【尚友制造】36套阅读解析exer15
【尚友制造】36套阅读解析exer20
Exercise 20Diamonds, an occasional component of rare igneousrocks called lamproites and kimberlites, have never beendated satisfactorily. However, some diamonds contain minuteinclusions of silicate minerals, commonly olivine, pyroxene,and garnet. These minerals can be dated by radioactive decaytechniques because of the very small quantities ofradioactive trace elements they, in turn, contain. Usually, it ispossible to conclude that the inclusions are older than theirdiamond hosts, but with little indication of the time intervalinvolved. Sometimes, however, the crystal form of thesilicate inclusions is observed to resemble more closely theinternal structure of diamond than that of other silicateminerals. When present, the resemblance is regarded ascompelling evidence that the diamonds and inclusions aretruly cogenetic. (121 words)1. The author implies that silicate inclusions were mostoften formed(A) with small diamonds inside of them(B) with trace elements derived from their hostminerals(C) by the radioactive decay of rare igneous rocks(D) at an earlier period than were their hostminerals(E) from the crystallization of rare igneous material2. Select the sentence in the passage that indicates a wayto determine the age of silicate minerals included indiamonds.阅读1：Q1：定位至原文，Usually, it is possible to conclude that the inclusions are older than their diamond hosts，选D；Q2：由determine the age定位至dated ，即文中These minerals can be dated by radioactive decay techniques because of the very small quantities of radioactive trace elements they, in turn, contain.plays a major role in heart disease because people with familial hypercholesterolemia, a genetic defect, have six to eight times the normal level of cholesterol in their blood and they invariably develop heart disease. These people lackcell-surface receptors for low-density lipoproteins (LDL‘s), which are the fundamental carriers of blood cholesterol to the body cells that use cholesterol. Without an adequate number of cell-surface receptors t o remove LDL‘s from the blood, the cholesterol-carrying LDL‘s remain in the blood, increasing blood cholesterol levels. Scientists also noticed that people with familial hypercholesterolemia appear to produce more LDL‘s than normal individuals. How, sc ientists wondered, could a genetic mutation that causes a slow-down in the removal of LDL‘s from the blood also result in an increase in the synthesis of this cholesterol-carrying protein? Since scientists could not experiment on human body tissue, their knowledge of familial hyper- cholesterolemia was severely limited. However, a breakthrough came in the laboratories of Yoshio Watanabe of Kobe University in Japan in 1980. Watanabe noticed that a male rabbit in his colony had ten times the normal concentration of cholesterol in its blood. By appropriate breeding, Watanabe obtained a strain of rabbits that had very high cholesterol levels. These rabbits spontaneously developed heart disease. To his surprise, Watanabe further found that the rabbits, like humans with familial hypercholesterolemia, lacked LDL receptors. Thus, scientists