大学英语六级长难句解析100句
英语六级阅读的真题长难句解析
英语六级阅读的真题长难句解析
1. While pensioners, particularly elderly women, make up a large proportion of those living alone, the newest crop of singles are high earners in their 30s and 40s who increasingly view living alone as a lifestyle choice.
【译文】尽管大局部单独生活的.人是靠养老金生活的老年人，尤其是老年女性，但是最新消失的这群单身主义者却正值三十岁到四十岁的壮年。
这些人收入丰厚，渐渐把单身看作是一种生活方式的选择。
【析句】复合句。
主句the newest crop of singles are high earners..., who increasingly view living alone as...是定语从句修饰主句，而主句前while引导让步状语从句，具有转折语气。
2. Supporters of the biotech industry have accused an American scientist of misconduct after she testified to the New Zealand government that a genetically modified bacterium could cause serious damage if released.
【译文】一位美国女科学家向新西兰州政府证明，一种基因改造细菌假如泄露到试验室外，可能会导致严峻破坏，随后生物科技产业的支持者对她的这种行为表示了剧烈责备。
大学英语六级阅读真题长难句解析
大学英语六级阅读真题长难句解析下面是英语六级阅读真题长难句解析，供考生参考学习。
1. At some point, while researchers work on figuring out where the truth lies, it just makes sense to say the potential benefit outweighs the cost.【译文】在某种程度上，尽管研究者们仍在努力研究意图发现维他命所起效果的真相，但是维他命对人体可能有的益处物超所值这种说法是有道理的。
【析句】复合句。
主句it makes sense to say, 后面是省略了that的宾语从句the potential benefit outweighs the cost.主句前，while引导让步状语从句，figuring out后where the truth lies作宾语从句。
2. Its been proved to limit the number of defects in embryos, and a recent trial found that folate in bination with vitamin B 12 and a form of B6 also decreases the re-blockage of arteries after surgical repair.【译文】维他命已被证明能够减少胚胎的缺陷，并且最新试验证明叶酸和维生素B12以及B16的一种一起服用也能降低手术修复后动脉血管堵塞的可能性。
【析句】主句由and连接两个并列句，首先是Its been proved to limit the number of defects in embryos, it作形式主语，真正的主语是后面的不定式构造，然后是a recent trial found+宾语从句that folate in bination with...decreases the re-blockage of..., 注意in bination with用在句子中，谓语动词的单复数看前面的名词。
大学英语六级考试阅读长难句100句解析（一）
⼤学英语六级考试阅读长难句100句解析（⼀）1. Wearing a seat belt saves lives; it reduces your chance of death or serious injury by more than half.2. But it will be the driver’s responsibility to make sure that children under 14 do not ride in the front unless they are wearing a seat belt of some kind.3. However, you do not have to wear a seat belt if you are reversing your vehicle; or you are making a local delivery or collection using a special vehicle; or if you have a valid medical certificate which excuses you from wearing it.4. Remember you may be taken to court for not doing so, and you may be fined if you cannot prove to the court that you have been excused from wearing it.5. Professor Taiju Matsuzawa wanted to find out why otherwise healthy farmers in northern Japan appeared to be losing their ability to think and reason at a relatively early age, and how the process of ageing could he slowed down.6. With a team of colleagues at Tokyo National University, he set about measuring brain volumes of a thousand people of different ages and varying occupations.7. Computer technology enabled the researchers to obtain precise measurements of the volume of the front and side sections of the brain, which relate to intellect (智能) and emotion, and determine the human character.8. Contraction of front and side parts as cells die off was observed in some subjects in their thirties, but it was still not evident in some sixty and seventy-year-olds.9. The findings show in general terms that contraction of the brain begins sooner in people in the country than in the towns.10. White collar workers doing routine work in government offices are, however, as likely to have shrinking brains as the farm worker, bus driver and shop assistant.译⽂：1、系好安全带能够挽救性命，它能将丧⽣和重伤的概率减少⼀半以上。
