【正文】 ravity has on sea snakes when they are taken out of water to identify problems that terrestrial snakes must have adapted to in order to survive.(A) illustrate what would occur in the circulatory system of terrestrial snakes without adaptations that enable them to regulate their blood pressure in vertical orientations(B) explain why arboreal snakes in vertical orientations must rely on muscle contractions to restore blood pressure to the brain AS在第三段內(nèi)容之后出現(xiàn)，目的是說(shuō)明心腦距離的adaption(C) illustrate the effects of circulatory failure on the behavior of arboreal snakes ND(D) illustrate the superiority of the circulatory system of the terrestrial snake to that of the sea snake。文章并沒(méi)有就adaption的effectiveness做比較(E) explain how changes in spatial orientation can adversely affect the circulatory system of snakes with hearts located in relatively close proximity to their heads。 ND22. It can be inferred from the passage that which of thefollowing is a true statement about sea snakes？(A) They frequently rely on waves of muscle contractions from the lower torso to the head to supplement the work of the heart.。是AS(B) They cannot effectively regulate their blood pressure when placed in seawater and tilted at an angle with the head pointed downward. Line 15藍(lán)色. XF(C) They are more likely to have a heart located in close proximity to their heads than are arboreal 藍(lán)色 XF(D) They bee acutely vulnerable to the effects of gravitational pressure on their circulatory system when they are placed in a terrestrial environment. Line 20(E) Their cardiovascular system is not as plicated as that of arboreal 23. The author suggests that which of the following is a disadvantage that results from the location of a snake’s heart in close proximity to its head? Line 35(A) A decrease in the efficiency with which the snake regulates the flow of blood to the brain。不是較近的心腦距離帶來(lái)的問(wèn)題問(wèn)題是尾部血液循環(huán)差(B) A decrease in the number of orientations in space that a snake can assume without loss of blood flow to the brain 不符，應(yīng)為having the heart close to the head increases the spatial orientations a snake can assume without losing blood flow to the brain,(C) A decrease in blood pressure at the snake’s midpoint when it is tilted at various angles with its head up。是SS的問(wèn)題(D) An increase in the tendency of blood to pool at the snake’s head when the snake is tilted at various angles with its head down。XF，原文說(shuō)的是pool in the lower torso(E) An increase in the amount of effort required to distribute blood to and from the snake’s tail24. The primary purpose of the third paragraph is torecognizing how the passage develops its main point. 第一段綜述有adaption，第二段通過(guò)SS表現(xiàn)的問(wèn)題來(lái)說(shuō)明TS發(fā)展adaption所要克服的問(wèn)題，第三段距離說(shuō)明adaption(A) introduce a topic that is not discussed earlier in the passage。第三段是對(duì)第一第二段的所提概念的具體例證說(shuō)明(B) describe a more efficient method of achieving an effect discussed in the previous paragraph。沒(méi)有對(duì)不同方法做對(duì)比。(C) draw a conclusion based on information elaborated in the previous paragraph。ND。(D) discuss two specific examples of phenomena mentioned at the end of the previous paragraph(E) introduce evidence that undermines a view reported earlier in the passage。XF，是做支持中心論點(diǎn)的作用 Reading Comprehension Sample Questions1525. In the passage, the author is primarily concerned with doing which of the following? assessing what the passage as a whole(A) Explaining adaptations that enable the terrestrial snake to cope with the effects of gravitational pressure on its circulatory system(B) Comparing the circulatory system of the sea snake with that of the terrestrial snake。ND(C) Explaining why the circulatory system of the terrestrial snake is different from that of the sea snake。文章重在說(shuō)明system怎樣不同，而不是為什么不同，從而說(shuō)明TS發(fā)展了adaption來(lái)適應(yīng)重力作用(D) Pointing out features of the terrestrial snake’s cardiovascular system that make it superior to that of the sea snake。ND(E) Explaining how the sea snake is able to neutralize the effects of gravitational pressure on its circulatory system。Explain的目的是說(shuō)明TS面對(duì)的重力影戲影響，但不是全文的目的。The Official Guide for GMAT174。 Review 12th Edition16Line During the 1960s and 1970s,第一個(gè)時(shí)間點(diǎn)出現(xiàn) the primary economic development strategy of local governments in the United States was to attract manufacturing industries. Unfortunately,負(fù)評(píng)價(jià)詞this(5) strategy was usually implemented at another munity’s expense: many manufacturing facilities were lured away from their moorings elsewhere through tax incentives and slick promotional efforts. Through the transfer of jobs and related revenues(10) that resulted from this practice, one town’s triumph could bee another town’s In the 1980s 第二個(gè)時(shí)間點(diǎn) the strategy shifted from this zerosum game to one called “hightechnology development,” in which local governments(15) peted to attract newly formed hightechnology manufacturing firms. Although 強(qiáng)轉(zhuǎn)折出現(xiàn)，注意轉(zhuǎn)折之后的內(nèi)容this approach was preferable to正評(píng)價(jià)詞 victimizing other geographical areas by taking their jobs, it also had its shortings 負(fù)評(píng)價(jià)出現(xiàn)，之后是對(duì)這一評(píng)價(jià)的解釋: hightech manufacturing firms employ only a(20) specially trained fraction of the manufacturing workforce, and there simply are not enough hightech firms to satisfy all geographic areas.Recently, 第三個(gè)時(shí)間點(diǎn) local governments have increasingly e to recognize the advantages 正評(píng)價(jià)詞 of yet a third(25) strategy: the promotion of homegrown small businesses. Small indigenous businesses are created by a nearly ubiquitous resource, local entrepreneurs. With roots in their munities, these individuals are less likely to be enticed away(30) by incentives offered by another munity. Indigenous industry and talent are kept at home, creating an environment that both provides jobs and fosters further ，并對(duì)正評(píng)價(jià)做以解釋邏輯簡(jiǎn)圖：19601970，以別處為代價(jià)發(fā)展本處經(jīng)濟(jì)1980，high technique的發(fā)展Recently, 本土small business的發(fā)展。強(qiáng)烈的時(shí)間順序表述Questions 26–30 refer to the passage above.26. The primary purpose of the passage is topassage discusses three different strategies or programsso the statement of the primary purpose must embrace all three