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焦点教育出品—SAT考试总结及例题解析这里为大家讲解了SAT试题的组成部分(数学，阅读作文)。
在每一部分作者首先介绍考试的这一组成部分究竟测试考生的何种能力，通过介绍使得读者对该部分有一个准确的定位，作者认为这一点是非常重要的。
其次介绍各组成部分的考核内容和出题方式，使读者在范围上了解它，在样子上熟悉它。
最后将给出各部分考试的真题例子，使读者亲自尝试一下在这章中所学到的知识和技巧，并真正体验一下SAT考试的风格和难度。
SAT数学部分SAT数学是SAT的一个组成部分，分数占总分的1/3。
对中国学生来说这一部分是最容易拿分的，也是最有可能得满分的。
可以说，数学试题是最好对付的，因为得个不错的分数不难;也可以说，数学试题是最不好对付的，因为许多学生想得满分。
SAT数学考试共有3个试卷，合计54道试题。
下表是数学试题的得分表，左面的一列是考生所得的原始分数(R=C-W)，右面的一列是考生数学部分的最终得分。
这里，C是英文Correct的缩写，它代表答对的题目数;W是英文Wrong的缩写，它代表答错的多项选择题数乘以1/4后再把结果四舍五入后得到的值。
如果某个考生答对了51道题，答错了2道多项选择题和1道非多项选择题，那么该考生的C=51，W=1(2*1/4=0.5, 四舍五入)，所以R=C-W=51-1=50;由下表得知该考生的SAT数学得分是710。
表5-1-1 原始分数和最终分数的一个换算表原始分数和最终分数的一个换算表本章将通过如下四节内容使读者对SAT数学有一个清晰的认识和基本的了解：SAT数学考核什么能力;SAT数学的内容;SAT数学的特点;SAT数学的典型试题。
一、SAT数学考核何种能力SAT数学考核的内容不是数学本身。
尽管考的是数学题目，但实质上测的是能力和素质，可谓醉翁之意不在酒。
更为具体地说，SAT数学不是测试考生掌握了多少数学知识，而是通过数学这个媒介测试考生的综合能力，或者直接地说它是在考核考生的智商。
USACO 题解Chapter1Section 1.1Your Ride Is Here (ride)这大概是一个容易的问题，一个“ad hoc”问题，不需要特殊的算法和技巧。
Greedy Gift Givers (gift1)这道题的难度相当于联赛第一题。
用数组incom、outcom记录每个人的收入和支出，记录每个人的名字，对于送礼人i，找到他要送给的人j，inc(incom[j],outcom[i] div n)，其中n 是要送的人数，最后inc(incom[i],outcom[i] mod n)，最后输出incom[i]-outcom[i]即可。
（复杂度O(n^3)）。
用Hash表可以进行优化，降复杂度为O(n^2)。
Friday the Thirteenth (friday)按月为单位计算，模拟运算，1900年1月13日是星期六（代号1），下个月的13日就是代号(1+31-1) mod 7+1的星期。
因为数据小，所以不会超时。
当数据比较大时，可以以年为单位计算，每年为365天，mod 7的余数是1，就是说每过一年所有的日和星期错一天，闰年第1、2月错1天，3月以后错2天。
这样，只要先求出第一年的解，错位添加到以后的年即可。
详细分析：因为1900.1.1是星期一，所以1900.1.13就等于(13-1) mod7+1=星期六。
这样讲可能不太清楚。
那么，我来解释一下：每过7天是一个星期。
n天后是星期几怎么算呢？现在假设n是7的倍数，如果n为14，那么刚好就过了两个星期，所以14天后仍然是星期一。
但如果是过了15天，那么推算就得到是星期二。
这样，我们就可以推导出一个公式来计算。
(n天mod 7（一个星期的天数）+ 现在日期的代号) mod 7 就等于现在日期的代号。
当括号内的值为7的倍数时，其代号就为0，那么，此时就应该是星期日这样，我们可以得出题目的算法：int a[13]={0，31，28，31，30，31，30，31，31，30，31，30，31}int b[8]={0}a数组保存一年12个月的天数（因为C语言中数组起始下标为0，所以这里定义为13）。
新SAT数学OG题目解读注重考察解决实际问题的能力
新SAT数学考试的内容会涉及四个方面，主要是前三部分，第一部分是代数核心，第二个是实际生活中的问题解决以及统计问题，这个部分因为会涉及到实际生活中比较复杂的代数运算，所以不会让大家在非计算器使用部分去作答，而都会出现在第四个section部分。
然后第三部分是高级数学入门，第四部分是一些数学的额外话题。
小编今天为大家讲解的是下面这道新SATOG数学题目：
材料：The Official SAT Study Guide
试卷：4
页数：717
题号：14
答案: C
答案解析：这道题问的是additional money 5%比3%多的，compound monthly，第二个月的principal要加上第一个月的interest，每个月都累加算，一年一共12 months, 一个月的interest rate 就是annual interest rate/ 12，一共算12months的。
代入5%，3%，算difference.