大学英语六级考试100条阅读难句解析-sentence62
大学英语六级考试100条阅读难句解析:sentence62Although it ruled that there is no constitutional right to physician-assisted suicide, the Court in effect supported the medical principle of double effect, a centuries-old moral principle holding that an action having two effectsa good one that is intended and a harmful one that is foreseenis permissible if the actor intends only the good effect.【词汇突破】constitutional 宪法的physician-assisted suicide 医生关心下的自杀permissible 可以被允许的【主干识别】the Court supported the medical principle of double effect 主谓宾结构【其他成分】Although it ruled that there is no constitutional right to physician-assisted suicide状语从句;in effect作状语;a centuries-old moral principle holding that an action having two effectsa good one that is intended and a harmful one that is foreseenis permissible if the actor intends only the good effect整个都是the medical principle of double effect 的同位语。
长难句结构分析最新经典100句（3）_四六级_
长难句结构分析最新经典100句（3）41. The most thrilling explanation is, unfortunately, a little defective. Some economists argue that powerful structural changes in the world have upended the old economic models that were based upon the historical link between growth and inflation.[参考译文]很不幸，这最令人震惊的解释有一点缺陷。
一些经济学家认为世界经济结构的强有力的变化已经结束了那个以经济增长和通货膨胀的历史关联为基础的旧的经济模式。
42. The Aswan Dam, for example, stopped the Nile flooding but deprived Egypt of the fertile silt that floods left-all in return for a giant reservoir of disease which is now so full of silt that it barely generates electricity.[参考译文]例如，阿斯旺大坝使得尼罗河不再洪水泛滥，但是它也夺去了埃及以前所享有的洪水留下的肥沃淤泥--这些换宋的就是这么个疾病滋生的水库，现在这个水库积满了淤泥，几乎不能发电了。
43. New ways of organizing the workplace--all that re-engineering and downsizing--are onlyone contribution to the overall productivity of an economy, which is driven by many otherfactors such as joint investment in equipment and machinery, new technology, and investment in education and training, [参考译文]企业重组的新方法--所有那些重新设计、缩小规模的做法--只是对一个经济的整体生产力做出了一方面的贡献。
大学英语六级考试100条阅读难句解析-sentence55
大学英语六级考试100条阅读难句解析:sentence55Instead, we are treated to fine hypocritical spectacles, which now more than ever seem in ample supply: the critic of American materialism with a Southampton summer home; the publisher of radical books who takes his meals in three-star restaurants; the journalist advocating participatory democracy in all phases of life, whose own children are enrolled in private schools.【词汇突破】hypocritical 虚伪的;spectacles 景象ample 充分的radical 激进的，根本的journalist 记者，资讯工advocate 支持participatory democracy 参预制民主enrolled in 注册入学，入伍【主干识别】we are treated to fine hypocritical spectacles 主谓结构的被动态【其他成分】which now more than ever seem in ample supply 定语从句修饰spectacles;：之后列出三种虚伪的景象的代表人物，举例说明。
【微观解析】定语从句还原为一个完整的句子：The spectacles now more than ever seem in ample supply.其主干为：The spectacles seem in ample supply;now more than ever为状语。
英语长难句精解100句经典
英语长难句精解100句经典英语学习的道路上，长难句就像一座座高峰，让人望而生畏。
