2019年8月24日SAT真题回忆

2019年08月24日SAT真题回忆分享给大家,可供参考。

阅读

第一篇

文学:Dance of the happy shades选段

文章描述了关于钢琴课意义的一些描述。

这篇小说选段讲到了女性的爱和痛苦。特别是女主人喜欢的音乐会被她妈妈嫌弃。除此之外,小说里有提到女主人的音乐会质量是每况愈下,尤其是讲到“现在大家已经不喜欢音乐会,但女主角还沉浸在自己的音乐梦想中”,这构成了这段文本交织的几段冲突。

第二篇

历史双篇

P1: Oration on the Celebration of the Anniversary of Independence 

P2: Americans No. 1

两篇文章作者立场观点相反,P1讲法国是盟友,美国人要站在人道主义的角度帮助法国人;P2讲法国大革命期间,是否对法国施援,美国国内舆论不一致。

第三篇

社会科学:Getting out the vote

这篇文章的主题讲到人们选举投票意识的塑造,“大家有意识去选举才会去选举”,另外,如果社会大环境都在鼓励投票,那么人们自然就会去投票了。

第四篇

自然科学: Human activities boasts brain size in animals

文章论述顺序如下:

1. 科学家对于脑部生长和环境间关系的新发现,否了个假设,肯定了个新说法

2. 接下来描述了 过去 对于此现象的相关研究 

这篇文章讲到和人类共居的动物大脑在变大的两种可能性,一种可能性是营养变好,二是动物在同人类的互动博弈中大脑变大了。文中提到了用实验证实第二个观点,并且这样的观点似乎也于史有证。当然,按照自然科学类文章中很熟悉的“谨慎”态度,文章最后作者也不会忘了说,确认自己的观点还需要做更多的实验。

第五篇

Ancient Volcanic eruptions shed light on Mercury’s Origins

这篇文章讲到了通过水星上火山爆发的遗迹可以推断出水星在形成不久之后的状况。有证据表明通过对水星上的crater测年就可以知道水星的火山爆发大体年份,由此得出结论是“水星上的火山爆发并非在水星刚一开始出现就有了,而且这样的喷发持续了很长时间。”

文法

第一篇

Science Says “让科学来说话”

一篇规整的说明文,介绍了科学家除了学术能力之外的一项重要能力:交流能力。一方面交流能力能够很好帮助科学家进行科普,建立科学和大众之间的桥梁;另一方面科学家的交流能力可以为科学家们换来真金白银的科研资金。

第二篇

Rock and Roll en Español “用西班牙语唱摇滚”

讲述了西班牙语世界的摇滚乐的发展。有一个叫做Los Lobos的乐队,这个乐队得了好多次格莱美奖,甚至进入了摇滚乐名人堂;摇滚乐今天仍然在西班牙语世界很火,而且有了自己的风格。

第三篇

Gwen Ifill’s Legacy“Gwen Ifill的遗产”

黑人女记者见证了黑人在政坛一路上升的过程。首先是1980年代,然后是21世纪,从地方行政长官一路到成为总统,黑人在国内政治的道路上高歌猛进。同时,Ifill自己也在成为国家级记者的道路上一路成功。最终,Ifill自己为新一代的记者树立了榜样,被人视为灯塔。

第四篇

A Plant’s Response to Temperature“植物对于温度的反应”

自然科学类的说明文。内有图表题,非常常规的考点。文章详细解释了为什么温度会影响指物开花的时间。

数学

整体难度

本次考试数学部分难度适中,考点与之前几次考试高度重合。

Section 3 涉及到的知识点:

1. 解一元一次函数和二元一次函数依然是考试的重点,以解方程和带图像的选择题居多。

2. 一次函数中斜率知识点的考察依旧是重点。通过给出的文字问题写方程,或者根据方程,理解方程中的数字信息。

3. 指数增长问题有两道。其中一题是类似化学中常见的Half-life,只需要注意指数代表的含义。

4. 三角出了两道题,一道题偏图像几何。另一道偏三角函数:三角形ABC和DEF相似,已知三角形ABC所有边长,求Cos D的值。

5. 圆出了一道题,根据已知圆公式 x2+y2=16,求两倍半径,圆心在原点的圆的公式。

Section 4 大部分是带图的选择题,考察学生的图表分析能力。

重点关注

1. 简答部分两道box plot题比较意外,因为一般这类题型会出现在选择题。如果看不懂box plot就很吃亏,因为难度很小。一道问中位数,另一道问范围。

2. 三次函数选择题没有出现,只有看一次函数图像选择函数表达式。

3. 散点图考察lines of best fit 依旧是老考点,好在这次非常简单,出了一个选择题,有几个数据点是低于lines of best fit的。

4. 立体几何考了一个问题,难度比其他大。一个6面体,容量为6000立方厘米,四个侧面各是300平方厘米,求地面积。答案应该是400平方厘米。

5. 三角形考了一个全等问题,需要考生的空间想象能力。读题时一定要看准那条边和那条边全等,不要搞错顺序。

6. 指数问题出现在了简答题里比较意外,但不是很难。需要懂得把x的几次根转化成x的几分之一次方。

7.指数增长题不是很难,带入题里的信息就没有什么大问题。

8. 统计类型的题对于统计学的基本知识要求较高,重点考察平均数,中位数,和标准差(mean,median,standard deviation)。

9. 可能性只考了一道图像题。一片区域被分成ABC三个部分,如果随机选择一点,并且这一点不在A区域,那么这个点出现在C区域的几率是多少。答案应该是c/(b+c)