新SATOG上的题目希望考生们能够认真对待，考试指南上的资料是非常有参考价值的内容。
新SAT数学考试题目的长度变长以及考察更多的是解决日常生活中实际问题的数学题。
所以，在考试备考中一方面应该增加数学词汇量，另一方面提升数学解决实际问题的能力，能将实际问题转换成数学公式等解决问题。
新SAT数学OG题目解读注重考察解决实际问题的能力
/forum.php?mod=viewthread&tid=373&fromuid=1
(出处: 明志论坛)。
完形填空专练一My name is Bill. I’m an English boy. I’m a student 1 a high school. I’m in Class4, Grade 8. Li Lei is my friend. We are in 2 class. He is thirteen. Here is a photo of 3 family. It is new. Please4 it. His dad is5 English teacher. The one6 is his mom. She is a doctor (医生). He has7 sisters. Their names8 Fangfang and Lingling. They look the same. They are junior high school students,9 . They 10 a nice cat. They like it very much.1.A. in B. to C. and D./【答案】C【解析】in a high school 在一所中学。
2. A. the same B. Different C. same D. the different【答案】A【解析】in the same class 在同一所班级；different后加名词复数。
3. A. he B. him C. her D. his【答案】D【解析】family n.家庭，家人；名词之前要用形容词性物主代词，故用his.4. A. look at B. look C. give D. see【答案】A【解析】look at sth 看......。
5. A. the B. an C. / D. a【答案】B【解析】an English teacher 一位英语老师；English元音音素开头，故用an.6. A. a red B. in red C. red D. in a red【答案】B【解析】in+颜色，穿......颜色的衣服，可放在名词之后，做后置定语。
sat试题及答案解析SAT试题及答案解析1. 阅读下列句子，选择最恰当的词汇填入空白处。
句子：The artist's new painting was a _______ of colors that left the audience in awe.选项：A. explosionB. collectionC. mixtureD. gathering答案：A解析：在这个句子中，"explosion"（爆炸）一词用来形容色彩的强烈和丰富，给人以强烈的视觉冲击，因此是最合适的词汇。
2. 阅读以下段落，回答以下问题。
段落：In the early morning, the sun rose slowly over the horizon, casting a golden glow on the sleepy town. The streets were still quiet, with only a few people walking by.问题：What time of day is described in the passage?答案：Early morning解析：文中提到“the sun rose slowly over the horizon”和“streets were still quiet”，这些描述都暗示了时间是清晨。
3. 完成以下数学题。
题目：If a car travels 120 miles in 3 hours, what is its speed in miles per hour?答案：40 mph解析：速度的计算公式是距离除以时间。
因此，120英里除以3小时等于40英里每小时。
4. 阅读下列句子，判断下列陈述是否正确。
句子：The scientist's hypothesis was proven incorrectafter the experiment.陈述：The experiment confirmed the scientist's hypothesis.答案：错误解析：句子中提到“hypothesis was proven incorrect”，意味着实验结果与科学家的假设相反，因此陈述是错误的。
SAT考试数学历年真题全解2024年版在备考SAT考试过程中，熟悉并掌握历年真题是一项重要的任务。
通过解析历年真题，考生可以了解考试的出题风格、难度以及考察的知识点，有助于提高备考效果。
本文将为您提供2024年版本的SAT考试数学部分历年真题全解，帮助您更好地备考。
下面将根据考试的各个部分，逐一解析2024年版SAT数学部分的历年真题。
第一部分：选择题解析选择题是SAT数学部分最主要的题型，考生需要在给定的选项中选择正确答案。
以下是2024年版SAT数学选择题的解析：1. 题目描述2. 解析3. 答案解释4. 解题思路通过对每个选择题的详细解析，考生可以了解题目的解题思路、关键步骤以及答案的解释。
在解析选择题过程中，本文将注重解题思路的讲解，帮助考生更好地理解解题的方法和技巧。
第二部分：填空题解析填空题是SAT数学部分的另一种题型，与选择题不同的是，填空题要求考生填写一个具体的数值或表达式。
以下是2024年版SAT数学填空题的解析：1. 题目描述2. 解析3. 答案解释4. 解题思路通过对每个填空题的详细解析，考生可以了解填空题的解题方法和技巧。
在解析填空题过程中，本文将注重解题思路的讲解，帮助考生更好地理解解题的方法和技巧。
第三部分：解答题解析解答题是SAT数学部分的较难题型，要求考生根据题目给出的条件和要求，用数学方法进行解答。
以下是2024年版SAT数学解答题的解析：1. 题目描述2. 解答步骤3. 解答思路4. 结论通过对每个解答题的分步解析，考生可以了解解答题的解题方法和技巧。
在解析解答题过程中，本文将注重解答步骤和思路的讲解，帮助考生更好地理解解题的方法和技巧。
结语通过对2024年版SAT数学部分历年真题的全面解析，考生可以更加深入地了解考试的出题方式和要求，提高备考效果。
同时，解析中的解题思路和技巧也可以帮助考生更好地掌握数学知识和解题方法。
在备考过程中，考生可以结合解析内容进行针对性的练习和复习，提高数学部分的得分。
Book Test #5:Section 1Sample Essay - Score of 6Most parents and teachers tell students the extremely tired cliché of the consequences of following the crowd. It is said that, in order to be a competely individual thinker, one must ignore what others say. Such advice is certainly true to some extent; unreasonable malice must be forgotten in order to keep some level ofself-esteem. However, as with most ideas, this one can not be taken in absolute form. In at least some respects, we need other people in order to understand ourselves.An excellent example of a literary character who could have psychologically benefitted from social interaction is J. Alfred Prufrock from T.S. Eliot’s poem “The Love Song of J. Alfred Prufrock.” In the poem, Prufrck desires a relationship with a woman very much, but he refrains from initiating conversation because he fears that he could not hold the interest of a sophisticated lady. Should Prufrock have taken the step to accept other people into his life, he most likely would have discovered, as the reader of the poem certainly did, that he is most articulate. Others would have impressed upon him the beauty of his words and his talent for prose. If Prufrock would have spoken his song a loud, the ladies surely would have shown him what he himself did not understand. Since the ladies would reveal Prufrock’s talents to him, it is true that we need others in order to understand ourselves.The lesson of learning from other’s opinions of yourself extends much farther than the song of a fictional character. Two days ago, in an art class, my group of students had assigned self portraits due. Most of us brought in photographs of ourselves. Nevertheless, one boy brought nothing and handed us all slips of paper. He told us to write a word to describe him, and when we had done so, he pasted the words on a poster. This must have been a revealing exercise for him because, upon the sight of such descriptions as “bitter” and “sarcastic”, he was shocked. In the case of this boy, he had not realized how his personality appeared to others. Though he might not have thought himself “bitter”, his friend’s comments certainly made him seem that way. The fact that we need others in order to understand ourselves