could study these Watanabe rabbits to gain a better understanding of familial hyper-cholesterolemia in humans.Prior to the breakthrough at Kobe University, it wasknown that LDL‘s are secreted from the liver in the form of a precursor, called very low-density lipoproteins (VLDL‘s), which carry triglycerides as well as relatively small amountsof cholesterol. The triglycerides are removed from theVLDL‘s by fatty and other tissues. What remains is a remnant particle that must be removed from the blood. What scientists learned by studying the Watanabe rabbits is that the removal of the VLDL remnant requires the LDL receptor. Normally,the majority of the VLDL remnants go to the liver where they bind to LDL receptors and are degraded. In the Watanabe rabbit, due to a lack of LDL receptors on liver cells, theVLDL remnants remain in the blood and are eventually converted to LDL‘s. The LDL receptors thus h ave a dualeffect in controlling LDL levels. They are necessary to prevent oversynthesis of LDL‘s from VLDL remnants andblood. With this knowledge, scientists are now well on the way toward developing drugs that dramatically lower cholesterol levels in people afflicted with certain forms of familial hypercholesterolemia.3. In the passage, the author is primarily concerned with(A) presenting a hypothesis and describingcompelling evidence in support of it(B) raising a question and describing an important discovery that led to an answer(C) showing that a certain genetically causeddisease can be treated effectively with drugs(D) explaining what causes the genetic mutationthat leads to heart disease(E) discussing the importance of research onanimals for the study of human diseaseFor the following question, consider each of the choices separately and select all that apply4. The passage supplies information to answer whichof the following questions EXCEPT?A Which body cells are the primary users of cholesterol?B How did scientists discover that LDL‘s aresecreted from the liver in the form of a precursor?C Where in the body are VLDL remnantsdegraded?5. The passage implies that if the Watanabe rabbitshad had as many LDL receptors on their livers asdo normal rabbits, the Watanabe rabbits wouldhave been(A) less likely than normal rabbits to develop heart disease(B) less likely than normal rabbits to develop high concentrations of cholesterol in their blood(C) less useful than they actually were to scientistsin the study of familial hypercholesterolemiain humans(D) unable to secrete VLDL‘s from their livers(E) immune to drugs that lower cholesterol levels in people with certain forms of familial hypercholesterolemia6. The passage implies that Watanabe rabbits differfrom normal rabbits in which of the following ways?(A) Watanabe rabbits have more LDL receptorsthan do normal rabbits.(B) The blood of Watanabe rabbits contains moreVLDL remnants than does the blood ofnormal rabbits.(C) Watanabe rabbits have fewer fatty tissues thando normal rabbits.(D) Watanabe rabbits secrete lower levels ofVLDL‘s than do normal rabbits.(E) The blood of Watanabe rabbits contains fewerLDL‘s than does the blood of normalrabbits.迄今为止已有相当一段时间，科学家们相信胆固醇（cholesterol）在诱发心脏病这方面起着甚为重要的作用，因为带有家族性高胆固醇血症（familialhypercholesterolemia）——一种基因缺陷——的人，其体内的胆固醇含量是正常含量的六至八倍，而这些人毫无例外地患有心脏病。