可要是掌握了这100句经典的长难句精解，那就仿佛是手握登山的绳索，能一步步向着英语的高峰攀登。
我有个朋友叫小李，他呀，一看到英语长难句就头大。
有一次，他拿着一个句子来找我，那句子长得就像一条蜿蜒无尽的长蛇。
“I, who have been living in this bustling city for years, find it extremely difficult to adapt to the tranquil rural life all of a sudden, especially when considering the huge differences in living environment, pace of life and social interactions between the two.”（我在这个繁华的城市生活了多年，突然发现很难适应宁静的乡村生活，特别是考虑到两者在生活环境、生活节奏和社会交往方面的巨大差异。
）小李皱着眉头说：“这都是啥呀，我都晕了。
”我笑着跟他说：“你看啊，这个‘wh o have been living in this bustling city for years’是个定语从句，用来修饰‘I’的，就像给‘我’这个主角加了个详细的身份描述。
”小李似懂非懂地点点头。
这100句经典长难句里啊，很多句子都像这个一样。
比如说“Not only does he have excellent academic performance, but also he is very good at various sports, which makes him a popular figureamong his classmates.”（他不仅学业成绩优异，而且擅长各种体育运动，这使他在同学中很受欢迎。
大学英语六级真题阅读长难句分析
大学英语六级真题阅读长难句分析1. In our culture, the sources of what we call a sense of “mastery”—feeling important and worth-while-and the sources of what we call a sense “pleasure”-finding life enjoyable-are not always identical. (1994. 阅读. 1. Text 4) 【译文】在我们的文化中，我们常说的“控制感”——感觉自己很重要有价值，与“快乐感”——发现生活的乐趣，它们的来源是不尽相同的。
【析句】例句1句子看起来很长，但结构并不复杂。
句子主干是the sources of... and the sources of...are not always identical,有两个并列的主语the sources of,而两个of后各有一个what引导的宾语从句what we call a sense of...。
同时，主语后各有一个现在分词伴随状语，位于破折号后。
2. Ironically, those things that keep us from knowing another person too well (e.g., secrets and deceptions) may be just as important to the development of satisfying relationship as those things that enable us to obtain accurate knowledge about a person (e.g., disclosure and truthful statements). (1995. 阅读1. 1. Text 1)【译文】让人感到讽刺的是，那些阻碍我们了解别人的东西(比如秘密和欺骗)对于培养令人满意的友谊，或许与那些使我们准确了解别人的东西(比如坦白和真话)同样重要。
大学英语六级考试100条阅读难句解析-sentence52
大学英语六级考试100条阅读难句解析:sentence52I believe that the most important forcesbehind the massive MA wave are the same that underlie the globalizationprocess: falling transportation and communication costs, lower trade andinvestment barriers and enlarged markets that require enlarged operationscapable of meeting customers demands.【词汇突破】MA 为mergers and acquisitions 的缩写表示合并和兼并的意思为经济术语。
underlie 构成的基础;导致发生。
例如：The social problems underlyingthese crises remain unsolved.(引起这些危机的社会问题尚未解决。
)trade and investment barriers 贸易和投资壁垒globalization process 全球化进程【主干识别】Ibelieve that+宾语从句【其他成分】the mostimportant forces behind the massive MA wave are the same 为宾语从句主干;that underlie theglobalization process为定语从句;：后为对forces的解释;【微观解析】三种力气的并列为fallingtransportation and communication costs,以及lower trade and investment barriers 和enlarged markets后面接一个定语从句that requireenlarged operations和后置定语形容词短语：capable of meeting customers demands【难点揭秘】并列的三种力气，由于修饰语比较长和并列连词较多使其解析较难;【译文赏析】我认为巨大的并购浪潮背后的最重要的推动力和促进全球化进程的力气是一样的：即降低交通运输成本，渐渐削减贸易投资壁垒，以及为能满意消费者需求而大幅度拓展得市场。
英语六级阅读100个长难句分析（二）
英语六级阅读100个长难句分析（二）接上文哦！It is not obvious how the capacity to visualize objects and to figure out numerical patterns suits one to answer questions that have eluded some of the best poets and philosophers.词汇突破：visualize 想象figure out 发现和找出suits 使…适合主干识别：句子主语是由how引导的一个主语从句，it是句子的形式主语；句子主干为: How …is not obvious.在主语从句中主语是capacity，谓语是suits 宾语是one ;其他成分：状语为to answer…主语后加上两个动词不定式做后置定语；动词不定式中的宾语questions后面接一个that引导的定语从句。