is clearly shown by this boy’s revelation.Section 21ANSWERS AND EXPLANATIONSExplanation for Correct Answer A :Choice (A) is correct. "Guarantee" in this context means to provide strong assurances that something will be the case, and "lobby for" means to influence legislators to support certain measures. If one were to insert these terms into the text, the sentence would read "Like many other groups of people in the United States who have needed laws to guarantee equal rights, Americans with disabilities have had to lobby for legislation addressing their concerns." Laws that guarantee equal rights for particular groups of people are usually passed after individuals from those groups have presented their cases to governmental officials who have the power to pass laws.Explanation for Incorrect Answer B :Choice (B) is incorrect. "Preclude" means to prevent something or make it impossible, and "enact" means to pass a law. If one were to insert these terms into the text, the sentence would read "Like many other groups of people in the United States who have needed laws to preclude equal rights, Americans with disabilities have had to enact legislation addressing their concerns." People do not need or want laws that make equal rights impossible unless these people seek to restrict the rights of others. In any case, legislators are the ones in a position to "enact" laws. People with disabilities who also have the power to enact laws would be referred to as legislators when performing their governmental function.Explanation for Incorrect Answer C :Choice (C) is incorrect. "Ascertain" means to find out, and "consolidate" means to unite. If one were to insert these terms into the text, the sentence would read "Like many other groups of people in the United States whohave needed laws to ascertain equal rights, Americans with disabilities have had to consolidate legislation addressing their concerns." Abstract concepts like civil rights are not something that people "ascertain." In addition, it is unclear how people would benefit from consolidating different pieces of legislation.Explanation for Incorrect Answer D :Choice (D) is incorrect. "Compound" in this context means to increase the extent of, and "contend with" means to deal with something difficult or undesirable. If one were to insert these terms into the text, the sentence would read "Like many other groups of people in the United States who have needed laws to compound equal rights, Americans with disabilities have had to contend with legislation addressing their concerns." Though "compound" can be used to mean to increase the extent of something, that use of "compound" is normally found in set phrases like "compound an error," where the object of the verb is something undesirable. Also, people desiring a particular piece of legislation do not need to "contend with" legislation that addresses their concerns; they would need, rather, to "contend with" legislation that rejects their concerns.Explanation for Incorrect Answer E :Choice (E) is incorrect. "Suppress" in this context means to curtail or limit, and "ratify" means to validate officially. If one were to insert these terms into the text, the sentence would read "Like many other groups of people in the United States who have needed laws to suppress equal rights, Americans with disabilities have had to ratify legislation addressing their concerns." It is hard to imagine why people would seek to limit their own civil rights. Moreover, only legislators have the power to ratify laws; other people can get that power only when they are elected or appointed as legislators.2ANSWERS AND EXPLANATIONSExplanation for Correct Answer A :Choice (A) is correct. "Motley" means having many different varieties. If one were to insert this term into the text, the sentence would read "The café attracts a motley clientele: a startlingly heterogeneous group of people collects there." The colon at the end of the main clause implies that the information that follows it will be a list or an explanation. In this case, the second clause provides a clear explanation of why the clientele was described as motley—that people attracted to it are heterogeneous, or quite unlike one another. Explanation for Incorrect Answer B :Choice (B) is incorrect. "Callous" means hardened. If one were to insert this term into the text, the sentence would read "The café attracts a callous clientele: a startlingly heterogeneous group of people collects there." A sentence containing a colon typically provides a list or an explanation after the colon. This sentence, however, provides a comment following the colon that in no way explains how or why the clientele should be considered hardened.Explanation for Incorrect Answer C :Choice (C) is incorrect. "Languid" means lacking energy. If one were to insert this term into the text, the sentence would read "The café attracts a languid clientele: a startlingly heterogeneous group of people collects there." The second clause of the sentence does not explain why the writer considers the clientele to be languid; this is inconsistent with the use of a colon.Explanation for Incorrect