表达很伤感的经典诗句集锦
表达很伤感的经典诗句集锦简单的语言文字，在诗人艺术化的创造后，具有直透心灵的力量，带给我们欢乐或伤悲。
有些诗词，一读就无限伤感。
下面是小编给大家带来的表达很伤感的经典诗句集锦，欢迎大家阅读!《唐多令·惜别》【宋】吴文英何处合成愁?离人心上秋。
纵芭蕉不雨也飕飕。
都道晚凉天气好;有明月、怕登楼。
年事梦中休，花空烟水流。
燕辞归、客尚淹留。
垂柳不萦裙带住，漫长是、系行舟。
简析：怎样合成一个“愁”字，是离人心上加个秋字。
秋雨停歇之后，风吹芭蕉，冷风嗖嗖。
别人都说晚凉的天气最好，可这明月高悬之夜，我却不敢登楼，怕引起绵绵地思念。
燕子都飞回南方了，只有我这游子在异地停留。
年光消逝，往事如梦，异地游子的心情有谁能够体会呢?《春游》【宋】陆游沈家园里花如锦，半是当年识放翁。
也信美人终作土，不堪幽梦太匆匆。
简析：陆游和唐琬本为结发夫妻，可因母亲阻挠，两人被迫分离，多年后，当两人在沈园相遇后，俱是神伤，留下了千古流传的《钗头凤》。
其实，陆游的心里一直记着唐琬。
陆游84岁时，再游《沈园》，写下这首《春游》诗。
沈园的花开得真好，这些花应该认识当年频来游玩的陆游吧!想起唐琬早已逝去，化作尘土，美好的过往只能在梦里重温，可却为什么又那么匆匆。
《因雨和杜韵》【明】王阳明晚堂疏雨暗柴门，忽入残荷泻石盆。
万里沧江生白发，几人灯火坐黄昏?客途最觉秋先到，荒径惟怜菊尚存。
却忆故园耕钓处，短蓑长笛下江村。
简析：雨来得这么突然，雨打在柴门上，打在池塘的残荷上，远行的人头发早已花白，我们就这样枯坐着直到黄昏。
只有远行的人最能感受到秋声，想起故园，人们穿着蓑衣归来了。
故园万里，在这个凄清的雨夜，最能勾起人的愁绪。
《踏莎行》【宋】吕本中雪似梅花，梅花似雪，似与不似都奇绝。
恼人风味阿谁知，请君问取南楼月。
记得去年，探梅时节，老来旧事无人说。
为谁醉倒为谁醒，到今犹恨轻离别。
简析：这是一首借梅怀人词，冰清玉洁的梅花开放了，对此美景，更引相思。
【尚友制造】36套阅读解析exer10
Exercise 10Currently, the paramount problem in the field of biomaterials, the science of replacing diseased tissue with human-made implants, is control over the interface, orLine surface, between implanted biomaterials and living5 tissues. The physical properties of most tissues can be matched by careful selection of raw materials: metals, ceramics, or several varieties of polymer materials. Eventhe requirement that biomaterials processed from these materials be nontoxic to host tissue can be met by10 techniques derived from studying the reactions of tissue cultures to biomaterials or from short-term implants. But achieving necessary matches in physical properties across interfaces between living and non-living matter requires knowledge of which molecules control the bonding of15 cells to each other—an area that we have not yet explored thoroughly. Although recent research has allowed us to stabilize the tissue-biomaterial interface by controllingeither the chemical reactions or the microstructure of the biomaterials, our fundamental understanding of how20 implant devices adhere to tissues remains woefully incomplete. (159 words)1. According to the passage, the major problemcurrently facing scientists in the field of bio-materials is(A) assessing and regulating the bondingbetween host tissue and implants(B) controlling the transfer of potentially toxicmaterials across the interface of tissueand implant(C) discovering new materials from which toconstruct implant devices(D) deciding in what situations implants areneeded(E) determining the importance of short-termimplants to long-term stability of tissueimplant interfaces2. The passage suggests which of the followingabout the recent research mentioned in the lastsentence ?(A) It has solved one set of problems but hascreated another.(B) It has concentrated on secondary concernsbut has ignored primary concerns.(C) It has improved practical applications ofbiomaterial technology without providing acomplete theoretical explanation of thatimprovement.(D) It has thoroughly investigated properties ofbiomaterials but has paid little attentionto relevant characteristics of human tissue.(E) It has provided considerable information onshort-term implant technology but littleon long-term implant technology.阅读1：Q1：定位至原文：line 11；But achieving necessary matches in physical properties across interfaces between living and non-living matter requires knowledge of which molecules control the bonding of cells to each other—an area that we have not yet explored thoroughly. 所以选A；Q2：原文说fundamental understanding还是incomplete，尽管要的结果可以实现了。