难点揭秘：这个句子是一个由形式主语it引导的主语从句，其中难点为需要识别出主语从句中的动词suits.译文赏析：构思物体和找出数字模型的能力是如何让一个人去回答那些连最好的诗人和哲学家都回避的问题的，这点我们还不是很清楚。
Anyone who has toiled through SAT will testify that test-taking skill also matters, whether it’s knowing when to guess or what questions to skip.【词汇突破】Toil through (辛苦的经历)名词：Winston Churchill: 'Blood, Toil, Tears and Sweat”(丘吉尔演讲)sweat and toil （汗水和辛苦）He succeeded after years of toil. (他经历数年的辛劳之后成功了) SAT 美国高考全称为scholastic assessment test 学术性评估测试testify 证实matter 这里是动词，重要；sth matters 事情很重要；【主干识别】anyone 为句子的主语，will testify 为句子谓语，that引导一个宾语从句；【其他成分】that 引导的宾语从句中test-taking skill 为主语，matters 做谓语，whether 引导一个状语从句【译文赏析】任何一个曾经辛苦的经历过SAT考试的人都会证实考试的技巧也很重要，无论这种技巧是知道什么时候去猜还是知道什么问题应该跳过。
大学英语六级长难句解析100句
六级真题阅读长难句分析1.For hundreds of millions of years, turtles (海龟) have struggled out of the sea to lay their eggs on sandy beaches, long before there were nature documentaries to celebrate them, or GPS satellites and marine biologists to track them, or volunteers to handcarry the hatchlings (幼龟) down to the water’s edge lest they become disoriented by headlights and crawl towards a motel parking lot instead. (2009年6月)【分析】本句为复合句，主架为…turtles have struggled…。
For hundreds of millions of years 为介词短语作时间状语。
before…为时间状语从句，该从句采用的是there be结构，主语为or连接的三个名词（词组）：natural documentaries，GPS satellites and marine biologists和volunteers，主语后的不定式均为主语的后置定语。
lest“以免”引导状语从句，采用虚拟语气。
【译文】数百万年以来，海龟们都挣扎着从海里爬出来，到沙滩上产卵，那时候还没有自然纪录片来记录它们的活动，没有GPS卫星和海洋生物学家跟踪它们，没有志愿者用手把小海龟放到水边以防它们被桅灯搞得迷失方向而爬向旅馆的停车场。
2.The figures prompted Oceana to petition the government to upgrade the level of protection for the North Atlantic loggerheads from “threatened” to “endangered”— meaning they are in danger of disappearing without additional help. (2009年6月)【分析】本句为复合句，主架为The figures prompted Oceana…。
大学英语六级考试100条阅读难句解析-sentence91
大学英语六级考试100条阅读难句解析:sentence91While warnings are often appropriate and necessary--the dangers of drug interactions, for example--and many are required by state or federal regulations, it isnt clear that they actually protect the manufacturers and sellers from liability if a customer is injured.【词汇突破】appropriate：恰当的，合适的liability：责任（duty，obligation,commitment 的同义替换词）【主干识别】it isnt clear that +主语从句（it 为形式主语）【其他成分】while warnings are often approprite and necessary and many are required by state or federal regulations 让步状语从句；the dangers of drug interactions, for example.插入语；that they actually protect the manufacturers and sellers from liability宾语从句；if a customer is injured条件状语从句。
【微观解析】由while引导的时间状语从句中，大的并列可还原为while warnings are oftenand many warnings are required【难点揭秘】各种从句交织在一起会导致主干模糊，其中也包括消失插入语的现象【译文赏析】尽管警告时常是适当而且必需的--比如对于药物相互作用的危急提出警告--很多警告还是按州或联邦政府规定要求给出的，然而并不清晰，假如顾客受到损害时，这些警告其实是在使其生产者和销售者豁免责任。
英语六级作文长难句结构分析经典100句
1. The American economic system is. organized around a basicallyprivate-enterprise, market-oriented economy in which consumers largely determine what shall be produced by spendingtheir money in the marketplace for those goods and services that they want most.[参考译文]美国的经济是以基本的私有企业和市场导向经济为架构的，在这种经济中，消费者很大程度上通过在市场上为那些他们最想要的货品和服务付费来决定什么应该被制造出来。