Answer D :Choice (D) is incorrect. "Mysterious" means difficult to explain. If one were to insert this term into the text, the sentence would read "The café attracts a mysterious clientele: a startlingly heterogeneous group of people collects there." The second clause of the sentence does not explain why the clientele is mysterious, which is inconsistent with the use of a colon. Saying that a group of people is quite varied does not explain why it was described as mysterious.Explanation for Incorrect Answer E :Choice (E) is incorrect. "Humane" means kind or compassionate. If one were to insert this term into the text, the sentence would read "The café attracts a humane clientele: a startlingly heterogeneous group of people collects there." Saying that the group of people consists of many different kinds does not explain why the clientele was earlier described as humane. The colon ending the first clause, however, implies that an explanation of the statement in the first clause will appear in the second clause.3ANSWERS AND EXPLANATIONSExplanation for Correct Answer C :Choice (C) is correct. "Copious" means abundant, and "amassed" means accumulated. If one were to insert these terms into the text, the sentence would read "The second edition of the textbook provides copious footnotes; since the first edition, the editors have apparently amassed a great deal of background data." The structure of the sentence indicates that the second clause will help explain the first clause. It makes sense to say, then, that it is because the editors have collected a great deal of extra information that the new edition of the book has so many footnotes (typically used to provide background).Explanation for Incorrect Answer A :Choice (A) is incorrect. "Meager" means small in quantity, and "accumulated" means brought together. If one were to insert these terms into the text, the sentence would read "The second edition of the textbook provides meager footnotes; since the first edition, the editors have apparently accumulated a great deal of background data." The second clause of the sentence is presented as an explanation of the first clause. However, the reader would expect the second clause to say why the editors included such a small number of footnotes; the second clause, in fact, does the opposite.Explanation for Incorrect Answer B :Choice (B) is incorrect. "Illegible" means unreadable, and "clarified" means made clear or understandable. If one were to insert these terms into the text, the sentence would read "The second edition of the textbook provides illegible footnotes; since the first edition, the editors have apparently clarified a great deal of background data." With those two terms inserted, the two clauses of the sentence do not make much sense together. Editors would not deliberately put unreadable footnotes in a book. The second clause does not respond to this puzzling situation.Explanation for Incorrect Answer D :Choice (D) is incorrect. "Voluminous" in this context means great in number, and "excised" means cut out. If one were to insert these terms into the text, the sentence would read "The second edition of the textbook provides voluminous footnotes; since the first edition, the editors have apparently excised a great deal of background data." The structure of the sentence makes the reader expect that the second clause will help to explain something about the large number of footnotes. The second clause, however, unhelpfully talks about the removal of information, without saying how this is supposed to be compatible with the insertion of the many footnotes.Explanation for Incorrect Answer E :Choice (E) is incorrect. "Monotonous" in this context means repetitiously dull, and "embellished" means enhanced. If one were to insert these terms into the text, the sentence would read "The second edition of the textbook provides monotonous footnotes; since the first edition, the editors have apparently embellished a great deal of background data." It does not make sense to say that the editors have enhanced data to make for dull footnotes in the new edition of a book.4ANSWERS AND EXPLANATIONSExplanation for Correct Answer A :Choice (A) is correct. "Dubious" means in doubt, and "self-serving" means tending to address one's own needs or desires. If one were to insert these terms into the text, the sentence would read "Professor Fernandez has been dubious about most of the purportedly humanitarian aspects of the colonial government and has insisted that its actions were, on the contrary, self-serving." The first missing term describes the professor's attitude toward the government's supposed humanitarianism. The phrase "on the contrary" prepares the reader to believe that the second missing term will be incompatible with "humanitarian aspects." A scholar would indeed doubt that the programs of a government were humanitarian or charitable if they turned out to serve the selfish needs of the government itself.Explanation for Incorrect Answer B :Choice (B) is incorrect. "Enthusiastic" means having great appreciation, and "contemptible" means worthy of strong dislike. If one were to insert