【尚友制造】36套阅读解析exer16
Exercise 16Questions 1 to 3 are based on the following reading passage.One advantage of breeding African bees with otherbee types (Africanization) may be resistance to the para-sitic mite Varroa jacobsoni, a major threat to modernLine beekeeping. In parts of Europe, this mite is devastating5 honeybees and killing many colonies despite preventive measures by beekeepers. But in Brazil Varroa jacobsonihas been present in Africanized bees since 1972 withoutthe loss of a single colony, even though beekeepers there undertook no preventive measures. The mites lay eggs10 within the brood cells of immature bees, and developing mites feed on the hemolymph (blood) of bee pupae. But fewer mites reproduce in Africanized bees than inEuropean bees. Some researchers point out that this resistance may be related to the Africanized worker bee's15 shorter development period, which prevents some mites from reaching maturity. Recently the mite has become a serious problem in colonies of European bees in North America. Africanization of these bees may be the best safeguard against this parasite.For the following question, consider each of thechoices separately and select all that apply1. The author cites all of the following as evidence that Africanized bees' resistance to Varroa jacobsoni issuperior to that of European bees:□A Varroa jacobsoni is killing many bee colonies inEurope.□B Beekeepers in Brazil have not used preven vemeasures to protect their colonies.□C At least some European bee colonies have beensaved by preventive measures.2. Select the sentence that indicates one possible reasonthe Africanized bees in Brazil have successfullyresisted Varroa jacobsoni .3. The author's argument regarding the resistance of Africanized bees to Varroa jacobsoni would bemost weakened if which of the following were true?○A The bees in Brazil were resistant before being Africanized.○B The number of bee colonies in North American increased dramatically whereas the number inBrazil remained unchanged.○C Mites found in European bees reproduce at afaster rate than mites of identical speciesfound in the bees in Brazil.○D Africanized bees retain many of the characteris-tics of European bees.○E Bee colonies in Europe continue to producegreater quantities of honey than do those inBrazil.Questions 4 and 5 are based on the following reading passage.Innovative as it is, Luis Valdez' acto owes much to the theater traditions or other periods and regions. Like early Spanish American religious dramas, secular folk dramas,Line and the Mexican carpas of a somewhat later period, actos 5 are usually performed outdoors by traveling groups of players or by local theater groups. The improvised