2. Thus, in the American economic system it is the demand of individual consumers, coupledwith the desire of businessmen to maximize profits and the desire of individuals to maximizetheir incomes, that together determine what shall be produced and how resources are used toproduce it.[参考译文]因此，在美国的经济体系中，个体消费者的需求与商人试图化其利润的欲望和个人想化其收入效用的欲望相结合，一起决定了什么应该被制造，以及资源如何被用来制造它们。
3. If, on the other hand, producing more of a commodity results in reducing its cost, this willtend to increase the supply offered by seller-producers, which in turn will lower the price andpermit more consumers to buy the product.[参考译文]另一方面，如果大量制造某种商品导致其成本下降，那么这就有可能增加卖方和制造商能提供的供给，而这也就会反过来降低价格并允许更多的消费者购买产品。
六级阅读长难句结构分析最新经典（四）
六级阅读长难句结构分析最新经典（四）六级阅读长难句结构分析最新经典一百句(四)76. Certainly people do not seem less interested in success and its signs now than formerly. Summer homes, European travel, BMWs--the locations, place names and name brands may change, but such items do not seem less in demand today than a decade or two years ago.[参考译文] 当然，人们现在对成功及其各种标志的兴趣似乎并不亚于先前。
消夏别墅、欧陆旅行、宝马车--地点、地名以及品牌或许会有变化，但这类事物在今天被人渴求的程度也似乎不会亚于一二十年前。
77. Instead, we are treated to fine hypocritical spectacles, which now more than ever seem in ample supply: the critic of American materialism with a Southampton summer home; the publisher of radical books who takes his meals in three-star restaurants; the journalist advocating participatory democracy in all phases of life, whose own children are enrolled in private schools.[参考译文] 相反，我们被款待看到这样一些虚伪的壮观景象，他们似乎比以前的任何时候都更供应充足：美国式物质主义的批判者却拥有位于南安普顿的避暑山庄：激进书籍的出版商却在三星级餐厅享用一日三餐；倡导在人生各个阶段的参与民主制的记者，他的子女却就读于私立学校。
英语六级阅读长难句解析
英语六级阅读长难句解析英语六级阅读长难句解析汇总1. This is a difficult and unpleasant business and few animals would survive if they had to start from the beginning and learn about the world wholly by trial and error, for there are the have possible decisions which would prove fatal. (1992. 阅读. 6. Text 2) 【译文】这是个困难而又糟糕的事，因为如果动物出生后不得不从头学习生存本领，并且仅仅依靠尝试错误体验世界，那么只有极少数动物能够存活，因为它们做出的决定有可能是致命的。
【析句】复合句。
主句由and连接两个并列句子组成，This is a difficult and unpleasant business and few animals would survive, and前的句子是简单句，and后的句子后又跟有if引导的条件状语从句和for引导的原因状语从句for there are decisions,decisions又有which引导的定语从句修饰。
2. Vigorous criticism is constructive in science more than in some other areas of human endeavor because in it there are adequate standards of validity which can be agreed upon by competent scientists the world over.(1992. 阅读. 6. Text 3) 【译文】激烈的批评在科学界比在其他人类智慧领域更能起到建设性的'作用，这是因为在科学世界里有足够多的有效标准，这些标准被全世界的优秀科学家们共同认可。
大学英语六级考试100条阅读难句解析-sentence51
大学英语六级考试100条阅读难句解析:sentence51A comparison of British geological publications over the last century and a half reveals not simply an increasing emphasis on the primacy of research, but also a changing definition of what constitutes an acceptable research paper.【词汇突破】reveal 揭露constitutes 包含primacy 重要性，首要地位【主干识别】A comparison reveals notbut also 主谓宾结构【其他成分】of British geological publications定语修饰comparison, over the last century and a half定语修饰publications，an increasing emphasis on the primacy of research 宾语，a changing definition of what constitutes an acceptable research paper并列宾语【微观解析】an increasing emphasis on the primacy of research其中on the primacy of research修饰emphasis;research修饰definition ; what 引导一个宾语从句作of 的宾语，what为宾语从句中的主语。