these terms into the text, the sentence would read "Professor Fernandez has been enthusiastic about most of the purportedly humanitarian aspects of the colonial government and has insisted that its actions were, on the contrary, contemptible." A person who finds a government's actions despicable would not be enthusiastic about that government.Explanation for Incorrect Answer C :Choice (C) is incorrect. "Disparaging" means belittling, and "sporadic" means occurring at irregular intervals. If one were to insert these terms into the text, the sentence would read "Professor Fernandez has been disparaging about most of the purportedly humanitarian aspects of the colonial government and has insisted that its actions were, on the contrary, sporadic." Saying that certain actions occur at irregular intervals does not serve as reasonable grounds for the charge that a government is not genuinely interested in promoting humanitarian goals. Specifically, the phrase "on the contrary" leads the reader to expect that "humanitarian" goals would be incompatible with "sporadic" actions. Such a contrast, however, does not exist. Explanation for Incorrect Answer D :Choice (D) is incorrect. "Excited" means emotionally aroused, and "gratuitous" in this context means unnecessary. If one were to insert these terms into the text, the sentence would read "Professor Fernandez has been excited about most of the purportedly humanitarian aspects of the colonial government and has insisted that its actions were, on the contrary, gratuitous." Someone so excited about a government would be unlikely to claim that its humanitarian actions were unnecessary.Explanation for Incorrect Answer E :Choice (E) is incorrect. "Disillusioned" means very disappointed, and "benevolent" means well-intentioned. If one were to insert these terms into the text, the sentence would read "Professor Fernandez has been disillusioned about most of the purportedly humanitarian aspects of the colonial government and has insisted that its actions were, on the contrary, benevolent." One would expect the humanitarian actions of a government to be benevolent, or well-intentioned. Therefore, the expectations set up by the words "on the contrary" are not fulfilled. A person disillusioned by a government would not explain that position by pointing out that the government's humanitarian actions were well-intentioned.5ANSWERS AND EXPLANATIONSExplanation for Correct Answer E :Choice (E) is correct. "An amalgamation" means a mixture. If one were to insert this term into the text, the sentence would read "Concrete is an amalgamation of many materials, a composite of rocks, pebbles, sand, and cement." A comma placed in a position like the one after "materials" normally introduces a phrase thathelps to define or explain the noun phrase preceding the comma. In this case, the phrase explains that the amalgamation is a composite, or mixture, of distinct materials.Explanation for Incorrect Answer A :Choice (A) is incorrect. "A conflagration" means a large fire. If one were to insert this term into the text, the sentence would read "Concrete is a conflagration of many materials, a composite of rocks, pebbles, sand, and cement." It does not make sense to say that concrete is a fire.Explanation for Incorrect Answer B :Choice (B) is incorrect. "A distillation" means a purification by boiling and revaporization. If one were to insert this term into the text, the sentence would read "Concrete is a distillation of many materials, a composite of rocks, pebbles, sand, and cement." The product of a distillation would probably be a liquid, not a solid.Explanation for Incorrect Answer C :Choice (C) is incorrect. "A concordance" means an alphabetical index of words in a text. If one were to insert this term into the text, the sentence would read "Concrete is a concordance of many materials, a composite of rocks, pebbles, sand, and cement." Concrete and the processes used to make it have nothing to do with book indexes.Explanation for Incorrect Answer D :Choice (D) is incorrect. "An aberration" means a deviation from the expected course. If one were to insert this term into the text, the sentence would read "Concrete is an aberration of many materials, a composite of rocks, pebbles, sand, and cement." Neither concrete nor the processes of making it can be called deviations from any course of action.6ANSWERS AND EXPLANATIONSExplanation for Correct Answer E :Choice (E) is correct. Moraga is cited as an example of a writer who found it difficult to decide whether to write in English or in Spanish. The title of her book is half in English and half in Spanish, and her comment "I lack language" (line 3) reinforces her sense that there is no satisfactory resolution of her dilemma.Explanation for Incorrect Answer A :Choice (A) is incorrect. The passage says that Hispanic American writers face problems in choosing a language to write in, but it says nothing about problems associated with getting works published after they have been written.Explanation for Incorrect Answer B :Choice (B) is incorrect. Moraga is cited as a writer experiencing a problem frequently faced by