comic satire of the actos is often attributed to Valdez' study ofthe Italian commedia dell' arte of the sixteenth century, although some critics see it as a direct reflection of the10 comic and improvisational qualities of the more contemporary and local carpas of Mexican theater. The Italian influence is likely, whatever Valdez‘ immediate source: the Mexican carpas themselves are said to have originated from the theater pieces of a sixteenth-century15 Spanish writer inspired by encounters with Italian commedia dell'arte troupes on tour in Spain.4. Which of the following best describes the author's evaluation of the views of the critics?(A) Their views, if correct, do not preclude theexistence of an Italian influence on the acto.(B) Their views are unlikely to be correct, giventhe differences existing between Mexican andMexican American theater.(C) Their views concerning the Mexican carpa are essentially correct, but they lack familiaritywith the acto.(D) Their views are probably more correct than theviews of those who have attributed thecomic and improvisational elements of theacto to earlier sources.(E) Their views betray a lack of familiarity withthe commedia dell'arte.5. Which of the following, if true, most strengthensthe author's argument concerning the debt of theacto to the theater traditions of other periods andregions?(A) Many popular forms of theater rely heavilyon improvisation.(B) Plays resembling the acto in structure werewritten in the 1970's by West Africanplaywrights who are interested in dramatizingthe richness of their own cultures.(C) The use of masks has, at one time or another,been characteristic of the theater traditionsof almost all cultures, even those most isolatedfrom outside influences.(D) During a strike, it is common for union membersto present musical skits dramatizing thevalues of solidarity and resistance.(E) Before 1965 Luis Valdez had attended manyperformances of traditional Mexican theatergroups touring the western United States.阅读1：Q1. 细节定位：哪个证据A蜜蜂比E蜜蜂抵抗寄生虫能力更强？A. 定位L4：“In parts of Europe, this mite is devastating honeybees and killingmany colonies despite preventive measures by beekeepers”B. 定位在上句的下一句：“But in Brazil Varroa jacobsoni has been present in Africanized bees since 1972 without the loss of a single colony, even though beekeepers there undertook no preventive measures”C. 表达的意思和题干相反；正确答案AB；Q2. 仔细读题干问的是reason：定位在L13：“Some researchers point out that this resistance may be related tothe Africanized worker bee's shorter development period” 正确答案Q3. 削弱题：一定要仔细看题目中要求削弱的对象是“resistance of Africanized bees to Varroa jacobsoni”，注意不要随意添加新信息并且进行多步推理。
20条正能量早安心语语录
20条正能量早安心语语录1、有些人已过去，你忘不掉她不代表你还爱她，只是珍惜或怀念当时的美好而已。
2、对于世界来说，你是一个人；对于某个人来说，你是整个世界。
3、就是做出选择，一旦你做出了你的选择，你就必须活在你的决定中。
4、有时候，明知道什么事情不可能，还非要揣着希望，明明想为什么人把命都赌上，可是连下注的理由都没有。
5、我捧你的时候你是杯子，松手的时候你就是个玻璃碴子。
--给那些不懂珍惜的人。
6、拥抱真是很奇妙，虽然两颗心靠得很近，却看不见对方的脸。
7、成长会让人明白，唯一后悔的只是那些自己不曾尝试的事。
8、最可怕的人是这一秒能和你交心交肺，下一秒也能淋漓尽致的出卖你。
9、再伟大的巨人也有他渺小的瞬间，再渺小的凡人也有他伟大的时刻。
10、每个人都有一段悲伤，想隐藏却欲盖弥彰。
每个人都有一段悲伤，想隐藏却在生长。
11、有一种笨蛋考虑了所有人的感受了，最终委屈了自己！12、承诺本来就是男人与女人的一场角力，有时皆大欢喜，大部分的情况却是两败俱伤。
13、任何事，只要你没亲身体验过，那么就算别人表现得再蠢，你也没有资格点评别人！14、如果承诺只是取悦，和玩笑有什么区别？15、最了解你的人不是你的朋友，而是你的敌人。
