实是：游客会对自己钟爱的脆弱环境千万严重破坏。生态系统非常脆弱，容易遭到破坏。全世界范围内游客云集的地区都面临着危险。无论在哪个洲，游客们都危胁着那里的环境。就连喜欢艰苦跋涉的步行爱好者们也会对环境赞成危害。 　　那就是说旅游业给人们带来希望的同时，也给人类带

PETS 3是中间级，通过该级考试的考生，其英语已达到高等教育自学考试非英语专业本科毕业水平或符合普通高校非英语专业本科毕业的要求，基本符合企事业单位行政秘书、经理助理、初级科技术人员、外企职员的工作，以及同层次其他工作在对外交往中的基本需要。

人们根据自身的病情，尽量花更少的时间呆在医院里。 　　7、It has worried me a good deal for the last week, and so now I am going to put it on my dressing-table and watch it ache. 　　上周牙疼一直困扰着我，所以现在我要把它摆放在我的梳妆台，看它还怎么疼！ 　　Passage: 　　For all it flaws, medical care in the United States has been reformed [w]gigantically[/w] over the past several decades. Deaths from heart disease have fallen by 40 percent since 1970. Thanks to better detection and treatment, cancer advances have helped to raise U.S. life [w]expectancy[/w] from an average of 68 years in 1950 to 77 years today. 　　Not only have American lives grown longer, but their quality has improved. The [w]proportion[/w] of people over 65 with one or more [w]chronic[/w] disabilities—such as the inability to walk, or to get dressed, without aid—declined from greater than 25 percent in 1982 to less than 20 percent in 1999. And the development of vision-correction surgery, among many other drugs and procedures, has allowed many Americans to prolong pleasures historically with youth. 　　Of course, not all the recent improvements in American health and [w]longevity[/w] can be directly attributed to our health-care system; some are as much the result of adopting healthier habits( exercise, better diet) or of dropping unhealthy ones (smoking, too much alcohol-drinking). Still, better medical care is the [w]principal[/w] cause of improvements in American health and life span over the past 50 years. 　　But the problem is that since 1960 health-care spending has grown significantly faster than the economy, meaning that we’re spending an ever larger portion of our incomes on medical core. In 1960 health care [w=constitute]constituted[/w] 5.1 percent of the U.S. economy; in 1980 it constituted 8.8 percent; today it constitutes 13.3 percent. Meanwhile, private health-insurance [w=premium]premiums[/w]— which rose by 14 percent last year alone— are becoming [w]unaffordable[/w] for even Americans. The number of things we can do to pay for them. 41 millions of our citizens are now uninsured. So the key question is not whether health care should be rationed in the United States; it already is. Rather the question is how health care should be rationed. How should the [w]potential[/w] benefits of reduced pain, improved quality of life, or extended life be weighted against the high costs of the [w=medication]medications[/w] or procedures involved? And who should weigh them? These are hard questions with high moral stakes. But we do hope that the health-care system will cover more people. 　　参考译文： 　　因为存在缺陷，所以美国的医疗保健在过去几十年里进行了重大改革。心脏疾病导致的死亡自1970年以来下降了40%。由于较先进的监测和治疗，癌症死亡率自1990年以来一直处于下降趋势。总的来看，医疗进步使美国人均寿命从1950的68岁提高到现在的77岁。 　　美国人不仅提高了寿命，而且还提高了生活质量。65岁以上患有至少一种长期残疾——如在无人帮助下

年中，华盛顿特区与美国一起成长，现在它是美国国家的象征。从宏伟的纪念牌到无与伦比的博物馆，从首都广场到国会大厦的台阶，它以自己的特征吸引着游客。 　　宏伟的国会大厦耸立于市中心，人们能在此饱览华盛顿特区著名的风景。首都广场的硕大空间被世界上最大的博物馆群——史密森博物馆院的各种博物馆划分开来。国家航空航天博物馆展示了美国在飞行和宇宙探索方面取得的成就，从莱特兄弟的第一架双翼飞机到阿波罗号登月任务以及其他。游客们还排长队参观自然历史博物馆，了解科学知识，欣赏著名的“希望之星”。史密森博物院还包括世界著名的艺术馆。艺术爱好者们肯定会钟情不远处的国立肖像馆和国立美国艺术博物馆。 　　首都广场过去，就是高505英尺的纪念碑。在二十世纪初以前，它曾是美国最高的人造建筑。纪念碑之后是映像池，和林肯纪念堂及为在越南及朝鲜战争中受伤和阵亡的将士建造的纪念碑。位于潮汐湖畔、与杰弗逊纪念堂正对的是新建的弗兰克林.罗斯福纪念堂，它座落在波托马克岸边，每年吸引数百万游客。 　　各种政府机关的办公用地占了城市大部分空间，多数政府机关都向公众提供免费参观时段，包括白宫在内。城外不远处的占地163英亩的国家动物园里容纳了数千种动物。其中有两只是中华人民共和国作为礼物赠送给美国的大熊猫。海对岸的阿灵顿，无名烈士墓坐落在昏暗、庄严肃穆的阿灵顿国家公墓里。 　　华盛顿特区除了政界机构以外还有许多其他娱乐场所。华盛顿的戏剧非常繁荣，剧院可容纳座位数仅次于纽约。国家交响乐团和其它音乐团体全天候都有演出。作为来自世界各地的外交官们的临时家园，华盛顿所提供的饭店档次最高，而且种类繁多。 　　作为国家首都的华盛顿，其优美景色和宏大建筑将继续吸引每年数百万美国和外国游客到此参观浏览。 快戳我查看这个系列其他文章吧 >>