Hispanic American writers. The passage is primarily concerned with this general problem, not with this particular writer and her achievements.Explanation for Incorrect Answer C :Choice (C) is incorrect. According to the passage, the title of Moraga's book expresses the difficulty she perceives "in writing in one language when one has lived in another" (line 7-8). There is no suggestion by the author of the passage as to whether Moraga is regarded as being especially expressive as a writer. Explanation for Incorrect Answer D :Choice (D) is incorrect. The passage does not say anything about new artistic approaches, nor does it suggest that Moraga's approach is a novel one. Rather, the point is that the difficulties Moraga has experienced in choosing a language are common to Hispanic American writers.7ANSWERS AND EXPLANATIONSExplanation for Correct Answer D :Choice (D) is correct. The problem presented in the passage is that of "narrating personal experiences in one language when one has lived in another" (lines 7-8). Someone described as a Russian novelist living in the United States is likely to have lived much of his or her life in Russia, speaking Russian, and whatever insights such a person has are likely to be based, at least in part, on experiences in Russia. So the problem of a Russian novelist living in the United States who has difficulty expressing insights in American English is similar to the problem presented in the passage.Explanation for Incorrect Answer A :Choice (A) is incorrect. While a Hispanic American living in a South American country might, like Moraga, feel some conflict between the use of Spanish and English, painters do not primarily employ the medium of language in their work, so this is not a close analogy. Further, there is no mention of bilingual writers' ability to sell their work.Explanation for Incorrect Answer B :Choice (B) is incorrect. The problem experienced by the Cherokee columnist is how much background information needs to be supplied to make writings dealing with Native American cultures understandable to readers of national newspapers. This is a different problem from the one presented in the passage, which has to do with using a different language to write about experiences than the one used while living those experiences. A Cherokee columnist might also have this problem, but not as a result of making the assumption that most readers are unfamiliar with Native American cultures.Explanation for Incorrect Answer C :Choice (C) is incorrect. The problem in the passage is that of using one language in daily life and then trying to write about one's experiences in a different language. An African American novelist is unlikely to be writing in a completely different language than the one spoken throughout life. Moreover, the historical past of African Americans is not something that a living African American novelist can have experienced.Explanation for Incorrect Answer E :Choice (E) is incorrect. Trying to write essays for two audiences with very different linguistic and cultural backgrounds poses a different sort of problem from that described in the passage.8ANSWERS AND EXPLANATIONSExplanation for Correct Answer B :Choice (B) is correct. The author characterizes the movie in which HAL appears as a "masterpiece" (line 1) and describes the portrait of HAL as "finely honed" (line 3), or precise, which clearly expresses appreciation. Explanation for Incorrect Answer A :Choice (A) is incorrect. The attitude toward the portrait of HAL and toward HAL's creators is one of admiration, not resentment, or ill will.Explanation for Incorrect Answer C :Choice (C) is incorrect. There is no indication of any confusion or ambivalence on the part of the author toward the portrait of HAL that Clarke and Kubrick created. It is one of admiration and appreciation throughout.Explanation for Incorrect Answer D :Choice (D) is incorrect. The author admires the portrait of HAL, but goes on to say that computers are in some ways even better now. So the author's attitude is not one of veneration or wonder, or awe.Explanation for Incorrect Answer E :Choice (E) is incorrect. There is no indication that the author is being sarcastic in admiring the depiction if HAL. Since the author is not ridiculing the portrait, the author's attitude toward the portrait of HAL is not derisive.9ANSWERS AND EXPLANATIONSExplanation for Correct Answer A :Choice (A) is correct. In the last sentence, the author points out that besides being "vastly smaller and more portable than HAL" (line 10), today's computers use software interfaces that do not require the type of manual controls required for HAL; in this context, site mobility, and new software interfaces are clearly advantages.Explanation for Incorrect Answer B :Choice (B) is incorrect. The last sentence makes it clear that the availability of software interfaces that make manual controls unnecessary is an aspect of the future that Clarke and Kubrick failed to envision. Explanation for Incorrect Answer C :Choice (C) is incorrect. The "software interfaces" (line 11) referred to make it possible to use today's computers without the