1、请教三道SAT语法题

1.The Stegosaurus, (plant-eating dinosaurs) with (protective) bony plants and tail spikes, was (once common in) (what is now) Colorado.为什么不选B改为Protectively呢？

2.An amateur (herself), the accountant offered (to help) the artist with his business accounts,complicated (as they were) (by) his unusual system of record keeping.

可是为什么我觉得应该把by改成as，

3.Some experts say (that of all) the musical forms that constituted African music in the second (half of the) twentieth century, Congolese rumba and its rambuctious offsprings,soukous,(were) the (more) influential.

先谢谢了

2、SAT数学题求解

The integers 1 through 6 appear on the six faces of a cube, one on each face. If three such cubes are rolled , what is the probability that the sum of the numbers on the top faces is 17 or 18? 答案是1/54,求思考过程和详细解释

3、SAT数学题型分类有哪些

SAT数学考试内容

1、第一部分25分钟，包括15个选择题，5个网格题，不允许使用计算器。

2、第二部分55分钟，30道选择题，8道网格题，本部分可以使用计算器。

考试知识点

1、代数基础

19个问题，包括：解方程和方程组、创建表达式、方程和不等式来表示量之间的关系和解决问题、重新排列和解释公式。

2、问题解决和数据分析

17个问题，包括：使用比率、比例、百分比

和单位创建和分析关系；描述图形显示的关系；总结定性和定量数据。

3、高等数学入门

16个问题，包括：使用表达式的结构重写表达式；创建、分析和求解二次和高阶方程；使用多项式来解决问题。

4、数学附加题

6个问题，包括：面积和体积计算；用定理研究线、角、三角形和圆；三角函数等。

解题技巧

1、认真阅读题目

如果考生仅仅粗略阅读了题目就急忙进行解题，不仅无法体会题目的具体难度和最佳解题路径，而且很有可能会落入题干圈套，做出错误的回答。

2、思考最快捷的解题方法

在SAT的数学题的解答中，所需要的全部信息都提供给了每个考生。因此，考生在仔细阅读题目以后所需要做的就是思考解题的最佳方法。

每一道SAT数学题都可能有一种乃至多种解题技巧，但考生还是要尽量寻找最为便捷的途径，节省考场上宝贵的时间。

3、跳过一时难以解决的题目

尽管SAT数学题中绝大多数题目难度都不大，而在一些貌似简单的数学题目中，考生也往往会遭遇到各种各样的陷阱。

4、9天搞定SAT阅读-Day 7 More On Analytical Questions

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【跟着我们走，高分在招手】·【SAT备考·阅读篇】

在第三期中，我们介绍了SAT中的分析性问题。这类分析性问题很重要，因为经常会在SAT阅读中出现，而且比一般理解性问题难。但是，掌握了方法后，这类问题就不算难了。

今天我们来看一下解答分析性问题的一些技巧。

大家首先要知道的是什么样的问题属于分析性问题。理解性问题要求考生回顾文章的内容，而分析性问题则要求考生研究、思考、解释、推断。在理解性问题中，问题的答案从原文中就可以找到，例如：

Why doesn\'t Sarah want to meet Emily?

这就是理解性问题，原文中暗示或明确说明了Sarah不想见到Emily的原因。但分析性问题却不同，例如：

Which of the following words best describes Sarah?

这一问题要求大家从文中的描述总结Sarah的性格，然后再选择答案。这一题显然比上一题需要更多的思考。

一旦确定了问题属于分析性问题，下面要做的就是思

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考：What is the question REALLY asking?（这一题真正想问什么？）例如，思考下面的问题：

With which of the following statements would the author most likely agree?

这一题实际上是要求考生pick the statement that "matches" the passage（选出与文章内容相匹配的陈述）。

再来看一题：

It can be inferred from the selection that Tesla:

A. was an awful businessman

B. did not have the same education as Edison

C. was overly trusting of human nature

D. was a natural competitor

E. misjudged Edison\'s character

这一题实际上问的是："What is true about Tesla?"（有关Tesla的描述，哪一项是正确的）。

一旦确定了问题类型，在做题时就可以采用一些逻辑方法。

Strategies to eliminate analysis choices：

Avoid extreme choices.避免绝对项

绝对项正确的概率非常小。例如，在上一题中，"awful"这一次就过于绝对，应排除。

Synonyms don\'t count.排除同义词

尤其是具有相同意义的选项。这样相同意思的选项基本不是正确答案。在上一题中，B项和E项的意思相近(misjudgment of character = overly trusting)，因此这两项都不是正确答案，因为正确答案只有一个。

Don\'t over-extend.不要过度推测

不要做出2-3个推论来证明一个答案。你可能并不知道这个推论的正确性，也许这个推断基于错误的或是不准确的假设。

记住，这些tips只是在大家选不出答案的时候用，并不绝对，在考试中，大家还是要考虑所有的选项。

1. The candidate _____ when asked why he had left his last job; he did not want to admit that he had been ____ .

A. demurred - promoted B. confided - banned C. dissembled - dismissed

D. rejoiced - wrong E. hesitated - lauded

2. Tennyson was a well-loved poet; no other poet since has been so ____ .

A. lionized B. attacked C. decried

D. poetical E. abhorred

3. The parliamentary session degenerated into ____ with politicians hurling ____ at each other and refusing to come to order.

A. mayhem - banter B. disarray - pleasantries C. tranquillity - invectives

D. chaos - aphorisms E. anarchy - insults

4. The admiral ____ his order to attack when he saw the white flag raised by the enemy sailors; he was relieved that he could bring an end to the ____ .

A. reiterated - hostilities B. countermanded - fighting C. commandeered - truce

D. renounced - hiatus E. confirmed - aggression

5. In a fit of ____ she threw out the valuable statue simply because it had belonged to her ex-husband.

A. pique B. goodwill C. contrition

D. pedantry E. prudence

6. Many 17th century buildings that are still in existence have been so ____ by successive owners that the original layout is no longer ____ .

A. preserved - visible B. modified - apparent C. decimated - enshrouded

D. salvaged - required E. neglected - appropriate

7. Since ancient times sculpture has been considered the ____ of men; women sculptors have, until recently, consistently met with ____.

A. right - acceptance B. domain - approbation C. domicile - ridicule

D. realm - condolence E. prerogative - opposition

8. ____ action at this time would be inadvisable; we have not yet accumulated sufficient expertise to warrant anything other than a ____ approach.

A. precipitate - cautious B. hesitant - wary C. vacillating - circuitous

D. decisive - firm E. ponderous - direct

9. Many biologists have attempted to ____ the conditions on earth before life evolved in order to answer questions about the ____ of biological molecules.

A. mimic - fitness B. standardize - shapes C. replicate - reactions

D. simulate - origin E. ameliorate - evolution

10. Harding was unable to ____ the results of the survey; although entirely unexpected, the figures were obtained by a market research firm with an ____ reputation.

A. accept - peerless B. discount - impeccable C. fault - mediocre

D. counter - unenviable E. believe - fine

答案请戳：9天搞定SAT阅读-Day 7 More On Analytical Questions 【练习答案】

上期文章：9天搞定SAT阅读-Day 6 Two Passage Questions

下期文章：9天搞定SAT阅读-Day 8Extension Questions

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