就是五月的第二个星期日，庆祝母亲节。第二年，费城也开始了庆祝母亲节的活动。 　 　贾维斯小姐和她的支持者们开始给教会牧师、商人、政界要员写信，要求建立全国性的母亲节。他们的努力非常成功，1911母亲节那一天几乎所

面的先行词the moon起补充说明的作用。where=on which 在月亮上 　　2、 Especially exciting are the dragon and lion dances done during the festival. 　　3、 And to cap it all the food in the restaurant is awful. It was so bad we had to eat out all the time despite having paid for meals in the price of our holiday. 　　4、 Ancient people offered the year’s first ripe grains to the gods in thanks for the crops that would sustain their communities for the coming year. 　　5、 The ancient harvest festival of Europe helped give rise to contemporary Thanksgiving Day celebrations. 　　Passage: 　　Holiday refers to the day set apart for [w]religious[/w] observance or for the [w]commemoration[/w] of some [w]extraordinary[/w] event total stoppage of work and normal business activities, including feasting, parades and carnivals, or displays of flags and speechmaking. 　　Originally, in ancient times, holidays were [w]predominantly[/w] religious in character and linked to natural events such as the annual course of the sun or the phases of the moon. The word “holiday”, in fact, is derived from “holy day”. [w]Subsequently[/w], [w]secular[/w] holidays commemorating historical occasions or distinguished persons outnumbered holy days, although many ancient religious rituals and customs have been carried over into modern times and [w=incorporate]incorporated[/w] into both secular and religious observations. Today, the outstanding holiday is one of religious observance and abstention from normal work routines, taking place on Sunday for Christians, Friday for Muslims, and Saturday for Jews. In the U.S., Sunday is not only a religious holiday but is also the only common-law holiday. 　　National holidays are [w]set aside[/w] by official government proclamation to celebrate such occasions as the achievement of independence, the founding of the nation, the adoption of a [w]constitution[/w], the birthday of the ruler, or the national patron [w]saint[/w]’s day. 　　The U.S. has no national holidays as such legal holidays—on which banks, schools, or other public [w=institution]institutions[/w] and most places of business are closed—are designated by [w]legislative[/w] enactment or by [w]executive[/w] proclamation. Congress and the president designate the legal holidays for the District of Columbia and the [w]federal[/w] territories but are without power to declare national holidays. Independence Day and other holidays are observed on a national scale as a result of action by the calendar date and requests national observance, and the states then usually enact the necessary [w]legislation[/w]. Federal statutes often specify certain days as holidays for purposes related to the legislation. 　　In order to give federal employees three-day weekends, a 1968 federal law made several changes in dates of holiday observances, effective in 1971: Washington’s Birthday now falls on the third Monday in February; Memorial Day, on the last Monday in May; Columbus Day, on the second Monday in October. Individual states later adopted these Monday holidays. 　　A number of states [w]commemorate[/w] important events in their history. In Vermont, for example, the Battle of Bennington, fought in the American Revolution, is commemorated annually on August 16; in Louisiana the Battle of New Orleans of the War of 1812 is commemorated on January 8; Patriot’s Day, commemorating the first battle of the American Revolution, is celebrated on or about April 19 in Massachusetts and Maine; and several southern states celebrate a confederate Memorial Day on different days in the spring. 　　参考译文: 　　假日是由于宗教仪式，或为纪念某些特殊事件或著名人物而特地指定的日子。假日的主要特点是部分或完全停止工作和常规商务活动。一般来说，假日往往伴有公众或私人庆祝会，包括参加宴会、游行、狂欢会，或者参观旗帜展览和做演讲等。 　　在古代，最初的假日主

异地融合了大西洋的变化。夏威夷一向居于全国旅游景点前列，是有原因的。事实上，原因远不止一个。 　　怀基基海夏威夷的最大产业——旅游业的娱乐活动中心，也是世界上最大的游乐景点之一，主

学了同等程度英语课程的水平。（此级别笔试合格成绩可替代自学考试本科阶段英语（二）考试成绩。） 通过该级考试的考生，其英语已达到高等教育自学考试非英语专业本科毕业水平或符合普通高校非英语专业本科毕业的要求，基本符合企事业单位行政秘书、经理助理、初级科技人员、外企职员的工作，以及同层次其他工作在对外交往中的基本需要。该级考生应能在生活和工作的多数情景中进行对话，不仅能够询问事实，还能询问抽象的信息，应能提供或是要求得到更清楚的阐述，同时口才也能表达简单的观点和态度，能适当运用基本的语法知识，掌握4000左右的词汇以及相关词组。 听力 第三级的题型为对话和短文理解，共25个题，形式为四选一，所占分数权重为30;大学英语四级是20个题，有听写填空或复合式听写，占20分。 词汇 PETS第三级要求考生应掌握4000左右的词汇以及相关词组，教育部1999年发布的《大学英语教学大纲》对大英四级的词汇要求为4200，高等教育自学考试大纲规PETS3定要掌握3800个词，可见PETS第三级界于大英四级和高教自考二者之间； 阅读 PETS第三级的阅读量大于高教自考和大英四级的阅读量，题型除了多项选择还有选择配伍，即要求考生阅读几个案例后选择出相关的归纳总结句与各案例相匹配。选择配伍属于国内首次见到的新题型，主要考查考生理解文章主旨要义的能力。 写作 PETS第三级写作内容包括书信（100词）和图表、图画情景作文（120词）两部分，而大英四级只有一部分，即主题句续写或图表、图画作文（100词）。可见PETS第三级对考生写作速度的要求大大高于大英四级，而且包括两种文体。 点我查看这个系列其他文章 >>

textbooks. I suggest that declining some reference book is necessary for our students to correctly study knowledge. 3. 孩子要买NIKE 鞋 We can see from the pictures that the young boy wants his mother to buy NIKE shoes for him, which reflects the trend of comparison between the children. Being lack