10. 一道文字与图像题,比较基础。是走路上学忘带书本回家再跑回学校的类型。

11. 一道题考查加速度,时间,与速度之间的关系,对没学过物理的考生也很友好。

写作

How to save both elephants and the iory trade

整体难度

这次写作的文章节选自洛杉矶时报,题目是关于象牙交易的话题,这类文章比较贴近考生日常学习,写起来相对容易。

文章还原

How to Save both Elephants and the Ivory Trade

BY GODFREY HARRIS (Los Angeles Times / JULY 21, 2014)

Because of British currency restrictions enacted just before World War II, my father had to come up with an innovative way of getting his cash out of England when, fearing a German invasion, we immigrated to the United States. He settled on silver. Before leaving, he purchased all the Georgian silver objects he could find, with the idea of selling them once the family reached America.

A few months after we arrived, he opened the Harris English Silver Co. in Manhattan. While wartime rationing made many everyday items difficult to obtain, the demands of holidays, birthdays and anniversaries still required special gifts. Antique silver answered that need for many New Yorkers.

By 1944 my father had made more than enough to move the family to California, where he sold most of the remainder of his original inventory. Things were going so well that he decided to take a buying trip to England in 1948, and he took me along as his 11-year-old assistant. At each antique shop we visited, he would slowly survey the goods on display, identify the pieces of particular interest, and then have all the items brought together in one spot where he could inspect them. I was told to pick out anything that caught my eye and bring those pieces, too, to the central collection point.

I soon found that the pieces I gravitated to — boxes, doll house furnishings, knife rests, small carvings, writing implements, hand tools and the like — tended to have one thing in common: They were nearly all made of ivory.

When the shipment from that buying trip reached Los Angeles, my father gave me most of the items I had selected, and that was the start of my ivory collection. After becoming a U.S. diplomat, I added to these original items during trips abroad. And I soon became fascinated by the different uses to which ivory has been put — some practical, because of the material’s special properties, and some decorative, because of its unusual beauty.

Ivory pieces, like other artistic expressions, reflect the time and cultures that produced them. That’s one of the main reasons people collect artifacts of any sort: to preserve the best examples of cultural expression.

Today, however, ivory collections like mine — and ivory collectors themselves — are being vilified. The current debate in Washington over ivory policy has far less to do with protecting elephants than it does with satisfying the assumptions of animal rights groups, making things simple for government officials and accommodating the special wants of hunters and the special needs of musicians and museum curators. Collectors have little voice in the debate, and their collections have been likened to blood diamonds or denigrated as vanity indulgences. Any harm that American collectors suffer from the new regulations has been dismissed by Dan Ashe, director of the U.S. Fish and Wildlife Service, as collateral damage for the greater good of saving elephants.

Ashe has issued an order that virtually eliminates all trade and movement in the United States of objects made from or with ivory — no matter their origin, age or provenance — by requiring unimpeachable, detailed documentation on the ivory contained in a piece. To buy, trade or sell such pieces, collectors must have original bills of sale or repair invoices or proof of the year of importation into the United States. No collector and very few antique dealers can produce that kind of documentation, especially since none of it was required at the time most of the pieces were imported or purchased. How many treasures inherited from a relative or given as gifts come with written proof of where they came from or how they got here?

These draconian new rules have not been promulgated casually. Ashe believes that virtually ending all trade in African ivory in the United States — thus sending a message that ivory is valueless — is the best way to protect African elephants from the ravishes of poachers.

But that’s unrealistic and unproven. Today’s poaching problem has its roots in East Asia, where there is still a strong demand for and an active trade in new ivory objects. Demonizing older ivory objects to discourage possession of newer versions of similar items will not bring back the mammoths or save modern elephants from the economic forces that drive poachers.

Indeed, the International Ivory Society, on whose advisory board I sit, believes that taking valuable ivory objects out of circulation will only increase the market price for raw ivory abroad and put elephants in even more danger than at the present.

Everyone is rightly concerned with the plight of African elephants and the horrors that poachers are inflicting on herds across the continent. All of us want to find the right solution to stabilize elephant populations in Africa through sound economic and conservation policies. But the answer must not come at the expense of collectors who play such an important role in preserving important, interesting and revelatory objects in our cultural history.

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