There will be seven performers in a talent show: a guitarist, a hypnotist, a juggler, a magician, a pianist, a singer, and a ventriloquist. Exactly three of the performers—the guitarist, the pianist, and the singer—will each require a recorded musical accompaniment. The schedule for the show has seven consecutive time slots. Each of the seven performers will appear in exactly one time slot, and each time slot will have exactly one performer appearing in it. The schedule must follow the rules below:　

　　The juggler must appear first.

　　The ventriloquist cannot appear immediately after the magician.

　　At most two performers requiring a recorded musical accompaniment can appear　in succession.

　　Which of the following is an acceptable schedule for the last four performers in the show?

　　Fourth Fifth Sixth Seventh

　　Juggler Hypnotist Guitarist Pianist

　　Guitarist Magician Ventriloquist Singer

　　Magician Pianist Singer Guitarist

　　Singer Guitarist Pianist Hypnotist

　　Ventriloquist Hypnotist Magician Singer

　　答案：(E)

　　这是一道非常简单的排列题，但是分析题在于你会不会做，而在于你花了几分钟把它做完，在于速度。我们通过讲解几道题来体会一下如何迅速定位答案。

　　读题：7个表演者g,h,j,m,p,s,v参加表演，其中3个g,p,s有音乐伴奏。有7个位置，一人一个。

　　写条件：

　　1、j=1 (表示j在第一个位置)

　　2、～mv (表示v不能出现在m的后面)

　　3、～(gps) (表示需要音乐伴奏的3人中最多只有2人连续)

　　条件总结：

　　**注意g.p.s为等价元素（当然，如果在问题中又出现新的限制条件后，就不一定是）

　　If the ventriloquist appears third, the singer appears fifth, and the pianist appears sixth, which of the following must be true?

　　The guitarist appears second.

　　The guitarist appears fourth.

　　The hypnotist appears second.

　　The magician appears fourth.

　　The magician appears seventh.

　　答案：(A)

　　If the singer appears third and the pianist appears fourth, the guitarist must appear either first or second

　　second or fifth

　　second or seventh

　　fifth or sixth
　　sixth or seventh

　　答案：(E)

　　If the ventriloquist appears fifth and the hypnotist appears sixth, which of the following must be true?

　　The guitarist appears either third or seventh.

　　The magician appears either second or third.

　　The pianist appears either second or fourth,

　　The singer appears either second or seventh.

　　The singer appears either third or fourth.

　　答案：(B)

　　如果v=5，h=6，下面哪一个一定正确？

　　解题步骤：

　　1、v=5，条件2：～mv，∴m≠4，

　　2、扫一下选项，选项中都是元素在哪些位置，还剩4个元素，m,g,p,s, g,p,s为等价元素,所以g,p,s的位置只可能为 can be true, 不可能must be true？因此涉及gp，s的都不正确。只有B正确。当然也可用常规方法做，得到m≠4后，还剩4个元素，m,g,p,s, 还有一个条件没有用,～（gps），因此g,p,s不可能占据2,3,4三个连续位置，必有一个在7，m就必须在2/3

　　1 2 3 4 5 6 7

　　j v h

　　If the hypnotist appears sixth and the magician appears seventh, who of the following must be true?

　　The ventriloquist appears third or fourth.

　　The singer appears fourth or fifth.

　　The juggler immediately precedes the pianist.

　　The pianist immediately precedes the guitarist.

　　The singer immediately precedes the hypnotist.

　　答案：(A)

　　如果h=6，m=7，下面哪一个一定正确？

　　解题步骤：

　　1、选项中涉及都是具体位置信息，g,p,s为等价元素，只剩下元素v，答案马上定位到A

　　2、常规方法，4个元素g,p,s,v, 一个条件～(gps)，所剩位置是2，3，4，5，为使它们不能连续，v绝对不能放在两头2/5，v只能放中间3/4。

　　What is the total number of different time slots into any one of which the singer can be scheduled?

　　3

　　4

　　5

　　6

　　7

　　答案：(D)

　　If all of the performers requiring musical accompaniment appear before the magician, who appears sixth, each of the following could be true EXCEPT that the

　　guitarist appears fifth

　　hypnotist appears fourth

　　pianist appears second

　　singer appears fourth

　　ventriloquist appears third

　　答案：(B)

　　如果所有有音乐伴奏的表演者出现在m之前，m=6，下面哪一个可能正确 EXCEPT

　　解题步骤：

　　1、问题用的语气是 can be true EXCEPT, 其实还是一种must be true的问法。选了它就一定违反原文中的条件或题目中加的新条件。

　　2、m=6，条件2：～mv，所以v在m前面，v<6题中附加条件有g,p,s在m前面，而m前面一共还有2,3,4,5 共4个位置，放gpsv 四个元素，剩下一个元素h=7，故选（B）

　　3、本题还可以稍加变化，把v=2/5作为答案，这就等于又考了一下第5题。g,p,s,v在（2,3,4,5), v不能放两头。

　　The equity for women bill was narrowly defeated several times in a country s legislature. Thirty-three votes were required for passage. Thirty-two members of the legislature voted for the bill in 1985, whereas only 30 legislators voted for it in 1987. This was true even though no legislators changed their votes.　