16、生活不是用来妥协的，你退缩越多，能让你喘息的空间就越有限。
17、不要在别人的眼光里找快乐，否则永远悲哀;不要在别人的嘴巴里找，否则永远卑微。
18、许多事，看开了，便会峰回路转；许多梦，看淡了，便会云开日出。
19、人的烦恼就12个字：放不下，想不开，看不透，忘不了。
20、不品人间酒，谁知其中醉；不陷世间情，谁知其中累。
我的母亲阅读答案（邹韬奋）
我的母亲阅读答案（邹韬奋）我到十岁的时候，读的是“孟子见梁惠王”。
到年底，父亲要“清算”我平日的功课。
在夜里亲自听我背书，很严厉，桌上放着一根两指阔的竹板。
我背向着他立着背书，背不出的时候，他提一个字，就叫我回转身来把手掌展放在桌上，他拿起这根竹板很重地打下来。
我吃了这一下苦头，痛是血肉的身体所无法避免的感觉，当然失声地哭了，但是还要忍住哭，回过身去再背。
不幸又有一处中断，背不下去;经他再提一字，再打一下。
呜呜咽咽地背着那位前世冤家的“见梁惠王”的“孟子”!我自己呜咽着背，同时听得见坐在旁边缝纫着的母亲也唏唏嘘嘘地泪如泉涌地哭着。
我心里知道她见我被打，她也觉得好像刺心的痛苦，对我表着十二分的同情，但她却时时从呜咽着的、断断续续的声音里勉强说着“打得好”。
她的饮泣吞声，为的是爱她的儿子;勉强硬着头皮说声“打得好”，为的是希望她的儿子上进。
如今想起母亲见我被打，陪着我一同哭，那样的母爱，仍然使我感念着我的慈爱的母亲。
背完了半本“梁惠王”，右手掌被打得发肿，有半寸高，偷向灯光中一照，通亮，好像满肚子装着已成熟的丝的蚕身一样。
母亲含着泪抱我上床，轻轻把被窝盖上，向我额上吻了几吻。
【阅读题】8、请结合上下文，说说“清算”一词在文中的含义和作用。
(2分)9、文中描写母亲的语言只有3个字：“打得好”，请你揣摩出当时母亲说这句话的心情。
(2分)10、选文在描写母亲的细节中，最使你感动的细节是哪一处?试找出一例并写出让你感动的理由。
(3分)11、母亲在作者童年的记忆中，只留下了几个闪光的片段，作者正是摄取这几个闪光的片段来塑造母亲形象的。
每一位母亲对自己的儿女都充满了关心爱护，请你也用简洁的语言写出你所感受到的母爱中最动情的那一瞬间。
(3分)12、结合上文，阅读胡适的《我的母亲》片段，对两位母亲的教育方法作出简要评价。
(4分)母亲管束我最严，她是慈母兼任严父。
但她从来不在别人面前骂我一句，打我一下。
我做错了事，她只对我一望，我看见了她的严厉眼光，就吓住了。
描写童话故事的作文合集六篇
描写童话故事的作文描写童话故事的作文合集六篇在日常的学习、工作、生活中，大家都经常看到作文的身影吧，作文是从内部言语向外部言语的过渡，即从经过压缩的简要的、自己能明白的语言，向开展的、具有规范语法结构的、能为他人所理解的外部语言形式的转化。
相信许多人会觉得作文很难写吧，下面是小编精心整理的描写童话故事的作文6篇，希望能够帮助到大家。
描写童话故事的作文篇1在一个美丽的大森林里，住着猪爸爸和猪妈妈和猪宝宝，它们的儿子叫嘻嘻，嘻嘻长着胖乎乎的身子，小小的嘴巴，大大的眼睛，大大的耳朵，嘻嘻最爱吃又香又甜的大西瓜了。
有一天，天气很热，火辣辣的太阳炙烤着大地，猪爸爸说：“嘻嘻到瓜地里搬一个西瓜回来，降降温”，于是，嘻嘻很快的到了西瓜地了之后，没一会儿它就在一大片绿油油西瓜地里，找到了一个又大又圆的西瓜，于是嘻嘻搬呀搬，搬不动，它左思右想，抓耳挠腮，沉没了一会儿，咦！有办法了！西瓜搬不动，我可以让他滚起来，于是它找了个铁环，把它套在西瓜上，拉着回家，好轻松呀！小猪高兴极了，一边拉着西瓜，一边唱着动听的歌，不知不觉，不一会儿到家了，嘻嘻把刚才发生的事情一字不落的给爸爸叙述了一遍，爸爸说：“嘻嘻你真棒，以后不管发生什么事情，首先要学会动脑筋，不要放弃，不要悔心，让困难烟消云散。
”嘻嘻开心的笑了，因为爸爸表扬嘻嘻。
后来全家人吃上了又香又甜的大西瓜，嘻嘻感觉今天的西瓜格外的香甜，好吃。
描写童话故事的作文篇2聪明王国里的每个人都很聪明,他们将自己的聪明才智完美的运用到了自己的生活当中,他们从不知道愚笨为何物,这个国家甚至没有任何人被欺骗。
可是有一天,一个愚笨的人的到来,让他们十分惊奇。
这个人是从遥远的东方而来,因为船难漂流至此,于是,他受到了国王的接见。
他跟国王描述了自己的国家,令国王十分诧异。
国王无法相信他的话,甚至认为他是个出色的骗子,因为他所说的实在是太不可思议了。
在那个国度,女人没有地位,没有生出儿子的女人就会被视为不详而受到全国的唾弃,而且为了生儿子,男人可以娶一大批老婆,而没有儿子的人就会向有很多儿子的人提亲,请求可以让他的女儿娶那个幸运的人的一个儿子,而且奉上很多财宝。
这世界需要你作文600字
这世界需要你作文600字万物有了阳光的呵护，才可以茁壮成长;鸟儿有了天空的庇护，才可以自由翱翔;这世界也需要你跟我的存在，才能成为我们的世界，以下是关于这世界需要你的范文，欢迎阅读!这世界需要你600字1父母把你生下是为了让你健康成长。
他们让你吃好东西，让你锻炼。
他们需要你健康成长;父母需要你考高分，给你报各类特长班，他们需要你考上北大、清华，完成他们没有完成的学业;你小的时候，他们需要你的笑声给他们带来欢笑，你大的时候，他们偶尔也拿你当出气筒。
有时，他们躺在沙发上，需要你给他们倒杯水，打开电视。
老师需要你上课认真听讲，掌握新的知识;老师需要你认真完成作业，复习、巩固新知识，让你能消化、理解。
老师需要你实现他的职业价值。
桃李满天下是老师的愿望。
当老师的头发被粉笔灰染白时候，每一根白发都希望你成为一棵棵栋梁之材。
老师需要和你一起完成国家赋予他的教育职责，打好以后人生发展的基础。
朋友也需要你。
当他碰到疑惑时，会需要你解答;当他碰到烦恼时，会需要你聆听;当他碰到病魔时，会需要你照顾。
朋友有了快乐，会和你分享，朋友有了痛苦，有你一起分担。
有时候，朋友就成了你生命中的一部分，就像水和空气一样离不开。
你需要朋友的友谊，朋友更需要你!你生活的这座城市需要你。
当你坐在公交车上时，看到有老爷爷或老奶奶上车时，需要你给他让座，这个城市的文明需要你来体现。
当你看到别人往地上扔垃圾时，需要你捡起来把它放到垃圾桶里去，这个城市的环境需要你来保护。
当你走到大街上，需要你自己遵守交通秩序，人多的时候，需要你去排队，这个城市的秩序需要你来维护。
当你将来长大了，社会需要你。
需要你把农村变得更富裕，需要你把城市变得更繁荣，需要你把国家变得更强大。
这个社会需要你们把它变得更文明，更公正，使大家过得更幸福。
不过要做到这一切，就需要你把自己的才能，自己的精力，自己的热情奉献给这个社会。
这个世界需要你，你还不赶快努力?这世界需要你作文600字2人是自然智慧的最高体现，在近百年的时间中，人体的细胞尽管更替过许多次，但秩序并不会改变。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
