, and even with people eating more food and especially more meat, we have almost certainly already passed “peak farmland”, because of the rate at which fertilisers are improving yields. (Or we would have done if not for biofuels projects.) We will feed nine or ten billion people in 2070 from a considerably smaller acreage than we need to feed seven billion today.

6. Land sparing is already occurring on a grand scale. Forest cover is increasing in many parts of the world, from Scotland to Bangladesh. Wildlife populations are booming in Europe (deer, bears, boar, otters), in the polar regions (walrus, seals, penguins, whales) and North America (turkeys, coyotes, bison, geese) and this is happening fastest in the richest countries. According to one recent report, animal populations grew by 6 per cent in Europe, North America and Northern Asia between 1970 and 2012, while shrinking in tropical regions. There is almost a perfect correlation between the severity of conservation problems and poverty, because the richer people get, the less they try to live off the land and compete with nature — the less they seek bushmeat and charcoal from the forest.

7. Once again, Africa may spring a pleasant surprise. Over the past four decades agricultural yields in Africa hardly budged while they doubled or quadrupled in most of Asia. That is almost entirely down to a dearth of fertiliser and it is beginning to change. If African yields were to rise, the acreage devoted to farmland globally would start to fall even faster, releasing more and more land for “re-wilding”. The great herds and flocks that so delight Sir David would reassemble in more and more places. The happy conclusion is that making people better off and making nature better off are not in opposition; they go hand in hand.