　　Which of the following, if true, best explains why the number of votes for the bill changed from 32 in 1985 to 30 in 1987 ?

　　In 1985 the effort to pass the bill was led by an influential, experienced legislator, whereas in 1987 the effort was led by a little-known, inexperienced　legislator.

　　There was an election in 1986 in which two legislators who supported the bill　lost their seats in the legislature and no one who supported the bill was newly　elected.

　　There was an election in 1986 in which a party leader who did not support the　bill was reelected and the party that was in power lost a seat in the　legislature.

　　In 1986 an organization that opposed the bill mounted an extensive lobbying　campaign to persuade legislators to vote against it.

　　Several provisions of the bill were rewritten between 1985 and 1987 in such a　way that the bill s coverage was expanded considerably.

　　答案：(B)

　　Tinea is a skin infection caused by certain fungi. A significant fraction, of the people who contract tinea have outbreaks of its symptoms again and again. This proves that, for each of these individuals, the original case of tinea was, in fact, never completely cured.The argument above assumes that a person who has outbreaks of tinea symptoms again and again

　　can never be completely cured of tinea

　　does not understand what causes tinea

　　did not get medical treatment for the original case of tinea

　　did not take steps to avoid contracting tinea

　　has not been repeatedly infected with tinea

　　答案：(E)

　　问题：上文论述假设一个一次又一次重复出现tina症状的人怎么样？

　　读题：T是由某种细菌引起的皮肤感染。大量感染T的人一次又一次重新出现这种症状。这证明：对于这些人来说，早期T的症状事实上没有被完全治愈.　

　　分析：

　　上文第四行 this proves 引导结论：早期T没有被完全治愈论据是患者重复出现这种症状，结论是从一个事实、一个现象中得出的，起到了一种解释作用为什么会反复出现呢？是因为没有被完全治愈导致的问题是ASSUMPTION， 一般寻找这样的答案，没有别的原因来解释为什么会反复出现(答案一般有否定概念,但是本题5个选项都具有否定词)　

　　A.不可能被完全治愈A就是结论的重复，起到SUPPORT作用，但不是ASSUMPTION　

　　E.没有被反复感染T如果被反复感染T，也能够解释为什么会反复出现症状，因此E能够作为ASSUMPTION

　　Computer programs are unusual in that they are virtually the only products that have been protected both by patent and by copyright. Patents protect the idea behind an innovation, whereas copyrights protect the expression of that idea. However, in order to win either protection, the idea must be clearly distinguished from its expression.　

　　Which of the following can be properly inferred from the statements above?

　　The idea behind some computer programs can be distinguished from the　expression of that idea.

　　Anyone who writes a computer program is the inventor of the idea of that　program.

　　Most products that are copyrighted are expressions of ideas that are　patented.

　　Few inventors are owners of both patents and copyrights.

　　A patent for a computer program is no more difficult to win than a copyright.

　　答案：(A)

　　问题：下面哪一个能够从上面陈述中推导出来？

　　读题：计算机程序是不寻常的，因为它们事实上是仅有的既被专利又被版权保护的产品。专利保护隐藏在革新后面的思想，而版权保护思想的表达。然而，为了赢得任一种保护，思想必须与表达明显区分开来。

　　A. 隐藏在革新后面的思想可以与思想的表达区分开来(最后一句话in order to引导的，为了赢得任一种保护，思想必须与表达区分开来。而第一句话告诉我们，计算机程序是仅有的既被专利又被版权保护的产品，因此表明，计算机程序的思想和表达是能够被区分的)　

　　B. 任何写计算机程序的人是程序思想的发明者(题目中没有涉及到Anyone如此绝对的概念）

　　C. 大多数被版权保护的产品是被专利保护的思想的表达(题目中第一句话说：computer program is the only product，故C中的most不对)

　　A certain kind of traditional cloth is woven from as many as seven colors of yarn: blue, green, orange, purple, red, white, and yellow. Each piece is woven with a background of exactly one color; and either a human figure or a bird figure, or both, are woven into each piece. The following additional restrictions apply to the use of colors:　

　　Each figure must include at least three colors.

　　The color used for the background of a piece cannot be used in any figures on that piece.