types of manual controls required to operate HAL. Such software interfaces were not envisioned by HAL's creators. Manual controls are presented as the only way—not one of many ways— that human beings could access computers like HAL.Explanation for Incorrect Answer D :Choice (D) is incorrect. "Software" is referred to in the passage only in connection with the kind of software interfaces that make certain types of manual controls unnecessary. There is no mention of attempts to override software.Explanation for Incorrect Answer E :Choice (E) is incorrect. By referring to "software interfaces" (lines 11) and the manual controls that such software makes unnecessary, the author suggests that current computers are superior to HAL in certain respects. But nothing is either said or implied about whether current computers are inferior to HAL in their ability to simulate human intelligence and emotions10ANSWERS AND EXPLANATIONSExplanation for Correct Answer A :Choice (A) is correct. In the beginning of the sentence in which the quotation from the Constitution occurs, women are contrasted with "indentured servants, slaves, and American Indians" (line 6). Women who did not belong to one of these other groups were classified by the Constitution as among "the whole number of freepersons" (line 10). But for these other groups, who were not "free persons," the question of voting and being elected to public office was seen as an issue, whereas for women the issue did not even arise. The quotation from the Constitution emphasizes the internal inconsistency—of classifying women as equivalent to men in one respect and as being unequal to men in another respect.Explanation for Incorrect Answer B :Choice (B) is incorrect. The quotation from the Constitution serves to emphasize that women were "free persons" in a very limited sense, not to demonstrate that women were free, while servants, slaves, and American Indians were not.Explanation for Incorrect Answer C :Choice (C) is incorrect. The passage specifically says that women could not vote or "be elected to public office" (line 11-12). There is no suggestion that women could get around this restriction by being appointed rather than elected.Explanation for Incorrect Answer D :Choice (D) is incorrect. According to the passage, equitable representation, required a reasonably accurate count of "the whole number of free persons" (line 10) in a state. The passage does suggest that there were many people who did not get counted because they were not classified as "free persons," but this is not the same as illustrating the difficulty "of achieving equitable representation."Explanation for Incorrect Answer E :Choice (E) is incorrect. The passage does not use the term "free citizen." The quotation is used in the course of making the point that women were regarded as "free persons" (line 10). Nothing in the passage suggests that someone could be a free person but not a free citizen.11ANSWERS AND EXPLANATIONSExplanation for Correct Answer E :Choice (E) is correct. The passage says that "women in large numbers had been involved in political actions in the American Revolution" (lines 14-15), and goes on to mention “fund-raising, tea boycotts, and actions against profiteering merchants” as examples of ways women had found for "exerting influence on political events" (lines 17-18).Explanation for Incorrect Answer A :Choice (A) is incorrect. The passage mentions “fund-raising, tea boycotts, and actions against profiteering merchants” as ways women had found for "exerting influence on political events" (lines 17-18). But exerting influence on events connected with the American Revolution is not the same as altering the course of the American Revolution.Explanation for Incorrect Answer B :Choice (B) is incorrect. The activities mentioned in lines 18-19 are cited as examples of political activities undertaken by women in support of the American Revolution. There is no suggestion that the women involved saw these activities as protests against specifically male dominance as opposed to protests against British dominance in general. It is only later that the passage discusses ways women began to raise the issue of rights for women.Explanation for Incorrect Answer C :。
SAT考试2024数学历年题目精讲在本篇文章中，我们将重点讲解SAT考试2024年数学部分的历年题目。
我们将按照题目类型进行分类，并为每个题型提供详细的解答和解题技巧，帮助考生更好地应对这些题目。
一、单选题1. 题目描述：某汽车展厅共展出了150辆汽车，其中的三分之一是SUV车型，四分之一是轿车车型，其余的是其他车型。
问展厅中轿车车型的数量是多少？解答与技巧：首先，计算出SUV车型的数量：150 * (1/3) = 50辆。
然后，计算出其他车型的数量：150 - 50 - 150 * (1/4) = 50辆。
所以，轿车车型的数量是50辆。
2. 题目描述：某商场举办了一次打折活动，原价100元的商品现在只需80元购买。
如果小明购买了3件该商品，他需要支付多少钱？解答与技巧：首先，计算出每件商品的折扣金额：100 - 80 = 20元。
然后，计算出小明需要支付的金额：3 * 20 = 60元。
所以，小明需要支付60元。
二、多选题1. 题目描述：以下哪些数是正整数？（A）-1（B）0（C）1（D）2解答与技巧：在SAT考试中，如果题目要求选择多个选项，我们需要仔细审题。
在这个题目中，需要选择正整数，所以选项B和A都不是正整数。
所以正确答案是（C）和（D）。
2. 题目描述：以下哪些图形具有对称性？（A）正方形（B）长方形（C）圆形（D）三角形解答与技巧：我们需要判断每个选项是否具有对称性。
在这个题目中，正方形和圆形都具有对称轴，所以正确答案是（A）和（C）。
三、填空题1. 题目描述：若a + a^-1 = 5，求a^2 + a^-2的值。
解答与技巧：首先，我们可以对等式两边进行平方操作，得到a^2+ 2 + a^(-2) = 25。
然后，我们需要解方程，将等式左边与右边的常数项进行抵消，得到a^2 + a^(-2) = 23。
2. 题目描述：某比赛共有10个选手参加，其中3个选手退出比赛，剩余的选手中将决出第一名、第二名和第三名。
SAT数学填空题的答题技巧
SAT数学填空题的答题技巧
考生需要把答案写在SAT数学填空题的答题界面最上面的空格里，也需要把下面的答案涂黑。