【难点揭秘】消失并列的宾语并且在宾语中的定语又消失一个宾语从句，这样就增加了句子的简单性，并且在句中消失了好几个动态名词。
【译文赏析】将过去一个半世纪英国地质学领域的出版物做一下比较，就会发觉不仅对科研的主导地位的强调不断攀升，而且一篇可接受的科研论文所包含的内容的定义也有所变化。
大学英语六级考试100条阅读难句解析-sentence78
大学英语六级考试100条阅读难句解析:sentence78When a new movement in art attains a certain fashion, it is advisable to find out what its advocates are aiming at, for, however farfetched and unreasonable their principles may seem today, it is possible that in years to come they may be regarded as normal.【词汇突破】advisable：明智的advocate：率先提议者farfetched：牵强的【主干识别】it is advisable to find out 加时间状语从句，缘由状语从句，让步状语从句。
【其他成分】when a new movement in art attains a certain fashion时间状语从句；what its advocates are aiming at 宾语从句；for it is possible that in years to come they may be regarded as normal缘由状语从句。
【微观解析】it is possible that in years to come they may be regarded as normal形式主语从句，in yeas to come为状语，however farfetched and unreasonable their principles may seem today让步状语从句，其正常语序为：their principles may seem however farfetched and unreasonable，they 指代principles。
大学英语六级考试100条阅读难句解析-sentence71
大学英语六级考试100条阅读难句解析:sentence71Sad to say, this project has turned out to be mostly low-level findings about factual errors and spelling and grammar mistakes, combined with lots of head-scratching puzzlement about what in the world those readers really want.【词汇突破】head-scratching：令人头疼的puzzlement困惑【主干识别】This project has turned out to be findings 加上后面一系列的对于findings的修饰。
【其他成分】sad to say 插入语，圆满的说。
combined with lots of head-scratching puzzlement 非谓语结构做定语(这里修饰的是findings);about what in the world those readers really want.定语从句修饰puzzlement;in the world 做插入语。
从句的主干为：what those readers really want.【微观解析】factual errors and spelling and grammar mistakes。
这个并列结构是factual errors和spelling and grammar mistakes的并列。
combined with 相当一个连词。
【难点揭秘】非谓语结构的加入会导致解析起来比较困难。
【译文赏析】圆满的说，这个项目最终被证明是一个很低级的讨论，它着眼于错误的事实和拼写以及语法的问题，还有许多关于读者毕竟想要什么的困惑。
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六级真题阅读长难句分析1.For hundreds of millions of years, turtles （海龟） have struggled out of the sea to lay their eggs on sandy beaches, long before there were nature documentaries to celebrate them, or GPS satellites and marine biologists to track them, or volunteers to handcarry the hatchlings （幼龟） down to the water 's edge lest they become disoriented by headlights and crawl towards a motel parking lot instead. （2009 年6 月）【分析】本句为复合句，主架为⋯turtles have struggled ⋯。
For hundreds of millions of years 为介词短语作时间状语。
before ⋯为时间状语从句，该从句采用的是there be 结构，主语为or 连接的三个名词（词组）：natural documentaries ，GPS satellites and marine biologists 和volunteers ，主语后的不定式均为主语的后置定语。
lest “以免”引导状语从句，采用虚拟语气。
【译文】数百万年以来，海龟们都挣扎着从海里爬出来，到沙滩上产卵，那时候还没有自然纪录片来记录它们的活动，没有GPS卫星和海洋生物学家跟踪它们，没有志愿者用手把小海龟放到水边以防它们被桅灯搞得迷失方向而爬向旅馆的停车场。
2.The figures prompted Oceana to petition the government to upgrade the level of protection for the North Atlantic loggerheads from “threatened ” to“endangered” —meaning they are in danger of disappearing without additional help. （2009 年6 月）【分析】本句为复合句，主架为The figures prompted Oceana ⋯。
to petition the government 为不定式作prompted 的状语，to upgrade the level of protection ⋯为不定式作petition 的状语。
they are in danger ⋯help 作meaning 的宾语，相当于省略了引导词that 的宾语从句。
【译文】这些数字迫使Oceana向政府请求将对北大西洋大海龟的保护程度由“受到威胁”提升到“濒临灭绝”，这意味着如果没有额外的保护，它们将面临消失的危险。