Exercise 15Questions 1 to 3 are based on the following reading passage.Typically the queen honeybee is mother to all the beesin a hive; after mating with several male drones fromother colonies, she lays fertilized eggs that develop intoall-female worker bees and lays unfertilized eggs that5 become all-male drones. According to natural selection theory, a worker would enhance her fitness --or ability to propagate her genes-by hatching her own eggs in additionto or in place of the queen's. But a typical worker's fitness would be diminished if other workers' sons, who have10 less genetic material in common with the worker, supplanted the queen's sons (the worker's brothers). Researchers, testing the hypothesis that workers usually somehow block each other's attempts to reproduce, put unfertilized eggs laid by workers and by the queen into a15 hive. Other workers quickly devoured the workers' eggs while leaving the queen's eggs alone.1. Select the sentence that is used as evidence thatworkers worker bees are capable of thwarting eachother's attempts to reproduce.2. The inner workings in a honeybee hive that regulate reproduction, as they are described in the passage,are most similar to which of the followingtypes of human societies?(A) A totalitarian society in which citizens'"policing" of each other's actions helps tomaintain the status quo.(B) A pacifist state in which the individuals arestrongly opposed to the use of violence oraggression to settle disputes.(C) A democratic society in which the voice of themajority rules.(D) A parliamentary society in which a few members, organized as a cabinet wield executive power.(E) An anarchic state in which order and stablesocial structures are lacking3. The passage best supports which of the following inferences about the fitness of honeybees?(A) Reproduction diminishes any individualhoney-bee's fitness.(B) An individual worker's fitness can be maintainedwithout the individual herself reproducing.(C) A hierarchy of stronger and weakerindividuals among the worker beesdetermines which individuals will reproducewhen a queen dies.(D) While a queen reigns, the fitness of theworker bees is increased and that of thedrones is diminished.(E) Fitness encourages worker bees to hatchhoneybee eggs without regard for therelatedness of the young to the "parent".Q1. 问题问的是use evidence：所以答案是“Other workers quickly devoured the workers' eggs while leaving the queen'seggs alone。
”Q2. 问的类比对象是“inner workings in a honeybee hive that regulate reproduction”。
A 选项和题干一样是在一个集群中，采用一种互相的限制措施，达到一种稳定平衡。
Q3. “a typical worker's fitness would be diminished if other workers' sons, who have less genetic material in common with the worker, supplanted the queen's sons” 取逆反就是选项的感觉。
正确答案B；Questions 4 and 5 are based on the following readingpassage.The complications frequently accompanying diabetes,such as impairment of vision and of kidney function, arenow thought to result from the lack of continuous controlof blood glucose concentrations. The healthy pancreas,in response to increases in blood glucose concentration,releases small quantities of insulin throughoutthe day and thereby maintains the concentration withinphysiological limits (normoglycemia). But the diabeticgenerally receives only one large dose daily. Thediabetic‘s blood glucose concentration can thus fluctuategreatly during the interval between doses, and it hasbeen suggested that the complications result from theperiods of high concentrations of blood glucose(hyperglycemia). Many investigators thus believe thatrestoration of normoglycemia might halt the progressionof such complications and perhaps even reverse them.For the following question, consider each of thechoices separately and select all that apply4. The author provides information that would answer which of the following questions?