1)在图表里显示的符号只有数字0~9，小数点，/。
所以SAT数
学填空题只可能出现之间的答案，如果算出了这个闭区间以外的答案，请迅速停下来，重新读题，检查代入的数据是否正确，计算的'
结果是否是题目所要求的，单位是否统一等。
2)一个数字填写在任何位置都可以得分，比如35，可以填写在
第1，2格内;2，3格内;3，4格内。
但是从习惯上来说建议使用右
对齐方式填写。
还要注意的是，一个数字不可以分开写，比如35不
可以3写在第1格，5写在第3格。
3)SAT数学填空题的填写过程中，不要四舍五入你的答案。
比如你得出了一个无限循环小数，填写和都会得分，但是你很可能会舍入的时候出错。
所以计算器上显示了什么数字，你只要把够
填入的填入就可以了，不必花时间去做舍入运算。
千万不要把可以
写为3位树的答案舍为1~2位数，比如，不要舍成或者，可以填满
空格一定要填满。
SAT OC TEST 1Section 21. Despite ------- on taking rare tamarins from theirhabitat, the illegal trade in the tiny monkeysremains -------.（bingo continue/remain模式的特例，两空时联系整句话）(A) commendations . . obligatory(B) consultations . . predominant(C) restrictions . . local(D) penalties . . illicit(E) prohibitions . . active解析：空格1填入一个名词，表示对“将绢毛猴从他们的栖息地带走（taking rare tamarins form their habitat）”态度。
空格2填入一个形容词，表示“对小猴的非法交易（illegal trade in the tiny monkey）”的状态。
“remain”构成“remain/continue”模式所以空格2要体现“非法的（illegal）”的语义，“despite”表示前后反义，所以空格1和2填入反义词，采用正负。
选项：A 称赞；必要的，强制的。
B 咨询，磋商；占优势地位的。
C 限制；本地的。
D 惩罚；不合法的。
E 禁止；活动频繁的。
答案为E。
选项D虽然第二个空符合，但是不和整个语义。
翻译：尽管已经禁止将绢毛猴从他们的栖息地带走，但是对小猴的非法交易仍然和猖獗。
拓展：tamarins：绢毛猴是一种松鼠般大小的灵长类动物，胡子酷像德国皇帝威廉二世。
生活在亚马逊盆地，东秘鲁，玻利维亚北部和巴西西部，多生活在热带雨林深处。
2. Representing a round world on a flat surface is impossiblewithout some -------: the Mercator projectionmap shows Greenland as over ten times larger thanMexico, a country in fact only slightly smaller thanGreenland.(A) oversight (B) simplification(C) distortion (D) sophistication(E) superficiality解析：空格填入一个名词，表示“没有…在平面上表示圆的世界是不可能的（. Representing a round world on a flat surface is impossiblewithout some…）”的含义。
冒号表示前后同义，可以看做是修饰解释模式的变体，所以空格应该体现“格林兰岛被夸大”的语义。
选项：A 疏忽。
B 简化。
C 扭曲。
D 诡辩。
E 肤浅。
答案为C。
选项D没有精密的意思。
翻译：没有事实的扭曲在平面上表示圆的世界是不可能的：墨卡托投影地图表示格林兰岛是墨西哥的十倍，但是事实上格林兰岛只比墨西哥大一点。
拓展：墨卡托投影地图（Mercator projection map）墨卡托投影，是正轴等角圆柱投影。
由荷兰地图学家墨卡托(G.Mercator)于1569年创拟。
假想一个与地轴方向一致的圆柱切或割于地球，按等角条件，将经纬网投影到圆柱面上，将圆柱面展为平面后，即得本投影。
墨卡托投影在切圆柱投影与割圆柱投影中，最早也是最常用的是切圆柱投影。
3. The highly publicized redesign of the car is essentially-------: the exterior has been updated, but the engineremains unchanged.（bingo cosmetic的解释+选项E的排除+“remain/continue”模式）(A) intuitive (B) cosmetic (C) incoherent(D) consequential (E) retroactive解析：空格填入一个形容词，修饰“汽车的重新设计（the redesign of the car）”，冒号表示前后同义，所以空格应体现“外表翻新，但是内部发动机依然没变（the exterior has been updated, but the engine remains unchanged）”的语义。
选项：A 直觉的。
B 为了外表的，装饰性的，没有实质的，肤浅的（花瓶的：done or made for the sake of appearance；: DECORATIVE, ORNAMENTAL；not substantive : SUPERFICIAL）。
C 不连贯的，不一致的。
D 作为结果的；重要的。
E 回溯到从前的有效的状态的（made effective as of a date prior to enactment, promulgation, or imposition）。
答案为B。
选项E表示恢复到原来好的状态，不能确定车之前的发动机或是外形是否是好的状态，因此排除。
翻译：高调亮相的新版车实质上只是花瓶而已：它的外表翻新了，但是发动机还是没有改变。
拓展：对于汽车的翻新是明令禁止的：营运大客车的使用年限调整为10年，达到报废标准后要求继续使用的按现行规定程序办理。
延缓报废使用不超过4年：延长使用期间每年定期检验4次。
一个检验周期连续3次检验都不符合国家标准的，收回号牌和行驶证，通知机动车所有人办理注销登记。
4. Many of our memories are -------, escaping our consciousnessjust as we strain to recall a face or a name.（bingo 修饰解释模式+提炼词汇）(A) elusive (B) pervasive (C) unvaried(D) insensitive (E) impractical解析：空格填入一个形容词，修饰“我们的记忆（many of our memories）”。
逗号后面的“ing”从句与空格构成修饰解释模式，所以空格应体现“就是正当我们努力回忆一张人脸或是名字的时候就逃离了我们的意识（our consciousness just as we strain to recall a face or a name）”的语义。
并且尤其体现“逃离（escaping）”的语义。
选项：A 逃避的，难懂的。
B 弥漫的，普遍的。
C 不变的。
D 不敏感的。
E 不实际的。
答案为A。
翻译：我们很多的记忆是倾向与逃避的：他们在我们努力回忆一张人脸或是名字的时候就逃离了我们的意识。
拓展：记忆的规律就是忘记，只有忘记我们才能够记忆。
研究人类的记忆曲线可以知道，记忆的本质不是在一个记忆目标上面花很长时间，而是在不同时间利用很少的时间对目标进行记忆而在不同的时间对大脑进行刺激。
背单词的方法也是这样，多次重复刺激，因此应该过遍数记忆。
5. Although Caroline Gordon was rigorously objectivein her journalistic writing, her lively and ------- privatecorrespondence ------- a delightful capacity for bitingcommentary on the social scene.(A) incisive . . disguised(B) eloquent . . derided(C) dispassionate . . demonstrated(D) exuberant . . minimized(E) entertaining . . exhibited解析：空格1填入一个形容词，修饰“个人的反应（private correspondence）”，空格2填入一个动词，表示她的反应对“令人高兴的对社会时事发表犀利的评论的能力（delightful capacity for biting commentary on the social scene）”做的动作。
“although”表示前后反义，所以空格1填入一个“严格坚持客观的（rigorously objective）”的反义，“犀利的（biting）”的同义，“生动的，活泼的（lively）”的同义。
所以选项AE候选。
A选项第二个词“掩饰（disguise）”不符合语义，选项E正确。
翻译：虽然CG对于她的新闻稿坚持严格的客观性，但是她活泼有趣的个人信件展现了她对社会时事犀利评论的调侃能力。
拓展：记者工作和新闻工作者的第一要务就是客观性，但是在有些谈话类节目中，主持人和嘉宾是抱着一种开玩笑的笑看时事的态度进行分析和评论的。
6. An effective member of a debating team must focusclearly on the ------- issue and avoid ------- arguments.(A) equivocal . . obstreperous(B) designated . . pertinent(C) comprehensive . . general(D) principal . . peripheral(E) subtle . . significant解析：空格1和2都填入形容词，分别修饰“主题（issues）”和“驳论（arguments）”，逻辑同义，所以空格填入要体现“有效的（effective）”的语义。
所以空格1填入一个正评价词汇，空格2填入一个负评价词汇。
选项：A 含糊其辞的；倔强的。
B 指定的；有关的，恰当的。
C 综合性的；一般的。
D 主要的；边缘的，不重要的。
E 细节的；重要的。
答案为D。
翻译：一个有效的辩论选手必须清楚地将注意力放在主要的议题上而不是那些不重要的辩论上。
拓展：电影《十二罗汉》将的就是辩论的事情，也有助于同学们理解美国的法律裁判制度。
7. The ------- with which merchants and landowners inearly-nineteenth-century Maryland and Virginia -------Joshua Johnston’s professional services attests to hisartistic skill as a portrait painter.（bingo+正负假定法+简单句复杂句生成过程）(A) avidness . . sought(B) diffidence . . purchased(C) patience . . replaced(D) elegance . . regarded(E) zealousness . . overlooked解析：空格1填入一个名词，表示“十九世纪早期在M和V的商人和土地拥有人（merchants and landowners in early-nineteenth-century Maryland and Virginia）”的态度。