3.But Nature is indifferent to human notions of fairness, and a report by the Fish and Wildlife Service showed a worrisome drop in the populations of several species of North Atlantic sea turtles, notably loggerheads, which can grow to as much as 400 pounds. （2009 年6 月）【分析】本句为并列复合句，主架为Nature is indifferent ⋯and⋯a report ⋯showed⋯a ⋯drop ⋯。
But 表转折。
by the Fish and Wildlife Service 为介词短语作report 的后置定语。
which can grow to as much as 400 pounds 为非限制性定语从句，修饰loggerheads 。
be indifferent to 意为“对⋯无动于衷”。
a drop in 指“在⋯方面下降”。
【译文】但是大自然对人们的平等观念却漠不关心，渔业和野生动物服务组织的一项报告显示，北大西洋好几种海龟的数量都在令人担忧地下降，尤其是一种能够长到400 磅重的大海龟。
4.The narrow strips of beach on which the turtles lay their eggs are beingsqueezed on one side by development and on the other by the threat of rising sea levels as the oceans warm. （2009 年6 月）【分析】本句为复合句，主架为⋯beach⋯are being squeezed。
on which ⋯eggs 为定语从句，修饰beach。
squeezed 后接了两个由on one side ⋯and on the other 结构连接的状语：by development 和by the threat 。
of rising sea levels 为介词短语作threat 的后置定语。
as the oceans warm 为原因状语从句。
【译文】一方面是人类的开发，另一方面是海平面因海水变暖而上升，使得海龟们产卵的狭窄沙滩正在缩小。
5.It turns out, according to Griffin, that while we have done a good job of protecting the turtles for the weeks they spend on land （as egg-laying females, as eggs and as hatchlings）, we have neglected the years they spend in the ocean. （2009 年6 月）【分析】本句为复合句，主架为It turns out ⋯that ⋯。
according to Griffin 为插入语。
that while ⋯in the ocean 为宾语从句。
while 在这里为连词，表转折。
they spend on land 为省略了引导词的定语从句，修饰的是the weeks 。
括号内内容进一步解释they spend on land ，as 相当于“作为⋯”。
they spend in the ocean 为省略了引导词的定语从句，修饰the years 。
【译文】按照Griffin 的说法，答案是这样：虽然我们对保护海龟们（产卵的母海龟，龟卵，小海龟）在岸上度过的几个星期做得很好，但是我们却忽略了它们在海里度过的岁月。
6.Ultimately we must get a handle on those issues as well, or a creature that outlived the dinosaurs （恐龙） will meet its end at the hands of humans,leaving our descendants to wonder how a creature so ugly could have won so much affection. （2009 年6 月）【分析】本句为复合句，主架为we must⋯or ⋯。
or 表条件。
get a handle on sth. 指“着手处理某事”。
that ⋯dinosaurs 为定语从句，修饰的是a creature 。
leaving our⋯为现在分词短语作结果状语。
how a⋯affection 为宾语从句，作wonder 的宾语。
固定短语meet one's end 指“迎接末日，即死亡”，at the hands of 为，指“出自⋯之手，由⋯完成”。
【译文】最终，我们必须着手处理这些问题，否则，这种比恐龙寿命还要长的生物将会在人类手中灭绝，从而给我们的后代留下疑问：为什么这么丑的生物却能获得人们如此多的关爱？7.But economists say families about to go into debt to fund four years of partying, as well as studying, can console themselves with the knowledge that college is an investment that, unlike many bank stocks, should yield huge dividends. （2009 年6 月）【分析】本句为复合句，主架为economists say families ⋯can⋯。
about to go into debt 为families 的后置定语，to fund four years 为不定式作目的状语，of partying, as well as studying 为介词短语作后置定语。
that college ⋯investment 为同位语从句，作knowledge 的同位语；that ⋯should yield huge dividends 为定语从句，修饰的是investment ，在该从句中，unlike many bank stocks 为插入语。
【译文】但是，经济学家说，那些即将要负债来支付四年的聚会和学习费用的家庭可以从以下事实得到一些安慰：上大学是一项投资，与银行股票不同的是，这项投资将有巨大的红利。
8.A 2008 study by two Harvard economists notes that the “labor-market premium to skill ”—or the amount college graduates earned that 's greater thanwhat high-school graduates earned —decreased for much of the 20th century, but has come back with a vengeance （报复性地） since the 1980s. （2009 年6月）【分析】本句为复合句，主架为 A 2008 study ⋯notes ⋯。