□A What is hyperglycemia?□B What is one cause of hyperglycemia?□C What are some of the organs that can be adversely affected by hyperglycemia?5. Select the sentence that shows the cause of radical changes in the diabetic‘s blood glucose concentration.Questions 6 to 8 are based on the following reading passage.The success of fluoride in combating dental decay is well established and, without a doubt, socially beneficial. However, fluoride's toxic properties have been known for a century. In humans excessive intake (for adults, over 4 milligrams per day) over many years can lead to skeletal fluorosis, a well-defined skeletal disorder, and in some plant species, fluoride is more toxic than ozone, sulfur dioxide, or pesticides.Some important questions remain. For example, the precise lower limit at which the fluoride content of bone becomes toxic is still undetermined. And while fluoride intake from water and air can be evaluated relatively easily, it is much harder to estimate how much a given population ingests from foodstuffs because of the wide variations in individual eating habits and in fluoride concentrations in foodstuffs.6. The passage suggests that it would be easier to calculate fluoride intake from food if○A adequate diets were available for most people.○B individual ea ng habits were more uniform○C the fluoride content of food was more varied○D more people were aware of the fluoride contentof food○E methods for measuring the fluoride content offood were more generally agreed on7. One function of the second paragraph of the passage is to○A raise doubts about fluoride's toxicity○B introduce the issue of fluoride's toxicity○C differen ate a toxic from a nontoxic amount offluoride○D indicate that necessary knowledge of fluorideremains incomplete○E discuss the foodstuffs that are most likely tocontain significant concentrations of fluorideFor the following question, consider each of thechoices separately and select all that apply8.The passage suggests which of the following aboutthe effect of fluoride on humans?□A The effect of fluoride intake from water and airis relatively difficult to monitor.□B An intake of 4 milligrams over a long period oftime usually leads to a skeletal disorder in humans.□C An intake of slightly more than 4 milligrams foronly a few months is not likely to be life-threatening.阅读1：Q4. 回答问题：A. “high concentrations of blood glucose(hyperglycemia)”告诉了我们答案；B. “The diabetic‗s blood glucose concentration can thus fluctuate greatly duringthe interval between doses”之前告诉了我们剧烈浮动（包括高和低）的原因；C. 文章确实讲了“result from the periods of high concentrations of bloodglucose (hyperglycemia)”说这个并发症是由它引起的，但是没有说organ；Q5. 正确答案：But the diabetic generally receives only one large dose daily。